7-1
DVP-K380
SECTION 7
ELECTRICAL ADJUSTMENT
7-1. POWER SUPPLY CHECK
1.
HS11S1U/ETXNY381N2F Boards
Mode
E-E
Instrument
Digital voltmeter
EVER +3.3 V Check
Test point
CN201 pin
qa
Specification
3.5 ± 0.2 Vdc
SW +3.3 V Check
Test point
CN201 pin
8
Specification
3.3 ± 0.2 Vdc
+5 V Check
Test point
CN201 pin
qs
Specification
5.0 ± 0.3 Vdc
SW +11 V Check
Test point
CN201 pin
6
,
7
Specification
11.0 ± 1.0 Vdc
EVER +11 V Check
Test point
CN201 pin
qd
Specification
11.0 ± 1.0 Vdc
EVER –13 V Check
Test point
CN201 pin
3
Specification
–13.0 ± 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.
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 diagnostic check, use
the monitor that supports both NTSC and PAL modes.
Use the reference disc for PAL for check, and use the reference disc
for NTSC for adjustment.
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-127E)
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)
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