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Schematics and PWB's
Mono Carrier: Audio Amplifier + Mono Sound Processing
1
2
3
AUDIO_AMPLIFIER + MONO SOUND PROCESSING
*
9903
*
3908
MainAux_FB
2R2
9904
VlotAux+5V
2911
*
10n
*
4902
*
Main_OutL
3903
4901
A8-45
15K
A9-45
0271
A11-45
1
2
*
2910
3
10n
4
*
4904
FOR ITV ONLY
*
Main_OutR
3905
4903
A9-46
15K
A11-46
Tilt
3172
A15-74
FOR ITV ONLY
6K8
3922
Treble_Buzzer_Hosp-app
3921
330K
A7-6
330K
3923
330K
Volume|Mute
A7-15
Diversity Table A8
Main_OutL
A8-45
MONO|AM_MONO_SOUND
2946
Item
Description
*
2910
3N3 50V
X
X
X
A5-43
1u
2911
3N3 50V
X
X
X
3172
1/6W 8K6
X
3905
3K3
X
X
X
3908
2R2
4901
Jumper
X
X
X
4902
Jumper
4903
Jumper
X
X
X
4904
Jumper
FOR COMPAIR ONLY
4905
Jumper
0267
4921
Jumper
SDA
1
7901
IC AN7522N
X
X
X
A7-14
SCL
2
7902
IC AN7523N
A7-13
7943
TRA BC847B
3
9901
Wire
X
X
9902
Wire
X
X
9903
Wire
X
X
X
1
2
3
L01H.1E
7.
4
5
6901
3901
*
56K
BAS216
*
7901
FOR ITV ONLY
AN7522N
0275
2904
1V4
6 CH1-IN
1u
1V4
8 CH2-IN
0V3
9 VOL
2906
1u
3
AudioSupplyGnd_FB
*
7902
AN7523N
6
CH1-IN
9
VOL
GNDINP
+8V
7943
BC847B
A1
A2
A3
A4
1V / div DC
1V / div DC
1V / div DC
1V / div DC
500us / div
500us / div
500us / div
500us / div
4
5
27
6
7
8
AudioSupplyGnd_FB
5
1
A1
2
5V2
CH1+
A2
4
5V2
9901
*
CH1-
A3
CH2-
10
5V2
*
9902
A4
CH2+
12
5V2
7
11
AudioSupplyGnd_FB
5
1
STB
VCC
2
CH1+
4
CH1-
NC
GNDCH1
7
8
3
AudioSupplyGnd_FB
*
7901
STEREO
AN7522N
MONO
AudioSupplyGnd_FB
6
7
8
9
10
AmpOutR+
A12-70
AmpOutL+
A12-71
AmpOutR_Pos
A12-72
AmpOutL_Pos
A12-73
0246
AmpOutL_Neg
5
AmpOutL_Pos
TO 0254
4
OF
3
AmpOutR_Pos
2
AmpOutR_Neg
1
0281
AudioSupplyGnd_FB
4
TO
3
VOICE
CONTROL
2
1
0280
4
3
2
1
SPEAKERS
7902
2 X 5W
16 Ohm
2 X 3W
8 Ohm
AN7523N
2 X 1W
8 Ohm
CL 16532020_034.eps
030901
9
10
0246 B9
0267 G3
0271 C2
0275 B4
0280 D9
0281 D9
2901 B6
2902 B7
2903 B5
2904 B4
A
2905 C5
2906 C4
2907 D5
2908 E5
2910 C3
2911 B3
2946 F4
2947 C8
2948 C9
2949 C9
2950 C9
B
3172 D2
3901 B4
3902 B5
3903 B3
3904 C3
3905 C3
3906 D3
3907 E4
3908 B3
3921 D3
3922 D3
3923 D3
C
3948 E4
3949 F4
3950 E4
3951 F4
4901 B2
4902 B3
4903 C2
4904 C3
4905 F2
4921 B4
6901 B5
7901 B6
D
7902 D6
7943 F4
9901 C8
9902 C8
9903 A3
9904 B3
E
F
G
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