Sony HCD-FLX5D Sony FLX7D amp board schematic, checking, and more

Disc Type check

Disc Type Auto Check
1) Press the [1] key on the remote commander to display the Disc Type Auto Check screen.
2) Insert a disc and press the [ENTER] key on the remote commander.
3) It judges the type of inserted disc automatically and displays the disc type and so on as below.

Disc Type : CD, DVD or Hybrid (SACD)
Layer : SINGLE, DUAL or HYBRID
Mirr Time : Mirror time of between disc surface and record surface when disc type judgment. (Hexadecimal number)
Mirr Count : The number of times which mirror counts between disc surface and record surface when disc type judging.
FZC Count : The number of times which focus zero cross points of each layer when lens down.
PI Reference: The average of PI reference voltage. (hexadecimal number)
PI Peak : PI peak level voltage. It performs only when disc type judgment is successful. (hexadecimal number)
Disc Type DVD
It sets up so that it may judge as a disc type of specification of the disc with which the set was inserted.
[1]: DVD single layer disc (12 cm)
[2]: DVD dual layer disc (0 layer, 12 cm)
[3]: DVD dual layer disc (1 layer, 12 cm)
[4]: DVD-RW disc (12 cm)
[5]: DVD single layer disc (8 cm)
[6]: DVD dual layer disc (0 layer, 8 cm)
[7]: DVD dual layer disc (1 layer, 8 cm)
[8]: DVD-RW disc (8 cm)

Disc Type CD
It sets up so that it may judge as a disc type of specification of the disc with which the set was inserted.
[1]: CD disc (normal speed, 12 cm)
[2]: CD disc (double speed, 12 cm)
[3]: CD disc (normal speed, 8 cm)
[4]: CD disc (double speed, 8 cm)
[5]: CD-RW disc (normal speed, 12 cm)
[6]: CD-RW disc (double speed, 12 cm)
[7]: CD-RW disc (normal speed, 8 cm)
[8]: CD-RW disc (double speed, 8 cm)

Disc Type Hybrid
It sets up so that it may judge as a disc type of specification of the disc with which the set was inserted.
[1]: SACD Hybrid disc (SACD layer, 12 cm)
[2]: SACD Hybrid disc (CD layer, normal speed, 12 cm)
[3]: SACD Hybrid disc (CD layer, double speed, 12 cm)
[4]: SACD Hybrid disc (SACD layer, 8 cm)
[5]: SACD Hybrid disc (CD layer, normal speed, 8 cm)
[6]: SACD Hybrid disc (CD layer, double speed, 8 cm)

Servo Control
Note: Be sure to perform the disc type setup before performing this item.

On this screen, the servo on/off control necessary for replay is executed. Normally, turn on each servo from 1 sequentially and when CLVA is turned on, the usual trace mode becomes active. In the trace mode, DVD sector address or CD time code is displayed.
This is not displayed where the spindle is not locked.
The spindle could run overriding the control if the spindle system is faulty or RF is not present. In such a case, do not operate CLVA.
[1] LD : Turn on/off the laser.
[2] Focus : Search the focus and turn on the focus.
[3] SPDL : Turn on/off the spindle.
[4] CLVA : Turn on/off normal servo of spindle servo.
[5] Trk. : Turn on/off the tracking servo.
[6] Sled : Turn on/off the sled servo.
[7] FCS. Srch : Turn on/off the focus search.
[8] FCS. OppL : Turn on/off the focus search to another (oposite) layer of designated layer in Disc
Type setting. (dual layer disc only) [10/0] : All servo off.
(right cursor) : Move the sled forward.
(left cursor) : Move the sled reverse.
(up cursor) : Reset the sled.
(down cursor) : Limit in the sled.

Track/Layer Jump

On this screen, track jump, etc. can be performed. Only for the DVD dual layer disc, the focus jump and layer jump are displayed in the right field
[1] 1Tj FWD : 1 track jump forward.
[2] 1Tj REV : 1 track jump reverse.
[3] 500Tj FWD : 500 track jump (fine search)forward.
[4] 500Tj REV : 500 track jump (fine search) reverse.
[5] 10kTj FWD : 10k track jump (direct search) forward.
[6] 10kTj REV : 10k track jump (direct search) reverse.
[7] 20kTj FWD : 20k track jump (direct search) forward.
[8] 20kTj REV : 20k track jump (direct search) reverse.
LjL0 t L1 : Layer jamp L0 t L1
LjL1 t L0 : Layer jamp L1 t L0
FjL0 t L1 : Focus jamp L0 t L1
FjL1 t L0 : Focus jamp L1 t L0
[10/0] : All servo off.

Non EEPROM Write Adjust

On this screen, each item can be adjusted automatically. Select the desired number [1] to [10/0] from the remote commander. This value is not stored in the EEPROM.
[1] Focus Offset : Adjusts focus offset.
[2] Focus Gain : Adjusts focus gain.
[3] TRK. Offset : Adjusts tracking offset of the RF amp (IC001) side.
[4] TRK. Offset : Adjusts tracking offset of the DSP (IC401) side.
[5] TRK. Gain : Adjusts track gain.
[6] EQ Boost : Adjusts amount of boost of equalizer.
[10/0] : All servo off.

EEPROM Write Adjust

On this screen, each item can be adjusted automatically. Select the desired number [1] to [10/0] from the remote commander, and selected item is adjusted automatically. Thus value is stored in the EEPROM.
[1] Focus Offset : Adjusts focus offset.
[2] Focus Gain : Adjusts focus gain.
[3] TRK. Offset : Adjusts tracking offset of the RF amp (IC001) side.
[5] TRK. Gain : Adjusts track gain.
[6] EQ Boost : Adjusts amount of boost of equalizer.
[10/0] : All servo off.

Memory Check
Display images are shown as follows, and all two screens are able to switch by the key (UP) or key (DW)

On this screen, current servo adjusted data stored in the EEPROM are displayed. The adjusted data are initialized by pressing the [CLEAR] key, but be careful that they are not recoverable after initialization.
Before clearing the adjusted data, make a note of the set data.

Mark Check

On this screen, measure the PSP AMP value and Disc Check Memory

On this screen, measure the mirror time of chucked disc, and write to the EEPROM

Error Rate Display

On this screen, measure and display the error rate.
UC : Incorrect value
CR : Correct value

SACD Water PSN value of SACD water mark.

MECHA AGING
On the Test Mode Menu screen, selecting [3] executes the aging of the mechanism deck.

Set over-40-min. CDs in Disc 1 to 5.
2) On the Aging Test MENU screen, press the [1] key on the remote commander to display the Open/Close Test screen.
3) Insert discs and press the [ENTER] key on the remote commander.
4) Is starts the aging.
During aging, the disc number, operating status and repeat cycle are displayed. Aging can be aborted at any time by pressing the [RETURN] key. After the operation is stopped, press the [RETURN] key aging to return to the Aging Test MENU.
EMERGENCY HISTORY
On the Test Mode Menu screen, selecting [4] displays the information such as servo emergency history.
The history information from last 1 up to 10 can be scrolled with the O key or o key. Also, specific information can be displayed by directly entering that number with ten keys.

xxxxhxxm: The laser on total hours. Data below minutes are omitted.
a. : Error number.
bb : Error code.
xx : Not used.

Clearing History Information
Clearing laser hours:
Press the [DVD DISPLAY] and [CLEAR] keys in this order.
Then both CD and DVD data are cleared.
Clearing emergency history:
Press the [DVD TOP MENU] and [CLEAR] keys in this order.
Initializing EEPROM data:
Press [DVD MENU] and [CLEAR] keys in this order.
The data have been initialized when “EEPROM Initialize Finished” message is displayed, press the [RETURN] key to return to the EMG. History screen.

Code list of Emergency History
10: Communication to RF AMP (IC001) failed.
11: Each servo for focus, tracking, and spindle is unlocked.
12: Check sum error of EEPROM (IC903).
14: Communication to servo DSP (IC509) failed, or servo DSP (IC509) is faulty.
15: Communication to DVD decoder (IC701) failed, or DVD decoder (IC701) is faulty.
16: Communication to DSD decoder (IC801) failed, or DSD decoder (IC801) is faulty.
20: Initialization of sled servo failed. It is not placed in the initial position.
23: Sled servo operation error.
24: Made a request to move the sled servo to wrong position.
30: Tracking balance adjustment error.
31: Tracking gain adjustment error.
33: Focus bias adjustment error.
34: Focus gain adjustment error.
35: Equalizer adjustment error.
40: Focus servo does not operate.
41: With a DVD dual layer disc, focus jump failed.
50: CLV (spindle) servo does not operate.
51: Spindle does not stop.
60: Made a request to seek nonexistent address.
61: Seek error of retry more than regulated times.
70: Control data could not be read.
80: Disc reading failed.

MECHA ERROR HISTORY
On the Test Mode Menu screen, selecting [5] displays the information of mechanism deck error history.
The history information from last 1 up to 8 can be scrolled with the UP key or DN key. Also, specific information can be displayed by directly entering that number with ten keys.

aa : The error in the midst of initializing the mechanism deck.
bb : The error in the midst of loading operation.
cc : The error in the midst of up/down the stocker.
dd : The error in the midst of switching the mechanism deck mode.
xx : Not used.

VERSION INFORMATION
On the Test Mode Menu screen, selecting [6] displays the ROM version and region code.
The parenthesized hexadecimal number in version field is checksum value of ROM.
Version Information
IF con. Ver.x. xxx
SYScon. Ver.x. xx (xxxx)
Model DHC-FLxx
Region 0x
Config xxxxxxxx
Front End Ver.x.xx
Exit: RETURN
IF con. : The version of system controller (IC101).
SYScon. : The version of DVD system processor (IC206).
Front End: The version of mechanism controller (IC901).
7. VIDEO LEVEL ADJUSTMENT
On the Test Mode Menu screen, selecting [7] displays color bars
for video level adjustment. During display of color bars, OSD disappears but the menu screen will be restored if pressing the [RETURN] key

RF board schematic

Front Rear amplifier board schematic

Centre amplifier board schematic