Sony FD Trinitron KV-28DS65U Service Manual page 34

5-1. BLOCK DIAGRAMS (2)
CN1807
A( )
A1 SDA-DTU 2/2
B1
SCL-DTU
A2 FE RESET
B2 PT EN
PT CK
A3
B3 PT SRT
A4 TS D7
TO A1 BOARD
TS D6
B4
CN101
A5 TS D5
TS D4
B5
A6 TS D3
TS D2
B6
TS D1
A7
B7 TS D0
CN1803
A5 V-PULSE
H REF
A6
CLK
A7
A8 Y7 FROM Q
B8 Y6 TO Q
A9 Y5 TO Q
B9 Y4 TO Q
Y3 TO Q
A10
B10 Y2 TO Q
A11 Y1 TO Q
B11 Y0 TO Q
A12 C3 TO Q
TO B BOARD
B12 C2 TO Q
CN302
C1 TO Q
A13
B13 C0 TO Q
A15 MONI C
A16 MONI Y
BLK
A17
TO A BOARD
A18 R
(1/2)
G
A19
A20 B
B4 DIGI EN
COMB SW
B20
PAL/NT
A14
CN1804
B1 Y OUT
Y
A2 B-Y OUT BUFFER
B-Y
Q1817-Q1822
B2 R-Y OUT
R-Y
TO B BOARD
TO A BOARD
CN301
B3 2VP OUT
2VP
A4 2HP OUT
2HP
B20 D-PIC
IC1810
LOGIC GATE SWITCH/BUFFER
1
SWITCH
4
Q1804,1805
2
IC1805
LOGIC GATE SWITCH/BUFFER
A BOARD
1
SWITCH
4
(1/2) Q1802,1803
D ON/OFF
2
IC1803
LOGIC GATE SWITCH/BUFFER
2
4
1
IC1801
LOGIC GATE SWITCH/BUFFER
1
4
2
IC1802 IC1806 IC1804
ANALOGUE MULTIPLEXER
LOGIC GATE SWITCH/BUFFER LOGIC GATE SWITCH/BUFFER
2 2
4 9
4
1 1
IC1137
LOGIC GATE SWITCH BUFFER
2
4 12
1
IC1136
IC1132
LOGIC GATE SWITCH BUFFER
PORT EXPANDER
2 11
4
1
TV ID 9
(1/2)
A0
A1
TO A BOARD
(1/2)
A2
A3
35
SDA-DTV A4
B4
SCL-DTV
FE RESET A5
PT EN B6
PT CK
A7
PT SRT B7
TS D7 A8
TS D6
B8
TS D5 A9
TS D4
B9
TS D3 A10
ALT 5.0V
TS D2
B10
TS D1
A11
TO N BOARD
TS D0 B11
CN3101
+40V
V PULSE A20
H REF B19
13.5MHZ A19
Y7 A15
Y6 B15
Y5
A16
Y4
B16
Y3 A17
Y2
B17
Y1
A18
Y0 B18
UV3 A13
UV2 B13
UV1 A14
UV0 B15
DIG EN B5
13
DTVL
B24
DTVR A25
TO A BOARD
(1/2)
DTVV
B25
CN1808
A3
TO A1 BOARD
CN102
AGC OUT A1
CN1103
4
TO A BOARD
DISABLE
CN1102
(1/2)
4
AC ON/OFF
4
13
5 IC1126
TO A BOARD
PORT EXPANDER
(1/2)
6
INTERRUPT
11
7
CN902
1 R IN
TO J BOARD 3 L IN
CN4205
2
4
CN903
S
1 C OUT
4
3 V OUT
3
TO J BOARD
CN4202
L OUT
5
7 R OUT
CN1702
3 V PIN +
TO
4
V PIN -
D1 BOARD
CN1503
5 Q.P -
6 Q.P +
CN1701
VM BUFFER
TO A BOARD 1 VM IN
VM AMP VM OUT
Q1703,1704
CN2504 Q1701,1702 Q1707,1708
Q1705,1706
(
VM
VM AMP, Q.P
36
J901
2
1
VIDEO
L
( )
R
H
FRONT INPUT
J902
CN1703
1
2
11
12
QP
3
Q.P - 4
QP
Q.P + 5
6
9
VM
10
NECK
ASSY
)