TROUBLESHOOTING GUIDE FOR CD-RW BOARD
Reset or Power Check.
•Is the Pin 1, 3 of PN403 5V?
•Is the Pin 5 of PN403 12V?
Does the pin1
of IC326 change 0V to 5V at the power
supply initial input mode?
• Check the PN403.
• Check the SMPS board.
YES
YES
NO
• Check the IC326(RESET IC).
NO
Are the IC405 Pin 4
and X302 oscillating?
YES
•Is the pin4 of IC305 3.9V?
•Is the Pin32 of IC108 2.0V?
•Is the Pin4 of IC414 3.3V?
YES
•Is the Pin7 of IC210 2.5V?
•Is the pin1 and 2 of IC210 2.0V?
YES
•Is the pin1 of IC204 8.0V?
•Is the pin1 of IC205 8.0V?
YES
•Check the X302, IC405.
•Check the IC320(µ-COM), PN402,
Pin 7(33M).
NO
•Check the IC305(BA3939).
•Check the IC108(CXA2551R).
•Check the IC414(BA033S).
NO
Check the IC210(NJM3414).
NO
•Check the IC204(NJM7808).
•Check the IC205(NJM7808).
NO
OK
CDR30
harman/kardon
22
Summary of Contents for CDR 30
Page 19: ...IC501 2 8 IC502 CDR30 harman kardon 19 ...
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Page 71: ...CIRCUIT DIAGRAMS 1 POWER SMPS CIRCUIT DIAGRAM 00 11 10 SI2448 UL CDR30 harman kardon 71 ...
Page 72: ...2 CD PLAY CIRCUIT DIAGRAM CDR30 harman kardon 72 ...
Page 73: ... 38 2 CD PLAY CIRCUIT DIAGRAM 73 Part 1 ...
Page 74: ... 38 2 CD PLAY CIRCUIT DIAGRAM 74 CD PLAY CIRCUIT DIAGRAM Part 2 ...
Page 75: ...3 CD RECORD 1 CIRCUIT DIAGRAM CDR30 harman kardon 75 ...
Page 76: ... 39 3 CD RECORD 1 CIRCUIT DIAGRAM 76 Part 1 ...
Page 77: ... 39 3 CD RECORD 1 CIRCUIT DIAGRAM 77 CD RECORD CIRCUIT DIAGRAM Part 2 ...
Page 78: ...4 CD RECORD 2 CIRCUIT DIAGRAM CDR30 harman kardon 78 ...
Page 79: ... 40 4 CD RECORD 2 CIRCUIT DIAGRAM 79 Part 3 ...
Page 80: ... 40 4 CD RECORD 2 CIRCUIT DIAGRAM 80 CD RECORD CIRCUIT DIAGRAM Part 4 ...
Page 81: ...5 CD RECORD 3 CIRCUIT DIAGRAM CDR30 harman kardon 81 ...
Page 82: ... 41 5 CD RECORD 3 CIRCUIT DIAGRAM 82 Part 5 ...
Page 83: ... 41 5 CD RECORD 3 CIRCUIT DIAGRAM 83 CD RECORD CIRCUIT DIAGRAM Part 6 ...
Page 84: ...6 I O CIRCUIT DIAGRAM CDR30 harman kardon 84 ...
Page 85: ... 42 6 I O CIRCUIT DIAGRAM 85 Part 1 ...
Page 86: ... 42 6 I O CIRCUIT DIAGRAM 86 I O CIRCUIT DIAGRAM Part 2 ...
Page 87: ... 43 7 TIMER CIRCUIT DIAGRAM CDR30 harman kardon 87 ...