1
2
3
45
6
7
8
A
B
C
D
E
SCHEMATIC DIAGRAMS (10/11)
AVR-1804/884 / AVC-1880
88
SCHEMATIC DIAGRAMS (10/11)
FRONT UNIT / SWITCH UNIT / HEAD
PHONE UNIT / FRONT-S-VIDEO UNIT
88
REC SIGNAL LINE
SPK_BBAND
SURR_BACK
DOLBY/DTS
5CH/6CH_STEREO
SHIFT
DIRECT/STEREO
PRESET_DW
PRESET_UP
TUNING_DW
SPK_A
P_SW
GND
KEY3
FUN_DW
FUN_UP
+5V
H/P SENSE
D.DIGITAL
PCM-IN
AAC
ZONE2
AUTO
STBY
JAPAN ONLYE3 ONLY
STATUS
EXT.IN
ANALOG
INPUT_MODE
SURR_MODE
SURR_PARA
DIMMER
E2:RT
E2:PTY
E2:RDS
VIDEO_SEL
TONE_DEFEAT
TONE_CONTROL
TUNING_UP
DTS-S
DTS-IN
SPK_B
SPK_A
SB_OUTPUT
ENCODER
MASTER VOL
FUNCTION S/W BOARD
REC_SELECT
E3:MAIN
SOURCE
FUN_DW
GND
P_SW
KEY3
FUN_UP
+5V
H/P SENSE
ENCODER
FUNCTION SEL
H/P SENSE
GND
P_SW
GND
4
3
21
SELECT
ENCODER
H/P / POWER S/W BOARD
21
H/P SENSE
GND
H/P_L
P_SW
34
GND
GND
H/P_R
KEY_IN1
2090_DATA
VOL_DOWN
VOL_UP
SEL_DOWN
SEL_UP
KEY_IN3
KEY_IN2
STBY_LED
RLY_POWER
TO CPU/VOL UNIT
CPU_+5.6V
-VKK
CPU_GND
CPU_GND
H/P SENSE
FUNCTION_UP
REMOCON
FUNCTION_DOWN
FL_DRV_RST
FL_DRV_CE
FL_DRV_DATA
FL_DRV/2090_CLK
OPEN
FROM TRANS UNIT
FIL2
FIL1
FRONT BOARD
JACK301
S-VIDEO FRONT
GND
GND
FRONT_VDO_IN
FRONT_AUDIO_R
FRONT_AUDIO_L
V-GND
GND
C-SIGNAL
Y-SIGNAL
R304A
2K4
R305A
3K3
R306A
4K7
R308A
12K
SW309A
SW308A
SW307A
SW306A
SW305A
R307A
7K5
SW309C
R308C
12K
C310
47N
47K
R354
R306C
4K7
SW305C
R304C
2K4
R305C
3K3
R307C
7K5
SW308C
SW307C
SW306C
SW305B
R304B
2K4
1234567
CP391
R301A
1K2
R302A
1K5
R303A
1K8
SW304A
SW301A
SW302A
SW303A
LED305
HL50RDRF4T
680
R341
LED307
HL50RDRF4T
R343
680
680
R342
LED302
HL50RDRF4T
HL50RDRF4T
LED306
C319
47/16
C309
22N-K
680
R345
680
R310
LED303
HL50RDRF4T
LED311
HL50RDRF4T
VDD
Q11
Q10
Q9
Q8
Q7
Q6
Q5 Q4
Q3
Q2
Q1
Q0
CLK
DATA
VSS
12345678
910111213141516
BU2090F
IC302
680
R346
LED304
HL50RDRF4T
680
R362
R301C
1K2
R302C
1K5
R303C
1K8
R301B
1K2
R302B
1K5
R303B
1K8
SW301C
SW302C
SW303C
SW304C
SW302B
SW303B
SW304B
Q306
DTC114EK
ZD303
MTZ5.6B
ZD302
MTZ5.6B
C302
10N-K
C301
10N-K
100
R302
100
R301
C318
47N(EB)
C317
47/16
LED308
HL50RDRF4T
LED309
HL50RDRF4T
680
R348
680
R347
C321
47N(EB)
C313
10N
56K R349FL
C328
47N-K
L301
10UH
C320
1/50
LED301
HL50RDRF4T
680
R340
LED310
HL50RDRF4T
680
R363
Q304
DTC144EK
Q305
DTA144EK
56K R364FL
56K
R363FL
56K R362FL
56K R361FL
56K R360FL
56K R359FL
56K R358FL
56K R357FL
56K R356FL
56K R355FL
56K R354FL
56K R353FL
56K R352FL
56K R351FL
56K R350FL
56K R365FL
G11
G1
G10
G9
G8
G7
56K R366FL
56K R367FL
56K R368FL
56K R369FL
56K
R370FL
56K R371FL
56K R372FL
56K R373FL
56K R374FL
56K R375FL
G6
G5
G4
G2
G3
D307
KDS160
R307 47K
47KR303
R304 47K
VEC301
C308
30P-J
470R319
470R318
470R317
470R316
1K
R353
10K
R352
17
33
AM35
G16
G15
G14
G13
G12
G11
G10
G9
G8
G7
AA3
AA2
AA1
AM34
AM32
AM31
AM30
AM29
AM28
AM27
AM26
AM25
AM24
AM23
AM22
AM21
AM20
AM19
AM18
AM16
AM15
AM14
AM13
AM12
AM11
AM10
AM9
AM8
AM7
AM6
AM5
AM4
AM3
AM2
AM1
DT
CLK
CE
RST
VDD
OSC1
OSC0
VSS
TEST
VFL
G1
G2
G3
G4
G5
G6
64
63
62
61
60
59
58
57
56
55
54
53
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
16151413121110987654321
IC301
LC75721NE
AM1
AM2
AM3
AM4
AM5
C306
100P-J
C307
100P-J
C305
1N-K
SW393
SW391
1234567
CN391
100
R330
100
R331
R391
3K3
R392
4K7
C303
10N-K
ZD305
MTZ5.6B
ZD304
MTZ5.6B
100
R305
C304
10N-K
100
R306
C331
10N
C332
10N
ZD311
MTZ5.6B
R393
7K5
VEC303
ZD310
MTZ5.6B
47KR329
R328
47K
C301F
1/50
CN392
47KR308
VEC302
R903H
470(2)
CP392
3 2 1
CN901
C902H
1N
R904H
470(2)
R314
470
1K
R353H
1
3
7
5
2
4
6
8
9
11
13
15
17
19
10
12
14
16
18
20
21
22
CN303
L302
100UH
ZD301
MTZ6.8B
R344
10K
R337
47K
10K
R361
C325
100P-J
R313
470
10/50
C316
1N4148
D304
R335
10
RMC301
REMOTE
C312
47N-Z
DTA144EK
Q203
C322
47/10
AM1
D302
1N4148
D303
1N4148
1K
R356
3K3
R355
Q307
DTC114YK
2SA933S
Q218
321
CH
TUNED
RDS
1110987654 12131415161718
STEREO
AUTO
REC
ZONE2 VCR
PHONO
-1
CD
-3
-2
TUNER
212019 22 23 24 25 26 27 28 29 323130 33 34 35 36 37 38 39 40 41 42
V_AUX
AUX
CDR
DVD
TAPE
VDP
/
/
-1
TV / DBS
-2
43 44 45 46 47 48 49
DIGITAL
DIGITAL ANALOG
PRO LOGIC II
50 51 52 53 54 55 56 57 58
16-ST-66GNK
FLT301
C323
100N(EB)
321
CP303
AM8
AM7
AM6
AM5
AM3
AM2
AM9
AM4
AM16
AM15
AM14
AM13
AM12
AM11
AM10
AM17
AM18
AM19
AM20
AM21
AM22
AM23
AM24
AM25
AM26
AM27
G16
AA3
AA2
AA1
AM35
AM34
G15
AM32
AM31
AM30
AM29
AM28
AM33
G10
G11
G12
G13
G9
G8
G14
G1
G2
G3
G4
G5
G6
G7
JK901
C901H
1N
C
Y
G901
1/50
C903H
C904H
22N
R336
75
C326
4.7/50
C327
4.7/50
R349
470
470
R338
C324
4.7/50
436521
CN302
R351
2.2M
R350
2.2M
213
CN605
75
R359
R360
75
C333
4.7/50
C334
4.7/50
AM9
AM10
AM11
AM12
AM13
AM14
AM15
AM16
AM6
AM7
AM8
D305
KDS160
Q303
DTC144EK
AM20
AM21
AM22
AM23
AM24
AM19
AM18
DTA144EK
Q300
AM17
DTA144EK
Q301
KDS160
D306
DTC144EK
Q302
AA2
AA3
G16
G15
G14
G13
G12
56K R376FL
56K R377FL
56K R378FL
56K R379FL
56K R380FL
56K R381FL
56K R382FL
56K R383FL
56K R384FL
56K R385FL
56K R386FL
56K R387FL
56K R388FL
AA1
AM35
AM34
AM33
56K R389FL
56K R390FL
56K R391FL
56K R392FL
56K
R393FL
56K
R394FL
56K R395FL
56K R396FL
56K R397FL
56K R398FL
56K R399FL
56K R400FL
56K R401FL56K
R402FL
C314
47N(M)
AM25
AM26
AM27
AM28
AM29
AM32
AM31
AM30
C315
1/50
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