DVP-PR30, DVP-PR50P, DVP-PR60P - Sony DVD Service Manual (repair manual). Page 54

7-1

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/RMT-D189A/
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)

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