Grundig UMS 1 Serviceanleitung Seite 44

Schaltpläne und Platinenabbildungen / Circuit Diagrams and Layout of PCBs
PLAYBACK
LEVEL L
DOLBY NOISE
R229
220
REDUCTION
SVR102
47k C218
100u
C113
R122
1u 2
1k
14 16
11V
5.6V
5.6V
+
C114
1
5.6V
220p
R222 C213
1u
1k
3 13
5.6V 1.2V
+
T105
IC104
C214
0V 6
BC548C 5.7V
220p CXA1100P
0V
7 0.5V 11
5.7V
R128
100k
10 12
0.5V 5V
4 5
5.6V 0V
5.6V 5.6V
PLAYBACK
15 9 8
LEVEL R
SVR202
47k
C244 C144 C117
C142 C242
0.68u 0.68u 100u
2.2u 2.2u
GND
R. DOLBY TP
D1
T205
0V
BC548C
D104 L. DOLBY TP
0V 1N4148
D2
R228
100k
R192 R292
3.9k 3.9k
R162
15k
T109
BC558B
(6.3V) (11.7V)
+12V
T110
R150
BC548C R143
R136 R135 22
1.2M
T111
(11V)
220 560k
(0.7V) (0.7V)
BC558B
C139
R142
R137 (2V) 1u
220
15k +
(2.5V) R144
R138 240k
56k
R149
4.7k
R139
L102
R145
10k
C137 10m
270
0.1u
R146 R147
2.2k 150
C138
22u/25v
C140 C141
3.3n 6.8n
RECORDING EQUALIZER
T209
BC558B
(6.3V) (11.7V)
T210
BC548C R235
R236
T211 560k (11V)
220
(0.7V) (0.7V)
BC558B
R243
C245
1.2M 100u/25v
R237 (2V) R242
15k 220 +
(2.5V) C239
R244
R238 1u
240k
C237
56k
R239 L202
R245
10k
0.1u 10m
270
R246 R247
2.2k 150
C240 C241
C238
R249
6.8n
22u/25v 3.3n
4.7k
(...V) = MEASURED RELATIVE TO GND DURING RECORDING OF A CR CASSETTE WITHOUT SIGNAL
(V) = MEASURED RELATIVE TO GND DURING PLAYBACK
3 - 21
+12V
R124
4.7k
C115 + 2.2u
2.2u
R224
4.7k
C215 + 2.2u
2.2u
R130
43K
C216 C116
R223 R123
220p 220p
3.6k 3.6k
+
C143
2.2u
+
C243
2.2u
R182
5.6k
C164 R129
4.7u 22k
C217 R164
10u 10K
R125
100k
R.LINE.OUT
R225
100k
L.LINE.OUT
+12V
R171
+5V
100k
T128
10k R194
BC548B
T207
0.8V
R172 4.7k
BC558B 11.8V
0V
C219
0.47u
T220
BC558B
0V
R173
R159
10k 100k
0V
0V T219
BC558B
–1.1V 0V
R259
R156 R256
100k
–1.2V
T113 10k 10k
6.8k
0V
BC548C
R153
R152 10k
–1.3V
R258 R158
3.9k 3.9k
T115
T116
–1.2V
0V BC338-25
BC558B
R175
22k
0V
0V 0V
R157
100k
T114
0V
BC338-40
T215
C157
–1.3V BC338-25
3N3
R154
3.9k
0V
REC-MUTE
R257
C158
3N3
470p
R155
470
T214
0V
LINE MUTE
BC338-40
–1.3V
R252
6.8k
R254
3.9k
0V
–1.3V
R253
T213 10k
BC548C
GRUNDIG Service
UMS 1 / UMS 2 Schaltpläne und Platinenabbildungen / Circuit Diagrams and Layout of PCBs
+12V
ALC
R183
270
9.6V
11 16
2.8V
+
C170
IC105
15
C153
TA8135P
6
2.8V 100u
+ C270 9
2.8V 2.8V 2.8V 2.8V 1V 2.8V 1V 0V
10 7 2 3 5 14 12 8
C250 C251 C150 C151
220p 220p 220p 220p
R282
5.6k
+12V
+12V
R181 R281 R230
T218
3.3k 3.3k 22
BC548B
R180
0V
4.7k
T223 T222
T217
BC550C BC550C
BC548B
0.8V
R179
1.5M
C230
0V
R189
100u C304
100u 4.7k
C269 C268
100P 100P
R302
33k
1k R165
D305
BAT42
C155 D304
10n 3.9C
+5V
R305
4.7k
R306
4.7k
R255
470
GND
CN102
TO AUDIO BD. TC102
PAGE 3-3
3 - 22
+5V
2-4V
0
REC-F
1
68k
2
R342
SOL
3
PWR-KEY
4
5
MOT+
6
MOTOR
R350
7
2.7k
MOTOR
SVR106
8
4.7k
SPEED ADJ
9
MODE
10
CR
11
12
REC-R
13
Laufwerkschalter
Drive mech. switches
+12V +12V
T302
T306
BC327-25
BC636
11.9V 11.9V
11.5V 11.3V
0V
0V
11.5V 0V
T301 T305
0.7V
0V
BC548B
BC548B
TC603
TO CONTROL/CD BD. CN603
PAGE 3-14
UMS 1 / UMS 2
MECH. DECK (R/P)
CRF 4134
SERVO MAGNET
1
REC-F SOLENOID
2
3
HALL IC
4 HALF
5
6
+
7
M
-
8
9
10
MODE
11 CRO2
12
13
REC-R
=
REC-F Aufnahmesperre "Normal"
Recording lock "Normal"
REC-R = Aufnahmesperre "Reverse"
Recording lock "Reverse"
CRO2 = Bandsortenkennung
Tape select
=
HALF Cassettenerkennung
Cass. "loaded" ident.
MODE = Kopfschlittenschalter
Head carrier switch
GRUNDIG Service