Electrical Adjustments; Power Supply Adjustment; Power Supply Check (Hs-034Sf/034Su Board) - Sony dvp-c650d Service Manual

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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)
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L 13942296513
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ELECTRICAL ADJUSTMENTS

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SECTION 7
2 9
8

7-1. POWER SUPPLY ADJUSTMENT

1. Power Supply Check
(HS-034SF/034SU BOARD)
Mode
Instrument
+5 V Check
Test point
Specification
+3.3 V Check
Test point
Specification
EVER+5 V Check
Test point
Specification
P_CONT Check
Test point
Specification
A +12 V Check
Test point
Specification
–12 V Check
Test point
Q Q Specification
3 6 7 1 3 1 5
M +12 V Check
Test point
Specification
Checking method:
1) Confirm that each voltage satisfies the specification.
co
.
7-1
DVP-C650D/C653D
9 4 2 8
E-E
Digital voltmeter
CN202 pin 5
5.0 ± 0.2 Vdc
CN202 pin 7
3.3 ± 0.2 Vdc
CN203 pin 2
5.0 ± 0.2 Vdc
CN203 pin 1
4V – 5 Vdc
CN202 pin 1
+1.5
9.5 Vdc
–0.5
CN203 pin 5
–12.0 ± 1.0 Vdc
0 5 8 2 9 9 4 2 8
CN202 pin 2
12.0 ± 1.0 Vdc
m
9 9
9 9