Sony DVP-C653D, Service Manual, Page: 82 / 103

7-1
7-1. POWER SUPPLY ADJUSTMENT
1. Power Supply Check
(HS-034SF/034SU BOARD)
Mode E-E
Instrument Digital voltmeter
+5 V Check
Test point CN202 pin
5
Specification 5.0 ± 0.2 Vdc
+3.3 V Check
Test point CN202 pin
7
Specification 3.3 ± 0.2 Vdc
EVER+5 V Check
Test point CN203 pin
2
Specification 5.0 ± 0.2 Vdc
P_CONT Check
Test point CN203 pin
1
Specification 4V – 5 Vdc
A +12 V Check
Test point CN202 pin
1
Specification 9.5 Vdc
–12 V Check
Test point CN203 pin
5
Specification –12.0 ± 1.0 Vdc
M +12 V Check
Test point CN202 pin
2
Specification 12.0 ± 1.0 Vdc
Checking method:
1) Confirm that each voltage satisfies the specification.
SECTION 7
ELECTRICAL ADJUSTMENTS
DVP-C650D/C653D
In making adjustment, refer to 7-3. Adjustment
Related Parts Arrangement.
Note : During diagnostic check, the characters and color bars can
be seen only with the NTSC monitor. Therefore, for diag-
nostic check, use the monitor that supports both NTSC and
PAL modes
This section describes procedures and instructions necessary for
adjusting electrical circuits in this set.
Instruments required:
1) Color monitor TV
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-D112A)
6) DVD reference disc
HLX-501 (J-6090-071-A) (dual layer)
HLX-503 (J-6090-069-A) (single layer)
HLX-504 (J-6090-088-A) (single layer)
HLX-505 (J-6090-089-A) (dual layer)
7) SACD reference disc
HLXA-509 (J-6090-090-A)
+1.5
–0.5