Sony PFM-42B2, Service Manual

Page: 122 / 138

7-20
PFM-42B2/42B2E
7-20
2
3
4
5
A B C D E F G H
1
(1/13)
24LC21AT/SN (IC103, IC4013)
5
7
6
8
4
1 2 3
I/O
CONTROL
LOGIC
MEMORY
CONTROL
LOGIC
XDEC
EEPROM
ARRAY
PAGE LATCHES
H/V
GENERATOR
SENSE AMP
R/W CONTROL
YDEC
SDA
VCLK
SCL
VCC
VSS
NC NC NC
(1/13)
BA7657F (IC6905, IC6907)
21
20
19
18
17
16
15
14
13
24
23
22
4
5
6
7
8
9
10
11
12
1
2
3
SYNCSEOA
DET
LOGIC
1
2
1
2
1
2
1
2
1 2
R1
GND
G1
GND
B1
GND
R0
GND
G0
GND
B0
V1
HI
HO
H
R
5V
G
SOGIN
SYNC
CONT
B
V
VO
(2/13)
CXA1211M (IC1000, IC1001, IC1005)
IN 1
1 2 3 4
8 7 6 5
VCA 1
VCA 2
CONT 1 OUT 1 GND
Vcc IN 2 CONT 2 OUT 2
(9/13)
CXA1739S (IC1030)
1 48
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
CLAMP
SHP
AMP
CLAMP
SHP
AMP
PULSE
GENERATOR
VIDEO
SW
MATRIX
AXIS SW
HUE & COLOR
PROCESS
PIC
GAMMA
CONTROL
AUTOMATIC
CUTOFF
CONTROL
PROCESS
47
46
45
44
43
42
41
39
38
36
35
34
33
32
31
30
28
27
26
25
29
37
40
R-Y HUE
b-Y
Y
GND 1
SH OUT
SH CONT
BRIGHT
SH IN
AXIS
R IN
G IN
B IN
OSD R
OSD G
OSD B
YS
YM
VP
GND 2
HP
MUTE
V BLK
CLP 2
CLP 1
COLOR
PIC
GAMMA
R DRIVE
V
CC
R V
CC
R OUT
R GND
R S/H
R C/O
G V
CC
G OUT
G GND
G S/H
G C/O
G DRIVE
B V
CC
B OUT
B GND
B S/H
B C/O
B DRIVE
IK
(8/13)
CXA1860Q (IC4001)
24
25
26
27
28
29
30
31
32
16
15
14
13
12
11
10
9
23 22 21 20 19 18 17
1 2 3 4 5 6 7 8
S2
Y_SEC
Y_MAT
GND
C_S
RY_SEC
BY_SEC
V
CC
R
Y_MA
T
BY_MA
T
SCP
C_BIAS
C_BY C_R
Y
ID
SECAM
C_CLP
C_OUT
VPX
C_IN
CSW_OUT
RESET
Y_OUT
Y_CLP
C_Y Y_GAIN Y_IN YSW_OUT Y_BIAS VIDEO S1 Y_S
INPUT
&
SWITCH
AMP
&
CLAMP
ID & SCP
SELECTOR
INPUT
&
SWITCH
LINE SWITCH
^
CLAMP
SWITCH AMP
ID
&
SECAM
(10/13)
CXA2119M (IC1035)
28 27 26 25 24 23 22 21 20 19 15 18 17 16
1 2 3 4 5 6 7 8 9 10 14 11 12 13
6dB
CLP
6dB
CLP
SIG3 IN SEL2 SIG2 IN SEL1 SIG1 IN VCC SIG OUT YM YS GND Cr OUT Cb OUT Y OUT NC
Y1 IN
Cb1 IN
Cr1 IN
Cb2 IN
CbCLP
Cr2 IN
CrCLP
INPUT SEL
Y2 IN
CLP
R IN G IN
B IN
YCLP
6dB
CLP
6dB 6dB 6dB
CLP CLP CLP
6dB
CLP
6dB
CLP
6dB
CLP
Cr Cb Y
0/—6dB
SW
6dB
RGB YCbCr
MATRIX
(8/13)
CXD2300Q (IC4003)
2
3
4
5
6
7
8
10
11
12
9
30
31
32
1
Clock generator
Upper
data
latch
Lower
data
latch
Lower encoder
(4 BIT)
Lower encoder
(4 BIT)
Upper encoder
(4 BIT)
Lower sampling
comparator (4 BIT)
Lower sampling
comparator (4 BIT)
Upper sampling
comparator (4 BIT)
Reference supply
26 27 29
28
25
24
23
22
21
20
19
18
17
16
15
14
13
DV
SS
CCP VREF CLE
VRBS
VRB
AV
SS
AV
SS
V
IN
AV
DD
AV
DD
VRT
VRTS
AV
DD
CLP
TEST
(V
DD
or V
SS
)
(V
DD
or V
SS
)
TEST
OE
DVss
D0 (LSB)
D1
D2
D3
D4
D5
D6
D7 (MSB)
DV
DD
TEST (DV
DD
)
CLK
TEST (OPEN)
NC
B B