Service modes, repair tips and faultfinding trees
GB 22
CDR 3rd gen.
5.
Figure 5-13
RESET & CLOCK CHECK
USE CDR MAIN BOARD CIRCUIT DIAGRAMS 4, 9 AND 10 AND CDR MAIN BOARD BOTTOM VIEW : RESET & CLOCK TESTPOINTS
OK
OK
OK
OK
OK
NOK
Switch on player,
exit stand by mode
MRESET high (3V3) testpoint R1
Check power part
Check reset devices 7704 and 7710
BE_RESET low testpoint R2
NOK
Check DASP (IC7701)
SYS_RESET display high (3V3) testpoint R3
NOK
Check DASP (IC7701)
SYS_RESET CD low testpoint R4
NOK
Check T7707
RESET SIGNALS OK
* FOR CDR775/776 ONLY
SRSTN high (3V3) testpoint R5
NOK
Check MACE (IC7270)
MAIN_CLOCK 33.8688MHz testpoint R6
OK
CLOCK SIGNALS OK
NOK
Check X-TAL 1707, IC7705, D6701, D6702
SYS_CLK_11B 11.2896MHz testpoint R7
NOK
Check DASP (IC7701), IC7708
SYS_CLK_8W 8.4672MHz testpoint R9
SYS_CLK_BE 8.4672MHz testpoint R9
OK
NOK
Check IC7706
OK
SYS_CLK_16W 16.9344MHz testpoint R8
OK
NOK
Check DASP (IC7701)
CL06532018_016.eps
290200
Summary of Contents for CDR-775
Page 10: ...Mechanical instructions GB 10 CDR 3rd gen 4 Clamper Figure 4 7 CL06532018_007 eps 210200 ...
Page 35: ...Circuit description GB 77 CDR 3rd gen 9 9 2 List of Abbreviations CL06532018_026 eps 290200 ...
Page 36: ...Circuit description GB 78 CDR 3rd gen 9 CL06532018_027 eps 290200 ...
Page 37: ...Circuit description GB 79 CDR 3rd gen 9 CL06532018_028 eps 290200 ...
Page 38: ...Circuit description GB 80 CDR 3rd gen 9 CL06532018_029 eps 290200 ...
Page 39: ...Circuit description GB 81 CDR 3rd gen 9 CL06532018_030 eps 290200 ...
Page 40: ...Circuit description GB 82 CDR 3rd gen 9 CL06532018_031 eps 290200 ...
Page 41: ...Circuit description GB 83 CDR 3rd gen 9 CL06532018_032 eps 290200 ...
Page 42: ...Circuit description GB 84 CDR 3rd gen 9 CL06532018_033 eps 290200 ...