3-24
• To adjust the PC block, set the PC mode on the set.
• For the PC block adjustment, input a PC RGB signals to J101
on the MA-324 (H) 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 (H) 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 (H) 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 Connection Location: MA-324 (H) board
(see page 3-30)
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 (H) 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 (H) 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 Connection Location: MA-324 (H) board
(see page 3-30)
CN206 pin
7
(INT H)
MA-324 (H) Board
Frequency Counte
+
–
+
–
Oscilloscope
(DC range)
CN206 pin
3
(SIG G 1)
CN206 pin
9
(GND)
MA-324 (H) Board
E
Signal
Center
GND
w
w
w
.
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i
a
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y
u
1
6
3
.
c
o
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Q
Q
3
7
6
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1
5
1
5
0
9
9
2
8
9
4
2
9
8
T
E
L
1
3
9
4
2
2
9
6
5
1
3
9
9
2
8
9
4
2
9
8
0
5
1
5
1
3
6
7
3
Q
Q
TEL 13942296513 QQ 376315150 892498299
TEL 13942296513 QQ 376315150 892498299
http://www.xiaoyu163.com
http://www.xiaoyu163.com
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