(No.YD068)1-61
D
C
NO
NO
NO
Does spindle rotate?
Proper
SPINDLE_S signal on
ZR36868
Check SPINDLE_S related
circuit on ZR36868
MOT_SPDL-
& M output
properly?
Check the spindle control
amp circuit of motor driver.
Check the cable connection
between spindle and main PCBA.
NO
Laser turns on when
reading disc?
NO
NO
NO
NO
DVD_LD or CD_LD output
properly?
Check the laser power circuit
on ZR36868 and connecting to
power transistor.
Collector voltage of
power transistor is OK?
Check the related circuit on
laser power transistor
Check cable connection between
transistor ouput and pick-up head.
Put disc in?
Laser off
Disc ID is correct?
Check DVD_LD & CD_LD signal
YES
YES
YES
YES
YES
YES
YES
YES
Summary of Contents for HR-XV28SEF
Page 9: ... No YD068 1 9 SECTION 3 DISASSEMBLY This service manual does not describe DISASSEMBLY ...
Page 69: ... No YD068 1 69 F FE RFL FIG 7 2 DVD F FE RFL FIG 7 3 CD ...
Page 70: ...1 70 No YD068 5 4 8 FOCUS ON WAVEFORM F FE RFL FIG 7 4 CD FOCUS_S FACT FACT FIG 8 1 DVD ...
Page 75: ... No YD068 1 75 5 4 14 AUDIO OUTPUT FROM AUDIO DAC FIG 14 1 ...
Page 78: ......
Page 86: ...A 1 2 3 4 5 B C D E F G SCART JACK CIRCUIT DIAGRAM SHEET 6 2 15 2 16 ...
Page 87: ...A 1 2 3 4 5 B C D E F G ع DVD SERVO CIRCUIT DIAGRAM SHEET 7 2 17 2 18 ...
Page 88: ...A 1 2 3 4 5 B C D E F G ع DVD AV JACK CIRCUIT DIAGRAM SHEET 8 2 19 2 20 ...
Page 89: ...A 1 2 3 4 5 B C D E F G ع DVD SYSTEM CIRCUIT DIAGRAM SHEET 9 2 21 2 22 ...
Page 90: ...PRINTED CIRCUIT DIAGRAMS VCR MAIN BOARD TOP SIDE 2 23 2 24 ...
Page 91: ...VCR MAIN BOARD BOTTOM SIDE 2 25 2 26 ...
Page 92: ...COMPONENT PARTS LOCATION GUIDE VCR MAIN 2 27 2 28 ...
Page 93: ...LOCATION GUIDE LOCATION GUIDE POWER BOARD KEY BOARD 2 29 2 30 ...
Page 101: ...IC7V1_SDA5650X IC802_NM1232 IC903_BH78968FS IC803_LD1117A IC801_ DA9605H IC BLOCK 2 45 2 46 ...
Page 107: ......