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Clearing the Protector During Repairs
• OVER CURRENT : Detects overcurrent during output.
• OFF SET : Detects DC offset at the speaker terminal.
1. Clearing the OVER CURRENT protector
1 When the position of the MODE switch (S801/power board)
is set to HI-VOLTAGE :
Cut the jumper wire JW065 of the amplifier board.
2 When the position of the MODE switch (S801/power board)
is set to HI-CURRENT :
Cut the jumper wire JW066 of the amplifier board.
2. Clearing the OFF SET protector
• Cut the jumper wire JW024 of the amplifier board.
3. TEST TONE Function
1 Press the TEST TONE button (S805/amplifier board) with the
power ON. The amplifier is normal if sound is produced from
the speaker.
2 If no sound
: Problem causer by incorrect connecttion of the power supply
system or sperker system.
: The signals input by the RCA cable before the amplifier system
are abnormal.
Adjustment Location:
- POWER BOARD - (Component side)
SECTION 1
SERVICE NOTE
S801
MODE
- AMPLIFIER BOARD - (Component side)
VR201
VR101
JW024
JW065
S805
TEST TONE
JW066
3
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