Sanyo C28W1 Service Manual page 11

SAA7283ZP <NICAM DECODER>
28
MIXREF
29
DQPSK
26 24 30 31 36 37 21 20 34 33 35 39 48 43
TDA9840 <STEREO/DUAL SOUND PROCESSOR>
V
i1
7
AF1
250mV RMS
(from 1st SC)
250mV RMS
(from 2nd SC)
8
AF2
V
i2
V
ipil 5
4
C
DCL
2
C
AGC
3
C
LP
F2HT
23 22 32 25
27
-2dB
0 to 4.5dB
-2dB
0 to 4.5dB
LEVEL STEREO
LEVEL AND
STEREO
ADJUSTMENT
45
38 47 52 1 18 19
40 41 42 50 49 51 2 46 44
REPRESENTS CONTROLLER BUS
C C
V
D2
D1 i3
15 17 9
L/A/MONO
250MV RMS
0 to 4.5dB
A/MONO
L
R/B
250MV RMS
TDA9840
DIGITAL PLL
DIGITAL
AND
INTEGRATOR
DEMODULATOR
DITAL PLL
DIGITAL
DIGITAL
AND
PLL
INTEGRATOR
DEMODULATOR
GENERATION
OSCILLATOR
V
REF
OF
REFERENCE
VOLTAGES
19
6 16
18
XTAL
1/2 Vp GND
Vp
-11-
7 6
SAA7283ZP
17 3 4 11 5
12 16
V
i4 500mV RMS
10
500mV RMS 14
6dB
500mV RMS 13
6dB
12
500mV RMS
6dB
11
500mV RMS
6dB
MUTE
DUAL bit
20
IIC BUS
1
CONTROL
STEREO
bit
CONTROL
POWER-ON
LOGIC
RESET
8
OP-R
15
OP-L
V
o1
MAIN
V
o2
V
o3
SCART
V
o4
SCL
SDA