Electrical Adjustment; Power Supply Adjustment - Sony DVP-NC625 Service Manual

In making adjustment, refer to 7-3. Adjustment Related
Parts Arrangement.
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 voltmeter
5) Standard commander (RMT-D126J)
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) SACD reference disc
HLXA-509 (J-6090-090-A)
8) Extention Cable (J-6090-107-A)
SECTION 7

ELECTRICAL ADJUSTMENT

7-1. POWER SUPPLY ADJUSTMENT

ETXNY410M0F
DPS-21BPA
Mode
Instrument
EVER +0.5 V Check
Test point
Specification
SW +3.5 V Check
Test point
Specification
SW+5 V Check
Test point
Specification
SW +11 V Check
Test point
Specification
EVER +11 V Check
Test point
Specification
EVER –15.5 V Check
Test point
Specification
Checking method:
1)
Note
Because the heatsink installed on the power supply board is a part of
the primary side, never touch it to avoid electrical shock.
Abbreviation
US
CND
PX
E
MX
AEP
UK
SP
AUS
7-1
DVP-NC625/NC665P
NC625 : E, AEP, UK
NS625 : AUS, SP
NC625 : US, CND, MX
NC665P
E-E
Digital voltmeter
CN201 pin qa
5.0 ± 0.3 Vdc
CN201 pin 0
3.5 ± 0.2 Vdc
CN201 pin qs
5.0 ± 0.3 Vdc
CN201 pin 5,6
11.0 ± 1.0 Vdc
CN201 pin qd
11.2 ± 1.0 Vdc
CN201 pin 2
–15.5 ±
Confirm that each voltage satisfies the specification.
: USA model
: Canadian model
: PX model
: Latin model
: Mexico model
: AEP model
: UK model
: Singapore model
: Australia model
–7.0
Vdc
+1.0