Sony BKM-142HD Maintenance Manual page 76

BA7046F (IC181)
1
PHASE
PHASE
1 H. OSC 8
H. OSC
COMP
COMP
HD 2 7
VCC
SYNC
SYNC 3 6 VIDEO
SEPA
4 V. SEPA
VD
5
GND
2
CXA1211M (IC261, 421)
Vcc IN 2 CONT 2 OUT 2
8 7 6 5
VCA 2
VCA 1
1 2 3 4
IN 1 CONT 1 OUT 1 GND
3
CXD2309Q (IC122)
(LSB) R0 1
4LSB'S
2 CURRENT
R1
CELLS
3
R2
R3 4
R4 5
6LSB'S
LATCHES
CURRENT
R5 6 DECODER
CELLS
7
R6
R7 8
R8 9 DECODER
CLOCK
GENERATOR
10
(MSB) R9
31
RCK
(LSB) G0 11
4LSB'S
G1 12 CURRENT
CELLS
4
G2 13
G3 14
G4 15
6LSB'S
LATCHES
G5 16 CURRENT
DECODER
CELLS
G6 17
G7 18
G8 19 DECODER
CLOCK
20 GENERATOR
(MSB) G9
32
GCK
21
(LSB) B0
4LSB'S
22 CURRENT
B1
CELLS
B2 23
B3 24
25
B4
6LSB'S
LATCHES
26 CURRENT
B5 DECODER
CELLS
B6 27
B7 28
B8 29 DECODER
CLOCK
5
30 GENERATOR
(MSB) B9
33
BCK
DV 48
DD BIAS VOLTAGE CURRENT CELLS
GENERATOR (FOR FULL SCALE)
VB 35
DV SS 34
A B
BW
BKM-127W
M51279FP-ETP (IC301)
31 30 29 28 27 26 25 24 23 22
ID KILLER R – Y B – Y
32 SYNC SEP COMP COMP
DET DET DET
1
BURST GATE
270°
90°
PULSE
2
COMP
ACC DET
ID PULSE
NTSC 90° 180°
3
AMP–2
PAL
4
PAL 1/4
90°
TINT
APC
BRUST GATE
AMP–1 DET 4F SC VCXO
VREF
5 6 7 8 9 10 11
MB88346BPFV (IC504)
VSS 1
1
D0-D7
8 BIT 8 BIT
D/A CONVERTER LATCH D0-D7
A03 2
2 D0-D7
8 BIT 8 BIT
D/A CONVERTER LATCH D0-D7
A04 3
3
8 BIT 8 BIT
43 AV
SS D/A CONVERTER LATCH D0-D7
42 RO
A05 4
4
8 BIT 8 BIT
D/A CONVERTER LATCH D0-D7
A06 5
5
8 BIT 8 BIT
D/A CONVERTER LATCH D0-D7
45 AV
SS
44 GO
6
A07
6
D0
8 BIT 8 BIT
D/A CONVERTER LATCH D0-D7 D1
D2
A08 7
D3
7
D4 D0-D7
8 BIT 8 BIT
D0-D7
D/A CONVERTER LATCH D5
47 AV
SS
D6
46
BO
A09 8
D7
8 D8 D0-D7
41 AV
DD 8 BIT 8 BIT
D/A CONVERTER LATCH D0-D7 D9
40 AV
DD ADDRESS
DECORDER
39 1-12
AV DD
D10
9
A010
D11
38 VG
37
VREF
36 VDD 10
IREF
7-22
C D
BW
BKM-127W
MB89613M09-EG1 (IC501)
X0 23
OSC
21
X1 24
20
CLOCK CONTROL
19
RST 20 RESET(WDT)
18
P00/AD0 49
15
P01/AD1 48
P02/AD2 47
P03/AD3 46
P04/AD4 45
P05/AD5 44
14
P06/AD6 43
P07/AD7 42
C-MOS I/O PORT
P10/A08 41
P11/A09 40
P12/A10 39
P13/A11 38
13
P14/A12 37
P15/A13 36
12
P16/A14 35
P17/A15 34
MOD0 21
EXT. BUS INTERFACE
MOD1 22
P27/ALE 26
P26/RD 27
P25/WR
28
C-MOS OUT PORT
P24/CLK 29
P23/RDY 30
P22/HRQ 31
32
P21/HAK
P20/BUFC 33
RAM
20 GND
12 CPU
F MC-8L 2
8 BIT 8 BIT
LATCH D/A CONVERTER
ROM
19 A02
11
8 BIT 8 BIT
LATCH D/A CONVERTER
MC74HC4538AF (IC182)
18 A01
1
X1
2
X0
OPEN
Y1 3
17 DI
YC 4
Y0 5
OPEN
EN 6
16 CLK VEE 7
GND 8
OPEN
15
LD
NJM2233BM
(IC1, 201, 21, 302, 31, 402, 451, )
14 D0
10
8 BIT 8 BIT
LATCH D/A CONVERTER
1
2
13 A012
9
8 BIT 8 BIT
LATCH D/A CONVERTER 3
BIAS
NC 4
12 A011
11 VCC
7-22
E
TDA4665T (IC401)
DIGITAL
TIME BASE TIMER SUPPLY
VP2 1
8 BIT
59 P37/PTO
PMW TIMER
8 BIT 58 P36/WTO N.C 2
PULSE WIDTH SIGNAL
57 VCC
COUNT TIMER CLAMPING
56 P35/PWC
LINE
16 BIT
MEMORY
DGND 3
55 P34/EC
TIMER COUNTER
pre-amplifiers
54 P33/SI1
8 BIT
53 P32/SO1
SERIAL 1
GND 4
52 P31/SCK1
SIGNAL
C-MOS I/O PORT 51
P30
CLAMPING
50 VSS
PULSE IN 5 LINE
P47/S12
8BIT 3 MEMORY
2 P46/SO2
SERIAL 2
1 P45/SCK2
NC 6
BUZZER OUT
64 P44/BZ
FREQUENCY
SANDCASTLE DIVIDER
63 P43 PHASE
DETECTOR BY 192
DETECTOR
62 P42
OPEN DRAIN IC
7
I/O PORT 61 P41
LP
60 P40
P50
4 GND 8
P51
5
P52
6
OPEN DRAIN
7 P53
OUT PORT
8 P54
9 P55
10 P56
11 P57
12 VCC
13 N.C.
X25040S-C7000 (IC503)
14 VSS
15 P60/INT0
EXT. INTERRUPUT 16 P61/INT1
17 P62/INT2
18 P63/INT3
X DECODE
19 WRITE
P64
I/O PORT STATUS LOGIC
PROJECT
REGISTER
LOGIC
CS 1
COMMAND
DECODE
SO 2 AND
CONTROL
LOGIC
WP 3
WRITE
CONTROL
AND
16
VDD
TIMING
LOGIC
15
XC
4
VSS
14 ZC
13 Z1
12 Z0
11 AZ
10 AX
9 AY
GND
5
6
VCC
7
8 NC
F G
+
16 (R-Y)IN
–
15 NC
SAMPLE
AND- LP
+
14 (B-Y)IN
HOLD –
addition output
stages buffers
13 NC
SAMPLE +
12 (B-Y)OUT
–
AND- LP
HOLD
+
11 (R-Y)OUT
3MHz shifting clock –
10
A GND
6MHz DIVIDER
CCO BY 2
ANALOG
9 VP1
SUPPLY
512 BYTE
ARRAY
32
32X32
8 VCC
32
32X32
64
64X32
4 8
Y DECODE
7
HOLD
DATA REGISTER
6
SCK
5 SI
BKM-120D/127W/129X/142HD
H