Sony DVPNS61 Service Manual - Page 80

Electrical Adjustment

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DVP-NS36/NS37/NS45P/NS55P/NS61P/NS63P SECTION 7 ELECTRICAL 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 multimeter (5) Standard commander (RMT-D175A/RMT-D175P/RMT-D175C) (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. POWER SUPPLY OUTPUT VOLTAGE CHECK Mode Instrument EVER +5 V Check Test point Specification SW +3.3 V Check Test point Specification SW+5 V Check Test point Specification SW +8 V Check Test point Specification EVER +11 V Check Test point Specification EVER -10 V Check Test point Specification Except standby Digital multimeter CN201 pin 4 5.0 ± 0.3 Vdc CN201 pin 5 3.35 ± 0.2 Vdc CN201 pin 6 5.0 +0.2 -0.3 Vdc CN201 pin 1 8.0 ± 0.5 Vdc CN201 pin 3 11.0 +1.0 -0.5 Vdc CN201 pin q; -10.0 +0.5 -1.0 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. 7-1

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7-1
DVP-NS36/NS37/NS45P/NS55P/NS61P/NS63P
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-D175A/RMT-D175P/RMT-D175C)
(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.
POWER SUPPLY OUTPUT VOLTAGE
CHECK
Mode
Except standby
Instrument
Digital multimeter
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.
Caution!
Please do not touch any electrical parts at primary circuit to avoid
electrical shock.
+0.5
–1.0
+1.0
–0.5
+0.2
–0.3
SECTION 7
ELECTRICAL ADJUSTMENT