Electrical Adjustment; Power Supply Check; Hs-930Sf/930Sh/930Su Board - Sony DVP-S300 Service Manual

In making adjustment, refer to 7-4. 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
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. HS-930SF/930SH/930SU Board

Mode
Instrument
+5.2V Check
Test point
Specification
+3.3V Check
Test point
Specification
EVER +5V Check
Test point
Specification
P_CONT Check
Test point
Specification
AU +12V Check
Test point
Specification
AU –12V Check
Test point
Specification
–12V Check
Test point
Specification
MTR +12V Check
Test point
Specification
Checking method:
1) Confirm that each voltage satisfies the specification.
7-1
DVP-S300/S305/S315
E-E
Digital voltmeter
CN201 1 pin
5.2 V ± 0.2 V
CN201 4 pin
3.3 V ± 0.2 V
CN201 6 pin
5.4 V ± 0.2 V
CN201 8 pin
4V – 5 V
CN201 9 pin
+1.0
12 V V
–2.0
CN201 !¡ pin
+2.0
–12 V V
–1.0
CN201 !™ pin
+2.0
–12 V V
–1.0
CN201 !¢ pin
–12 V +1.0 V
–2.0