Click on image to Enlarge
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HYUNDAI HLCD-32XT - 32" LCD TV - MAIN POWER REGULATOR [SMPS] - SCHEMATIC DIAGRAM
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HYUNDAI HLCD-32XT - 32 INCH LCD TV - DISASSEMBLE PROCEDURE
- Lay the LCD-TV on a flat, soft and clean surface.
- Remove the screws A, B, C, D, E, F to remove the stand.
- Remove the screws marked in red to remove the rear cover.
- Remove the screws marked in red to remove the cover card reader.
- Remove the screws marked in red to remove the shield.
- Remove the screws E, F, G, H, I, J, K, L, M, N, O to remove the bezel.
- Remove the screws marked in red to remove the main board, power board and tuner board.
- Remove the screws marked in red to remove the BKT HOLD PANEL
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HYUNDAI HLCD-32XT - LCD TV - REPAIR FLOW CHARTS
TV do not start
{Click on tables to Magnify}
Abnormal display
[NG => Not Good]
ANY PERSON ATTEMPTING TO SERVICE, FAMILIARIZE HIMSELF WITH THE CHASSIS AND BE AWARE OF THE NECESSARY SAFETY PRECAUTIONS TO BE USED WHEN SERVICING ELECTRONIC EQUIPMENT CONTAINING HIGH VOLTAGES.
USE A SEPARATE ISOLATION TRANSFORMER FOR THIS UNIT WHEN SERVICING.
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HYUNDAI HLT-1751 - HLT-2051 - LCD TV - SERVICE MODE [FACTORY MODE] - SOFTWARE UPGRADE METHOD & Troubleshooting Chart
FACTORY MODE [SERVICE MODE]
- Push MUTE-MENU-OK-SLEEP key in turn at the interval of 1 second.
IF adjustment
- Input DV 5V into TP2, input 12V to TP6, Input 5V to TP4 and input 0V to TP5, monitor voltage of TP3, input 38.9 MHz signal to TP1, and use a non-inductance screw driver to adjust IFT L207 so that TP3 voltage is 1.65V
- Input DC 5V into TP2, input 12V to TP6, Input 0V to TP4 and input 5V to TP5, monitor voltage of TP3, input 33.9 MHz signal to TP1, adjust potential meter RP202 to set TP3 voltage to 1.65V.
- Connect IF line of tuner, control line L and L’: three disconnected points in total.
AGC Adjustment
- Receive D-8 signal of 60 db, measure the voltage of positive pole of D201 with DC potential meter.
- Adjust potential meter RP201 to make reading of potential meter just decrease below 4.0V.Input 100db from antenna, the picture should not appear non-synchronized and distorted, input weak signal of 35 dB--40 dB, color should not disappear, picture synchronizes, normal sound.
- Select a serial connection wire and a VGA connection wire and then connect them by means of a patch panel
- Use a serial wire to connect the PC to the patch panel and set TV set to off state
- Open the software upgrade file holder and double click FlashUpgraderNT(use under window 2000/XP/NT)
Based on the computer features, set up the serial port(COM Port). Select corresponding serial port (if it’s unable to FLASH WRITE, change to another port). Baud is selected to be 115200. Then select Reset Target After Download. Click FLASH push button, it’s ready to run.
Switch on TV set the FLASH write program begins to run;
After FLASH write is over, push button “cancel” will become flash. Then shut the main power supply and its OK just switch it on again. Do not shut the power off or turn the TV set on during the FLASH write. Otherwise it may lead to no way for flash to rewrite.
TROUBLESHOOTING [NO PICTURE]
Click on tables to Magnify
NO SOUND
NO PICTURE; HAVE RASTER [SCREEN]
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TOKAI LT VHS-36 - T6608FJ - TV-VCR COMBO - SERVICE MODE - OPTION CODE SETUP - UNIVERSAL REMOTE SETUP CODES
TO ENTER SERVICE MODE
After replacing the IC202 (Memory) or Main CBA, the set value in IC202 (Memory) will be lost. So it is necessary to set up or adjust in the Service mode after its replacement.
- Turn the power on. (Use main power on the TV unit.)
- Press [STANDBY/ON], [2], [7], [1], and [MUTE] but-tons on the remote control unit in that order within 5 seconds.
- To cancel / [EXIT] the service mode, press [STANDBY/ON] button on the remote control.
- Enter the Service mode.
- Press the [STATUS] button on the remote control unit. The option code appears on the display.
- If needed, input the option code (0129) using number buttons on the remote control unit.
- To reset the software, press [PAUSE] and [5] buttons on the remote control unit. The option code is changed.
Purpose: To obtain correct operation.
Symptom of Maladjustment: The picture is dark and unit does not operate correctly.
- Connect the unit to AC Power Outlet. (exact AC230V)
- Input a color bar signal from RF (or Ext.) input and leave it for at least 20 minutes.
- Connect DC Volt Meter to TP503(+B) and TP504(GND).
- Adjust VR601 so that the voltage of TP503(+B) becomes +105±0.5V DC
Purpose: To adjust the beam current of R, G, B, and screen voltage.
Symptom of Maladjustment: White color may be reddish, greenish or bluish.
Screen Control (FBT) --- H.V./Power Supply CBA FBT= Fly Back Transformer
- Degauss the CRT and allow CRT to operate for 20 minutes before starting the alignment.
- Set the screen control to minimum position. Input the Black raster signal from RF (or Ext.) input.
- Enter the service mode. Dimmed horizontal line appears on the CRT.
- To enter the C/D/S mode, press the [VOL-] button on the remote control unit.
- To enter the CUT OFF (R) mode, press [1] button on the remote control unit.
- Turn the screen control up until dimmed horizontal line appears.
WHITE BALANCE ADJUSTMENT
Purpose: To mix red, green and blue beams correctly for pure white.
Symptom of Maladjustment: White becomes bluish or reddish.
Note: Confirm that Cut Off Adj. is correct after this adjustment, and attempt Cut Off Adj. if needed.
- Operate the unit more than 20 minutes.
- Face the unit to east. Degauss the CRT using Degaussing Coil.
- Input the White Raster (APL 100%).
- Set the color analyzer to the CHROMA mode and after zero point calibration, bring the optical receptor to the center on the tube surface (CRT).
- Enter the Service mode. Press [VOL-] button on the remote control.
- Press [4] button on the remote control unit for Red adjustment. Press [5] button on the remote control unit for Blue adjustment.
- In each color mode, Press [PROG+/PROG-] buttons to adjust the values of color.
- Adjusting Red and Blue color so that the temperature becomes 8500K (x : 290 / y : 300) ±3%.
- At this time, Re-check that Horizontal line is white. If not, Re-adjust Cut-off Adjustment until the Horizontal Line becomes pure white.
- Turn off and on again to return to normal mode. Receive APL 100% white signal and Check Chroma temperatures become 8500K (x : 290 / y : 300) ±3%.
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TOKAI LT-VHS36 - T6608FJ [CHINA] - SCHEMATIC DIAGRAMS - POWER SMPS USING 2SK2647 FET AS POWER SWITCHING, H/V SCAN OUTPUT - CRT BASE CARD SCHEMATIC & MECHANICAL ALIGNMENTS TO VCR
{Click on pictures to Magnify}
MECHANICAL ALIGNMENTS- Disconnect the AC plug.
- Remove the Top Case and Front Assembly.
- Insert a cassette tape. Though the tape will not be automatically loaded, make sure that the cassette tape is all the way in at the inlet of the Cassette Holder. To confirm this, lightly push the cassette tape further in and see if the tape comes back out, by a spring motion, just as much as you have pushed in.
- Turn the LDG Belt in the appropriate direction shown in Fig for a minute or two to complete this task.
- Disconnect the AC plug.
- Remove the Top Case and Front Assembly.
- Make sure that the Moving guide preparations are in the Eject Position.
- Turn the LDG Belt in the appropriate direction shown in Fig until the Moving guide preparations come to the Eject Position. Stop turning when the preparations begin clicking or cannot be moved further. However, the tape will be left wound around the cylinder.
- Turn the LDG Belt in the appropriate direction continuously, and the cassette tape will be ejected. Allow a minute or two to complete this task.
- If the tape path is unstable during reversing, the tape will be damaged.
- Note: Do not use an Alignment Tape for this procedure. If the unit is not correctly aligned, the tape may be damaged.
- Insert a black cassette tape into the tray and set the unit to REV. Then confirm if the tape has been curled up or bent at the Take-up Guide Post[4] or REV Post[5].
- When the tape has been curled up or bent, turn the alignment screw to adjust the height of REV Post.
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SANYO CE29FFV2-F - TRUE FLAT COLOR TV - SERVICE MODE - ERROR CODE DISPLAY & OTHER ADJUSTMENTS DETAILS - CRT 29” Philips A68ERF012X013 CRT 29” Samsung A68QCP993X001
The factory mode is a special TV working mode intended to help in the manufacturing process and it is identified on the screen with the message “FAC”. This mode is never suited for customer use. The main differences respect to normal mode are:
- The standby mode is always disabled.
- The Blue-back (no sync. signal present) is disabled.
- The customer adjustments ( volume, contrast …) work faster.
- The timer off works but it does not change to Stand-by mode.
- Change of programs and TV/AV swithing faster. Cancelled mute.
- In case of finding the TV set in Factory mode, it must be taken out of this state.
- To do so, enter the clock setting menu on the customer OSD and then exit.
SERVICE MODE
- Holding down the front key “VOL-” and simultaneously pressing the teletext green key from the remote control access the service menu. The service menu is a two level structure as shown in the diagram below.
- The active keys (local or remote) in service mode are: VOL-, VOL+, P-, P+, MENU and the digits. The navigation through this menu works the same than in the user menu.
- The P+ and P- keys allow to navigate through the options in the active menu.
- The VOL+ key opens the second level menu if available. If there is a highlighted adjustment, the VOL- and VOL+ keys allow to change it.
- The MENU key goes back one level menu. If the active menu is the main one, it exits the service mode.
- The digit keys allow direct entry for adjustments.
- The SERVICE mode is exited by pressing any other key.
CLICK ON PICTURES TO MAGNIFY
FACTORY DEFAULT DATA VALUES
SWITCH-ON SEQUENCE
In case of malfunction it is very important to know the switch-on procedure:- When the reset is at low level the microprocessor begins to work.
- It recalls from NVM the last state before the switch-off.
- If it is STAND BY, it remains in STAND BY. If it is ON, it continues the switch-on procedure.
- It waits until a falling edge in the 16/9&BSYNC signal occurs.
- The port B_HIGH is set (B_HIGH oscillating).
- It waits until a rising edge in the 16/9&BSYNC signal occurs.
- It reads the CTL1 signal. If this signal doesn’t rise before 160mS the process is stopped indicating ERROR_4.
- The Video processor is started via I2C bus. If there isn’t any answer the process is stopped indicating ERROR_1.
- There is a 1 second delay.
- The deflections start. If there are failures the process is stopped indicating ERROR_2 or ERROR_3.
- It waits until the cathode heater is warm by inspection of the video processor register bit AKB.
- The picture and the sound are switched on and the procedure is finished.
PROTECT MODE & FAILURE INDICATIONS [ERROR CODES]
The microprocessor checks periodically the different parts of the circuit and if it detects any fault in a safety defined part then it puts the TV set in PROTECTED mode. The red LED indicates the found error code. The red indicator lamp flashes every 0,3 seconds and stops during 0,7 seconds. The number of flashes depends on the error code.
The 1, 2, 5 and 6 error codes are read via the I2C Bus.
The 3 and 4 error codes are read through the CTL1, CTL2 and -PD&FAIL signals.
In all cases except ERROR_5 the power supply is set in SMPS_B_LOW state.Protect mode inhibition
- In order to facilitate the TV set repair it is possible to disable the protect mode. By pushing the M key (PL100) in a fault detection situation, the microprocessor resumes normal execution flow except in ERROR_4 state (Power Supply Short-circuit). In this case the microprocessor keeps the power supply in MPS_B_LOW state (the M key does not act).
- When it is necessary to replace the IC800, it is strongly recommended to replace also the current sensor resistors R804 and R805 (they may be also damaged or altered).
- Keep in mind that when the power supply is forced to SMPS_B_HIGH state and without current consumption at the main output (deflection stopped), B6 is the stabilized output. The minimum voltage circuit is working and B6 can go down from the nominal 10 volts to 7,5 volts approximately. Also, in this situation B1 goes up until 160 - 180 volts in TV sets with 110º CRT.
- When the TV set starts up, the microprocessor checks the non-volatile memory in order to know if it has been initialized. Even if it detects no initialization it will continue the start up procedure with a minimum default adjustment values stored in ROM. Then, in case of NVM replacement, it is necessary to initialize the non-volatile memory from the SERVICE menu (it will load a complete set of default values) and afterwards adjust all the controls to its correct value.
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AOC T942WE – T2242WE – T2442E – LCD MONITOR TV - SERVICE MODE [FACTORY MODE] ENTRY PROCEDURE - MAIN POWER & CONVERTER BOARDS SCHEMATICS
- Turn on the TV, press MENU key with remote control, then press number key 1 => 9 => 9 =>9.
- Service mode menu will be displayed.
- Click on "Autowhite 100%" in the PC and Component modes:
- PC mode: TIM = 107; PAT =48 Component mode: TIM = 311; PAT = 184
Take other model’s factory menu for example:
- To exit service mode, select 'Exit' on window, and press Ok [Enter]
MAIN POWER - SCHEMATIC
CLICK ON PICTURES TO ENLARGE
CONVERTER BOARDS SCHEMATICS
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AOC T942WE – T2242WE – T2442E – LCD MONITOR TV - DISASSEMBLE PROCEDURE
Unscrew the 4 screws to remove the STAND and BASE. T942WE/ T2442E
Disconnect the connectors; unscrew the 5 screws to remove IR BOARD and separate MAIN FRAME and BEZEL. T942WE
T2242WE
T2442E
Unscrew the 2 screws to separate panel and main frame.
Unscrew the screws to remove MAIN BOARD and POWER BOARD. T942WE
T2242WE
T2442E
The PANEL and MAIN FRAME. T942WE
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T2242WE
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T2442E
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Remove the KEY BOARD and SPEAKERS.
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AOC T942WE – T2242WE – T2442E – LCD MONITOR TV - REPAIR FLOW CHART
CLICK ON PICTURES TO MAGNIFY
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EMERSON LC320EM8 A - LCD TV - SERVICE MODE - POWER SUPPLY & BACK-LIGHT INVERTER CBA - CIRCUIT DIAGRAM [SCHEMATIC DIAGRAM] - Universal Remote Control Setup Codes
- Cut “A” portion of the attached remote control unit as shown in Fig to access the hidden service button.
SERVICE MODE
- Use the service remote control unit.
- Turn the power on.
- Press the service button on the service remote control unit. The following screen appears.
This display might differs depending on the models.
PURITY CHECK MODE
This mode cycles through full-screen displays of red, green, blue, and white to check for non-active pixels.
- Enter the Service mode.
- Each time pressing [7] button on the service remote control unit, the display changes as follows.
When entering this mode, the default setting is White mode.
MAIN POWER SUPPLY [SCHEMATIC]
CLICK ON CIRCUIT DIAGRAMS TO MAGNIFY
BACK-LIGHT INVERTER CBA
SETUP CODES
0004 0009 0044 0135 0049 0051 0189 0053 0147 0039 0130 0227 0233 0250 0252 0254 0257 0265 0266 0310 0325 0456 0040 0041 0042 0021 0023 0024 0179 00450025 0027 0030 0032 0034 0035 0037 => With GE remote control.
1003, 1004, 1009, 1011, 1018, 1021, 1023, 1025, 1026,1028, 1030, 1031, 1033, 1035, 1038, 1039, 1041, 1045,1047, 1054, 1078, 1083, 1109, 1123, 1127, 1128, 1133, 1163, 1165, 1167, 1206, 1207, 1208, 1230 => With RCA RCR311W remote control
10017, 10154, 10451, 10236, 10463, 10180, 10178, 10171, 11394, 11963 => With RCA RCR312W remote control
017,022,025,027,036,037,038,039 040,043,044,045,046,047,048,049,050 051,052,053,054,055,056,057,058,059 060,062,136,137,176,184,189,190,192,210 => With 6 IN one universal remote control.
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EMERSON LC200EM8 - 20" LCD TV - SERVICE MODE - INITIAL DATA - POWER & BACK-LIGHT INVERTER SCHEMATIC DIAGRAMS - Setup Codes to Universal Remote Control
- Cut “A” portion of the attached remote control unit as shown in Fig.
- Use the service remote control unit.
- Turn the power on.
- Press the service button on the service remote control unit.
INITIAL DATA
CLICK ON TABLE TO MAGNIFY
POWER - SCHEMATIC
BACK-LIGHT INVERTER SCHEMAIC
SETUP CODES TO UNIVERSAL REMOTE CONTROLS
GE Remote control => 0004 0009 0044 0135 0049 0051 0189 0053 0147 0039 0130 0227 0233 0250 0252 0254 0257 0265 0266 0310 0325 0456 0040 0041 0042 0021 0023 0024 0179 0045 0025 0027 0030 0032 0034 0035 0037RCA RCR311W remote control => 1003, 1004, 1009, 1011, 1018, 1021, 1023, 1025, 1026,1028, 1030, 1031, 1033, 1035, 1038, 1039, 1041, 1045,1047, 1054, 1078, 1083, 1109, 1123, 1127, 1128, 1133, 1163, 1165, 1167, 1206, 1207, 1208, 1230
RCA RCR 312W remote control => 10017, 10154, 10451, 10236, 10463, 10180, 10178, 10171, 11394, 11963
6 IN 1 remote control => 017,022,025,027,036,037,038,039 040,043,044,045,046,047,048,049,050 051,052,053,054,055,056,057,058,059
060,062,136,137,176,184,189,190,192,210
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HAIER HL42XK1 - LCD TV - SERVICE MODE - ADJUSTMENTS - Setup Codes with Universal Remote Controls
- 1st, press menu,
- 2nd, input 8893,
- Finished these operations, system will be into the factory mode menu.
TO EXIT
To exit factory menu, press the button ”Exit” in the remote control.
ADJUSTMENTS
Version, S/N, Panel Resolution
Version: The first line is the model Name and the second line is current software version.
Auto Colour
The option could only be used in the VGA and Component model. When we found the colour in the two models was abnormal. Then we can use the function to adjust it automatically.
Color Temperature
The function could adjust the Colour Temperature., used when debugging.
Audio
Dolby Banner: When turn it “ON”, the model will be in Dolby authentication state.
Compression: Compression style. RF: ATV line: AV/S-Video/YPbPr/VGA
Compression Factor: Compression state.
Downmix: output model. MTS System: used when debugging. The parameters only used when debugging, no need to be modified.
Channel
Range Scan: The function could make it to search the channels by differentiation the analogue and digital channels.
Single RF Scan: Search channels in the frequency scope set in advance.
Factory Scan: According to ANTENNA-ANALOG => ANTENNA-DIGITAL => CABLE- ANALOG => CABLE- DIGITAL to search channels, used only in project debugging.
Tuner Diagnostic: Project debugging setting, used to inspect the audio function.
Gamma: Bright: GAMMA0.8 Middle: default settings in the program Dark: GAMMA1.2
Backlight: adjust the backlight.
Burning Mode: Turn it “ON” to enter the aging model; This is for factory run-in testing. The screen would display red, green, blue and black screen repeatedly. Each colour screen could be exam at that time.
Clean Storage: The function could make the model turn back to the factory default setting.
SETUP CODES
GE => 0081 0216 0217 0157
COMCAST DTA => 11034, 10768, 11009
JUMBO-66687 => 216,217
PHILIPS SRP 3004-10 => 1175
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HAIER HL42B - LCD TV - SERVICE MODE - UNIVERSAL REMOTE CONTROL SETUP CODES
SERVICE MODE
Using the remote controller to enter into Factory Menu.
- Press Menu to call main menu displaying on the screen. And then press “9”,“ 4”,“4”,“3”,“OK” in turn. You will see the screen displaying as following. You can check the version of the software, adjust some settings. But don’t advise you change these settings. Because of the TV has already hold in the state of optimality. If you have to change these settings, connect with the local service centre.
Image Version, Atmega Version
Image Version: This is the current software version.
Atmega Version: The serial number, it is recorded for this board.
OK MENU EXIT
OK: press OK to submenu
MENU: return to upper menu
EXIT: Press “EXIT” of the remote controller to exit from factory menu.
Operate in Factory Menu
There are 5 items in the root Product Mode, Aging Mode, Shop End, Service Mode, Design Mode.
Product Mode includes 3 items, White Balance Setting, Back Light Set to Factory Default Value. Do not change the value commonly.
- Aging Mode This is for factory run-in testing.
- Shop End is for debugging, and do not change anything commonly.
- Service Mode is for debugging, and do not change anything commonly.
- Design Mode includes 4 items, Video Setting, Audio Setting, Screen Setting, Others.
- Video Setting includes 4 items, Threshold, Picture Mode, ADC Auto Adjust, Gray Step. Threshold allows you to change the adjustable range of brightness, contrast, chroma, hueand sharpness. Picture Mode allows you to change the state of picture mode, such as Vivid mode, Standard mode and Mild mode. ADC Auto Adjust and Gray Step are for debugging, and do not change anything.
- Audio Setting includes 4 items, Sound Effect, Sound Mode, Sound Curve, Headphone Sound curve. All these items are for debugging, and do not change anything commonly.
- Screen Setting allows you to change V-SIZE, V-POSITION, H-SIZE, H-POSITION of the screen displaying. Normally you need not to change anything.
Others including 2 items,
Audio Output and Set E2prom todefault. Audio Output allows you to change the volume of Audio Output. Set E2prom to default will Clear all changing you have made to the TV set’s software setting, such as Channel list you have tuned, volume, brightness, and etc. and initialize TV set’s software to the state like a new TV set bought right now.
For Universal Remote Control Set up Codes, see the previous post here.
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HISENSE PDP4220EU - STAND INSTALLATION - WALL MOUNTING - SERVICE MODE - Universal Remote Control Set up Codes
Invert the TV, and place screen side down on a soft and flat surface.
Locate the [6*M5X12] screw and mounting points found on the base of the stand and plasma bracket.
Tighten the 6 screws.
Locate the 4 screws and mounting points found on the back of the plasma TV.
Affix and tighten these [4*M5X*12]screws.
CLICK ON PICTURES TO MAGNIFY
SERVICE MODE
Enter service mode menu by follow methods:
[Balance]+[0532]:
- Press [Balance] item, and then press number [0532] button at once.
- WHITE BANLANCE: adjust white balance.
- TELETEX LANGUAGE: 0 West Germany, 1 east Germany.
- PICTURE MODE: adjust picture mode, If you adjust these data, date of all signal picture will increase same data.
- Factory initialization: presetting signal of different country.
- Clear mother chip settings: Don’t usually use it, except that program appears at abnormal. If you clear mother chip, and VGA colour isn't normal. You need auto colour VGA and HDTV, advice service hadn't better use the function.
SERVICE MODE MENU include:
NOTE: It is better amend factory data. Because it is better settings data.
Universal Remote Control Set-up codes
GE=> 0073 0182 0216
RCA RCR 311W => 1138
RCA RCR 312W => 10748
AT&T UVERSE => 1112
URC 3940 => 11363 11314 10208 10009 12098 10508 10860 10753 10698 10821 10891 10780 11170 11208 10556 11074
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FISHER - PC-R20R2 - NAKOI - MITSUI - COLUMBIA- PC-R20R2 - Using ICs STR-6653 – LA4285 – LA7840 – LA76814K or LA76810 – LC863224A-5V23- FACTORY MODE - UNIVERSAL REMOTE CONTROL SETUP CODES
TO ENTER FACTORY MODE
- Press 'Menu' key.
- Then press "Q view key", "Mute key" in turn on remote control.
- The TV set go to factory mode.
- Press the "Timer" key to go to the next factory menu.
- Go to Menu-5 status by this means.
- Press 'Menu' key to exit the factory mode.
- Press CH ▲/▼ to select items to adjust.
- Press Volume ▲/▼ to change the data value to selected item.
+B ADJUSTMENT
- Disconnect the horizontal load. Connect a 100W bulb [Filament type only] across C321.
- Switch ON the set.
- Test the voltage acorss C321, and adjust it to +110V+/-0.5V by adjusting VR601.
UNIVERSAL REMOTE CONTROL SET-UP CODES
GE: 0049 0110 0268 0180 0012
RCA RCR 311W: 1044, 1047, 1049, 1065, 1129, 1163
RCA RCR 312W: 10154, 10159
6 in 1 SUPER REMOTE: 062,063,064,193
URC 4021: 0154
URC 8080: 154, 159↧
URC A6 - UNIVERSAL REMOTE CONTROL - SET-UP CODE LIST
CABLE BoxesABC 004 042 ADELPHIA 001 110 ADVANCED NEWHOUSE 001 ALTRIO 001 AMERICAST 099 ARMSTONG 110 AT&T BROADBAND 110 AT&T IPTV 251 ATLANTIC BROADBAND 001 110 BELL SOUTH 099 BLUE RIDGE 001 110 BRESNAN 110 BRIGHT HOUSE 001 110 BUCKEYE COMM 110 CABLEVISION 001 110 108 CHARTER 001 110 CISCO 001 042 251 COGECO 110 COMCAST 001 110 COMSAT 110 COX DIGITAL 001 110 ENVIO 005 DIGEO 111 DIRECTOR 110 GCI 110 GENERAL INSTRUMENT 110 004 GNC 099 INSIGHT 110 JERROLD 110 004 MASSILLON 110 MEDIACOM 110 MIDCONTINENT 110 MOTOROLA 110 148 111 253 MOXI 111 086 NCTC 110 NEW WAVE 110 OAK 031 ONELINK 001 PACE 001 110 PANASONIC 044 047 PHILIPS 085 PIONEER 001 034 105 RCA 047 RCN 110 RODGERS 001 SCIENTIFIC ATLANTA 001 042 251 SEREN 001 SERVICE ELECTRIC 110 SHAW 110 SIGECOM 001 SONY 108 SPRUCER 047 STARCOM 004 SUSQUEHANNA 001 110 TIME WARNER 001 110 TORX 004 UNITED CABLE 004 VERIZON 110 VIDEOTRON 001 VISTA III MEDIA 110 WAVE BROADBAND 110 WEHCO VIDEO 110 WEGENER 250 WIDE OPEN WEST 001 099 SATELLITE ReceiversCABLEVISION 148 DIRECTV 173 DISH 122 ECHOSTAR 122 EXPRESSVU 122 GE 116 GENERAL INSTRUMENT 148 GOI 122 HITACHI 114 HTS 122 HUGHES 114 JVC 122 LG 170 MITSUBISHI 114 NEXT LEVEL 148 PANASONIC 142 PHILIPS 156 114 PROSCAN 116 RADIOSHACK 148 RCA 116 SAMSUNG 163 175 SONY 115 STAR CHOICE 148 TOSHIBA 114 VOOM 148 TESEVISIONSBEX 025 ADMIRAL 072 251 333 ADVENT 247 ADVENTURA 002 AIKO 103 ALERON 028 AKAI 116 146 248 281 404 405 A MARK 112 AMERICA ACTION 043 AMPRO 073 AMSTRAD 052 ANAM 043 054 056 080 112 AOC 116 363 112 058 APEX DIGITAL 006 591 ASTAR 477 AUDIOVOX 076 BELCOR 116 BELL&HOWELL 333 072 BRADFORD 043 BROCKWOOD 116 CANDLE 116 002 003 363 CAPEHART 058 CELEBRITY 001 CENTURION 116 CETRONIC 043 CITIZEN 116 002 003 363 043 258 103 CLARION 043 CLASSIC 043 CLP CLASSIC 333 COLORTYME 116 CONCIERGE 073 CONCERTO 363 CONTEC 043 050 051 CORNEA 116 CRAIG 043 054 CROSLEY 164 CROWN 043 CURTIS MATHES 116 258 363 CXC 043 DAEWOO 363 043 076 103 DAYTRON 363 DELL 320 164 363 DIGITAL LIFESTYLE 528 DIGITAL PROJECTION 570 DIGITRON 258 DIMENSIA 333 DUKANE 011 025 DUMONT 116 073 DURABRAND 096 DWIN 257 DYNASTY 043 DYNEX 399 EIKI 187 ELECTROBAND 001 ELECTROHOME 024 076 ELECTROGRAPH 466 ELEKTRA 072 ELEMENT 494 EMERSON 028 048 043 155 005 116 363 047 050 051 076 096 153 ENVISION 116 ESA 387 FISHER 007 057 FUJITSU 246 198 FUNAI 028 043 052 FUTURETECH 043 GATEWAY 242 268 GE 073 116 008 009 034 056 074 155 333 363 GEM 391 GIBRALTER 116 073 GOLDSTAR 113 116 102 004 106 112 GRUNPY 028 043 HAIER 363 HALL MARK 363 HANNSPREE 381 HARLEY DAVIDSON 028 HARSPER 466 HARVARD 043 HAVERMY 081 HELLO KITTY 076 HIMITSU 043 HISENSE 419 HITACHI 011 166 363 009 010 012 023 158 072 HP 378 316 327 ILO 472 399 INFINITY 164 INFOCUS 333 330 INTEQ 073 INSIGNIA 350 399 400 052 164 403 JANEIL 002 JBL 164 JCB 001 JCPENNEY 363 024 116 008 009 030 065 258 333 JENSEN 013 JVC 038 034 001 083 199 210 KAWASHO 116 001 KEC 043 KENWOOD 116 001 KLEGG 466 KLOSS 002 059 KREISEN 530 KTV 043 116 KURAZAI 072 LG 363 113 116 102 363 106 112 LODGENET 072 LOEWE 164 LOGIK 072 LUXMAN 363 LXI 166 007 138 052 251 333 164 MAGNAVOX 164 059 116 003 060 061 363 022 333 094 226 390 MAJESTIC 333 072 MARANTZ 116 164 MATSUI 164 MATSUSHITA 080 MAXENT 242 MEGATRON 116 011 MEMOREX 007 072 363 MGA 116 363 024 028 MIDLAND 333 073 MINTEK 282 362 MINUTZ 008 MITSUBISHI 124 109 024 363 028 040 146 MONTGOMERY WARD 333 072 MOTOROLA 081 MTC 116 363 258 MULTITECH 043 NAD 138 025 NEC 272 132 134 116 040 024 056 019 262 NET TV 242 NIKEI 043 NIKKO 116 NIKO 527 NORCENT 390 NTC 103 NUVISION 351 OLEVIA 432 ONKING 043 ONWA 043 OPTIMUS 025 OPTONICA 019 251 OPTOMA 265 ORION 096 PANASONIC 080 034 056 164 208 583 REVOLUTION HD 466 PHILCO 116 003 059 060 164 363 024 056 PHILIPS 164 005 093 038 116 003 363 059 206 431 594 PILOT 116 PIONEER 234 025 018 023 116 272 393 POLAROID 388 PORTLAND 363 PRIMA 164 PRISM 034 PROSCAN 333 PROTON 363 112 058 171 172 PROTRON 392 398 PROVIEW 494 PROX 572 PULSAR 116 073 QUASAR 034 056 RADIO SHACK 019 363 043 RCA 333 065 116 363 024 056 152 023 074 REALISTIC 007 019 043 047 RUNCO 072 182 073 395 416 SAMPO 116 058 363 242 SAMSUNG 258 050 089 105 363 333 228 229 SAMSUX 116 SANSEI 076 SANSUI 096 SANYO 166 007 020 053 057 082 187 SCEPTRE 276 SCOTCH 116 SCOTT 028 043 363 048 SEARS 138 030 363 007 028 057 094 333 082 166 SELECO 205 011 SHARP 251 019 014 028 029 363 022 175 SHENG CHIA 081 SHOGUN 116 SIGNATURE 072 SIMPSON 003 SONY 001 SOUNDESIGN 028 363 003 043 SOVA 363 SOYO 528 SPECTRICON 112 SPECTRONIQ 392 398 SQUAREVIEW 052 STARLITE 043 SSS 363 043 SUPRA 116 | SUPRE MACY 002 SUPREME 001 SVA 328 SYLVANIA 116 003 052 059 060 164 333 593 SYNTAX OLEVIA 333 363 432 TANDY 251 TATUNG 056 TECHNICS 034 080 TECHNOL ACE 028 TECHWOOD 363 TEKNIKA 002 003 363 024 028 043 072 258 TELERENT 072 TERA 172 TMK 363 TNCI 073 TOSHIBA 138 030 007 040 258 325 TRUTECH 529 TVS 096 UNIVERSAL 008 009 VICTOR 038 VIDEO CONCEPTS 146 VIDIKRON 174 164 188 VIDTECH 363 VIEWSONIC 242 389 VIKING 002 VIORE 472 592 VISCO 494 VITO 363 VIZIO 386 387 WARDS 363 008 009 019 028 060 061 072 074 164 034 WAYCON 015 WESTINGHOUSE 076 276 YAMAHA 116 363 YORK 363 YUPITERU 043 ZENITH 363 073 072 095 103 ZONDA 112 DVD/DVR/VCRAKAI 281 ALLEGRO 091 APEX DIGITAL 111 115 BLAUPUNKT 111 BROKSONIC 130 CINEVISION 091 COBY 260 CYBERHOME 271 DENON 138 173 DURABRAND 091 DVD 2000 017 EMERSON 091 143 ENTERPRISE 074 FISHER 147 FUNAI 143 GOLDSTAR 091 GO VIDEO 137 091 220 221 222 GREENHILL 111 HARMAN KARDON 084 140 HITACHI 101 HITEKER 087 ILO 268 INITIAL 111 INSIGNIA 143 JBL 084 JVC 012 KENWOOD 151 KISS 279 KLH 135 KRELL 104 LITEON 264 265 LEXICON 148 LG 091 057 MAGNAVOX 001 096 143 282 MARANTZ 001 095 MALATA 267 MERIDIAN 153 MINTEK 111 282 MITSUBISHI 017 MYRYAD 102 134 NAD 088 NAKAMICHI 103 NESA 111 ONKYO 076 035 180 338 OPTIMUS 023 OPPO 266 341 ORION 130 PANASONIC 138 144 150 285 PHILIPS 001 095 344 PHILIPS MAGNAVOX 035 001 PIONEER 023 131 POLAROID 233 POLK AUDIO 035 001 RIO 091 RJTECH 269 SAMSUNG 165 170 137 159 275 SANSUI 154 SANYO 147 SEARS 130 SENSORY SCIENCE 222 SHARP 094 SHINSONIC 033 SONIC BLUE 091 SONY 002 033 145 191 286 343 SYLVANIA 143 SYMPHONIC 143 TATUNG 102 TEAC 023 270 TECHNICS 138 TECHWOOD 088 THETA DIGITAL 023 TOSHIBA 035 130 141 164 188 273 URBAN CONCEPTS 035 VENTURER 149 YAMAHA 138 089 001 197 ZENITH 057 091 DVD Recorders GO VIDEO 220 221 222 CYBERHOME 271 ILO 268 KISS 279 LITEON 265 PANASONIC 138 SENSORY SCIENCE 222 SONY 191 TOSHIBA 188 TV/DVD Combos AKAI 281 FUNAI 143 INSIGNIA 143 MAGNAVOX 282 MINTEK 282 SAMSUNG 165 SYLVANIA 143 SYMPHONIC 143 TOSHIBA 130 TV/DVD/VCR Combos MAGNAVOX 143 PANASONIC 144 SYLVANIA 143 TOSHIBA 164 DVD/VCR Combos GO VIDEO 137 PANASONIC 150 PHILIPS 001 (VCR Functions for VCR 067) SAMSUNG 137 159 SANSUI 154 SONY 145 TOSHIBA 141 ZENITH 091 AUDIOADCOM 082 092 225 161 269 356 AIWA 170 018 104 202 203 213 211 188 AKAI 189 ANTHEM 335 337 ARCAM 141 077 ATLANTIC TECHNOLOGY 342 B & K 096 097 BOSE 070 170 224 347 409 460 BOSTON ACOUSTICS 447 CARVER 006 028 201 214 226 185 013 077 284 CITATION 148 CLARION 026 DENON 001 109 215 230 234 330 ELAN 290 ENLIGHTENED AUDIO 099 098 ESCIENT 451 FISHER 214 066 FLEXTRONICS 378 FOSGATE AUDIONICS 148 342 HARMAN KARDON 148 233 077 154 118 318 HITACHI 020 INSIGNIA 589 INTEGRA 275 017 046 108 080 209 JAMO 398 JCPENNEY 216 JVC 163 191 114 279 291 KENWOOD 026 066 145 192 005 280 374 KLH 331 KOSS 216 573 KRELL 384 LEXICON 120 235 236 237 357 360 LINN 124 377 LUXMAN 009 139 165 115 004 MAGNAVOX 086 164 152 208 MARANTZ 006 028 031 040 063 185 186 265 289 492 MCINTOSH 238 286 MERIDIAN 100 012 013 MITSUBISHI 242 204 MONDIAL 157 158 042 043 081 112 MYRYAD 077 NAD 186 113 NAKAMICHI 040 244 245 172 183 287 NEC 176 NIRO 343 NILES 403 ONKYO 275 017 046 108 080 209 OPTIMUS 026 041 OUTLAW 342 PANASONIC 032 195 219 177 292 PARASOUND 129 130 132 261 294 295 333 334 PHILIPS 249 250 063 805 PIONEER 014 039 044 069 168 116 035 078 198 480 PROCEED 144 268 RCA 010 048 117 156 067 288 REALISTIC 019 095 ROTEL 083 085 SAMSUNG 016 804 SANSUI 040 048 110 063 065 228 SANYO 214 SCOTT 019 SHARP 026 094 175 SHERWOOD 024 102 106 447 SONY 002 018 247 248 166 101 184 218 271 SOUNDESIGN 036 SUNFIRE 344 345 066 TEAC 005 019 049 040 212 217 TECHNICS 122 176 193 219 178 177 200 257 262 THETA DIGITAL 136 TOSHIBA 060 087 198 278 YAMAHA 026 253 169 067 173 205 264 232 089 274 ZENITH 143 210 SATELLITE Radios DELPHI 515 POLKAUDIO 515 SIRIUS 555 XM SATELLITE RADIO 515 AUXiPod Controls APPLE / iPod 901 912 BOSE 909 GRIFFIN 471 KENSINGTON 906 TEN TECHNOLOGY 901 MEDIA PC Controls DELL 001 GATEWAY 001 HP 001 KEYSPAN 797 SONY 001 TOSHIBA 001 WINBOOK 001 GAMING SYSTEM Controls MICROSOFT / XBOX 908 607 SONY / PS2 914 URC-URC-A6 AUX (D2A) ARTEC 586 CASTI 587 CRAIG 588 GRIDLINK 592 INET ACCESS 589 INSIGNIA 567 LASONIC 592 MAGNAVOX 584 RCA 585 SANSONIC 592 TIVAX 589 590 ZENITH 567 ZINWELL 591 593 LIGHTSCOLORADO VNET 311 312 313 314 315 316 317 318 CYRON 421 LEVITON 321 LIGHTOLIER CONTROLS 307 LITE-TOUCH 708 757 LUTRON 001 158 159 306 308 309 340 341 RAKO 301 302 303 304 305 WATT STOPPER 319 320 XANTECH 688 689 X-10 183 257 |
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HISENSE TF2906DU-A – H3498 - CHANGHONG CH-16 - SCHEMATIC DIAGRAM - UOC CHASSIS
Using ICs - HEF4094 – KA5Q1265RF Power Switching – HS817B Opto-coupler – TDA938x – TDA7495S – TDA8351
Click on Circuit to Magnify
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TCL TV [M113 Super One Chip Chassis] - Using TMP A8809 - M113 CPU] - Models 2500PF - 2501PF - 2506PF - 2900PF - 2901PF - 2905PF - 2906PF - 2907PF - SERVCE MODE
- After power on, press “volume ▼”on front panel waiting for the scale to“0”
- Then press key “DISPLAY” on the remote handset, there will be “D” displayed on the screen shows it enters in factory mode.
- Now the short-cut keys on the factory adjustment remote handset can be remark customer mode remote handset also can be used it can be used in repairing
- Adjustment press key “STANDBY” to exit factory mode but system setting data”6”should be kept the state before storing do not to change it.
Changed factory data and restored in memory.
- For factory production you can set “BIT-0”to“1”in menu “OPT”, so every time you press the remote handset can enter “D-MODE” directly after open the sets in AC or DC power sets on, also it can be activated by key “D-MODE” on the remote handset but do not forget to set“BIT-0”to“0”in menu “OPT” and power them on in AC or DC mode one time in the end of production so the sets will disable factory mode.
The key “I²C”on the remote handset can interrupt the communication CPU with I2C bus, usually this interrupt state can be used in automatic white balance adjustment and auto geometry distortion adjustment.
Vertical Output Section
TMPA8809 outputs vertical saw-tooth wave from pin 16.It come to pin1 of TDA8172 with DC coupling, and is amplified by inner difference amplifier. Pin7 of TDA8172 is the same phase input terminal. R302 and R303 are DC offset resistances. C304 is a filter capacitor. In application to M113, pin7 of TDA8172 is fixed as the DC amplify ref terminal. The amplified saw tooth-wave comes out from pin5 and make the deflect coil to generate the deflect current. R304 and C305 filtrate the inductive interference from the horizontal deflect coil. R310 and C309 are usedto eliminate spurious oscillation generated by the deflect coil and distributed capacitance resonance. C308, R309, C307 and accessory circuit are in charge of draw AC saw tooth wave out at the deflect coil terminal connected with R303A, and feedback to the input terminal of TDA8172 (pin1) to correct the linearity of horizontal scan. C301 is a high frequency decoupling capacitor.
D301 and C302 make up of a voltage pump up circuit. TDA8172 output a vertical kickback impulse from pin6 to locate the OSD characters.
Horizontal Output And FBT Section
The processor outputs horizontal drive impulse from pin 13(H-OUT). The drive impulse is done with voltage division by R201 and R401, and then comes to the base of the drive triode (Q401). C401 is used to eliminate the noise in the H drive impulse. T401 is a horizontal drive transformer. Q411 is a horizontal output triode with a damper inside.L412 is connected with the emitter of the horizontal output diode to eliminate the radiation and to improve the distortions at the cross of vertical and horizontal white lines. C412 and C413 are retrace capacitors and C414 is an s-correct capacitor. L413 is horizontal linear inductors. R441 is used to eliminate the parasitic oscillation caused by horizontal linear inductors. C421, R421 and D421 are used to correct the M-distortion in horizontal direction. The deflect coil and the horizontal output triode have some resistance R while they are ducting. The resistance R will cause the non-linear distortion, which means that the right direction scanning speed of the electron beam becomes slower, and the right of the raster is compressed to generate distortion. We use a horizontal linear adjuster to compensate this kind of distortion. We use L414 as the H linear adjuster in horizontal scanning section of M113 chassis. R419, which is parallel connected with L414, is a despiking resistance for preventing the oscillation by compensating inductor and the stray capacitance. The linear adjuster is a transductor coil with a magnetic core inside. If the current, which pass the linear adjuster, coil, increase to a certain value, the magnetic core becomes saturated to decrease the inductance of the linear adjustment inductor. If the +B is steady, the increase speed of Iy is faster to compensate the reducing of deflecting current by the resistance R mention above. We can adjust the magnetic core to change the inductance of the linear compensate inductor to adjust the H linearity. The EW-correct signal sent frompin28 of TMPA8809, amplified withQ412,Q413 and Q414,to adjust horizontal output circuit.
The EHT generation circuit
The FBT supply the anode high voltage, focus voltage and screen voltage for M113 chassis. D441and C441 are in charge of regulating the primary impulse of the transformer to output a voltage of 200V for the video amplifiers. The ( 4 ) ~ ( 7 ) coils of the FBT supply the heater with power. To limit the beam current in a safe range, we add a ABL(auto brightness limit) circuit in M113 chassis. When the beam current is higher than normal, Q451, which is an emitter follower strength conductivity, the emitter gets a lower negative voltage, so the collector of it follows a lower voltage, then gain of system brightness decreases, brightness decrease and beam current decreases.
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TCL TV [M113 Super One Chip Chassis] - Using TMP A8809 - M113 CPU] - Models 2500PF - 2501PF - 2506PF - 2900PF - 2901PF - 2905PF - 2906PF - 2907PF - REPAIR FLOW CHART
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