Audio - Grundig 32 GLX 2500 Service Manual

GRUNDIG Service
Chassis – Tuner YRQ190R-5
TUNER_5V
RFAGC
3
I2CSCLTUN_5V
A5V I2CSDATUN_5V
4
L700
4U7H
TUNER_5V
+
+
C703
C718
-
100UF/16V/NC
100NF/25V
C705
TUNER_5V
100NF/25V
R712
AGC_OUT
AGC_OUT
1K
1NF/50V
Q705
BC848BLT1G
R725
220K
R728
680K
10NF/50V
R734
R736
1K
6K8
SAW700
GND
K9656M
1
SAW
5
IN
D700
C724
BA591
10NF/50V
2
IF_TV
ING
R747
2K2
GND
GND
SAW701
K3958M
IN 1
SAW
R759
L706
51R 1.0uH/NC ING 2
GND
5V-IF
R738
R739
680R
0R
R742
330R
Q700
BC848BLT1G
R758
0R/NC
R755
IF_VID_OUT 1Vpp R752
Q708
2Vpp
BC857B
470R
75R
R756
6
C719
1K
330pF/NC
A5V A5V
A5V
R483 R484
2N7002K
4K7 4K7
Q703
2N7002K
R720 0R/NC
Q704
I2CSDA_5V
I2CSCL_5V
R721 0R/NC
TU701
ET-9HD2L-E01W
3
A/SEL
4
TUN_5V
TU700
LG-TDTC-G4XXD
5
IF_TV
VCC_33V
A/SEL 0R/NC R722
0R/NC R708
L701
C706
TUNER_5V
BK1608HM601
100NF/25V
4
C707
R714100R
I2CSDA_5V
I2CSCL_5V
R715 100R
3
5V-OUT
+
C712
R724
100NF 10UF
22K
GND
C715
C716
100NF/25V
R730
GND
22K
GND
5
OUT2
GND
4
OUT1
OUT2
5
OUT1
4
C732
10NF/50V
C734
R764
R761
100R
390PF
5K6
GND
GND
7
4 3
C728
330pF /NC
L705
AV1_TUN_CVBS
AV1_TUN_CVBS
0R
C729 C730
330pF/NC 330pF/NC
A5V
R703
R704
680R
3K9
Q701
BC858BLT1G
C701
Q702
AV1_TUN_CVBS
BC848BLT1G
R707
SCART_VOUT
100UF/16V
150R
R709
3V3_B
1K8
R710
150R
R716 R717
3K3 3K3
R718 100R
IIC1_SDA
R719 100R
IIC1_SCL
C710
C708
47P F
47PF/50V
A/SEL
I2CSCLTUN_5V
I2CSDATUN_5V
0R R700
RFAGC
TUNER_5V
TU703
(NXP HYBRID)
C702
1UF/50V
0R R705
0R R706
RFAGC
C709
A/SEL
47PF/50V
I2CSCLTUN_ 5V
I2CSDATUN_5V
0R
VCC_33V
R713
TUNER_5V
0R
5V-IF
L702
BK1608H M601 /0603
10UH C711
C713 R723
100NF
C714
12K
10NF
GND GND
R729
1K
D701
R735
100K
X701
1N4148-SOT2 3
4MHz
R741
100R
GND
IF_VID_OUT
6
U700
TDA9886TS/V4
140mVrms
R760
0R
5V-IF
C733
10nF
R762 R763
1k 10R
R766 0R
100NF/25V
Q711
BC848B
R767 C738
R768
1k NC
820R
GND
TOP TAGC VAGC
9 ( ) 8 14 (15)
C AGC(neg)
TUNER AGC VIF-AGC
2 (31)
VIF2
1 (30)
VIF1
SCAR T_VOUT
24 (27)
SIF2
23 (26)
SIF1
IIC1_SDA
IIC1_SCL SUPPLY
(6, 12, 13, 14, 17,
19, 25, 28, 29, 32)
20 (22) 18 (20) 13
V P AGND n.c.
2 - 12
TU702
NXP_UV1316E MK5
0R R701
IF_TV
VCC_33 V
0R R702
C700
100NF/50V
3
R711
IF_TV
5
4
A5V
L703
AGC_OUT
C717
+
5
47UF/16V
6
7
C737
SIF_OUT
SIF_OUT
8
8
(1) (1) Not connected for TDA9885.
VPLL REF
1 6 1 ( ) 7 19 (21) 1 5 1 ( ) 6
C BL
DIGITAL VCO CONTROL AFC DETECTOR
RC VCO
SOUND CARRIER
VIF-PLL
4.5 to 6.5 MHz
TDA9885
TDA9886
SINGLE REFERENCE QSS MIXER
INTERCARRIER MIXER
AND AM DEMODULATOR
MAD
2 NARROW-BAND
OUTPUT I C-BUS
SIF-AGC
PORTS FM-PLL DEMODULATOR
TRANSCEIVER
C AGC
3 (1) 22 (24) 11 (10) 10 (9) 7 (5) 12 (11)
O P 1 PO 2 SCL SDA DGND SIOMAD
Chassis SZ
AFC
2 1 2 ( ) 3
(18) 17
TRAPS CVBS
(7) 8

AUDIO

AUD
PROCESSING
(3) 5
DEEM
AND SWITCHES
(4) 6
AFD
4 (2)
F M P L L