- 2-11 -
Check the fuse F901
Check the DC V of C905.
If DC V is over 400V
Check the DC V Of
C981,C945. If DC V is 6.1V
OK
Chcek the DC VOf
C950,C951 If DC V is in
35V,-35V
Chcek the DC V Of C909,
C903,C921 If DC V is in
14~19V and it is steady.
Replace the fuse
Check BD901, LF901,902
Check IC901 ,902
Replace IC 901,902
Check short of P9702 line
Check short of P9701 line
Check short of P9701,P9702
line
*MAIN PART
YES
NO
YES
YES
YES
YES
YES
NO
NO
NO
NO
NO
■
SMPS POWER CIRCUIT
Summary of Contents for LMS-K3960V
Page 7: ... 1 6 ...
Page 20: ... 2 13 INTERNAL BLOCK DIAGRAM of ICs TAS5142 BLOCK DIAGRAM ...
Page 21: ... 2 14 U1739EJ2V1UD00 KF2_E BLOCK DIAGRAM ...
Page 22: ... 2 15 HA12237F BLOCK DIAGRAM ...
Page 23: ... 2 16 STR S6757IF1905 BLOCK DIAGRAM PS9829B BLOCK DIAGRAM ...
Page 25: ... 2 18 PT6324 BLOCK DIAGRAM ...
Page 28: ...2 23 2 24 MAIN SCHEMATIC DIAGRAM ...
Page 29: ...2 25 2 26 MAIN AMP SCHEMATIC DIAGRAM ...
Page 30: ...2 27 2 28 FRONT SCHEMATIC DIAGRAM ...
Page 31: ...2 29 2 30 SMPS SCHEMATIC DIAGRAM ...
Page 32: ...2 31 2 32 DECK SCHEMATIC DIAGRAM ...
Page 33: ...2 33 2 34 JACK IO SCHEMATIC DIAGRAM ...
Page 35: ...2 37 2 38 PRINTED CIRCUIT DIAGRAMS MAIN P C BOARD ...
Page 36: ...2 39 2 40 MAIN P C BOARD ...
Page 37: ...2 41 2 42 FRONT P C BOARD ...
Page 38: ...2 43 2 44 SMPS P C BOARD DECK P C BOARD ...
Page 39: ......
Page 51: ... 3 12 TRACKING SIGNAL RF WAVEFORM 1 Tro 2 Tr 3 Tr ...
Page 52: ... 3 13 DISK TYPE JUGEMENT WAVEFORM 1 F 2 FDO 3 SVRRF DVD CD ...
Page 53: ... 3 14 ...
Page 54: ...3 15 3 16 DVD SCHEMATIC DIAGRAMS MPEG SCHEMATIC DIAGRAM ...
Page 55: ...3 17 3 18 RF SERVO SCHEMATIC DIAGRAM ...
Page 56: ...3 19 3 20 INTERFACE SCHEMATIC DIAGRAM ...
Page 57: ...3 21 3 22 USB SCHEMATIC DIAGRAM ...
Page 58: ...3 23 3 24 PRINTED CIRCUIT DIAGRAMS DVD P C BOARD ...
Page 59: ...3 25 3 26 DVD P C BOARD ...
Page 65: ... 5 2 ...
