SERVICE MANUAL Colour Television - diagramas.diagram...

L+R LPF
8
IC Block Diagrams
IC001 < Audio AMP.> LA42072-E
VCC1 VCC2
IC501 < Vertical Output >LA78041
OUT1-
IN1-
IN1+
N.C.
N.C.
N.C.
8
6
5
7
13
3
TDA8944J
16
1
4
OUT1+
-
AMP
+
Pump
Up
Thermal
Protection
IN2-
IN2+
9
12
VCC
14
17
OUT2-
OUT2+
1
INVERTING
INPUT
Vcc
2
3
PUMP UP
OUT
GND
4
Ver. OUTPUT
5
6
OUTPUT
STAGE Vcc
7
NON INV.
INPUT
MODE
SVR
10
11
IC3701 < AUDIO Control > LV1116NV-TLM-E
36 35 34 33 32 31 30 29 28 27 26 25 24 23 22 21 20 19
1
2
3
4
5
DC
Pseud
Stereo
6
7
Bypass
Bypass
9
TONE CONT
ANALOG
SURROUND
(AViSS)
10
Matrix
Matrix
Bypass
SURROUND
SURROUND
Bypass
11
TOTAL
TOTAL
12
MUTE
MUTE
13
14
15
16
DATA
CONTROL
17
CONTROL
18
P-Stereo P-Stereo
DC
TONE CONT
MONO-SW
STANDBY/
MUTE LOGIC
20
kΩ
20
kΩ
SHORT CIRCUIT
AND
TEMPERATURE
PROTECTION
2 15
GND1
GND2
GND
INPUT-A(R)
INPUT-B(R)
INPUT-C(R)
LINE-OUT(R)
DC CUT(R)
ST-1
ST-2
TREBLE(R)
BASS-1(R)
BASS-2(R)
OUT(R)
EVR-IN(R)
EVR-OUT(R)
L+R OUT
VREF
VCC
ANALOG GND
INPUT-A(L)
INPUT-B(L)
INPUT-C(L)
LINE OUT(L)
DC CUT(L)
AviSS HPF
TREBLE(L)
BASS-1(L)
BASS-2(L)
OUT(L)
EVR-IN(L)
EVR-OUT(L)
12C-CLK
VDD 12C-DATA
ST-2
VSS
-6-