Electrical Adjustment; Power Supply Adjustment; Hs030Sh Board - Sony DVP-S725D Service Manual

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 diag-
nostic check, use the monitor that supports both NTSC and
PAL modes.
Use the reference disc for PAL for check, and use the refer-
ence 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-D108O/D108P/D109P/D111O/
D111P)
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)
SECTION 7

ELECTRICAL ADJUSTMENT

7-1. POWER SUPPLY ADJUSTMENT

1. HS-030SH Board
Mode
Instrument
+5 V Check
Test point
Specification
+3.3 V Check
Test point
Specification
EVER+5 V Check
Test point
Specification
P_CONT Check
Test point
Specification
A +12 V Check
Test point
Specification
–12 V Check
Test point
Specification
M +12 V Check
Test point
Specification
Checking method:
1) Confirm that each voltage satisfies the specification.
7-1
DVP-S325/S525D/S725D
E-E
Digital voltmeter
CN202 pin 5
5.0 ± 0.2 Vdc
CN202 pin 7
3.3 ± 0.2 Vdc
CN203 pin 2
5.0 ± 0.2 Vdc
CN203 pin 1
4V – 5 Vdc
CN202 pin 1
+1.5
9.5 Vdc
–0.5
CN203 pin 5
–12.0 ± 1.0 Vdc
CN202 pin 2
12.0 ± 1.0 Vdc