3-8
D
Proper signals on A, B, C,
D of MT1389D
Focus ON OK?
Track On OK?
Disc is play ?
E
NO
NO
NO
YES
YES
YES
YES
YES
Check connections between
MT1389D and pick-up head.
NO
Check FEO signal on
MT1389D
YES
Check the FOSO connec-
tion on MT1389D and
motor driver.
NO
Check FOSO signal on
MT1389D
YES
YES
Check the TRSO
connection on MT1389D
and motor dirver.
NO
Check the tracking control
amp circuit on motor driver.
NO
Normal TEO Signal on
MT1389D?
NO
Check the related
circuit on MT1389D
Properly TRSO signal on
MT1389D?
T+ & T- output properly?
Check cable connection on
pick-up head.
Check RFO & RFLVL signal
waveform.
Summary of Contents for DV140
Page 25: ...3 15 FIG 7 2 DVD FIG 7 3 CD F F FE FE RFL RFL...
Page 26: ...3 16 FIG 7 4 CD 8 FOCUS ON WAVEFORM FIG 8 1 DVD FE FOSO F F F FE RFL...
Page 30: ...3 20 2 COMPOSITE VIDEO SIGNAL FIG 13 2 13 AUDIO OUTPUT FROM AUDIO DAC FIG 13 1...
Page 37: ...3 28 3 29 2 AV JACK CIRCUIT DIAGRAM A B C D E F G H I J K L M N O P Q R S T...
Page 38: ...3 30 3 31 A B C D E F G H I J K L M N O P Q R S T 3 SYSTEM CIRCUIT DIAGRAM...
Page 40: ...3 34 3 35 5 TIMER CIRCUIT DIAGRAM A B C D E F G H I J K L M N O P Q R S T...
Page 42: ...3 38 3 39 PRINTED CIRCUIT DIAGRAMS 1 MAIN P C BOARD LOCATION GUIDE...
Page 44: ...3 42 3 43 4 SMPS P C BOARD 360mm ONLY LOCATION GUIDE 430mm ONLY...
Page 45: ......
