5-27
1-5.
LCD SYSTEM ADJUSTMENT
Before perform the LCD system adjustments, check that the specified
values of “VIDEO SYSTEM ADJUSTMENT” are satisfied.
Note 1:
The back light (fluorescent tube) is driven by a high voltage AC
power supply. Therefore, do not touch the back light holder to
avoid electrical shock.
Note 2:
When replacing the LCD unit, be careful to prevent damages
caused by static electricity.
Note 3:
Set the LCD BRIGHT (Menu) to the center.
[Adjusting connector]
Most of the measuring points for adjusting the LCD system are
concentrated in CN803 of FC-72 board.
Connect the Measuring Instruments via the CPC-12 jig (J-6082-
436-A).
The following table shows the Pin No. and signal name of CN803
of FC-72 board.
Pin No.
1
2
3
4
5
6
7
8
9
10
11
Signal Name
FDDRF B
FDDRF A
INDEX
REG GND
XCPC IN
TRAK 00
HSY
COM
VG
HI UNREG
LANC IN
Pin No.
12
13
14
15
16
17
18
19
20
21
22
Signal Name
LANC OUT
MAKER RECOG
PF7
TXD
RXD
RESET
HI VDD
EVF BL+
EVF BL 4.75 V
EVF VG
EVF VCO
Fig. 5-1-15.
FC-72 board
CN803
Insulator side
CPC-12 jig
22 pin flexible board
CPC lid
Screw driver (–)
1-5-1.
LCD Type Check
By measuring the resistor value between Pin
qd
of CN803 and Pin
4
of CN803, the type of LCD can be discriminated.
Resistor value
4.7 k
Ω
∞
10 k
Ω
22 k
Ω
LCD type
TYPE SH
TYPE CA
TYPE SA
TYPE ST
Adjustment
Perform “1-5-2. LCD SYSTEM
ADJUSTMENT (PK-50 board)”
Perform “1-5-3. LCD SYSTEM
ADJUSTMENT (PK-52 board)”
Содержание Mavica MVC-FD85
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Страница 40: ...MVC FD85 FD90 4 33 4 34 AV OUT KEY IN BACK LIGHT RGB TG PK 50 ...
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Страница 111: ... Take a copy of CAMERA COLOR REPRODUCTION FRAME with a clear sheet for use 137 FOR CAMERA COLOR REPRODUCTION ADJUSTMENT ...