3-7
C
LD_DVD or LD_CD
output properly?
Laser turns on when
reading disc?
Put disc in?
Disc ID is correct?
Does spindle rotate?
D
NO
NO
NO
NO
YES
YES
YES
YES
YES
YES
Check the laser power circuit
on ZR36888 and connecting
to power transistor.
NO
Collector voltage of power
transistor is OK?
Check the related circuit on
laser power transistor
NO
Check cable connection
between transistor ouput
and pick-up head.
YES
YES
YES
Check the related circuit
on ZR36888 RFL signal.
Check SPINDLE_S related
circuit on ZR36888.
NO
NO
Check the spindle control
amp circuit of motor driver.
NO
Laser off
Proper RF signal on
ZR36888?
Check LD_DVD & LD_CD
signal
Proper SPINDLE_S signal
on ZR36888
SP+ & SP- output properly?
Check the cable connection
between spindle and main
PCBA.
Содержание T515AH
Страница 21: ......
Страница 24: ...3 13 2 Tray open waveform FIG 3 2 3 Tray close waveform FIG 3 3 OPEN CLOSE LM LM OPEN CLOSE LM LM ...
Страница 27: ...3 16 FIG 7 2 DVD FIG 7 3 CD FACT FACT FE FE SBAD SBAD ...
Страница 28: ...3 17 FIG 7 4 CD 8 FOCUS ON WAVEFORM FIG 8 1 DVD FE FOSO FACT FACT FACT FE SBAD ...
Страница 31: ...3 20 11 RF WAVEFORM FIG 11 1 12 ZR36888 AUDIO OPTICAL AND COAXIAL OUTPUT SPDIF FIG 12 1 RFO SPDIF ...
Страница 32: ...3 21 13 ZR36888 VIDEO OUTPUT WAVEFORM 1 Full colorbar signal CVBS FIG 13 1 2 Y FIG 13 2 JK701 pin3 JK701 pin9 ...
Страница 33: ...3 22 14 AUDIO OUTPUT FROM AUDIO DAC 1 AUDIO L R FIG 14 1 3 C FIG 13 3 JK701 PIN10 JK702 PIN2 4 1KHz 0DB ...
Страница 34: ...3 23 2 Audio Related Signal FIG 14 2 AOUT0 ABCK ALRCLK ...
Страница 41: ...3 31 3 32 2 SYSTEM MAIN CIRCUIT DIAGRAM A 1 2 3 4 5 6 7 8 9 10 11 12 B C D E F G H I J K L M N O P Q R S T ...
Страница 42: ...3 33 3 34 A 1 2 3 4 5 6 7 8 9 10 11 12 B C D E F G H I J K L M N O P Q R S T 3 SERVO CIRCUIT DIAGRAM ...
Страница 43: ...3 35 3 36 4 AV JACK CIRCUIT DIAGRAM A 1 2 3 4 5 6 7 8 9 10 11 12 B C D E F G H I J K L M N O P Q R S T ...
Страница 44: ......
Страница 45: ...3 39 3 40 6 TIMER CIRCUIT DIAGRAM A 1 2 3 4 5 6 7 8 9 10 11 12 B C D E F G H I J K L M N O P Q R S T ...
Страница 46: ......
Страница 48: ...3 45 3 46 PRINTED CIRCUIT DIAGRAMS 1 MAIN P C BOARD TOP VIEW BOTTOM VIEW ...
Страница 49: ...3 47 3 48 2 KEY P C BOARD 3 TIMER P C BOARD TOP VIEW BOTTOM VIEW TOP VIEW BOTTOM VIEW ...