GRUNDIG Service
Chassis PE
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IC-Innenschaltpläne / IC Block Diagrams
S Q
R
Q2
Q1
100
I
pk
Oscillator
C
T
Comparator
+
−
1.25 V
Reference
Regulator
1
2
3
4
5
6
7
8
Drive
MC34063
Collector
I
pk
Sense
V
CC
Comparator
Inverting
Input
Switch
Collector
Switch
Emitter
Timing
Capacitor
GND
(Bottom View)
PI3V512
SEL
Y
C
Y
D
Y
B
Y
A
I
A
0
I
A
1
I
B
0
I
B
1
Y
E
I
E
0
I
E
1
I
D
0
I
C
0
I
C
1
I
D
1
2
1
3
4
8
7
6
5
INA(neg)
TDA1308(A)
OUTA
VSS
VDD
INA(pos)
INB(neg)
INB(pos)
OUTB
EN29LV160A
WE #
CE #
OE#
State
Control
Command
Register
E rase V oltageGenerator
Input/Output Buf fers
Program Vo ltage
Generator
Chip Enable
Output E nable
Logic
Data Latch
Y-De coder
X- Decoder
Y-Ga ting
Cell M atrix
Ti mer
V cc Detector
A0-A19
Vc c
Vs s
DQ0-DQ1 5 (A -1)
Ad
dress
L
atc
h
B lock Protect Switches
ST B
ST B
RY /BY #
So
ur
ce
S
el
ec
t
SCART1
SCART2
SCART1
SCART2
SCART4
SCART3
MONO
Aux
Aux
I
2
S
Sound
Processing
Main
Sound
Processing
DAC
DAC
ADC
Main
DAC
DAC
ADC
I
2
S1
I
2
S2
Sound IF1
Sound IF2
Channel
Channel
I
2
S3
De-
modulator
DAC
Prescale
synchron.
I
2
S
Prescale
asychron.
I
2
S
Pre-
processing
SCART
DSP
Input
Select
SCART
Output
Select
MSP44x8G
PI5V330
D
A
S
1
A
S
2
A
D
B
S
1
B
S
2
B
D
C
S
1
C
S
2
C
D
D
S
1
D
S
2
D
DECODER/DRIVERS
EN
IN
