Hauptplatte, I/O-Platte, Verstärkerplatte; Main Board - Grundig PA 5 - Turnit Serviceanleitung

PA 5 - Turnit
Schaltpläne Steuereinheit: Hauptplatte, I/O-Platte, Verstärkerplatte
Circuit Diagrams Control Unit: Mainboard, I/O Board, Amplifier Board
2u2/100V
R500
ANAOUT-L
+
1K C506
A 2u2/100V
R501
ANAOUT-R
+
1K
C507
A
2u2/100V
R502
L-TUNER
+
1K
C508
A
2u2/100V
R503
R-TUNER
+
1K
C509
A
2u2/100V
L-OUT-TAPE
+
C510
2u2/100V
1K
L-IN-TAPE
+
R504
C511
2u2/100V
1K
R-IN-TAPE
+
R505
C512
2u2/100V
R-OUT-TAPE
+
C513
BU500
L
1
L
3
AUX IN
GND6
2 P507 P508
R
A A
1
1
R 4
2u2/100V
2 1K
2
5
+
CH 3
3 R507
C519
4
4 A
GND6
5
BU501 5
L
A A
1
L
3
AUX OUT
2
R
4
R
5
CH R508 10u/50V R517
GND6
+
560
560
C522
IN/OUT BOARD
BU502
1 A A
TO
TUNER
2
BOARD
R509
GND7 GND7
560
10u/50V
R519
+
100n/+50-20%
100p/5%
C604 P560 560
C523
K
K
P571
C529
M4
GND6
A A A
GRUNDIG Service
Schaltpläne und Druckplattenabbildungen / Circuit Diagrams and Layout of PCBs
1 4.5V (CD) 16 0V
2 4.5V (TUNER) 17 0V
3 4.5V (AUX) 18 12V
4 4.5V (CASS) 19 12V
5 4.5V 20 /
6 4.5V (CASS) 21 /
7 4.5V (AUX) 22 /
8 4.5V 23 4.5V
9 / 24 4.5V (AUX)
10 / 25 4.5V (CASS)
11 / 26 4.5V
12 0V 27 4.5V (CASS)
13 / 28 4.5V (AUX)
14 / 29 4.5V (TUNER)
15 / 30 4.5V (CD)
IC500
8305-262-821
30 29 28 27 26 25 24 23 22 21 20
19
VDD
12
VEE
16
VSS
A
1 2 3 4 5 6 7 8 9 10 11 18
A
+12V
R523
10K
A A A
+12V
NJM4556
8305-293-556
8
C584
3
+
+
6.0V
1
IC520/A 0u47/100V
2
+12V
6.0V -
C520
+
100u/25V
A
A
C585
5
+
+
6.0V
7
0u47/100V
IC520/B
6
-
6.0V
4
A
PA 5 - Turnit
C609
+
10u/50V
LEFT-IN
GND10 GND10
GND10
C608
+
10u/50V
LC7821
RIGHT-IN
+12VH R559
14
D1
10
15
CL
13
CE
GND-DIG
GND10
17
A
2u2/100V
+
C533
4.6V
4.6V
17 16 12 19 18 4
RB
4.5V 15 L1
VOL BASS TREB
14 L2
IC501 13 L3
INPUT
SEL. SERIAL BUS DECOD. + LATCHES
TDA7313
GAIN
9 R3
8305-847-313
10 R2
4.5V 11 R1
VOL BASS TREB
+12V
RB
SUPPLY
2 3 1 7 6 8 21 20 5
9.2V
A
A A A
4.6V
A A
4.6V
2u2/100V
+
C559

MAIN BOARD

3 - 5 GRUNDIG Service
Schaltpläne und Druckplattenabbildungen / Circuit Diagrams and Layout of PCBs
NJM4556
C569 R673
R581
+
8 12.0V
3 100 47
+ 10u/50V
6.0V
1
IC503/A
2 6.0V R574 T505
-
BC546_B
6.0V
1K
GND10
GND10 GND10
GND10
R555
T504
BC558_B
MUTE_HP
56K
56p/5%
K
C565
GND10
GND-DIG GND-DIG
5
R576
+
T506
6.0V
7
BC546_B
1K
IC503/B
6 6.0V
-
6.0V
C572
R575 R582
4
+
100 47
GND10 10u/50V
R556
56K
56p/5%
AMPLIFIER BOARD
GND10
K
GND10 GND10
C566
GND10
GND-DIG
R527
5K6
A
A D A
C540
F
2n7/5%
A
C542
25 4.6V +
M
2u2/100V
23
M
28
27
26
D
C543
M 24 4.6V +
2u2/100V
22
M
A A
+12V
A
P20
GND-DIG
P505
1
RIGHT-IN
2
LEFT-IN
3
P504
4
p. 3-7
5
6
7
21/01/98
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