Sony Glasstron PLM-S700E, Service Manual

Page: 21 / 94

3-9
• To adjust the PC block, set the
PC
mode on the set.
• For the PC block adjustment, input a PC RGB signals. (J101 on
the MA-324 board) The pin No. and signal name of J101 is
listed below.
Pin No. Signal Name Pin No. Signal Name
1 Red 9 Sync GND
2 Green 10 GND
3 Blue 11 GND
4 – 12 –
5 GND 13 H-Sync
6 RGB GND 14 V-Sync
7 RGB GND 15 –
8 RGB GND
[H-Sync Frequency Adjustment]
Condition:
Input signal No signal
Measurement point MA-324 board CN206 pin
7
Measuring equipment Frequency Counter
Adjustment page F
Adjustment address 56
Specification value 38 ± 1 kHz
Connection:
Adjustment Procedure:
(1)
Connect a frequency counter to the CN206 pin
7
on the
MA-324 board.
(2) Set (or confirm) data: 01 to page: 0, address: 01.
(Cancel F page protect)
(3) On page: F, address: 56, change data with the PLAY and
STOP buttons and press the PAUSE button to write data so
that the frequency counter reading satisfies the specification
value.
Adjustment and Adjustment Parts: MA-324 board (see page 3-15)
PC BLOCK
[Signal Center Level Adjustment]
Preparation:
Page Address Data Remarks
F 7B 1F BRIGHT (Center)
F 11 03 BRIGHT (Fixed)
Condition:
Input signal SVGA60 Hz: All Black
Measurement point MA-324 board CN206 pin
3
Measuring equipment Oscilloscope
Adjustment page F
Adjustment address 74
Specification value 7.0 ± 0.1 V
Connection:
Adjustment Procedure:
(1)
Connect a frequency counter to the CN206 pin
3
on the
MA-324 board.
(2) Set (or confirm) data: 01 to page: 0, address: 01.
(Cancel F page protect)
(3) On page: F, address: 74, change data with the PLAY and
STOP buttons and press the PAUSE button to write data so
that the
E
level of waveform on the oscilloscope.
Adjustment and Adjustment Parts: MA-324 board (see page 3-15)
CN206 pin
7\
(INT H)
MA-324 Board
Frequency Counter
+
–
+
–
Oscilloscope
(DC range)
CN206 pin
3
(SIG G 1)
CN206 pin
9
(GND)
MA-324 Board
E
Signal
Center
GND