- 2-6 -
When laser light
Does lenses move up and down?
• IC701 defective.
• IC 603 defective.
• Actuator short.
• Connector OPEN.
• Connector short.
• IC601 defective.
• Pick-up defective.
• Turntable height error.
• Laser diode degraded.
• IC 601 defective.
• Pattern defective.
Is Fok signal output?
IC101 Pin2 0.4V over OK.
Is Fok signal input to IC601
Pin13 ?
The waveform of IC601 pin2 Is
below figure?
Is IC601 pin2 signal waveform
output?
Is signal output at focus
search terminal?
Is signal output at IC601
1, 2?
NO
NO
NO
NO
NO
Amplitude
0.5~1.5V
NO
NO
YES
YES
YES
YES
YES
YES
YES
B
C
Summary of Contents for CD-372A
Page 16: ... 2 11 INTERNAL BLOCK DIAGRAM OF ICs LC72131 Block Diagram Pin Assignments Top View ...
Page 17: ... 2 12 Pin Assignments Top View TDA7440D Block Diagram ...
Page 18: ... 2 13 S3C8248 Block Diagram Pin Assignments Top View ...
Page 19: ... 2 14 TA2149BN Block Diagram KIA8207K TA8207K Block Diagram ...
Page 20: ... 2 15 TDA2104 MP3 DECODER Block Diagram Pin Assignments Top View ...
Page 23: ...2 20 2 21 BLOCK DIAGRAM ...
Page 24: ...2 22 2 23 SCHEMATIC DIAGRAMS 1 MAIN SCHEMATIC DIAGRAM ...
Page 25: ...2 24 2 25 2 µ COM SCHEMATIC DIAGRAM ...
Page 26: ...2 26 2 27 2 µ COM SCHEMATIC DIAGRAM FOR MP3 ...
Page 27: ...3 TUNER SCHEMATIC DIAGRAM 2 28 2 29 ...
Page 28: ...2 30 2 31 4 CD SCHEMATIC DIAGRAM ...
Page 29: ...4 CD SCHEMATIC DIAGRAM FOR MP3 2 32 2 33 ...
Page 30: ...2 34 2 35 5 DECODER SCHEMATIC DIAGRAM FOR MP3 ...
Page 31: ... WIRING DIAGRAM 2 36 2 37 ...
Page 32: ...2 38 2 39 PRINTED CIRCUIT BOARD DIAGRAMS 1 MAIN P C BOARD DIAGRAM COMPONENT SIDE ...
Page 33: ...2 40 2 41 1 MAIN P C BOARD DIAGRAM SOLDER SIDE ...
Page 35: ...3 CD P C BOARD DIAGRAM COMPONENT SIDE 2 44 2 45 3 CD P C BOARD DIAGRAM SOLDER SIDE SIDE ...
Page 37: ...3 3 3 4 MEMO MEMO ...
