![Harman Kardon AVR 370 Service Manual Download Page 179](http://html1.mh-extra.com/html/harman-kardon/avr-370/avr-370_service-manual_4112558179.webp)
9
9
(VOLUME&FILTER)
AVR270/370
7
6
5
4
3
2
1
REVISION
SCHEMATIC DIAGRAM
SHEET
MODEL
1437SCPZ
DRAWING NO
DESIGN
CHECK
APPROVE
A
D
C
6
A
B
C
D
5
4
3
2
1
B
DAC-BR
DAC-BL
DAC-SR
DAC-SL
DAC-SW
DAC-C
DAC-R
DAC-L
FROM CODEC
VOL-L
VOL-R
VOL-C
VOL-SL
VOL-SR
VOL-BL
VOL-BR
VOL-L
VOL-R
VOL-C
VOL-SL
VOL-SR
VOL-SBL
VOL-SBR
VOL-SW
DAC-L
DAC-R
DAC-C
DAC-SW
DAC-SL
DAC-SR
DAC-SBL
DAC-SBR
LOUT
ROUT
COUT
LSOUT
RSOUT
LBOUT
RBOUT
SWOUT
DCAP_1
DCAP_2
GND
DATA
CLK
DC
AP
_3
REC
_R
REC
_L
GND
*1)
R
1IN |
R
B2IN
*1)
L1
IN |
L
B2IN
*1)
R
2IN |
R
1IN
*1)
L2
IN |
L
1IN
*1)
R
3IN |
R
2IN
*1)
L3
IN |
L
2IN
*1)
R
4IN |
R
3IN
*1)
L4
IN |
L
3IN
*1)R5IN | R4IN
*1)L5IN | L4IN
DC
AP
_4
*1)R6IN | R5IN
*1)L6IN | L5IN
*1)R7IN | R6IN
*1)L7IN | L6IN
*1)R8IN | R7IN
*1)L8IN | L7IN
DCAP_5
MONOIN
DCAP_6
ADC_R
ADC_L
GND
LI
N
RI
N
CI
N
LSI
N
RSI
N
LBI
N
RBI
N
SW
IN
V-
V+
DC
AP
_7
DC
AP
_8
ECO DESIGN
ZONE2 VOLUME
AGND
IN1
AGND
AGND
VCC
VEE
IN2
CLK
DATA
MUTE
DGND
SEL
OUT2
OUT1
<=> JACK PCB
SW2
Sub-Woofer VOLUME
AGND
IN1
AGND
AGND
VCC
VEE
IN2
CLK
DATA
MUTE
DGND
SEL
OUT2
OUT1
SW1
*AVR270
R2335: 1.5K , R2334: 2.2K
AVR270 ONLY
AVR370 ONLY
Y.W.Y
L.J.H
K.M.S
11.12.27
12.08.02
11.12.27
TO AMP B
'D
SUB
SL
C
SR
FL
SBL
FR
SBR
SUB2
TUN_L
TUN_R
12.08.02
MULTI. LAB
ANAM
ISSUE
PMP
DSP DOWNMIX REC GAIN
CUP12457Z
REC_L
REC_R
1
2
3
4
5
6
7
8
A
+
-
B
+-
A O
U
TP
U
T
A-
IN
PU
T
A+
IN
PU
T
V-
B+
IN
PU
T
B-
IN
PU
T
B O
U
TP
U
T
V+
IC
2202
C
V
IA
Z4580M
T
R
-E
1
R2207
3.3K
R2206
3.3K
C
2206
2700P
C
2202 2700P
R2212
1.5K
R2208
1.5K
R
2205
6.
8K
R2213
6.8K
C2209
390P
C
2204
390P
C2207
0.
1
C2211
0.
1
R2215
100
C2214
10/16V
R2216
100K
C
2213
0.
01u
F
R
2204
6.
8K
C
2201 2700P
C
2205
2700P
R2203
1.5K
C
2203
390P
R2211
1.5K
R2209
6.8K
C2208
390P
R2218
100
C2210
10/16V
R2217
100K
C
2212
0.
01u
F
R2202
3.3K
R2201
3.3K
R2214
0
R2210
0
1
2
3
4
5
6
7
8
A
+
-
B
+-
A O
U
TP
U
T
A-
IN
PU
T
A+
IN
PU
T
V-
B+
IN
PU
T
B-
IN
PU
T
B O
U
TP
U
T
V+
IC
2203
C
V
IA
Z4580M
T
R
-E
1
R2225
3.3K
R2224
3.3K
C
2220
2700P
C
2216 2700P
R2230
1.5K
R2226
1.5K
R
2223
6.
8K
R2231
6.8K
C2223
390P
C
2218
390P
C2221
0.
1
C2228
0.
1
R2233
100
C2227
10/16V
R2236
100K
C
2226
0.
01u
F
R
2222
10K
C
2215
0.
068u
C
2219
0.
068u
R2221
1.5K
C2217
8200P
R2229
1.5K
R2227
10K
C2222
8200P
R2234
100
C2224
10/16V
R2235
100K
C
2225
0.
01u
F
R2220
3.3K
R2219
3.3K
R2232
0
R2228
0
1
2
3
4
5
6
7
8
A
+
-
B
+-
A O
U
TP
U
T
A-
IN
PU
T
A+
IN
PU
T
V-
B+
IN
PU
T
B-
IN
PU
T
B O
U
TP
U
T
V+
IC
2204
C
V
IA
Z4580M
T
R
-E
1
R2243
3.3K
R2242
3.3K
C
2234
2700P
C
2230 2700P
R2248
1.5K
R2244
1.5K
R
2241
6.
8K
R2249
6.8K
C2237
390P
C
2232 390P
C2235
0.
1
C2242
0.
1
R2254
100
C2241
10/16V
R2253
100K
C
2240
0.
01u
F
R
2240
6.
8K
C
2229 2700P
C
2233
2700P
R2239
1.5K
C
2231 390P
R2247
1.5K
R2245
6.8K
C2236
390P
R2251
100
C2238
10/16V
R2252
100K
C
2239
0.
01u
F
R2238
3.3K
R2237
3.3K
R2250
0
R2246
0
1
2
3
4
5
6
7
8
A
+
-
B
+-
A O
U
TP
U
T
A-
IN
PU
T
A+
IN
PU
T
V-
B+
IN
PU
T
B-
IN
PU
T
B O
U
TP
U
T
V+
IC
2205
C
V
IA
Z4580M
T
R
-E
1
R2261
3.3K
R2260
3.3K
C
2248
2700P
C
2244
2700P
R2266
1.5K
R2262
1.5K
R
2259
6.
8K
R2267
6.8K
C2251
390P
C
2246
390P
C2249
0.
1
C2256
0.
1
R2272
100
C2255
10/16V
R2271
100K
C
2254
0.
01u
F
R
2258
6.
8K
C
2243
2700P
C
2247
2700P
R2257
1.5K
C
2245
390P
R2265
1.5K
R2263
6.8K
C2250
390P
R2269
100
C2252
10/16V
R2270
100K
C
2253
0.
01u
F
R2256
3.3K
R2255
3.3K
R2268
0
R2264
0
D2202
HVD1SR159-200
D2201
HVD1SR159-200
OUT
GND
VIN 1
2
3
IC2215
CVILM7808RTRL
3
1
2
IN
GND
OUT
IC2216
CVILM7908RTRL
C2322
0.
1
C2324
0.
1
C2323
0.
1
C2325
0.
1
R
2355
3.
9K
R
2354
3.
9K
R
2374
3.
9K
R2375
3.9K
R2368
3.9K
R
2369
3.
9K
1
2
3
4
5
6
7
8
A
+
-
B
+-
A O
U
TP
U
T
A-
IN
PU
T
A+
IN
PU
T
V-
B+
IN
PU
T
B-
IN
PU
T
B O
U
TP
U
T
V+
IC
2217
C2330
10/16V
C2331
10/16V
R
2351
47K
R
2352
47K
C2329
0.
022u
C2328
0.
022u
R2350
270
R2353
270
R2373
560
R2370
560
R2380
560
R2365
560
C2327
10/16V
C2326
10/16V
C2332
10/16V
C2334
10/16V
C2333
10/16V
C2335
10/16V
C2336
10/16V
6
5
4
3
2
1
IC
2218
H
VT
KT
C812T
B
6
5
4
3
2
1
IC
2221
H
VT
KT
C812T
B
6
5
4
3
2
1
IC
2222
H
VT
KT
C812T
B
R
2357
3.
9K
R
2358
3.
9K
6
5
4
3
2
1
IC
2219
H
VT
KT
C812T
B
R2356
270
R2359
270
C2302
100/
16V
C2304
100/
16V
C2305
0.
1
C2303
0.
1
R
2326
100
R
2327
100
C2295
100P
C2294
100P
52
51
50
49
48
47
46
45
44
43
42
41
40
39
38
37
36
35
34
33
32
31
30
29
28
27
26
25
24
23
22
21
20
19
18
17
16
15
14
13
12
11
10
9
8
7
6
5
4
3
2
1
IC2201
CVINJU72340AFH2
C2288
100/
16V
C2297
100/16V
C2296
100/16V
C2301
100/16V
C2300
100/16V
C2299
100/16V
C2298
100/16V
C2292
10/
16V
C2293
10/
16V
C2291
100/
16V
8
7
6
5
4
3
2
1
IC2223
CVINJU7181RB1
C2281
10V/22uF
R2319
10K
C2287
10/16V
R2320
100K
C2283
10P
R
2321
22K
C2
28
2
1000P
R23
17
220K
C2289
10/
16V
C2290
10/
16V
R2322
100K
R2323
100K
R2324
100K
R2325
100K
R2363
3.9K
6
5
4
3
2
1
IC
2220
H
VT
KT
C812T
B
R
2364
3.
9K
R2360
270
R2362
270
C2270
0.1
C2269
0.1
R
2298
100
R
2303
100
C2271
10/16V
C2272
10/16V
R
2304
47K
R
2305
47K
R
2297
47K
R
2296
47K
C2267
10/16V
C2265
10/16V
C2266
150P
R2301
5.6K
C2268
150P
R2299
5.6K
R
2302
1.2K
R
2300
1.2K
R2292
560
R2295
560
R
2290
100K
R
2291
100K
1
2
3
4
5
6
7
8
A
+-
B
+
-
A O
U
TP
U
T
A-
IN
PU
T
A+
IN
PU
T
V-
B+
IN
PU
T
B-
IN
PU
T
B O
U
TP
U
T
V+
IC
2209
CV
IA
Z4580M
TR
-E
1
R
2294
4.
7K
R
2293
4.
7K
6
5
4
3
2
1
IC
2208
H
V
T
K
T
C
812T
B
C2276
10V
/22u
F
C2277
10V
/22u
F
R2307
100
R2308
100
1
2
3
4
5
6
7
8
9
10
11
12
13
14
IC2210
CVIBD3812F
R
2306
1.
8K
C2278
0.1
C2275
0.1
C2273
150P
C2274
150P
R2343
3.9K
R2341
560
C2319
1000P
C2317
0.022u
C2316
0.022u
R
2336
1.
2K
C2315
10/16V
R
2332
47K
R
2333
47K
R
2339
47K
R
2338
47K
R2337
5.6K
1
2
3
4
5
6
7
8
A
+
-
B
+-
A O
U
TP
U
T
A-
IN
PU
T
A+
IN
PU
T
V-
B+
IN
PU
T
B-
IN
PU
T
B O
U
TP
U
T
V+
IC
2212
R2345
560
6
5
4
3
2
1
IC
2213
HV
TKTC
8
1
2
TB
C2321
10/16V
6
5
4
3
2
1
IC
2214
H
V
T
K
T
C
812T
B
R
2342
3.
9K
R
2347
3.
9K
C2314
10/16V
C2310
10V
/22u
F
C2309
10V
/22u
F
R2330
100
R2329
100
1
2
3
4
5
6
7
8
9
10
11
12
13
14
IC2211
CVIBD3812F
R
2331
1.
8K
C2308
0.
1
C2311
0.
1
C2313
150P
C2312
150P
C2306
10/16V
C2307
10/16V
R2328
100
C2318
1000P
R2335
5.6K
R
2334
1.
2K
C2320
10/16V
R2340
560
R
2346
3.
9K
R2344
560
R
2287
4.
7K
R
2288
4.
7K
6
5
4
3
2
1
IC
2207
H
VT
KT
C812T
B
Q
2201
R2289
100K
C2257
10/16V
R2284
270
R2286
270
R
2348
47K
R
2349
47K
R
2361
47K
R
2366
47K
R
2367
47K
R
2371
47K
R
2372
47K
R2377
0
R2376
0 (OPEN)
R2379
0
R2378
0 (OPEN)
14
13
12
11
10
9
8
7
6
53
42
1
CN
53
C2258
10/16V
C2404
0.
1
C2403
0.
1
R
2404
100
R
2403
100
C2401
10/16V
C2402
10/16V
R
2401
47K
R
2402
47K
R
2410
47K
R
2409
47K
C2408
10/16V
C2407
10/16V
C2405
150P
R2407
5.6K
C2406
150P
R2408
5.6K
R
2405
1.
2K
R
2406
1.
2K
1
2
3
4
5
6
7
8
A
+-
B
+
-
A O
U
TP
U
T
A-
IN
PU
T
A+
IN
PU
T
V-
B+
IN
PU
T
B-
IN
PU
T
B O
U
TP
U
T
V+
IC
2224
CV
IA
Z4580M
TR
-E
1
C2415
560P
C2416
560P
C2414
560P
C2413
560P
R2411
0
27
26
20
21
23
22
24
25
19
18
16
17
15
14
13
12
11
10
9
8
7
6
5
4
3
2
1
WF
61
1
2
3
4
5
6
7
8
A
+
-
B
+-
A O
U
TP
U
T
A-
IN
PU
T
A+
IN
PU
T
V-
B+
IN
PU
T
B-
IN
PU
T
B O
U
TP
U
T
V+
IC
1711
C1755
0.
022u
C1754
0.
022u
C1760
10/16V
R
1817
47K
R1841
0
R
1842
1.
2K
(
O
PE
N)
R
1839
39K
R
1840
39K
R
2381
0
R
2382
0
D_FR-
D_FL-
D_SW-
D_FR+
D_FL+
D_SW+
D_CT+
D_CT-
D_SR-
D_SR+
D_SL+
D_SL-
D_BR-
D_BR+
D_BL+
D_BL-
+7V
-7V
+7V
-7V
+7V
-7V
+7V
-7V
-8V
+8V
-7V
+7V
-12V
+12V
+12V
AGND
AGND
AGND
AGND
AGND
FUNC_MUTE
FUNC_MUTE
SB_MUTE
SB_MUTE
FUNC_MUTE
FUNC_MUTE
+12V
-12V
SBR-OUT
SBL-OUT
SR-OUT
SL-OUT
HPR-OUT
HPL-OUT
L-OUT
R-OUT
FUNC_MUTE
FUNC_MUTE
+7V
-7V
M
AIN_V
O
L_
CL
K
M
AIN_V
O
L_
D
ATA
MIC_SIGNAL
ZO
NE
2_P
R
E_L
ZO
NE
2_P
R
E_R
SIGNAL_DETECT
REC_DOWNMIX_R
REC_DOWNMIX_L
+3.
3V
C
BRIDGECO_L
BRIDGECO_R
AGND
AGND
AGND
AGND
AGND
AGND
AGND
AGND
AGND
AGND
AGND
AGND
AGND
AGND
AGND
AGND
AGND
AGND
AGND
AGND
AGND
AGND
AGND
AGND
AGND
AGND
FUNC_MUTE
AGND
AGND
C-OUT
ZONE2_MUTE
ZONE2_MUTE
ZONE2_PRE_R
ZONE2_PRE_L
ZONE2_VOL_DATA
ZONE2_VOL_CLK
+7V
-7V
+7V
+12V
-12V
AGND
AGND
AGND
AGND
AGND
AGND
AGND
AGND
AGND
AGND
FUNC_MUTE
-12V
+12V
SW2-OUT
ZONE2_VOL_DATA
ZONE2_VOL_CLK
+7V
-7V
-7V
AGND
AGND
AGND
AGND
AGND
AGND
AGND
AGND
AGND
SW-OUT
AGND
PROTECT_IN
SW-OUT
SL-OUT
C-OUT
SR-OUT
L-OUT
SBL-OUT
R-OUT
SBR-OUT
POWER_MUTE
POWER_FAIL
+12V
AGND
SW2-OUT
TUNER_MUTE
-12V
AGND
AGND
AGND
AGND
AGND
AGND
AGND
AGND
AGND
AGND
AGND
AGND
AGND
AGND
AGND
AGND
POWER_HIGH
POWER_DOWN
MULTI_VOL_L
MULTI_VOL_R
ANA1_L
ANA1_R
ANA2_R
ANA2_L
REC_DOWNMIX_L
REC_DOWNMIX_R
DSP_DOWNMIX_L
DSP_DOWNMIX_R
+12V
-12V
AGND
AGND
AGND
AGND
CURRENT_DET
FAN1_ON
FAN2_ON
AGND
AGND
AGND
AGND
-12V
AGND
AGND
+12V
AGND
AGND
AGND
AD_LIN
AD_RIN
-12V
AGND
IPHONE_MUTE
Summary of Contents for AVR 370
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