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3-64
NO
NO
YES
YES
Check the laser power circuit
on ZR36966 and connecting
to power transistor.
Check cable connection
between transistor ouput
and pick-up head.
NO
Laser off
NO
NO
YES
Check the related circuit
on ZR36966 RF signal.
Check LD_DVD &
LD_CD signal
YES
YES
NO
NO
YES
Check SPINDLE_S
circuit on ZR36966.
SP+ & SP- output properly?
NO
YES
Check the spindle control
amp circuit of motor driver.
Check the cable connection
between spindle and main
PCBA.
YES
YES
Laser
turns on when
reading disc?
LD_DVD,
LD_CD output
properly?
NO
Check the related circuit on
laser power transistor
Collector
voltage power of Q201,
Q202 transistor
is OK?
Put disc in?
Disc ID is
correct?
Does
spindle rotate?
Proper
RF signal of ZR36966
Pin157?
Proper
SPINDLE_S
signal of ZR36966
Pin157?
C
D
DVD ELECTRICAL TROUBLESHOOTING GUIDE
Summary of Contents for DVP3350V/01
Page 17: ...2 8 MEMO ...
Page 45: ...3 37 3 38 5 TUNER CIRCUIT DIAGRAM ...
Page 51: ...3 49 3 50 IC301_LA71750EM IC501_MN101D10X IC801_TDA9605H IC751_MSP3417 3407 ...
Page 52: ...3 51 3 52 PRINTED CIRCUIT BOARD DIAGRAMS 1 MAIN P C BOARD TOP SIDE ...
Page 53: ...3 53 3 54 2 MAIN P C BOARD BOTTOM SIDE ...
Page 54: ...3 55 3 56 3 POWER P C BOARD ...
Page 55: ...3 57 3 58 4 KEY P C BOARD ...
Page 77: ...3 80 MEMO ...
Page 78: ...3 81 3 82 CIRCUIT DIAGRAMS 1 MPEG CIRCUIT DIAGRAM ...
Page 79: ...3 83 3 84 2 SERVO CIRCUIT DIAGRAM ...
Page 80: ...3 85 3 86 3 JACK CIRCUIT DIAGRAM ...
Page 113: ...4 32 MEMO ...
Page 119: ...5 6 MEMO ...
Page 121: ...5 9 5 10 MEMO MEMO ...