Grundig Apollo 42, Руководство по обслуживанию

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GRUNDIG Service Chassis PE
2 - 40
9 19
18 17 16 15 14 13 12
1
3
5
6
8
10
11
20
2 7 4
BUS
DECODER
D N G A T A D CLOCK V
CC
TTX LUMA
CHROMA
POWER
PIP MAC
DEC.
GND
CVBS
(AM TUNER)
MAC SIGNAL
(AMTUNER)
CVBS
(FM TUNER)
MAC SIGNAL
(FM TUNER)
SYNCHRO
(TTX/BTX)
PERI
TV1
PERI
TV2
CVBS
(PERI PLUG2)
P ROG
CVBS
(PERI PLUG1)
CVBS
(MAC/DEC)
T
E
A
6
4
1
5
C
TEA6415C
TDA9885; TDA9886
MHC108
DIGITAL VCO CONTROL AFC DETECTOR
RC VCO
VIF-PLL
VIF-AGC TUNER AGC
SUPPLY SIF-AGC
AUDIO PROCESSING
AND SWITCHES
NARROW-BAND
FM-PLL DEMODULATOR
SINGLE REFERENCE QSS MIXER
INTERCARRIER MIXER
AND AM DEMODULATOR
SOUND CARRIER
TRAPS
4.5 to 6.5 MHz
TAGC
C VAGC(pos)
C AGC(neg)
C BL
VAGC
(1)
TOP
14 (15)
VPLL
19 (21)
4 (2) 10 (9) 11 (10)
12 (11) 18 (20) 20 (22)
2 (31)
1 (30)
(18) 17
(7) 8
(3) 5
(4) 6
external reference signal
or 4 MHz crystal
REFAFC
AUD
CVBS
audio output
video output: 2 V (p-p)
[1.1 V (p-p) without trap]
C AF
SIOMAD SDA SCL
MAD
VP
C AGC
(6, 12, 13, 14, 17,
19, 25, 28, 29, 32)
13
n.c. AGND
7 (5)
DGND
OUTPUT
PORTS
I
2
C-BUS TRANSCEIVER
22 (24) 3 (1)
OP1OP2FMPLL
DEEM
AFD
sound intercarrier output
and MAD select
FM-PLL
filter
VIF-PLL
filter
de-emphasis
network
VIF2
VIF1
24 (27)
23 (26)
SIF2
SIF1
TDA9885
TDA9886
(1)Not connected for TDA9885.
Pin numbers for TDA9885HN and TDA9886HN in parenthesis.