Sony RMT-D141A - SECTION 7 ELECTRICAL ADJUSTMENT; 7-1. POWER SUPPLY CHECK; 1. SRV1246 JUC Board

7-1
DVP-NS305/NS310/NS315/NS405/NS410/NS415
SECTION 7
ELECTRICAL ADJUSTMENT
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)
HLX-503 (J-6090-069-A) (single layer)
HLX-504 (J-6090-088-A) (single layer)
HLX-505 (J-6090-089-A) (dual layer)
7) SACD reference disc
HLXA-509 (J-6090-090-A)
8) Extension Cable (J-6090-107-A)
7-1. POWER SUPPLY CHECK
1. SRV1246JUC Board
Mode E-E
Instrument Digital voltmeter
EVER +3.3 V Check
Test point CN201 pin qa
Specification 3.5 ± 0.2 Vdc
SW +3.3 V Check
Test point CN201 pin 8
Specification 3.3 ± 0.2 Vdc
+5 V Check
Test point CN201 pin qs
Specification 5.0 ± 0.3 Vdc
SW +11 V Check
Test point CN201 pins 6, 7
Specification 11.0 ± 1.0 Vdc
EVER +11 V Check
Test point CN201 pin qd
Specification 11.0 ± 1.0 Vdc
EVER –13 V Check
Test point CN201 pin 3
Specification –13.0 ± 1.0 Vdc
Checking method:
1) Confirm that each voltage satisfies the specification.
Note
Because the heatsink installed on the power supply board is a part of the
primary side, never touch it to avoid electrical shock.