Audio Amplifier - Zenith H19F34DT Series Service Manual

1 2
G
F
AUDIO-AMP-RIGHT
AUDIO-AMP-LEFT
Audio Out R
Audio Out L
E
Audio In R
Audio In L
M-Out
M-OUT M-OUT
Composite Audio
( ( ( ( ( ( ( (
D
This schematic refers to
CL Chassis models
MUTE
H19F34DT
H20F34DT
H25F34DT
H25F39DT
H27F34DT
C
H27F39DT
H25F36DT
H27F36DT
H32F36DT
B
COMP-AUD
A
SR25-3828VD0171B
Audio Amplifier Circuit
3 4
C811
RM811
CM812
10µF 3.9K
RM812
2200pF
50V 1.8K
50V
C821 TP1404
RM821
3.9K
10µF
CM822
50V
2200pF
50V
R800
330
C800
100µF
25V
GND
C
R801 B
Q800
0TR945009AA
2.2K
E KSC945C-Y
GND
C826
RM825
( ( ( (
( ( ( (
3K
10µF CM827
50V 5600pF
50V
CRITICAL SAFETY COMPONENTS ARE IDENTIFIED BY THE LETTER "X" IN THEIR
COMPONENT DESIGNATORS. REPLACE ONLY WITH PART NUMBERS SPECIFIED.
5 6
+14V
AUD
TP800
C802
CM801 1000µF
IC800
0.01 25V
4921V00N11Q 25V
0ISA426100A
C813
4920V00010
100µF
TP801
LA4261
GND GND
16V
C815
RM813
3 9 10
470µF
150
C814 25V
1
0.1
50V
2
R814
5
3.3
C823
RM823
6 TP804
GND
150
100µF
4 8 7
16V
RM822
1.8K
GND
GND
STEREO AUDIO AMPLIFIER
C824
0.1
50V
R824
3.3
TP805
GND
MONO AUDIO AMPLIFIER
+13V
AUD
CM830 C829
0.01 470µF
25V 25V
IC801
GND GND
0ICTMSG002A
GND
TDA7267
C828
5 1 2W
4
0.1
RM826
50V 2
4.7K
3
7
6 8
GND GND GND
6-10
7 8
CN9S4
TP802
366-921C
1
2
3
4
R831 R830
15 15
1/2W 1/2W
GND
TP803
C825
470µF
25V
CN9M4
366-921B
1
2
3
ALL SYMBOLS WITH "M" ON THE DESIGNATOR
INDICATE SURFACE MOUNTED COMPONENT.
9 10
MATRIX/SPEAKER-OUT
M-OUT M-OUT