7-1
SECTION 7
ELECTRICAL ADJUSTMENT
DVP-NS975V
In making adjustment, refer to 7-3. Adjustment Related
Parts Arrangement.
This section describes procedures and instructions necessary for
adjusting electrical circuits in this unit.
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-D172A)
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)
7) SACD reference disc
HLXA-509 (J-6090-090-A)
8) Extention Cable (J-6090-107-A)
7-1. POWER SUPPLY ADJUSTMENT
Mode E-E
Instrument Digital voltmeter
EVER +5 V Check
Test point CN201 pin 4
Specification 5.0 ± 0.3 Vdc
SW +3.3 V Check
Test point CN201 pin 5
Specification 3.35 ± 0.2 Vdc
SW+5 V Check
Test point CN201 pin 6
Specification 5.0 ± Vdc
SW +8 V Check
Test point CN201 pin 1
Specification 8.0 ± 0.5 Vdc
EVER +11 V Check
Test point CN201 pin 3
Specification 11.0 ± Vdc
EVER –10 V Check
Test point CN201 pin q;
Specification –10.0 ± Vdc
Checking method:
1) Confirm that each voltage satisfies the specification.
Note
Because the heatsink installed on the power supply board is a part of
the primary side, never touch it to avoid electrical shock.
+0.5
–1.0
+1.0
–0.5
+0.2
–0.3
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