
3-18
Put disc in tray.
Laser off
Check the laser power circuit
between ES8380 and power
transistor. (Q405, Q406)
Laser
turns on when
reading disc?
DVDLD
or CDLD output
properly?
NO
NO
NO
YES
Check the related circuit of
laser power transistor.
Collector
voltage of power
transistor is OK?
(Q405, Q406)
NO
YES
YES
YES
B
C
Check cable connection
between P400 and
pick-up head.
Check the SPINDLE related
circuit on ES8380
Does SPINDLE
rotate?
Proper
SPINDLE signal
on ES8380.
NO
Check the SPINDLE control
of motor driver.
SPIN+ &
SPIN- output
properly?
NO
NO
YES
YES
YES
Check the cable
connection between
P400 and MD
ELECTRICAL TROUBLESHOOTING GUIDE OF DVD PART
Summary of Contents for MBD-D102X
Page 7: ...1 6 MEMO ...
Page 10: ...2 5 3 SPEAKER SECTION MBS D102V 750 751 752 754 755 757 A70A 758 A70 757A 759 756 753 ...
Page 35: ...3 24 4 FOCUS WAVEFORM 1 FDO 2 F 3 F INSERT CD INSERT DVD 1 FDO 2 F 3 F ...
Page 37: ...3 26 7 TRACKING SIGNAL 1 Tro 2 Tr 3 Tr 8 RF WAVEFORM ...
Page 38: ...3 27 9 DISK TYPE JUGEMENT WAVEFORM 1 F 2 FDO 3 SVRRF DVD CD ...
Page 50: ...3 39 7 MC4580 7 1 PIN CONFIGURATION 7 2 TEST CIRCUIT 7 3 ABSOLUTE MAXIMUM RATINGS TA 25 ...
Page 60: ...3 49 3 50 WIRING DIAGRAM ...
Page 62: ...3 53 3 54 2 MAIN FRONT BLOCK DIAGRAM ...
Page 64: ...3 57 3 58 2 MAIN INTERFACE PWM SCHEMATIC DIAGRAM ...
Page 65: ...3 59 3 60 3 MPEG SCHEMATIC DIAGRAM ...
Page 66: ...3 61 3 62 4 SERVO SCHEMATIC DIAGRAM ...
Page 67: ...3 63 3 64 5 INTERFACE SCHEMATIC DIAGRAM ...
Page 68: ...3 65 3 66 6 FRONT SCHEMATIC DIAGRAM ...
Page 69: ...3 67 3 68 7 FRONT MIC SCHEMATIC DIAGRAM ...
Page 70: ...3 69 3 70 8 IPOD 1 SCHEMATIC DIAGRAM OPTION ...
Page 71: ...3 71 3 72 9 IPOD 2 SCHEMATIC DIAGRAM OPTION ...
Page 72: ...3 73 3 74 10 2 CHANNEL AMP SCHEMATIC DIAGRAM ...
Page 73: ...3 75 3 76 11 BLUTHOOTH MODULE SCHEMATIC DIAGRAM OPTION ...
Page 75: ...3 79 3 80 1 MAIN P C BOARD TOP VIEW PRINTED CIRCUIT BOARD DIAGRAMS ...
Page 76: ...3 81 3 82 MAIN P C BOARD BOTTOM VIEW ...
Page 77: ...3 83 3 84 2 FRONT P C BOARD TOP VIEW BOTTOM VIEW ...
Page 78: ...3 85 3 86 3 SMPS P C BOARD TOP VIEW BOTTOM VIEW ...