SONY TR-DG500 - TR-DG600 - MULTI CHANNEL AV RECEIVER – Test modes – Factory reset – VFD display checking – Power amplifier schematic diagram – AV Receiver Repair and service

Category: AV Receiver Repair and Service

Contents of this article

Factory rest procedure
VFD Checking procedure
Command mode selection

SONY TR-DG500 - TR-DG600

TEST MODE

FACTORY PRESET MODE
All preset contents are reset to the default setting.
Procedure:
While depressing the [SPEAKERS OFF/A/B/A+B%] and the [MOVIE] buttons simultaneously, press the POWER button to turn on the main power.
The message “FACTORY” appears for a moment and the present contents are reset to the default values.

AM CHANNEL STEP 9 kHz/10 kHz SELECTION MODE (US, Canadian, E2 model only)
Either the 9 kHz step or 10 kHz step can be selected for the AM channel step.
Procedure:
Turn the [INPUT SELECTOR] control to set AM and press the POWER button to turn off the main power.
While depressing the [TUNING MODE] button, press the POWER button to turn on the main power.
Either the message “9k STEP” or “10k STEP” appears for a moment and select the desired step.
VACUUM FLUORESCENT DISPLAY TEST MODE
All fluorescent segments are tested. When this test is activated, all segments light on at the same time, then each segment lights on one after another.
Procedure:
While depressing the [TUNING MODE] and the [DISPLAY] buttons simultaneously, press the POWER button to turn on the main power.

1. ALL segments light on.

2. Turn the [INPUT SELECTOR] control, confirm display.

3. Turn the [INPUT SELECTOR] control, confirm display.

[MULTI CHANNEL DECODING] LED light on.
4. Turn the [INPUT SELECTOR] control, all segments and all LEDs light off.

SOUND FIELD CLEAR MODE
The preset sound field is cleared when this mode is activated.
Use this mode before returning the product to clients upon completion of repair.
Procedure:
While depressing the [2CH] button, press the ?/1 button to turn on the main power.
The message “S.F. CLR.” appears for a moment and initialization is performed.
SOFTWARE VERSION DISPLAY MODE
The software version is displayed.
Procedure:
While depressing the [SPEAKERS OFF/A/B/A+B] and the [DISPLAY] buttons simultaneously, press the POWER button to turn
on the main power.
The model name, destination and the software version are displayed for a moment.

KEY CHECK MODE
Button check
Procedure:
While depressing the [SPEAKERS $OFF/A/B/A+B%] and the [2CH] buttons simultaneously, press the ?/1 button to turn on the main power.
Either the message “REST 13” (STR-DG500) or “REST 14”
(STR-DG600) appears.
Every pressing of any button other than the POWER counts down the buttons. The buttons which are already counted once are not counted again. When all buttons are pressed “REST 00” appears.
AUTOBETICAL MODE (AEP, UK model only)
When this mode is used, the receiver scans the broadcasts that can be received by the tuner, and sets up the broadcasts.
Be sure to start scanning after connecting the antenna.
Procedure:
Check that the antenna is connected.
While depressing the [MEMORY/ENTER] button, press the POWER button to turn on the main power.
The message “AUTO-BETICAL SELECT” appears for a moment and the receiver starts scanning.
COMMAND MODE SELECTION MODE
The command mode (AV1 or AV2) of the remote commander can be selected.
Procedure:
While depressing the [INPUT MODE] button, press the POWER button to turn on the main power. Either the message “C.MODE.AV 1” or “C.MODE.AV 2” appears for a moment and select the desired mode.

POWER AMPLIFIER CIRCUIT DIAGRAM