Ic Block Diagrams - Grundig RR 3200 CD Service Manual

Schaltpläne und Druckplattenabbildungen / Circuit Diagrams and Layout of PCBs
IC-Blockdiagramme

IC Block Diagrams

TEA5711T
FM-RF (O) FM-IF1 (I)
FM-RF (I) FM-MIXER FM-IF1 (O) FM-IF2 (I) FM-DEM LPF M/S VCO/AM-FM SWITCH
16 21 13 11 9 7 5 31 27
17 FM
FM FM FM FM PHASE
RF GND
FRONT-
MIXER IF1 IF2 DETECTOR DETECTOR
END
23
FM OSC
FM
25 FM
AM/FM
Vp SWITCH CONTROL
OSCILLATOR SWITCH
AM
19
RIPPLE
12
TEA 5711
VSTAB (A)
8
VSTAB (B)
6
AM AM/FM V-1
IF GND AGC
OSCILLATOR INDICATOR CONVERTER
24
AM-OSC
18 AM PILOT
AM AM
AM-RF (I) FRONT- AM-IF PRESENCE
MIXER DETECTOR
END DETECTOR
14 15 10 20 26 28 4 29
AM-MIXER AM-IF1 AM-IF2 AM-AGC IND AF PILFIL MPX-I
FM-AFC (O)
TA8189N
Metal Pre Tape A Rec
NF Out Out Tape B VCC CG Out
22 21 20 19 18 17 16
TA 8189 N
A / B
ch 2
ch2/B 23
–
ch 2
+
24
ch2/A
*
ch1/A 1
+
ch 1
–
ch1/B M / N ch 1
2
3 4 5 6 7 8 9
NF Metal Pre MIX GND 1 M/N Rec
Out Out Out Out
BA5053
3 - 15
RR 3200 CD / RR 3500 CD
LC78815M
LC 78815 M
VCO DIVIDER
TST OUT 11
MODE1 13
TIMING
MODE2 14
SYNCHRON
SDS CONTROL
DETECTOR
FSEL 12
AND
SYSCLK 9 R-STRING
TEST
BCLK 8
3
LRCK 5
AF-R (O)
SOFT
MATRIX
MUTE 2
AF-L (O)
DATA L 6
SIPO
LEVEL SHIFT
REGISTER
DATA R 7
MONO/ST LED 30
ST-LED
SWITCH DRIVER
CH1 LATCH
32 22
MUTE SUB
GND
NF
15
BA5049
–
Rec IN
14
+
ALC
13
ALC
GND
12
+
Rec IN
11
–
10
NF
TC9153AP
B+ R1_O/P R1_I/P AGND2
16 15 14
1 2 3
GND L1_O/P L1_I/P AGND1
LA6458S
LA 6458 S
- + + -
1 2 3 4 5 6 7 8 9
Schaltpläne und Druckplattenabbildungen / Circuit Diagrams and Layout of PCBs
LA9210M
CH1 V REF V REF CH2
OUT H L OUT
1 3 18 20
+ - + -
PWM PWM
DAC DAC
R-STRING
DAC DAC
LEVEL SHIFT
DAC DAC
CH2 LATCH
LC7861
R2_I/P R2_O/P U/D OSC
13 12 11 10 9
EFMIN
LOGIC
TC 9153 AP
4 5 6 7 8
L2_I/P INH DCO
L2_O/P
LA6531
WRQ 50
SQOUT 52
16 15 14 13 12 11 10 9
Amp 4 CQCK
+
-
Amp 3
DEMO
Buffer
Amp 2
Amp
+
-
Amp 1
LA 6531
1 2 3 4 5 6 7 8
GRUNDIG Service 3 - 16
7 6 4 3 2 18 1 9 23 28
VCO
SLICE LEVEL 2K x 8 bit
8 CLOCK OSCILLATOR
CONTROL
RAM
CLOCK CONTROL
SYNCHRON DETECT
FSEQ 19
EFM DEMODULATION
C1, C2 ERROR DETECT
&
CORRECTION FLAG
CLV+ 10
PROCESSING
CLV
DIGITAL SERVO
CLV-
11
V/P 12
PW
48
SBCK
SUBCODE ISOLATION
SBSY 0 CRC
46
SFSY
µCOM
INTERFACE
M/L 56
54
COIN 53
XTAL
TIMING
RWC 51 SERVO GENERATOR
COMANDER
27
15 16 17 20 29 57 58 59 62 45 49 63 64
RR 3200 CD / RR 3500 CD
61 24 5
LC 7861
RAM ADDRESS
GENERATOR
41 C2FCLK
38 LRSY
COMPLEMENT
MUTE
42 C2F
40 ROMOUT
DIGITAL
43 DOUT
OUT
DIGITAL FILTER
DFOFF
DAC OUTPUT 30
INTERFACE
37 DFIN
32
31
39 60 34 33 36 35
GRUNDIG Service