2.6. Digital In 1/2
Check Power Supply Voltages for OPTICAL Input IC.
INPUT PCB
•[JK12], [JK13]:1pin +3.3V
MAIN PCB
•[IC27]:4pin +3.3V
Check Digital Audio Data input from OPTICAL.
MAIN PCB
•[IC22]:33pin OPT1, 35pin OPT2
OK
OK
Check the solder and replace any faulty parts.
•[CN16]:1pin +3.3V on INPUT PCB
•[IC27]:IN:+5V / OUT:+3.3V
•SMPS PCB
Check the solder and replace any faulty parts.
•[CN16]:5pin OPT1, 3pin OPT2 on INPUT PCB
•[CN16]:4pin GND on INPUT PCB
•INPUT PCB [JK12], [JK13]
NG
NG
To 2.1. COMMON(signal)
2.5 . Analog In
Check Analog Audio Signal from Analog.
MAIN PCB
•[JK22]:Analog In (L_CH / R_CH)
•[IC20]: 7, 4pin:AUX(L/R)
5pin:AIN_CNT1
CNT1 [H](AUX),
Check the DIR input.
•[IC22]:47, 48:VINL / VINR
OK
OK
OK
Check the solder and replace any faulty parts.
•[JK22] on MAIN PCB
Check the solder and replace any faulty parts.
•[IC61]
•[IC28]:17pin AIN_CNT
Check the solder and replace any faulty parts.
•[C375], [C389] on MAIN PCB
NG
NG
NG
To 2.1. COMMON(signal)
40
Содержание CEOL RCD-N9
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