Diagnostic Software, Trouble Shooting and Test InstructionsDVD625 /0x15.EN 23
C
Signal TEO
Check MT1336 and its
Track on OK?N(pin21 of MT1336)N
peripheral circuit.
normal?
Y
Signa TRSOCheck the TRSO connection
(pin13 of MT1379)Nbetween MT1379 (pin13) and
normal?MT1336 (pin26)
Y
Signa l
YCheck MT1336 and its
T+Â Â &Â Â T-N
peripheral circuit.
normal?
Y
Check the connection
between OPU and BA5945
Disk is READY?NCheck RF Signal
Y
Audio DAC receiveCheck connection between
Audio signal normal?NN
correct data?MT1379 and Audio DAC
Y
Output signal  areCheck Audio DAC and it s
N
correct?periperal circuit
YY
Check the circuit of
filter, Amplify, and mute
etc.
IR,VFD displayIR, PT6312Check connection between
and Key fuctionNcommunicate withNMT1379 and PT6312 and its
ok?MT1379Â OK?periperal circuit
Y
check Remote Contriol
Y
check KEY matrix
Check connection of VFD
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