Evf Block Diagram - Sony DCM-M1 Service Manual

3-11. EVF BLOCK DIAGRAM

VF BOARD
(SEE PAGE 4-87)
H
REC/PB
CN4501
EVF_Y
BUFFER
F
19
Q4502, 4503
TO A/V DATA CONTROL,
VIDEO OUT
EVF_R-Y
(SEE PAGE 3-8) BUFFER
18
Q4504, 4505
EVF_B-Y
BUFFER
20
Q4506, 4507
204 mVp-p
2H
REC/PB
EVR
IC4502
EVF_SO
1 20 DI
PICTURE
EVF_SCK
2 19 CLK
COLOR
GAMMA1 9
EVF_SI
17 DO CONTRAST
3
EVF_EN_SWED
J
4 18 LD D_CLIP
SUB_BRT_B
TO SYSTEM CONTROL
(SEE PAGE 3-16) SUB_BRT_R 3
8 INV CURRENT
7 VCO
VCO
EVF_XVD
17
EVF_XHD
21
11 MHz
REC/PB
V
REC/PB
05
208 mVp-p
H
500 mVp-p
REC/PB
G/Y
8 AGC PICTURE
R/R-Y/CR
9 CLAMP MATRIX
GCA
B/B-Y/CB
10
AGC DET
AGC LEVEL
AGC 11 5
PICTURE
10 1
COLOR
2 6
GAMMA1
33
CONTRAST
5 40
BRIGHT
BRT 1 39
BLACK LIMIT
6 27
SUB BRT B
4 31
SUB BRT R
32
LCD TIMING GENERATOR
IC4602
SH3 34
SH1 32
SH0 30
42 CKI 38
SH2
41 CKO XCLP 35
SBLK 5
45 XVD 28
FRP
BLK
BLK 12
CLR
27 XHD
CLR 16
EN
EN 17
VST
VST1 18
VCK2
39 RPD VCK2 20
VCK1
VCK1 21
HST
HST1 22
2.16 Vp-p HCK2
HCK2 23
HCK1
HCK1 24
3.1 Vp-p
3.6 Vp-p
H
REC/PB
3-21
LCD DRIVER 2H
IC4501
CLAMP S/H GAMMA CLAMP INV
2H
14 28 29
45 46 47 48
DRIVE PULSE GENERATOR
IC4601
6 OSC 4
7 –
+
8
15
9 +
–
10 H
11
SHORT DISCHARGE
CIRCUIT 5 SWITCH
12
PROTECTION Q4601
2
2.5V REG
8 Vp-p 8 Vp-p
2H
REC/PB
CN4601
CN4701
G OUT
G
22 9 11
R OUT
R
20 11 10
B OUT
B
24
13 9
COM
7 12
BUF IN
15
BUF OUT
16
BLK BLK
15 8
HCK1 HCK1
17 1
HCK2 HCK2
19 2
8 Vp-p
HST HST
21 3
CLR CLR
23 4
REC/PB
EN EN
25 5
VCK1 VCK1
27 6
VCK2 VCK2
29 7
VST VST
30 13
EVF_12V
BL_LOW
14 21
FB
18 19
DRIVE_PULSE
6 25
12 Vp-p
CN4901
G
4
EVF_4.95V (–)
3
EVF_4.95V
FOR JIG
EVF_4.95V 2
VCO
1
SIGNAL PATH
VIDEO SIGNAL
CHROMA
PB
3-22
DCM-M1
CN4702
G
15
R
14
B
13
VF LCD
CN BOARD
COM (5.7V)
16
LCD4701
BLK
12
HCK1
11
HCK2
10
HST
9
CLR
7
EN
6
VCK1
5
VCK2
4
VST
3
VVDD (12V)
1
GRT (12V)
8
BL BOARD
(SEE PAGE 4-97)
BACK LIGHT
ND4701
T4701
SWITCHING
Q4701
EVF_BL_4.95V
Y