Sony HCD GZR5D – Service Mode – Error codes – Power amp circuit diagram - DVD DECK RECEIVER

HCD-GZR5D is the Amplifier, DVD player, tape deck, and tuner section in MHC-GZR5D

RMS output power
120 W + 120 W (per channel at 6 Ω, 1 kHz, 10% THD)

Procedure to enter to DVD Service Mode

Press the Power button to turn on the system.

Select DVD function.
Press the Stop button and the Eject button simultaneously and then turn the [VOLUME] knob clockwise.

The message “SERVICE IN” appears on the LCD display and the Top Menu of Remocon Diagnosis Menu appears on the on-screen display on the TV. The model name, main unit’s micom version information (IF-con) and DVD firmware version information (Syscon) are displayed at the bottom of the on-screen display.

Remocon Diagnosis Menu
0. External Chip Check
1. Servo Parameter Check
2. Drive Manual Operation
3. Emergency History
4. Version Information

To execute each function, press its number by using numeric button on the remote commander.
To release from this mode, press the Power button to turn off the system.

In order to execute IOP measurement, the following standard procedures must be followed.

From the Top Menu of Remocon Diagnosis Menu, select “2.
Drive Manual Operation” by pressing the [2] button on the remote commander.

Select “3. Manual Adjustment” by pressing the [3] button on the remote commander.

Select “6. Iop:” by pressing [6] button on the remote commander.
Wait until a hexadecimal number appears in the on-screen display.

Convert data from hexadecimal to decimal by using conversion table.
Find the label on the rear of the BU (Base Unit).
The default IOP value is written in the label.

Subtract between these two values.
If the remainder is smaller than 93 (decimal), then it is OK. However if the value is higher than 93, then the BU is defective and need to be change.

Press [RETURN] button on the remote commander to return to previous menu.
Press [0] button on the remote commander to return to the Top Menu of Remocon Diagnosis Menu.
Press the Power button to turn off the system.

To check the emergency history, please follow the following procedure.

From the Top Menu of Remocon Diagnosis Menu, select “3.  Emergency History” by pressing the [3] button on the remote commander.

You can check the total time when the laser is turned on during playback of DVD and CD from the above menu. The maximum time, which can be displayed are 999h 59min.

You can check the error code of latest 10 emergency history from the above menu. To view the previous or next page of emergency history, press FF or FR button on the remote commander.

Power Amplifier Circuit Diagram & PWB

Click on the pictures to zoom in

The meaning of error codes.
01: Communication error (No reply from syscon)
02: Syscon hung up
03: Power OFF request when syscon hung up
19: Thermal shutdown
24: MoveSledHome error
25: Mechanical move error (5 Changer)
26: Mechanical move stack error
30: DC motor adjustment error
31: DPD offset adjustment error
32: TE balance adjustment error
33: TE sensor adjustment error
34: TE loop gain adjustment error
35: FE loop gain adjustment error
36: Bad jitter after adjustment
40: Focus NG
42: Focus layer jump NG
52: Open kick spindle error
51: Spindle stop error
60: Focus on error
61: Seek fail error
62: Read Q data/ID error
70: Lead in data read fail
71: TOC read time out (CD)
80: Can’t buffering
81: Unknown media type

To return to the Top Menu of Remocon Diagnosis Menu

Press [0] button on the remote commander.

To clear the Laser Hour
Press [DISPLAY] button and then press [CLEAR] button. The data for both CD and DVD data are reset.

To clear the Emergency History
Press [DVD TOP MENU] button and then press [CLEAR] button.
The error code for all emergency history would be reset.

To clear the Initialize Setup Data
Press [DVD/TUNER MENU] button and then press [CLEAR] button on the remote commander.