5-25
1-4.
COLOR ELECTRONIC VIEWFINDER SYSTEM
ADJUSTMENTS
Note 1:
The back light (fluorescent tube) is driven by a high volt-
age 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 dam-
ages caused by static electricity.
[Adjusting connector]
Most of the measuring points for adjusting the viewfinder system
are concentrated at FU-141 board CN259. Connect the measuring
instruments via the CPC-13 jig (J-6082-443-A). The following
table lists the pin numbers and signal names of CN259.
Address
Data
Remark
9B
4C
9C
00
9D
A0
9E
CE
9F
64
A0
24
A1
00
Fixed data
A2
80
A3
12
A4
0C
A5
25
A6
00
A7
08
A8
18
1. EVF Initial Data Input (1)
Mode
VTR stop
Signal
Arbitrary
Adjustment Page
C
Adjustment Address
9B to A8
Adjusting method:
1) Select page: 0, address: 01, and set data: 01.
2) Select page: C, and input the data in the following table.
Note:
To write in the non-volatile memory (EEPROM), press
the PAUSE button of the adjustment remote commander
each time to set the data.
3) Select page: 0, address: 01, and set data: 00.
Pin No.
1
2
3
4
5
6
7
8
9
10
Signal Name
SWP
AFC F0
BPF MONI
F0 ADJ RF IN
PB RF
REG GND
RF AGC OUT
VC RF SWP
EVF BL
EVF BL 4.6V
Pin No.
11
12
13
14
15
16
17
18
19
20
Signal Name
VCO
EVF VG
DV RF SWP
RF IN
CAP FG
RF MON
TMS
TCK
TDO
TDI
Fig. 5-1-13
FU-141 board
CN259
1
20
Cover
Screw driver (–)