Yamaha DVD-S540 Service Manual page 20

DVD-S540/DV-S5650
C
Track on OK ?
Yes
Disk is READY ?
Yes
Audio signal is normal ?
Yes
TSOP2236,
FL display and Key
fuction OK ?
Yes
END
20
Signal TEO
No
(pin 21 of MT1336E)
normal ?
Yes
Signal TRSO
(pin13 of MT1379BE)
normal ?
Yes
Signa l
T+ (TP3) & T- (TP14)
normal ?
Yes
Check the connection
between Optical Pick Up and
BA5954
No
Check RF Signal
No
AKM4382A receive
correct data ?
Yes
Output signal is
correct ?
Yes
Check the circuit of
filter, amplifier, and mute
etc.
TSOP2236,
No
uPD16312GB communicate
with MT1379BE
OK ?
Yes
Check Remote Control
Check KEY matrix
Check connection of FL display
No
Check MT1336E and its
peripheral circuit.
Check the connection
No
between MT1379BE (pin 13)
and MT1336E (pin 26)
No
Check BA5954 and its
peripheral circuit.
No
Check connection between
MT1379BE and AKM4382A
No
Check AKM4382A
and its periperal circuit
Check connection between
No
MT1379BE and uPD16312GB
and its periperal circuit
Board Ref Name
DISPLAY 7100 uPD16312GB
DISPLAY 7101 TSOP2236
MONO 7602 MT1336E
MONO 7603 BA5954
MONO 7606 MT1379BE
MONO 7615 AKM4382A