Schaltbild Stromversorgung Und Bedienteil Circuit Diagram Supply And Control - Grundig CDP75 Bedienungsanleitung

Schaltpläne und Druckplattenabbildungen / Circuit Diagrams and Layout of PCBs
Schaltbild Stromversorgung und Bedienteil
Circuit Diagram Supply and Control
1 2 3 4
SUPPLY/CONTROL PART
A 6V
6251
Temperature
BAS216
+3.5
3,6V
control
8
7275
1,2V
2
LM2903
+1.2 1
T897
3 0V
2,1V
T875
B
6,6V 6,3V
6250
C
SB10-05
1250
DC IN
HEC3600
T876
0,3V
D
6253 +1.2
SB10-05
1,2V
0V
T822
consig
E
0,1V
ESD
F
+uP +uP
+A +A
+1.2 +1.2
G
+S +S
+3.5 +3.5
GND
PCon
H
PoRes
SDA
SCL
Low supply- voltage
SLD
shut-off circuit
I
J
Supply voltages: Explanation of abbreviations:
+A .....battery or ext. DC
+S .....switched +A
K
+uP ....3.5V (switched by low supply voltage
shut-off circuit)
+3.5 ...stabilized voltage of DC/DC converter % ......Tolerance of resistor is only 2%
+1.2 ...Referenze voltage (only if power on)
+6 .....ext. DC
L
DC VOLTAGE MEASURED IN
PLAY MODE-1kHz 0db LEVEL
(SUPPLIED BY MAINS ADAPTOR)
V EVM
M
N
Ext.DC 6-7V
1 2 3 4
2 - 7
5 6 7 8 9
6V
+6
1 2 3
PIN
3281 T878
7280 COM1 COM1 -- -- --
47k
BC858 5,6V
COM2 -- COM2 -- --
1,1V
COM3 -- -- COM3 --
3283 T879
7282
COM4 -- -- -- COM4
47k
BC858 1,1V
1,3V
3285 T880
7284
47k
BC858
1,3V
0V
+A
T881
7460
6
7274
2270 7
BC848
6V
T877 5
0V
1u LM2903
0V
4
0V 7271
2SD1623T
3272
100k
0V
2271
33n
6
0V
7
5 Charge
7275
4
LM2903
circuit
T898
3,8V 3,7V
7451
BC858
3,1V
7401
3,7V 1 3 3,7V
Vref
6400
0,4V 0,4V
7452
0V 2
PST574J
BC848
BAV70
0,6V
0V
T831
6401
3,5V 3,7V
BAV70
3,5V
Reset-circuit
Supply: +6, Battery Supply: +A Supply: +uP
5 6 7 8 9
CDP 75 / CDP 110 Schaltpläne und Druckplattenabbildungen / Circuit Diagrams and Layout of PCBs
10 11 12 13 14
1400
LP 6322
a
4 5 6 7 8 9 10 11 12 13 14 15 16 17
1f 1a 2f 2a 3f 3a 4f 4a 5f 5a 6f 6a arr1 f b
g
1g 1b 2g 2b 3g 3b 4g 4b 5g 5b 6g 6b arr2
1e 1c 2e 2c 3e 3c 4e 4c 5e 5c 6e 6c arr3 e c
1d SHUFFLE 2d --- 3d PROG 4d COL 5d HOLD 6d X12 X13
d
1 2
Batterylevel-detection
LM2903
8
5 +S
+3.5 +3.5
3,6V
8
+1.2
2
1,2V
1 4
1 3,5V
3
7460
2V
LM2903
3465
2400 32.76kHz
330k
22p
2401
22p
CSTC4.0MG
Batt-lev
Batt-ls1
SDA
+uP SCL
During communication
3.8V
3,7V
Mute
TB 10ms SLD
Reset RA
Door
Play
+3.5
+3.5
SSSS2-13-12
Resume/Hold
hold-resume-off
10 11 12 13 14
GRUNDIG Service 2 - 8
15 16 17 18 19
COM 3
PROGRAM 3.8V
SHUFFLE HOLD
TB 5ms/Div
Pin 6 (segment 1d)
1 2 3 4 5 6 3.8V
3 4 5 6 7 8 9 10 11 12 13 14 15 16 17
TB 5ms/Div
T870
80 79 78 77 76 75 74 73 72 71 70 69 68 67 66 65
1 64
LCD - DRIVER
2 63
3 62
4 61
7400
5 60
TMP87CH20F
ROM
6 59
7 58
RAM
8 57
9 56
VLC 16 BIT
10 55
TIMER/COUNTER
11 54
12 53
3,7V
WATCHDOG
RESET
13 TIMER 52
5400
TEST
14 CLOCK 51
15 50
VSS
16 49
3,5V
17 48
0V
3402
18 47
100
3401
19 46
0V
100
T840 20 45
3,6V
3400 21 44
3,6V
100
3407
22 43
0V
100
23 42
3V 0V
24 41 3862
0,4V I/O PORT P0 VDD I/O PORT P1
1k
3,7V
25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40
3,7V 3,6V 0V 0V 0V 3,5V 3,3V 0V 3,6V 0V 0V 3,5V
+uP
+3.5
UBS
UBS On - Off
Wired remote control circuit
1417 ESD11H121
3494
1k
1 2 3
+uP
+uP
+uP
+3.5
1418
2490
1n5
4 3 2 1
A
15 16 17 18 19
CDP 75 / CDP 110
20 21
1250 C 2
1400 A14
1410 L 9
1411 L11
1412 L12
1413 M12
A
1414 M13
1415 M11
1416 L13
1417 K15
1418 M15
1430 H 9
2270 D 6
2271 D 5
2272 E 6
2400 D14
2401 E14
2402 G 7
B
2403 G 8
2404 G 6
2405 G14
2450 G 4
2451 H 5
2490 L18
3256 A 2
3258 B 2
3271 B 3
3272 D 5
RA
3273 E 4
C
3274 E 4
PoRes
3275 C 5
3277 E 4
SDA
3278 D 4
3279 E 6
SCL
3280 A 6
3281 A 6
Mute
3282 A 6
3283 B 6
3284 B 6
D 3285 B 6
3288 B 3
3290 E 6
3400 G15
3401 F15
3402 F15
UBS 3403 G 8
3404 G 9
3405 G 9
RC 3407 G15
3411 K12
E
3412 K13
3413 M16
3415 M16
3430 K16
3451 H 4
3452 H 4
3453 G 5
3454 F 5
3455 H 5
3456 G 5
3457 H 6
F
3458 H 6
3461 E11
3462 E11
3463 E11
3465 E12
3466 E13
3467 E11
3480 C 4
3490 L19
3491 L18
G 3492 L20
3493 L19
PoRes 3494 K18
3862 G20
5400 E15
5401 E15
6250 C 2
6251 A 2
6253 D 2
6400 G 9
6401 I 9
H
7271 D 6
7274 C 5
7275 B 4
7275 E 5
7280 A 6
7282 B 6
7284 B 6
7400 C16
7401 G 7
7451 F 6
7452 G 6
I
7460 E12
7460 E 9
7940 L20
T822 E 2
T831 H 9
T840 F15
T870 B18
T875 B 2
T876 C 2
T877 D 6
J T878 A 7
T879 B 7
T880 B 7
T881 C 6
T897 B 3
T898 F 9
K
L
7940
BC858
M
N
20 21
GRUNDIG Service