Read Sony DVP-NS648P Service Manual online
7-1
DVP-NS648P
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 multimeter
(5) Standard commander (RMT-D187A/D187P/D189P)
(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)
7-1. SWITCHING REGULATOR OUTPUT
VOLTAGE CHECK
SRV2184WW
Mode
Except standby
Instrument
Digital multimeter
EVER+5V Check
Test point
Test point
CN201 pin 4
Specification
5.0 ± 0.3 Vdc
SW+3.3V Check
Test point
Test point
CN201 pin 5
Specification
3.4 ± 0.2 Vdc
SW+5V Check
Test point
Test point
CN201 pin 6
Specification
5.0 ± 0.3 Vdc
SW+8V Check
Test point
Test point
CN201 pin 1
Specification
8.2 ± 0.3 Vdc
EVER+11V Check
Test point
Test point
CN201 pin 3
Specification
11.0 Vdc
EVER–10V Check
Test point
Test point
CN201 pin q;
Specification
–10.2 Vdc
Checking method:
(1) Confirm that each voltage satisfies the specification.
Caution!
Please do not touch any electrical parts at primary circuit to avoid
electrical shock.
SECTION 7
ELECTRICAL ADJUSTMENT
+2.5
–0.5
+0.5
–14.0
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