Sony DVP-FX815 (serv.man2) Service Manual ▷ View online
8-1
SECTION 8
ELECTRICAL ADJUSTMENT
DVP-FX815
This section describes procedures and instructions necessary for
adjusting electrical circuits in this set.
adjusting electrical circuits in this set.
Instruments required:
1) Color monitor TV
2) Oscilloscope 1 or 2 phenomena, band width over 100 MHz,
2) Oscilloscope 1 or 2 phenomena, band width over 100 MHz,
with delay mode
3) Frequency counter (over 8 digits)
4) Digital voltmeter
5) Standard commander (RMT-D182A)
6) DVD reference disc
4) Digital voltmeter
5) Standard commander (RMT-D182A)
6) DVD reference disc
HLX-501 (J-6090-071-A) (dual layer) (NTSC)
HLX-503 (J-6090-069-A) (single layer) (NTSC)
HLX-504 (J-6090-088-A) (single layer) (NTSC)
HLX-505 (J-6090-089-A) (dual layer) (NTSC)
HLX-503 (J-6090-069-A) (single layer) (NTSC)
HLX-504 (J-6090-088-A) (single layer) (NTSC)
HLX-505 (J-6090-089-A) (dual layer) (NTSC)
8-1. STANDARD VIDEO LEVEL
1. Checking Video Output Level
<Purpose>
This checks whether Video Output level satisfy the NTSC stan-
dard. If it is not correct, the brightness will be too large or small.
This checks whether Video Output level satisfy the NTSC stan-
dard. If it is not correct, the brightness will be too large or small.
Mode
Play
Signal
Check the Color-bar (100%) signal
on DVD reference disc
on DVD reference disc
Measurement Point
LINE OUT (VIDEO) connector
(75
(75
Ω terminated)
Measuring Instrument
Oscilloscope
Specification
1.00
± 0.02 Vp-p
Checking method:
1) Confirm that the Video Output level is 1.00
1) Confirm that the Video Output level is 1.00
± 0.02 Vp-p.
Figure 8-1
1.00
±
0.02 Vp-p
8-2E
MEMO
9-1
SECTION 9
TROUBLESHOOTING
DVP-FX815
9-1. ELECTRICAL TROUBLE SHOOTING GUIDE
No power on
by adaptor
No power on
by battery
Is adaptor
out 9.5V?
YES
NO
Is P1 OK?
Replace P1
Is D2 OK?
NO. P_3V3
NO. +3.3V
NO. +5V
NO. +1.8V
Is Q4 OK?
Replace Q4
Is U6 OK?
Replace U6
Is U5 OK?
Is U1 OK?
Is –AVCC
OK?
Replace U5
NO.
LCD power
LCD power
Replace U16
Replace U1
Is U3 OK?
Replace U3
Replace U9
Is U9 OK?
Replace D2
Replace adaptor
Is battery OK?
Replace Q1
Is Q1 OK?
Replace battery
AUDIO OUT ABNORMAL
SPEAKER ABNORMAL
Is VR1 OK?
Replace VR1
Replace U20
Replace U10
Replace speaker
Is U20 OK?
Is speaker OK?
Check audio jack & mode
Check U24
Check U18
Check U17
Check signals from
U10 (MT1389)
YES
YES
YES
YES
NO
NO
NO
NO
NO
NO
NO
NO
NO
NO
NO
NO
NO
NO
NO
YES
YES
YES
YES
YES
YES
YES
YES
YES
YES
YES
YES
YES
YES
YES
YES
YES
1. A. Power (DC-DC Converter) circuit
B. Audio out abnormal
C. Speaker abnormal
9-2
VIDEO OUT ABNORMAL
OPEN/CLOSE ABNORMAL
NO CHARGING
Is 9.5V OK?
Check P1
Is Q4, U9 OK?
Replace Q4, U9
Is U8 OK?
Replace U8
Is Q31 OK?
Replace Q31
Is J2 OK?
Replace J2
Check SW5 & SW6
Check the connection of part
Check traverse
PICTURE ABNORMAL
DISC ERROR
Check video jack & mode
Check the disc
Check disc
Check the traverse
Check traverse
Check the SDRAM
Refer to servo part
Refer to servo part
Check LC filter
Check video signals from
U10 (MT1389)
YES
YES
YES
YES
D. Video out abnormal
G. Open/close abnormal
H. Charging circuit
E. Picture abnormal
F. Disc error
NO
NO
NO
NO
NO
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