Sony PFM-42B1 Service Manual page 143

24LC21T/SN (IC103, IC4013)
1
SDA 5
I/O MEMORY
VCLK 7 CONTROL CONTROL XDEC
LOGIC LOGIC
6
SCL
VCC 8
VSS 4
2
1 2 3
NC NC NC
BA7657F (IC6905, IC6907)
R1 1 24 HI
GND HO
2 1 2 23
G1 3 22 H
1
GND 4 21 R
2
3
B1 5 DET 20 5V
GND 6 19 G
1
7 18
R0 SOGIN
2
SYNCSEOA
8 17
GND SYNC
G0 9 LOGIC 16 CONT
1
10 15
GND B
2
1
B0 11 14 V
2
12 13
V1 VO
4
CXA1211M (IC1000, IC1001, IC1005)
Vcc IN 2 CONT 2 OUT 2
7
8 6 5
VCA 2
VCA 1
1 2 3 4
IN 1 CONT 1 OUT 1 GND
5
A B
CXA1739S (IC1030)
H/V
R-Y 1
GENERATOR
b-Y 2 CLAMP
Y 3
EEPROM
ARRAY
GND 1 4
PAGE LATCHES
SH OUT 5
SHP
AMP
SH CONT 6
YDEC
BRIGHT 7
SH IN 8
SENSE AMP
AXIS 9
R/W CONTROL
R IN 10
G IN 11 CLAMP
B IN 12
OSD R 13
OSD G 14
OSD B 15
YS 16
SHP
AMP
YM 17
VP 18
GND 2 19
PULSE
GENERATOR
HP 20
MUTE 21
V BLK 22
CLP 2 23
CLP 1 24
CXA1860Q (IC4001)
24 23
S2 25
Y_SEC 26
V 27
CC
Y_MAT 28
GND 29
C_S 30
INPUT
RY_SEC 31
&
SWITCH
BY_SEC 32
1 2
C
B B
48 HUE
HUE & COLOR
47 COLOR
PROCESS
46 PIC
45 GAMMA
44 R DRIVE
MATRIX
AXIS SW
43 V
CC
42 R V
CC
41 R OUT
40 R GND
39 R S/H
38 R C/O
VIDEO
37 G V
SW CC
36 G OUT
35 G GND
34 G S/H
33 G C/O
PIC
AUTOMATIC
32 G DRIVE
CUTOFF
CONTROL
31 B V
CC
PROCESS
30 B OUT
29 B GND
GAMMA
CONTROL
28 B S/H
27
B C/O
26 B DRIVE
25 IK
22 21 20 19 18 17
16 Y_CLP
AMP
&
INPUT
CLAMP
& 15 Y_OUT
SWITCH
ID & SCP 14 RESET
SELECTOR 13 CSW_OUT
SWITCH 12
AMP C_IN
11 VPX
LINE SWITCH
10 C_OUT
^
CLAMP
9 C_CLP
ID
&
SECAM
3 4 5 6 7 8
8-20 8-20
D E
CXA2119M (IC1035)
28 27 26 25 24 23 22 21
6dB
0/—6dB
SW
6dB 6dB 6dB 6dB 6dB 6dB
CLP CLP CLP CLP CLP CLP
1 2 3 4 5 6 7 8
CXD2300Q (IC4003)
DV
SS
28
30
OE
31
DVss
D0 (LSB) 1
D1 2
Lower encoder Lower sampling
Lower
(4 BIT) comparator (4 BIT)
data
D2 3
latch
4
D3
Lower encoder Lower sampling
(4 BIT) comparator (4 BIT)
D4
5
D5 6
Upper
data
Upper encoder Upper sampling
7 latch
D6
comparator (4 BIT)
(4 BIT)
8
D7 (MSB)
DV 10
DD
TEST (DV ) 11
DD
CLK 12 Clock generator
TEST (OPEN)
9
32
NC
29 27
CLE CCP VREF
F G
20 19 18 17 16 15
6dB 6dB 6dB
Cr Cb Y
RGB YCbCr
MATRIX
CLP CLP CLP
9 10 11 12 13 14
VRBS
Reference supply 25
24
VRB
23 AV
SS
22 AV
SS
21
V
IN
20 AV
DD
19 AV
DD
18 VRT
17 VRTS
16
AV
DD
15
CLP
TEST
14
(V DD or V SS )
TEST
13
(V or V )
DD SS
26
PFM42B1, PFM-42B1E
H