7-1
SECTION 7
ELECTRICAL ADJUSTMENT
DVP-NC615/NC655P
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.
Use the reference disc for PAL for check, and use the refer-ence
disc for NTSC for adjustment.
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-D143A/D143E/D143P/D144A)
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-506 (J-6090-077-A) (single layer) (PAL)
HLX-507 (J-6090-078-A) (dual layer) (PAL)
7)
SACD reference disc
HLXA-509 (J-6090-090-A)
8)
Extention Cable (J-6090-107-A)
HLX-505 (J-6090-089-A) (dual layer)
7-1. POWER SUPPLY ADJUSTMENT
1.
Power Supply Check
(HS10S1U/HS10S1F Boards)
Mode
E-E
Instrument
Digital voltmeter
SW +3.3 V Check
Test point
CN201 pin
7
Specification
3.5 ± 0.2 Vdc
EVER +3.3 V Check
Test point
CN201 pin
0
Specification
3.5 ± 0.2 Vdc
SW +5 V Check
Test point
CN201 pin
qa
Specification
5.0 ± 0.3 Vdc
SW +11 V Check
Test point
CN201 pin
5
,
6
Specification
11.0 ± 1.0 Vdc
EV –13 V Check
Test point
CN201 pin
2
Specification
–13.0 ± 1.0 Vdc
EVER +11 V Check
Test point
CN201 pin
qs
Specification
11.2 ± 1.0 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.
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