Mono Carrier: Nicam + 2Cs + Btsc (A9) - Philips L01.2A AB Service Manual

Circuit Diagrams and PWB Layouts
Mono Carrier: NICAM + 2CS + BTSC
1 2
A9 NICAM + 2CS + BTSC (STEREO/SAP) DECODER
A
+5VA
VlotAux+5V
VlotAux+5V
B
C
A11
3834
MONO|AM_MONO_SOUND
A9-43
680R
3835
100R
SC1_LIN
D A10-47
SC1_RIN
A10-48
+5VA
A13
2855 2856
QSS_AM_DEM_OUT
A5-42
39p 12p
E
F
2859
FMR
A5-44
1n
5833
VlotAux+5V +5VA
3u3
G
1 2
L01.2A AB 7.
3 4 5
2843
10u
2842
100n
6831
BAS216
3831
47K
2897
330p
34 50 17 16
2V6 43
VREFTOP
SOUND IF
1V5 47
ANA_IN1+
DEMODULATOR
2833
& NICAM
1V5 48
ANA_IN1-
DECODER
47p
MONO
2847
3V8 44
MONO-IN
330n
2848
3V8 41
SC1-IN-L
1n
SCART 1
3V8 42
SC1-IN-R
39
SC2-IN-L
SCART 2
40
SC2-IN-R
7835 7834
BC847B BC847B
4V9 4V9
4V8 0V
4V1 4V1
2858
1n
12 18 19
*
A5
*
3842
22K
0306
1
2
TO L01-DVD CONN.
3
4
0307
TO 0308 OF
1 R_OUT
REAR IO SCART
2 L_OUT
3 4 5
EN 26
6 7
2895
560p
2894
220p
2898
10n
5832
2840 6u8
100n
7831
MSP34X5G
36 45 46 35 33 29 23 20 6 5 7 8 51 52
AUDIO PLL
25 1V8
DACM-L
FM1/AM D/A
LOUDSPEAKER L
FM2 LOUDSPEAKER
24 1V8
NICAM A DACM-R
NICAM B D/A
2
LOUDSPEAKER R
3 0V
IDENT
DSP 4 0V
9
SCART-L
A/D
10
TP
A/D SCART-R
11
SCART-L D/A
13
SCART-R
D/A
14
15
26
31 3V
SC1-OUT-L
SCART
SCART Switching Facilities
30 3V
SC1-OUT-R
NC
21 22 27 28 32 37 38 49 1
A6 A7 A11
2V / div DC 2V / div DC 1V / div DC
200us / div 200us / div 500us / div
6 7
8 9 10
2838
A6
RES
3832
SCL
100R
2839
A7
RES
3833 SDA
100R
+8V
1831
18M432
HC-49/U
A10
Main_OutL
2849
A9
1n
Main_OutR
2850
1n
SC2_CTRL
2861
MONO|AM_MONO_SOUND
4832
10n
+8V
3837 *
7832
BC847B
100R
*
2851
SC1_LOUT
4831
220n
A8
A12
+8V
*
7833
3839
BC847B
100R
*
2853
4833 SC1_ROUT
220n
8 9 10
0306 F4
0307 G4
1831 B8
2831 C8
2832 C8
2833 C4
2834 B4
2835 B4
2836 B4
2837 B4
A
2838 A9
2839 B9
2840 B6
2841 B5
2842 A5
2843 A5
2844 C3
A7-13
2845 C3
2846 G1
2847 D3
2848 D3
2849 C8
A7-14
2850 C8
B
2851 E10
2852 E8
2853 F10
2854 F8
2855 E1
2856 E2
2857 F2
2858 E3
2859 F1
2860 E2
2861 D8
C 2887 C9
2894 A7
A8-45
2895 A6
2896 E2
2897 C4
2898 A6
A8-46
3831 B4
3832 A9
3833 B9
3834 D2
A10-50
3835 D2
3836 E9
A5-43 D
3837 D8
A9-43
3838 F9
3839 E8
3840 E3
3841 F3
3842 F4
3843 E2
3849 E3
A10-51
4831 E9
4832 D9
4833 F9
4834 F1
E
4835 F3
4836 F3
5831 B3
5832 B7
5833 G2
5835 E2
6831 B4
7831 C7
A10-49
7832 D9
7833 E9
7834 E4
F 7835 E3
G
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