Denon SYS-76HT Service Manual page 20

DSW-76 SCHEMATIC DIAGRAMS (1/2)
1 2
-12.3V
* R2CA 1
C201
1 C220
0.1u
2 10u/16V /20%
1.5k
R201
3 C210
220p/10%
R203
C203
20k
10u/16V /20%
C209
220p/10%
R214
220K
DZ201
C202
R209
150
10u/16V /20%
1N4733/3.3V
C212
220p/10%
R210 R226
47k 150k
C216
47p/50v/10%
U201B
C217 TL074
R212
6
7
33k
1u/16V /20% 5
D207
1N4148
R231
1k
D202
1N4001
TO P104 +13.3V
P201 D201 C218
1N4001 220u/25V
5
4
3
2 STBY
D203
1
-V st 1N4001
*
TO P302
D204
1N4001
-13.3V
C232
10u/16v
3
D205
1N4148 R234 U201C
R204 10.5K/1%
U201A 20K
13
3 C233 C234
1 12
2
0.1u/5% 0.1u/5% R235
TL074
135K/1%
TL074
D206
R205
1N4148
20k
R211
C223
0.1u
C204
18K
10u/16V /20%
C211
220p/10%
C249
0.15u/5% U202B
6
R215
7 9
R237 R244
5
10k
R238
10
10k 1% 10k 1%
20k
TL074
C237
0.022u/5%
+12.3V DZ206
sw201
2 5
1 4
R229
3 6 R240 R216 2.2v
10K
2M EG Q202 6.8k
SW-4
C1815
D208
1N4148
R241
4.7k
R253
1M EG
R227
22k Q203
C1815 R242
100k
C240
C239
R247
18k
100u/16V
R228
C228
4.7u/16V
22k
R243
0.1u/10%
100k
Q212
Q201 +12.3V
A 1015
C1815
D221 +15V
C229
D223 1N4001
R232 47u/25V
1N4001
1k
D214
C221
1N4148
0.1U
C231 DZ202
10u/16v
12V
C219
D211
220u/25V
1N4001 -12.3V
R233 C230 C222
1k
Q210 47u/25V 0.1U
A 1015
D222
DZ203 1N4001
12V
-15V
JUM P
4 5
C235 10u/16V /20%
0.1u/5%
U202A
2
V R201
R217 R248
20KB
14 3
TL074
10k 18k
-15V 0.047u/5%
C238
C206
C225
10u/16V /20%
0.1u
R236
10u/16v/20%
7.5K
C236
R221
C241
10k
1000p/50v/10%
U203D
U202D 9 D216
8
8 10
1N4148
TL074
R249
18k
TL074
U203C
13 D217
Q211 14
A 1015
12
STBY
1N4148
R252
TL074
R222
10k
27K
R223
10k C242
U201D
10u/16v/20%
9
8 st hi
10
play low
TL074
D212
1N4148
LED201
R257 R259 R261 R260
R2ED/GR2EEN
2k
1.2k 1k 15k 15k
R255
1 C1815 C208
B
Q215
47u/16V
D213
R270
R256 20k Q214
1.2k 1N4148
C1815
DZ204
2.2v
+12.3V
20
7
6
V R202
+15V
50KA
C205
C224
R245
0.1u
sw202
2
100k
1
3
C215 220p/10%
SW-4
C207
R258
U202C
1 13
14
5.1K
10u/16V /20% 12
R207
20K
R208
TL074
20k
+15V
+15V
5
R224 R266
C226 6
0.1u R263 10k 7.5K/1%
12meg
0.01u/5% C244
R213 R225
Q206
C1815
33k 10k
R239
470k R268 R269
Q208
C243
750/1%
750/1%
C1815
22u/25V /20%
-15V
C227
0.1u
D218
1N4148
D219
1N4148
Q213
R271 A 1015
+15V
1k
R262
30k
C248
R264
3.3k
47u
R265
Q205
Q207
C1815
C1815
39K
C247
0.01u
R251
51K
DSW-76 Section SYS-76HT
8
5
10k
R218
4
6
A
R219
C213
10k 220p/10%
220P/10% U203A
sw203
2 5 2
1 4 1
C214
3 6 3
R220
TL074
10k
SW-4
R206
20k
B
U203B
7
TL074
C246
R267 7.5k/1% R202
OUT
150R
C245 47u/25V /20%
R246
Q209
0.01u/5% 100K
C1815
R230 D220
22K 1N4148
R254
1M EG
C
LI M IT
-15V
MU TE
P202
LI M IT 1
MU TE 2
-15V
-15V 3
D
AGND 4
+15V
+15V 5
PTC 6
OUT 7
*
TO P101
DZ205
PTC
2.2v +0.1V
SIGNAL LINE
E
AMP UNIT