Yamaha RDX-E600MK2 - Maintenance Flow Chart

DVD-E600MK2
11
DVD-E600MK2
■ MAINTENANCE FLOW CHART
Start
MAIN (5) Board
MONO Board
Power on
Are voltages
at all pins of W4 in MAIN (5) Board
normal ?
Is voltage
at +3V3 of power part
normal ?
A
Ye s
No
Ye s
No
1. Check Cable
2. Replace power supply unit if MAIN (5) Board is not shorted,
otherwise find out first where the short is.
Are voltages
at pins of connector (Ref 1104)
in Mono Board
normal ?
Ye s
No
1. Check Cable
2. Replace MAIN (5) Board if Mono Board is not shorted,
otherwise find out first where the short is.
Are voltages
at +8V and +1V8 of power part
normal ?
Is voltage
at +5A of power part
normal ?
Ye s
No
Ye s
No
Check LD1117 (Ref 7101) and peripheral circuit.
Check IC3, IC1 and peripheral circuit.
Check IC4 and peripheral circuit.