Power Supply Adjustment - Sony DVP-CX860 Service Manual

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) Digital voltmeter
4) Standard commander RMT-233A (NTSC)
RMT-233P (PAL)
RMT-234A (NTSC)
5) 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)
6) SACD reference disc
HLXA-509 (J-6090-090-A)
Extension cable (J-6090-102-A)
SECTION 7
ELECTRICAL ADJUSTMENT

7-1. POWER SUPPLY ADJUSTMENT

1. MPW124V Board
Mode
Instrument
SW+5 V Check
Test point
Specification
SW+3.3 V Check
Test point
Specification
EVER+5 V Check
Test point
Specification
SW +11 V Check
Test point
Specification
SW -11 V Check
Test point
Specification
Checking method:
1) Confirm that each voltage satisfies the specification.
7-1
DVP-CX860/CX870D
E-E
Digital voltmeter
CN101 pin 5,6
5.0 ± 0.2 Vdc
CN101 pin 8,9
3.3 ± 0.2 Vdc
CN101 pin 7
5.0 ± 0.2 Vdc
CN101 pin 3,4
11.0 ± 1.0 Vdc
CN101 pin qf,qg
–11.0 ± 1.0 Vdc