Large Signal Panel: Audio Amplifier + Mono Sound Processing - Philips L01.1E Service Manual

Schematics and PWB's

Large Signal Panel: Audio Amplifier + Mono Sound Processing

1 2 3
AUDIO_AMPLIFIER
* 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 *
A5-43
2910 3N3 50V X X X
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
L01.1E 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
30
6 7 8
AudioSupplyGnd_FB
5 1
A1
2
5V2
CH1+
A2
4 5V2 9901
*
CH1-
A3
CH2- 10 5V2 * 9902
A4
12
CH2+ 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
050601
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