Electrical Adjustment; Power Supply Check (Mb-78 Board); Leds, Display Check - Sony DVP-K800D Service Manual

In making adjustment, refer to 6-4. Adjustment Related
Parts Arrangement.
This section describes procedures and instructions necessary for
adjusting electrical circuits in this set.
Instruments required:
1) NTSC 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-501 (J-6090-071-A) (dual layer)
HLX-503 (J-6090-069-A) (single layer)
7) Extension cable
J-6090-079-A 20P
MB-78 (CN601) ↔FL-106 (CN101)
SECTION 6

ELECTRICAL ADJUSTMENT

6-1. POWER SUPPLY CHECK
Mode
Instrument
EVER +5.3V Check
Measurement Point
Specification
REG + 3.3V Check
Point
Specification
REG +5.2V Check
Point
Specification
M +12V Check
Point
Specification
AU +12V Check
Point
Specification
AU –12V Check
Point
Specification
Checking method:
1)

6-2. LEDs, DISPLAY CHECK

Checking method:
1)
2)
3)
• All LEDs are lit
6-1
(MB-78 board)
E-E
Digital Voltmeter
CN001 pin 3
5.4 ± 0.2V
CN001 pin 5
3.3 ± 0.2V
CN001 pins 7, 8
5.2 ± 0.2V
CN002 pin 2
+1.0
+12
–2.0
CN002 pin 7
+1.0
12.0
–2.0
CN002 pin 5
+2.0
–12
–1.0
Confirm that each voltage satisfies the specification.
Press [TITLE], [CLEAR] then [POWER] keys continuously
on the remote commander to enter the test mode in the standby
coudition.
Press [5] key on the remote commander.
Then following LEDs and display tube are lit.
Turns on
Turns on
DVP-K800D
V
V
V
Turns on Turns on