Read Sony SAVA-27 Service Manual online
– 3 –
TEST MODE
MODE ALL FLUORESCENT INDICATOR TUBES
LIGHT
LIGHT
When the AC plug is inserted to the power outlet with pressing the
MASTER VOL + button, the all fluorescent indicator tubes light.
MASTER VOL + button, the all fluorescent indicator tubes light.
KEY CHECK, LED LIGHTING MODE
1. Pull out the AC plug from the power outlet and turn the power
OFF.
2. Connect the lead wire to TP3 on the KEY board.
3. Insert the AC plug to the power outlet and set to STANDBY
3. Insert the AC plug to the power outlet and set to STANDBY
mode.
4. Let the lead wire connected in step 1 contact to the ground.
5. All fluorescent indicator tubes light, and enter the key check
5. All fluorescent indicator tubes light, and enter the key check
mode.
6. Pressing any buttons, the number of button will be displayed on
the fluorescent indicator tube.
7. After all buttons are pressed, it will be in the STANDBY mode.
Note:
1. The LED (D505)lights while pressing each button.
The LED lights in red when ever number of buttons are pressed,
and it lights in green when odd number of buttons are pressed.
and it lights in green when odd number of buttons are pressed.
2. The LED lights even when the pressed button is pressed again.
• Parts Location
[KEY BOARD] — Conductor side —
CN552
IC503
S506
R557
TP3
Button
POWER
MASTER VOL–
MASTER VOL +
INPUT
SURROUND
CTR MODE
S.WOOFER
MASTER VOL–
MASTER VOL +
INPUT
SURROUND
CTR MODE
S.WOOFER
Button Number
2
3
4
5
6
7
8
3
4
5
6
7
8
LED Color
Red
Green
Red
Green
Red
Green
Red
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