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Schematics and PWB's
Large Signal Panel: NICAM + 2CS + BTSC (Stereo / SAP Decoder)
1
2
NICAM + 2CS + BTSC (STEREO/SAP) DECODER
A
+5VA
VlotAux+5V
B
VlotAux+5V
C
A11
D
MONO|AM_MONO_SOUND
3834
A9-43
*
SC1_LIN
A10-47
SC1_RIN
A10-48
E
+5VA
I849
2855
QSS_AM_DEM_OUT
A5-42
*
F
FMR
A5-44
G
5833
VlotAux+5V
3u3
H
1
2
L01H.1A
3
4
5
I831
I832
6831
1N4148
3831
47K
2897
390p
I837
2V6
43
1V5
47
2833
1V5
48
47p
I839
I840
2847
3V8
44
*
3V8
41
3V8
42
39
40
A11a
5V
5V
I855
2856
3V
0V
*
I848
7834
7835
RES
2V5
2V5
*
RES
2858
RES
*
*
*
I851
*
2859
RES
I838
A6
A7
A8
+5VA
2V / div DC
2V / div DC
1V / div DC
200us / div
200us / div
500us / div
3
4
5
7.
31
6
7
(AP)
2843
10u
2842
100n
2895
560p
2894
220p
2898
10n
I835
2840
F832
100n
34
50
17
16
36
45
46
35
33
29
23
20
6
5
7
8
51
AUDIO PLL
VREFTOP
SOUND IF
DACM-L
ANA_IN1+
FM1/AM
D/A
DEMODULATOR
FM2
LOUDSPEAKER L
LOUDSPEAKER
& NICAM
ANA_IN1-
NICAM A
DACM-R
DECODER
NICAM B
D/A
LOUDSPEAKER R
MONO
MONO-IN
IDENT
DSP
SC1-IN-L
SCART-L
A/D
SCART 1
SC1-IN-R
A/D
SCART-R
SCART-L
D/A
SC2-IN-L
SCART-R
D/A
SCART 2
SC2-IN-R
SCART
Switching Facilities
NC
12
18
19
21
22
27
28
32
37
38
49
ITEM RF Mono Rest
DBX
2847
1u
RES
2855
RES
---
33p
2856
RES
---
47p
A5
2857
RES
150p
2860
RES
---
180p
I850
3842
I854
3834
100R
RES
3843
RES
2K2
2K2
RES
4835
RES
Jmp
5835
RES
12u
A8a
A9
A10
A11
1V / div DC
500mV / div DC
500mV / div DC
1V / div DC
500us / div
500us / div
500us / div
200us / div
6
7
8
9
10
A6
I833
A7
I834
5832
6u8
1831
18M432
HC-49/U
7831
MSP34X5G
52
A10
25
1V8
A9
24
1V8
2
3
0V
F831
4
0V
9
10
4832
TP
RES
11
8V1
I843
3837
I842
7832
13
3V8
RES
100R
14
I841
4831
3V1
A8
15
26
31
3V
SC1-OUT-L
A8a
SCART
SC1-OUT-R
30
3V
8V1
I845
7833
I853
3839
3V
RES
100R
1
I844
4833
3V
GS
QSS
---
---
---
TO
27p
---
0239
0215
15p
---
OF
---
---
---
56p
---
---
---
---
---
RES
---
---
---
---
---
---
A11a
500mV / div DC
2us / div
8
9
10
0239 G10
1 1
1831 C9
2831 C9
2832 C9
2833 D5
2834 B4
2835 B4
2836 B5
2837 B4
2838 B10
2839 B10
A
2840 C7
2841 C5
2842 A7
2843 A7
2844 D4
2845 D4
2846 H2
2847 D4
3832
SCL
2848 D4
A7-13
2849 D10
100R
2838
2850 D10
2851 E10
B
RES
2852 E9
3833
SDA
2853 F10
A7-14
2854 F9
100R
2839
2855 E3
2856 E3
RES
2857 F3
+8V
2858 F5
2859 G3
2860 F3
2887 C10
2894 B7
C
2895 A7
2896 F4
2897 C4
2898 B7
3831 B4
3832 B10
Main_OutL
3833 B10
A8-45
2849
3834 D3
3835 D3
1n
Main_OutR
3836 E10
A8-46
3837 E9
2850
3838 F10
D
1n
3839 F9
3840 E4
SC2_CTRL
3841 F4
A10-50
3842 G6
3843 F3
MONO|AM_MONO_SOUND
3849 F4
4831 E10
A5-43
4832 E10
+8V
4833 F10
A9-43
4834 F2
4835 F4
2851
SC1_LOUT
E
4836 G4
A10-51
5831 B4
RES
5832 B9
5833 G3
5835 F3
6831 B4
7831 C8
+8V
7832 E10
7833 F10
7834 F5
7835 F4
2853
SC1_ROUT
F831 D9
F
A10-49
F832 C7
RES
I831 B4
I832 B4
I833 B9
I834 B9
I835 B7
I836 A6
I837 C5
1
I838 G3
KEYBOARD_protn
I839 D3
2
I840 D5
A7-8
3
I841 E10
G
I842 E9
I843 E9
I844 F10
I845 F9
I847 F4
I848 F4
I849 E2
I850 G5
I851 F5
I852 C5
H
I853 F9
CL 16532101_010.eps
I854 G6
230801
I855 E3
11
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