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PANASONIC TC-14A04 - TC-20A04 - TC-20B04 - COLOR TV - SCHEMATIC [CIRCUIT DIAGRAM]

February 4, 2014, 2:29 am
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SCHEMATIC               CLICK ON THE PICTURES TO ZOOM IN

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NO POWER [SMPS] TROUBLESHOOTING - LG47LM6200 - CONNECTOR VOLTAGES

February 4, 2014, 5:30 am
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POWER ERROR_NO POWER
Check front display LED
Check Power Input Voltage & Standby 5V
For ’10 models, there is no voltage out for st-by purpose. When st-by, only 3.5V is normally on.
CLICK ON THE PICTURES TO MAGNIFY 
Checking method when Power is ON
Check Power ON pin is High.
POWER OFF MODE CHECKING
1. Press the IN-START button of the remote controller for adjustment.
2. Check the entry into adjustment item 3

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NO SOUND - PICTURE OK - TROUBLESHOOTING - LG47LM6200 - LCD TV

February 4, 2014, 7:41 am
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CHECKING METHOD IN MENU; WHEN THERE IS NO SOUND
1. Press the MENU button on the remote controller
2. Select the AUDIO function of the Menu
3. Select TV Speaker from Off to On
CLICK ON THE PICTURES TO ZOOM IN
Voltage and speaker checking method when there is no audio.
1. Check the contact condition of or24V connector of Main Board
2. Measure the 24V input voltage supplied from Power Board.  (If there is no input voltage, remove and check the connector)
3. Connect the tester RX1 to the speaker terminal and if you hear the “Chik Chik” sound when you touch the GND and output terminal, the speaker is normal.
Remote controller operation checking method
1, 2. Check IR cable condition between IR & Main board.
3. Check the st-by 3.3V on the terminal 6.
4. When checking the Pre-Amp when the power is in ON condition, it is normal when the Analog Tester needle moves slowly, and defective when it does not move at all.

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MARK AUDIO - ATTACK - MK2400 - AMPLIFIER - SCHEMATIC (CIRCUIT DIAGRAM)

February 4, 2014, 9:35 am
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CLICK ON THE SCHEMATICS TO MAGNIFY 
SCHEMATIC     

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AMC DAC-8 Digital to Analogue Converter [DAC-8 MD90-1284] - SCHEMATIC [Circuit Diagram]

February 4, 2014, 7:26 pm
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I/O FUNCTION PCB LAYOUT MD90-1283
DAC PCB LAYOUT- MD90-1284
CLICK ON THE PICTURES TO MAGNIFY
SCHEMATIC

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LG BP620 BLU-RAY PLAYER - REGION CODE - UNLOCK - PASSWORD RESET

February 4, 2014, 8:17 pm
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REGION CODE
This unit has a regional code printed on the rear of the unit. 
This unit can play only BD-ROM or DVD discs labeled same as the rear of the unit or “ALL”.
Area Code
Enter the code of the area whose standards were used to rate the DVD video disc, based on the list.
If you forget your password
If you forget your password, you can clear it using the following steps:
1.  Remove any disc that might be in the player.
2.  Select [Password] option in the [Setup] menu.
3. Use Number buttons to enter “210499”. The password is cleared.
[If you make a mistake before pressing ENTER, press CLEAR. Then input the correct password.]
DVD Rating
Blocks playback of rated DVD based on their content. (Not all discs are rated.)
[Rating 1-8]
Rating one (1) has the most restrictions and rating eight (8) is the least restrictive.
[Unlock]
If you select [Unlock], parental control is not active and the disc plays in full.
Blu-ray Disc Rating
Set an age limit of BD-ROM play. Use number buttons to input an age limit for BD-ROM viewing.
[255] All BD-ROM can be played.
[0-254] Prohibits play of BD-ROM with corresponding ratings recorded on them.

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HARMAN KARDON - HK-3370 _ HK-3470 - Stereo Amplifier - POWER AMP-SCHEMATIC]

February 5, 2014, 8:24 am
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POWER AMPLIFIER & PRE-AMPLIFIER _ SCHEMATIC
CLICK ON THE Pictures TO ZOOM IN

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JBL CS-60.4 - 4CHANNEL POWER AMPLIFIER - SCHEMATIC [CIRCUIT DIAGRAM]

February 6, 2014, 6:51 am
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SCHEMATIC
CLICK ON THE SCHEMATICS TO ZOOM IN 
The CS subwoofer amplifier is a single-channel amplifier. There are two sets of terminals to make it easy to connect multiple woofers. Either set of (+/–) terminals may be used when connecting woofers.
Two application diagrams to help plan your sub-woofer system installation.

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SHARP DV-500D - DV-550 - DV-550W - DV-550X DVD VIDEO PLAYER - POWER SUPPLY SCHEMATIC & TROUBLESHOOTING

February 6, 2014, 9:13 am
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SMPS SCHEMATIC & TROUBLESHOOTING
CLICK ON THE PICTURES TO MAGNIFY

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H-BUSTER - HBTV-32L01HD – HBTV-42L01FD - SERVICE MODE - SMPS (Power Supply) Schematic [CIRCUIT DIAGRAM]

February 6, 2014, 10:19 pm
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SMPS SCHEMATICS [HBTV-42]
HBTV-32
Click on the pictures to Zoom In
SERVICE MODE
How to accessthe service menu with a user remote control: 
Enter: MENU-8-8-9-3  by remote control. [Key presses should be as fast as  possible.]
TV information will be as shown below.
In the last lineof themenu of services, dispay board versionand model ofpanelLCD, 
For example:"L_MST6M36JS_AU32VP_BX"
How to exitservicemenu:
Simplypress theEXITbutton on the remoteuserordisconnect the equipment.
Measurements andAdjustments:
NOTTO BEPERFORMEDHÁAJUSTESTHISMODEL. IT IS RECOMMENDEDNOCHANGENODEFAULT
When performinga software upgrade, swap memoryEEPROM ofthe deviceshowunstable do the procedure below.
Pressthe UP/DOWNbuttons andselect
"Init EEPROM", then press the ">". Demoraráalgunsthe 2ndbutton toexecution.
NOTE: After the"reset", andreligueodisconnectdevice.

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SAMSUNG LN40B550K1H - LN52B550K1H - HOW TO REMOVE BACK COVER

February 8, 2014, 7:38 pm
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DISASSEMBLE 
Disconnect the LCD TV from the power source before disassembly.
Follow these directions carefully; never use metal instruments to pry apart the cabinet.
Place the TV face down on cushioned table.  Remove 4 screws from the stand.  Remove stand.
Remove the 14 screws of rear-cover.
Lift up the rear-cover.
Remove the 4 screws of the main board.
Remove the 5 screws of the IP board. (40”)
Remove the 7 screws of the IP board. (52”)
Remove the 2 screws of the sub SMPS.
Remove the left and right speaker.
Remove the 6 screws of bottom bracket stand link.
Remove 2 screws.

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NO POWER - TROUBLESHOOTING - SAMSUNG LN40B550K - LN52B550K - LCD TV

February 9, 2014, 12:23 am
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TROUBLESHOOTING
Check the various cable connections first.
Check to see if there is a burnt or damaged cable.
Check to see if there is a disconnected or loose cable connection.
Check to see if the cables are connected according to the connection diagram.
Symptom:  The unit is dead. No led’s on the front cover light up.
Major checkpoints:  Check the following:
Check the internal cable connection status inside the unit.
Check the fuses of each part.
Check the output voltage of SMPS.

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LN40B550K _ LN52B550K - SAMSUNG LCD TV - NO VIDEO - TROUBLESHOOTING

February 9, 2014, 4:09 am
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NO VIDEO [ANALOGUE PC SIGNAL]
Symptom:  No video with PC source.
Major checkpoints:
Check your source on the TV.
Check your source content.
Check all connections.
Diagnostics
NO VIDEO [HDMI] DIGITAL SIGNAL
Diagnostics
NO VIDEO - TUNER CVBS

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NO SOUND - TROUBLESHOOTING - SAMSUNG LN52B5500K - LN40B5500K - LCD TV

February 9, 2014, 11:52 pm
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NO AUDIO - PICTURE OK
Check your audio level setting.
Check your internal mute setting.
Check your source content.
Check all connections
DIAGNOSIS CHART
CLICK ON THE PICTURES TO MAGNIFY


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PANASONIC - LN52B550K - LN40B550K - LCD TV - HOTEL MODE OPTION & ADJUSTMENTS

February 10, 2014, 6:15 am
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HOTEL MODE OPTION
   This TV is provided with interactive functionality through a set-back box (SBB/STB) connected to the TV, and with other TVs in a computer controlled system for hotels and other hospitality businesses.
  When TV is powered-up initially it sends command to identify SBB/STB, if identified TV switches to ONLINE  mode and full control is through SBB/STB. In ONLINE TV stops receiving IR(Samsung remote) commands and acts according to interface protocol.  Stand-Alone: If SBB/STB is not identified, TV should be switched to STAND-ALONE mode with restricted operation.
  When this TV (in Hotel mode) is operated with a SBB/STB, it is in one of two states ONLINE or STAND-ALONE. In the STAND-ALONE state, the TV will act as a Hotel TV, but without active communication. This is to prevent guests from trying to cheat the system by disconnecting the SBB/STB.
   To set the details for Stand-alone or interactive mode, refer to page 15(Setting the hotel option data : Stand-alone mode and Interactive mode)
 Some operations may be restricted to prevents guests from “cheating” the TV system.
 No main menu(Interactive mode) or Channel Menu, Consumer style plug & play in Main Menu(Stand-Alone mode)
Limited Volume and Panel key lock or unlock.

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SAMSUNG LN40B550K - LN52B550K - LCD TV WIRING DIAGRAM - PART NUMBERS - DETAILS

February 11, 2014, 4:27 am
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WIRING DIAGRAM
PART NUMBERS
CONNECTION DETAILS
CLICK ON THE PICTURES TO ZOOM IN

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TRANSISTORS - SUBSTITUTES - BASE CONFIGURATION

February 12, 2014, 8:40 pm
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SUBSTITUTES

   TR NO
     TYPE
                                          SUBSTITUTE
             BASE





BC328
SI-NPN
BC108, BC172,  BC183, BC208, BC383, BC518, BC584.
C.B.E
BC308
SI-NPN
BC178, BC205, BC213, BC252, BC513, BC558
C.B.E
BC340
SI-NPN
BC140, BC302.
C.B.E
BC368
SI-NPN
BC378, BC338, BC738, BC635
C.B.E
BU126
SI-NPN
BU326, BU526, BU626
POWER BASE
2SA77
GE-PNP
AF124 OR 125, AF20, AF106, AF306
E.G.B.C
2SA546A
SI-PNP
BCX60, BSS1718, 2N5322 OR 5323.
C.B.E
2SA677
SI-PNP
BC213, BC258, BC308, BC558.
E[glitch].C.B
2SA684
SI-PNP
2SA1315, 2SB764, 2SB892, 2SB1041.
C.B.E
2SA733
SI-PNP
BC212, BC257, BC307, BC557
C.B.E
2SA950
SI-PNP
BC327 OR 328, BC636, BC638, BC640
C.B.E
2SA966Y
SI-PNP
2SA1382, 2SB978, 2SB892, 2SB1312
C.B.E
2SA1013
SI-PNP
2SA1275, 2SB1212
C.B.E
2SA1015
SI-PNP
BC212, BC257, BC307, BC557
C.B.E
2SA1020
SI-PNP
2SA1382, 2SA1315, 2SB892, 2SB1312
C.B.E
2SA1026
SI-PNP
BC212, BC256, BC266, BC556
E[GLITCH].C.B
2SA1175
SI-PNP
BC212, BC256, BC266, BC556
B.C.E
2SA1266
SI-PNP
BC416, BC560, 2SA970, 2SA1136 OR 1137
E.B.C
2SA1309
SI-PNP
BC213, BC258, BC398, BC558
B.C.E
2SA1376
SI-PNP
BC423, BF436 OR 437, 2SA1370 OR 1372
C.B.E
2SA1668
SIPNP
2SA1306, 2SB1096
BCE
2SA614
SI-PNP
BD240B, 2SA913, 2SA1111, 2SA1112
POWER BASE
2SA708
SI-PNP
BC303, BCX60, 2N3634, 2N3637, 2SA606
CBE
2SA968
SI-PNP
2SA1011, 2SA1133, 2SA1112, 2SA1332
BCE
2SA1320
SI-PNP
BF423, BF436, BF437, 2SA1391, 2SA1372
CBE
2SB772
SI-PNP
BD786, MJE250, MJE254, 2SB744A
ECB
2SB774
SI-PNP
2SB894, 2SB1206, BC308, BC558
CBE
2SC634A
SI-NPN
BC167, BC182, BC237, BC547
E[Glitch]CB
2SC829
SI-NPN
BC240, BC241, BC254, BC255, BF494, BF595
CBE
2SC873
SI-NPN
BC140, BC141, BSX45, BSX47, 2N1990
CBE
2SC945
SI-NPN
BC174, BC182, BC190, BC546
BCE
2SC1026
SI-NPN
BF240, BF241, BF254, BF255, BF594, BF595
BCE
2SC1213
SI-NPN
BC337, BC338, BC635, BC637, BC639
BCE
2SC1413
SI-NPN
BU207, BU209, BU508, 2SD1099, 2SD1103
POWER BASE
2SC1413
SI-NPN
BU208, BU209, BU508, 2SC2928, 2SD954
POWER BASE
2SC1573
SI-NPN
BF420A, BF393, 2SC3468, 2SC3469, 2SC4166
BCE
2SC1670
SI-NPN
2SC2383, 2SC3238, 2SD1812
BCE
2SC1684
SI-NPN
BC168, BC183, BF238, BC548
BCE
2SC1685
SI-NPN
BC174, BC182, BC190, BC546
BCE
2SC1740S
SI-NPN
2SC1652
BCE
2SC1815
SI-NPN
BC174, BC182, BC190, BC4\546
BCE
2SC1841
SI-NPN
2SC1890A, 2SC2363, 2SC2240, 2SC2459
BCE
2SC1959Y
SI-NPN
BC337, BC338, BC635, BC636, BC639
BCE
2SC1942
SI-NPN
BU208, BU209, BU705A, 2SD819, 2SD850
POWER BASE
2SC2061
SI-NPN
2SC3228, 2SD667, 2SD1298, 2SD1812
BCE
2SC2120
SI-NPN
BC337, BC338, BC635, BC636, BC639
BCE
2SC2229
SI-NPN
BF298, BF299, BF420A, 2SC3467, 2SC3469
BCE
2SC2230A
SI-NPN
BF298, BF299, BF420A, 2SC3467, 2SC3469
BCE
2SC2236
SI-NPN
2SC3328, 2SD1014, 2SD1146, 2SD1207
BCE
2SC2240
SI-NPN
2SC2362, 2SC2389, 2SC2459, 2SC2631, 2SC2632
BCE
2SC2331
SI-NPN
BC239F, 2SC2660, 2SD760, 2SD1138
BCE
2SC2335
SI-NPN
BUT56A, 2SC2427, 2SC2739, 2SC3039
BCE
2SC2482
SI-NPN
2SC3468, 2SC4166, 2SC3805, 2SC4019
BCE
2SC2603
SI-NPN
BC167, BC182, BC237, BC547
BCE
2SC2655
SI-NPN
2SC3328, 2SC3669, 2SD1207, 2SD2177
BCE
2SC2688
SI-NPN
BF417, BF459, 2SC3417, 2SC3503
ECB
2SC2785
SI-NPN
BC174, BC182 BC190, BC546
ECB
2SC2899
SI-NPN
BD410, BUX86, BUX87, 2SC3051, 2SC3435
ECB
2SC2928
SI-NPN
BU208A, BU508A, 2SD792, 2SD954
POWER BASE
2SC3194
SI-NPN
BFR98, BFX55, BLW16, MRF225
CBE [C—BODY]
2SC3202
SI-NPN
BC337, BC338, BC635, BC637, BC639
BCE
2SC3205
SI-NPN
2SC3328, 2SD1014, 2SD1207
BCE
2SC3227
SI-NPN
2SC3939, 2SD667A, 2SD1937, 2SA1211
BCE
2SC3228
SI-NPN
2SC2383. 2SD1812
BCE
2SC3378
SI-NPN
2SC1775A, 2SC2240, 2SC2389, 2SC2459
BCE
2SC3413
SI-NPN
BC167, BC182, BC237, BC547
BCE
2SC3460
SI-NPN
BU902, BU903, 2SC3644
BCE
2SC3552
SI-NPN
BUV48B, BUV48C, BUW13A, 2SC3644
BCE
2SC3669
SI-NPN
MPS651, 2SC3328, 2SC3669, 2SC4195
ECB
2SC3679
SI-NPN
BUW11A, 2SC3153, 2SC3387, 2SC3466
BCE
2SC3807
SI-NPN
BFQ63
ECB
2SC3852
SI-NPN
2SD2092, 2SD1944, 2SD1237A, 2SD2156A
BCE

2SC3927
SI-NPN
BUV47A, BUW12A, 2SC3637
BCE
2SC3940
SI-NPN
2SC2236, 2SC3226, 2SD1207, 2SD1331
BCE
2SC3998
SI-NPN
2SC1775A, 2SC2240, 2SC2390, 2SC2549
BCE
2SC4042
SI-NPN
BF393, BF420, MPS-A42, 2SD1350
BCE
2SC4237
SI-NPN
BUV48B, BUV48C, 2SC3644, 2SC4023
BCE
2SC4581
SI-NPN
BUP22BF, BUP22CF, BUV47F1, BUV47AF1, BUW12F
BCE
2SC4793
SI-NPN
BF799, 2SC3015, 2SC3374
BCE
2SD468
SI-NPN
2SC2236, 2SC4483, 2SD1207, 2SD1331
BCE
2SD637
SI-NPN
BC174, BC182, BC190, BC546
BCE
2SD820
SI-NPN
BU508A, 2SC3025, 2SC3026, 2SD649
POWER BASE
2SD965
SI-NPN
2SC3671, 2SD1145, 2SD1244, 2SD2249
BCE
2SD1133
SI-NPN
BU208A, BU508A, BU908, 2SC2928
POWER BASE
2SD1207
SI-NPN
2SC3328, 2SC3639, 2SC4145, 2SD1146
BCE
2SD1274
SI-NPN
2SC3566, 2SC4334, 2SD772A /B
BCE
2SD1274A
SI-NPN
2SC4153, BD243F, 2SD772A/B
BCE
2SD1391
SI-NPN
BU508A, BU908, 2SC3485, 2SC3486, 2SD1496, 2SD1497
BCE
2SD1545
SI-NPN
BU508AF, 2SD1665, BU908, 2SC3485, 2SC3486
BCE
2SD1547
SI-NPN
BU508AF, 2SD1556, BU908, 2SC3486
BCE
2SD1710
SI-NPN
BU508AF, 2SC4142, 2SC4143, 2SD1655, 2SD1656
BCE
2SD1853
SI-NPN
2SD1153, 2SD1660
BCE
2SD1883
SI-NPN
BU706F,2SD1544, 2SD1654, 2SC3484
BCE
2SD1884
SI-NPN
BU508AF, 2SC4142, 2SD1545, 2SD1665
BCE
2SD1885
SI-NPN
BU508AF, 2SC4143, 2SD1546, 2SD1656
BCE
2SD1888
SI-NPN
BD651, BDT21, BDW63D, BDW73D
BCE
2SD1896
SI-NPN
BD243C, BD539C, BD543C, BD953
BCE
2SD1900
SI-NPN
2SD1790, 2SD1796, 2SD1825, 2SD1987
BCE



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HCL 19 INCH LCD MONITOR - HCM9LWAN21 - BACK LIGHT SCHEMATIC - TROUBLESHOOTING

February 12, 2014, 10:00 pm
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SCHEMATIC [BACK-LIGHT]
NO BACK-LIGHT [Troubleshooting] 
CLICK ON THE PICTURES TO MAGNIFY

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PHILIPS 29PT656A/78R - 29PT856A/78R - 34PT786A/78R - SMPS - FRAME & LINE DEFLECTION - SCHEMATIC

February 13, 2014, 6:03 am
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POWER SUPPLY [SMPS] SCHEMATIC
LINE [HORIZONTAL] DEFLECTION
FRAME [VERTICAL] DEFLECTION
CLICK ON THE SCHEMATICS TO ZOOM IN

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HISENSE TLM 1510EU - 15" TFT LCD MONITOR - EXPLODED VIEW & PARTS DETAILS

February 15, 2014, 7:58 am
$
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EXPLODED VIEWS
CLICK ON THE PICTURES TO MAGNIFY

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