GRUNDIG Service
GRUNDIG Service
Platinenabbildungen und Schaltpläne / Layout of PCBs and Circuit Diagrams
Platinenabbildungen und Schaltpläne / Layout of PCBs and Circuit Diagrams
RR 640 CD / RR 670 CD
RR 640 CD / RR 670 CD
3 - 12
3 - 13
REC
REC
REC
REC
REC
REC
REC
REC
+3.2V
(RADIO)
CD LED BOARD
0V (RADIO)
+0.5V (CD PAUSE)
0V
0V
+14.87V (RADIO)
+14.85V
(RADIO)
+14.18V
(RADIO)
+5.62V (RADIO)
0V
(RADIO)
+7.9V (RADIO)
+7.8V (CASS PLAY)
+13.25V (RADIO)
+13V (CASS PLAY)
+13.9V (RADIO)
+13.7V (CASS PLAY)
+1.98V
(RADIO)
+1.15V
(RADIO)
+1.75V
(RADIO)
+0.56V
(RADIO)
+0.58V
(RADIO)
+13.22V
(RADIO)
0V
(RADIO)
0V (TAPE PLAY)
+3.28V (TAPE REC)
0V (TAPE PLAY)
+2.9V (TAPE REC)
0V (TAPE PLAY)
+6.43V (TAPE REC)
0V (TAPE PLAY)
+3.19V (TAPE REC)
0V (RADIO)
+8.6V (TAPE PLAY)
0V (RADIO)
+7.78V (TAPE PLAY)
+7.96V (RADIO)
+7.79V (TAPE PLAY)
0V (TAPE PLAY)
+2.79V (TAPE REC)
0V (TAPE PLAY)
+6.43V (TAPE REC)
0V
0V
0V
0V (TAPE PLAY)
+0.64V (TAPE REC)
0V (TAPE PLAY)
+0.9V (TAPE REC)
0V (TAPE PLAY)
+1.25V (TAPE REC)
0V (TAPE PLAY)
+6.71V (TAPE REC)
IC 201 TA8227P
(LOW FREQUENCY POWER AMPLIFIER)
AT POWER ON CONDITION
PIN NO.
V-OUT
PIN NO.
V-OUT
1
15.17
7
0.00
2
7.56
8
0.55
3
14.55
9
8.00
4
0.00
10
14.55
5
0.55
11
7.50
6
0.00
12
15.30
IC 241 TC9235P
ELECTRONIC VOLUME
AT CD CONDITION
PIN NO.
V-OUT
1
0.00
2
3.57
3
3.56
4
3.57
5
3.57
6
7.10
7
7.11
8
0.00
9
7.11
10
7.62
11
0.90
12
3.56
13
3.56
14
3.55
15
3.56
16
7.13
IC 401 AN7312
RECORD/PLAYBACK AMPLIFIER
AT CASSETTE PLAY CONDITION
PIN NO.
V-OUT
PIN NO.
V-OUT
1
0.00
8
0.00
2
0.00
9
1.27
3
0.00
10
1.39
4
3.24
11
3.24
5
1.39
12
0.00
6
1.27
13
6.32
7
0.00
14
6.35
FUNCTION BOARD
CN301
(ONLY RR 640 CD)
Page 3 - 17
KEYBOARD
CN604
Page 3 - 20 / 21
RECTIFIER BOARD
CN101
Page 3 - 22
CD LED BOARD
P901/P902
Page 3 - 12
AF PART
CN209 (2)
Page 3 - 13
AF PART
CN209 (1)
Page 3 - 13
IC BLOCK
DIAGRAM
to Page 3 - 25
IC BLOCK
DIAGRAM
to Page
3 - 25
CD PART
CN703
Page 3 - 6
FUNCTION BOARD
CN305 Page 3 - 17 / 19
FUNCTION BOARD
CN306
Page 3 - 16 / 18
FUNCTION BOARD
CN307
(ONLY RR 670 CD)
Page 3 - 19
VOLUME BOARD
CN802
(ONLY RR 670 CD)
Page 3 - 15
FUNCTION BOARD
CN301
(ONLY RR 670 CD)
Page 3 - 19
FUNCTION
BOARD
CN304
Page 3 - 16 / 18
IC BLOCK
DIAGRAM
to Page
3 - 25
NF-Teil / AF Part