Electrical Adjustment; Power Supply Check; Ps-408/413 Board; Board - Sony dvp-s3000 Service Manual

In making adjustment, refer to 7-5. Adjustment
Related Parts Arrangement.
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
6) DVD reference disc
HLX-502 (J-6090-068-A) (dual layer)
HLX-503 (J-6090-069-A) (single layer)
SECTION 7

ELECTRICAL ADJUSTMENT

7-1. Power Supply Check

1. PS-408/413 Board

Mode
Instrument
EVER +5V check
Test point
Specification
POWER FAIL check
Test point
Specification
Checking method:
1) Confirm that each voltage satisfies the specification.
2. MB-80 Board
Mode
Instrument
–7V check
Test point
Specification
+12V check
Test point
Specification
+5.2V check
Test point
Specification
Checking method:
1) Confirm that each voltage satisfies the specification.
7-2. +5.2 V Adjustment
Mode
Measuring Insrument
Measurement Point
Adjusting Element
Specified Value
7-1
E-E
Digital voltmeter
CN954 1 pin
5 ±0.5V
CN954 2 pin
4V ~ 5V (POWER ON)
E-E
Digital voltmeter
W001 9 pin
–7 ±0.5V
W001 7 pin
+12 ±0.5V
W001 1, 2 pins
+5.2 ±0.2V
(SR-740/745 board)
E-E
Digital voltmerter
Pin !™ of CN201
VR 201
+5.2 ± 0.2 V
DVP-S3000