Color Electronic Viewfinder System Adjustments; Evf Initial Data Input - Sony MVC-FD97 Service Manual

1-5. 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 LCD system are
concentrated in CN803 of the FC-85 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.
Pin No. Signal Name
1 FDDRF_B
2 FDDRF_A
3 INDEX
4 REG_GND
5 N. C.
6 TRACK_00
7 HSY
8 COM
9 VG
10 HI_UNREG
11 LANC_IN
Pin No. Signal Name
12 LANC_OUT
13 MAKER_RECOG
14 PF7
15 TXD
16 RXD
17 RESET
18 HI_VDD
19 EVF_BL+ (N.C.)
20 EVF_BL_4.75 (N.C.)
21 EVF_VG (N.C.)
22 EVF_VCO (N.C.)
Fig. 5-1-24

1. EVF Initial Data Input

Mode
Signal
Adjustment Page
Adjustment Address
Adjusting method:
1) Select page: 0, address: 01, and set data: 01.
2) Select page: D, and enter the data given in the following table.
Note: Press the PAUSE button each time the data are set, as the
data are written to non-volatile memory (EEPROM).
Address Data
1C 05
C0 67
C1 A0
C2 78
C3 48
C4 57
C5 88
C6 B0
C7 A8
C8 00
C9 A8
CA 88
CB A8
CC 88
CD 80
Processing after Completing Adjustments:
1) Select page: 0, address: 01, and set data: 00.
22
1
CPC cover
FC-85 board
CN803
5-37
CAMERA
Arbitrary
D
1C , C0 to CD
Remark
Fixed value
White Balance Adjustment
Fixed value
VCO Adjustment (NTSC)
Fixed value
Bright Adjustment (NTSC)
Contrast Adjustment (NTSC)
Bright Adjustment (PAL)
Contrast Adjustment (PAL)
VCO Adjustment (PAL)
Volt ohm meter
qd pin
4 pin
1
22
CPC-12 jig
(J-6082-436-A)