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2.6. Digital In 1/2
Check Power Supply Voltages for OPTICAL Input IC.
OPTICAL PCB
• JK810, JK811 : 3 pin +3.3V
• IC113 : +3.3V
Check Digital Audio Data from OPTICAL Input terminal.
MAIN PCB
• IC107 : 33 pin (for OPTICAL1), 35 pin (for OPTICAL2)
OK
OK
Check Soldering or replace for the following parts.
• CP3 : 9pin +3.3V
• IC133 : +STBY+5V / OUT : +3.3V
Check Soldering or replace for the following parts.
• JK810, JK811 1pin for the OPTICAL PCB
NG
NG
to 2.1. COMMON(signal)
2.5. Analog In 1
Check Analog Audio Signal from Analog1.
INPUT PCB
• JK2 : L, R
ALL Model Area
• C75, C82 : (L/R)
U / F / K only
• IC2 : 4, 7 pin (L/R)
5 pin : AIN_CNT1 [H]
Check the DIR input.
• IC107 : 47, 48 : L CH / R CH
OK
OK
OK
Check Soldering or replace for the following parts.
• JK2
Check Soldering or replace for the following parts.
• IC2 : 5 pin AIN_CNT
Check Soldering or replace for the following parts.
• C62, C63 on INPUT PCB
NG
NG
NG
to 2.1. COMMON(signal)
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