Sony MDDISCAM DCM-M1, Руководство по обслуживанию

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