Cd Drive Mechanism - Grundig UMS 1 Serviceanleitung

UMS 1 / UMS 2
CD-Laufwerk

CD Drive Mechanism

1
1
RADIAL-
FOCUS+ 2
3
FOCUS-
RADIAL+ 4
SUBSTRATE 7
D5
11
D4 12
D3
10
D2 9
D1 8
+LASER 6
Einstellregler nicht verstellen!
Do not re-adjust the preset control!
5
GND
3
5
4
3
2
SW1
1
SW2
CD DOOR SWITCHES
2
6
5
4
3
2
1
SLIDE REST SWITCH
GRUNDIG Service
Schaltpläne und Platinenabbildungen / Circuit Diagrams and Layout of PCBs
LASER PICK UP
2
5
10
1
9
7
6
S
3
LASER
8
4
LOADING MOTOR
(DOOR CLOSED)
SLIDE MOTOR
DISC MOTOR
UMS 1 / UMS 2
Schaltplan / Circuit Diagram
Cassette
R/P HEAD
C132
1N2
5
4
L-CH
3
C232
1N2
R166
2
1k
1
RP1
R-CH
L.REC
R.REC
+12V
R169
150
BIAS L
BIAS R
SVR103 SVR203 R170
220k 220k
3 1 7 9 6
9.5V
IC103
C408 C409 uPC1330HA
PLAY
220p 220p
POS.
2 8 5
C407
270p
HEAD SWITCH
BIAS GENERATOR
T126
BC338-40
L401
3 6
ERASE-HEAD
EH
+
2 5
C405
10u/50v
C406
1 4
10n
7 8
1
T127
L1
BC338-40
(5.8V)
3 - 19 GRUNDIG Service
Schaltpläne und Platinenabbildungen / Circuit Diagrams and Layout of PCBs
R106
10k
R105
T103
220k BC550C
2.6V
R107
1k
T102
1.2V 1.2V
C104 BC550C
R104
2.2u
220
0.5V
C106
+
100p
0V
+12V
R109
C105
390k
100p
T118
BC548C
11.4V
C108
R110
3.9n
4.7k
12V
R111
470
C118
PLAYBACK EQUALIZER
100u/25V
R206
10k
T203
R205
BC550C
220k R207
1k
T202 1.2V
1.2V
BC550C
R204
220
0.5V
+ C206
100p
C204
2.2u
0V
R209
C205
390k
100p
C208
R210
3.9n
4.7k
R211
470
R131
13k
(10.8V) T117
R231
BC548C 13k
1k
(0V)
4
P=H R168
22k
R=L
C410
10u/16v
(5.8V)
+12V
R405
T125
10k
R401
(0.3V) BC337-25
R403
(5.8V) (10V) 22
100k (0V)
C403
5.6n
R411
22k
R402
(0.7V)
C401 100k
(6.4V)
47u/50v
T122
R409
BC548C R404
C402 (11.3V)
560
T123
100k
22n
BC558B
(11.9V)
(6.5V)
R406
R408 22k
(0V)
R412 1.5k
22k
T124
C404
R410 R407
5.6n BC548C
100k
680
(0.3V)
C109
R115
2.2u/100v
13k
+
0.6V
T105
0V
BC5
R118
C111
3.9k
3.3n
R113
R120
680
150k
C209
R215
2.2u/100v
13k
+
2.6V
0.6V
T205
0V
BC54
R218
C211
3.9k
3.3n
R213
R220 R2
680
150k 10
C135
10u/50v
HEAD
(6.3
CURRENT
+
T110
L
BC548C
SVR104
C134
22k
330p
(0
R132
10k
C137
0.1u
RECOR
HEAD
C235
CURRENT 10u/50v
(6.3
R
+
T210
BC54
C234
330p
(0
R232
SVR204 10k
22k
C237
0.1u
3 - 20