Grundig ovation cds 6580 spcd Service Manual page 20

GRUNDIG Service
Audio-Platte / Audio Board
CN211
L-CH
1
GND
2
D201
R-CH
1N4148
3
MUTE
4
V+
5
C214
470u/S
235
C225 C224
K9
22n(M)J 22n(M)J
R224
55 R223 C223
/S 22K 1% 82K 1% 22n(M)J
R276
3K3
36
R233
9
82K 1%
R234
22n(M)J
22K 1%
C234
C233
22n(M)J
R232
53
7/S
2K2 1%
R244
100n(M)
15K 1%
C235
2n(M)J
39n(M)
R243
C247
C246
15K 1%
15n(M)J
R277
3K3
R248
10K
47
0K
R245
22K 1%
R246
10K
R237
22K
R205
D203
D202
100K
1N4148
1N4148
R215
22K
C213
10n
R214
100K
Q203
9014C
R222
2K2 1%
C220
C222
1u/S
R221
u47/S
15K
R220 C221
500P
820
100u/S
C227
C231
500P
R230
C230
820
1u/S
R231
15K C242
1u/S
C232
u47/S
R241
2K7
R242
22K
C245
C244
1u/S
R240
1K
R239
100
R249
100
C248
100u
CN204
to CN302
p.3-3
24 23 22 21
BD3871FS
T r e b l e 1
T r e b l e 2
f c = 8 k H z f c = 8 k H z
0dB
~
–87dB
–•
Vcc/2 Vcc/2
1 2 3 4
Q204
9014C
R250
Q205
47
8050
R213
330
C210
C212 100n
100u
IC201
LA4630N
CH1B
11
CH1+IN
CH1O
13
PREGND
PWGND1
12
CH2+IN
CH2O
CH2B
14
CH3+IN
C243
2n
CH3O1
16
CH3-IN1
C240
PW2GND2
10u/S
15
CH3-IN2
CH3O2
C241
100n
Q201
8550
R210
1K
L2 L2
2T
2T
CN203
to CN301
p.3-3
20 19 18 17
Bass 2 Bass 1
=80Hz =80Hz
f f
0 0
50k
50k 50k
5 6 7 8
3 - 5
R216
C215
8K2
22u/S
C211
2200u25V
R201
2.2
33n(M)
C203
C201
100u
L CH
7
4
C202
L GND
470u 3
R GND
8
2
R CH
1
6
CN201
R202
C206
2.2
33n(M)
5
C205
470u
4
C204
100u
1
C207
R203
WOOFER
100n
CN202
2.2 +
2
1
-
2
R204
C208
3
2.2
100n
C288
100u/S
R280
27K
R284
Q206
D209
560 9014C R282
1N4148
33K
R283
R281
100K
C289
15K
10u/S
Q202
R212
R211
9014C
47K
220K
POWER ON
16 15 14 13
Logic
Vcc/2 Vcc/2
Vcc/2
50k 50k
50k
9
10 11 12
OVATION CDS 6580 SPCD
L-SPEAKER
4 ohm
4
3
2
1
4 ohm
SO251 R-SPEAKER
1
2
6 ohm
SO252
WOOFER