Sony MVC-FD75 Service Manual page 67

1-4. LCD SYSTEM ADJUSTMENTS
Note 1: A back light (fluorescent tube) is driven with high volt-
age AC power. Therefore, do not touch the back light
directly, otherwise you will feel an electric shock.
Note 2: Take an extreme care not to destroy the LCD unit by static
electricity when replacing it.
[Adjusting connector]
Most of the measuring points for adjusting the LCD system are
concentrated in CN 802 of the PK-59 board. Connect the Measuring
Instruments via CPC-9 jig (J-6082-393-C). The following table
shows the Pin No. and signal name of CN802.
Pin No. Signal Name
1 PANEL_B
2 PANEL_G
3 PANEL_R
4 REG_GND
5 JIG_XHD
6 JIG_XVD
7 HSY
8 COM
9 VG
CPC-9 jig (J-6082-393-C)
(18p flexible board)
(Note)
Pin No. Signal Name
10 UNREG
11 LANC_IN
12 LANC_OUT
13 XPWR_SW
14 MAKER_RECOG
15 INDEX
16 TRACK_00
17 NC
18 FDD_RF
CPC
cover
18
1
PK-59 board
CN802
Fig. 5-1-14
Alignment disk (Disk-1, Disk-2)
(A set of alignment disks consists of two disks as a pair.)
Disk-1: 8-967-990-01
(TFD2-1 (+)) (+17.5 µm)
Disk-2: 8-967-990-11
(TFD2-2 (–)) (–17.5 µm)
[Common signals in the disks]
Data Code
MVC-001C.JPG
MVC-002M.JPG
MVC-003V.JPG
MVC-004W.JPG
MVC-005H.JPG
MVC-006T.JPG
MVC-007R.JPG
MVC-008G.JPG
MVC-009B.JPG
MVC-010D.JPG
MVC-011N.JPG
• Contents of alignment disk-1
(Common signal) + (+17.5 µm alignment)
• Contents of alignment disk-2
(Common signal) + (–17.5 µm alignment)
5-16
Signal
Color bars
Monoscope
V. COM adjustment signal
100% white
50% white
Stair-step signal of 10 steps
Red single color
Green single color
Blue single color
Camera color bars
Camera monoscope