NAD C 445 Service Manual

MAINTENANCE FLOW CHART
Start
Power on
Voltages NO 1. Check Cable
at pins of connector 2. Replace Power Supply unit if Power Board is not shorted,
(CN93) are normal? otherwise find out first where the short is.
YES
NO NO Check CNVMB114MA18L
Are FM/AM Is Power Supply (Tuner Module)
MAIN Board normal? normal? and peripheral circuit.
(CUP11866Y)
YES
NO
Is PLL Check S3F84BB
Clock normal? and peripheral circuit.
YES YES
Chcek TUNER module connection Antenna.
Power Board
(CUP11866Y)
NO NO Check DAB Module
Is DAB Is Power Supply and peripheral
normal? normal? circuit.
YES
NO Check 74ACT04(IC73) or
Is Voltage level 74LVC04(IC74) and
normal? peripheral circuit.
MAIN Board YES
(CUP11866Y)
YES NO Check S3F84BB or DAB
Are Clock and Module and peripheral
Data normal? Circuit.
YES
Check DAB Module connection Antenna.
Normal Operation
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NAD C 445 Specifications

General

Brand	NAD
Model	C 445
Category	Car Receiver
Language	English