Denon AVR-1804 Service Manual

23
23
AVR-1804/884 / AVC-1880
FOIL SIDE
5 6 7 8
2090_781_DATA
2090 _CLK
VIDEO_GND
10
9 8 4 5 6 7 3 2 1
+5V
TONE_DFT
GND
REM_DATA
Y_SIG C_SIG V.AUX_VIN
12 13 14 15
9
-15V
10
12 13 14 15
TC9274_73_DATA
TC9274_STB
TC9273_CE
TC9274_73_CLK
6 7 8
11
V.AUX_R
MULTI_MUTE
GND
GND
+15V
5 6 7 8
ERR_MUT
GND
GND
FRO_OPT_IN
DSP_GND
1 2 3 4 5 6 7 9
10
11
8
1
2 3 4 5
V.AUX_L
GND GND
TUNER_L
TUNER_R
1 2 3 4
89_EMPHA
89_AUDIO
89_INT
ERR_MU_OFF
1837_RST
1837_CE
89057/1837_SDOUT
89057/1837_SCLK
89057_CE
M32_CLK
M32_SDOUT
M32_CS
M32_RST
89057_RST
EPROM_RST
89057_SDIN
M32_SDIN
M32_INTREQ
DSP_+5V
ANA_R
GND
GND
HPF_L
HPF_R
AD_R
GND
AD_L
GND
ANAL_L
GND
2 1 3 4
11
12
13
14 15
1
5
7
16
10
9 8 6 4 3 2
19-TUNER_L
11-GND 15-GND
16-TUNER_R
18-GND
12-DET_OUT
13-NC
12
16
15
14
13
9-+15
8-TUNED
7-ST
6-TU_MUTE
5-PLL_DOUT
3-PLL_DATA
4-PLL_CLK
2-PLL_CE
1-9K/10K
4 3
2 1
10
15
13
8
9
10
11
5
6
7
TC9482
5
8
9
10
15
1
BU2090F
1
5
20
25
12 13 14 15
SR
GND
SL
GND
C
SR
C
SW
FL
GND
ANAL_L
FR
GND
ANAL_R
+15V -15V
GND GND
R216
E1
N
E2,EK
E3
ARE_OPT
10K
10K
18K
OPEN
OPEN
15K
10K
10K
19
18
17 16 15
14
13
12
11
10
9 8 7 6 5
R218
GND
GND
11-FR
10-GND
9-FL
2 3
AVR1803
SET_OPT
6 5 4 3 2 1
CVIDEO_DET
74781_CS
74781_SCLK
2090_CLK2 SVIDEO_DET SMON_DET
GND GND
10K
10K
18K
OPEN
OPEN
15K
10K
10K
R219R217
4 1
1803RDS
1603RDS
AVC1570
SL
SB
60
35
30
25
20
5
1
50
45
40
10
15
55
LC75721NE
OUT
VCC
GND
13
57
13
151719
9
11
14
12 2
4
6
8
10
1618
20
23
22
1-KEY1 2-KEY2
4-SEL_UP
6-VOL_UP
7-VOL_DW
9-FL_CLK
10-FL_DATA 3-KEY3
5-SEL_DW
11-FL_CE
12-STBY_LED
14-FL_RST
15-REMOCON
16-FUNC_UP
17-FUNC_DW
18-H/P_SENSE
19-GND 20-GND
21-VKK
22-+5.6V
8-2090_DATA
13-RLY_PWR
65
70
75
80
81
85
90
95
100
1
1-SL
2-GND
MULTI_SB_RLY
9459_STB8
7
35
30
25
40
10
20
5
1 2 3 6 5 4
9459_CLK
9459_DATA
GND
MULTI_SBOUT
GND
DSP_SB_OUT
8-GND
7-SW
6-GND
5-C
4-GND
3-SR
11
REMOCON
FUNC_UP
FUNC_DW
4
2090_DATA
FL/2090_CLK
FL_DRV_DATA
FL_DRV_CE
STBY_LED
RLY_PWR
10
9
8
7
6
5
3
2
1
FL_RST
45
50
VOL_DW
VOL_UP
SEL_DW
SEL_UP
KEY3
KEY2
KEY1
19
12
13
14
15
17
16
18
55
60
3
1
2 4
+15V -15V
SB
GND
6 5 9
10
7 8
11
GND
FR
GND
FL
GND
SW
SCREW 3*17
SCREW 3*17
4
5
6
7
8
9
3
2
1
-VKK
+5.6V
GND
GND
H/P_SENSE
9184_DAT
9184_CLK
RLY_SPK_B
PRE_RET_GND
+15V
-15V
SB_MUTE
TONE_DFT
JACK301
1-SW_MUTE
2-MUTE_+B
9184_CE
JACK301
20
1
11
10
OUT
VCC
GND
7-RLY_H/P
19-MUTE_PWR
18-VKK
5-RLY_SURR
6-RLY_CNT
8-RLY_POWER
9-CNT_MUTE
10-FRNT_MUT
11-SUR_MUT
14-+5V(DSP)
17-PROTECT
4-RLY_S_A
16-PWR_DW
15-DSP_G
13-CPU_G
12-+5.6V
C303O
3-RLY_S_SB
R360
R359
R251
J340
D205
C213FL
R210FL
R255
R210FR C213FR
R213FR
R217FR
C215
C214
R217FL
C245
C248
R348
R347
C231
C229 C228
C230
C242
R237
R245SL
R265
R266
C234
C233
C232
R214FR
C250
R215FR
IC204
R245C
IC302
R344 C325
R361
C309
R245SR
R245FR
CP555
D207
R221SW
C216
R220SW
J342
C218FL
C218FR
R224SW
C217
R216FR
C213
R223SW
R214FL
R215FL
R245FL
R245SW
R216FL
C211SW
R271
R269 R270 R268
J324
C247
C239
J343
R222SW
C212SW
R303B
Q306
R345
C312
R346
R342
R343
R337
R310
Q203
R302B
R301B
C328
R340
R341
R362
R363
Q302
Q301
R356FL R357FL R365FL
R349FL
R360FL
R367FL R366FL
R363FL R364FL
R355FL
R358FL
R359FL
R362FL R361FL R354FL
R353FL
R351FL R352FL R350FL R368FL R369FL R370FL R373FL R372FL R371FL
R376FL
R375FL R374FL
R378FL
R380FL R381FL
R382FL
R377FLR379FL
R390FL R389FL R388FL R387FL R386FL R385FL R384FL R383FL
R304A
D305
D306
Q303
Q300
IC301
Q304
D307
C308
R352
R302A
Q305
C305
C306
C307
R397FL R396FL R395FL R394FL R393FL R392FL R391FL R402FL R401FL R400FL R399FL R398FL
R356
Q307
R355
R353
C303O
IC201
J325
R267
C249
J372
R211
R252
R253
Q204
R201V
R261
R264 R263
R216
R217
Q201
C203
D209
R201
C202
R407
R202
R219
R218
R205
Q202
R220
R208
R206
R349
R351
R350
R336
R338
R359
R360
R262
C210
R225
C211
C212
IC202
D206
R224
R223

Denon AVR-1804 Specifications

General

Tuner	AM/FM
Response Bandwidth	10 Hz - 100 kHz
Signal-To-Noise Ratio	100 dB
Total Harmonic Distortion	0.08%
Input Impedance	47 kOhm
Input Sensitivity	200 mV
Surround Sound	Dolby Digital, DTS, Dolby Pro Logic II
Connector Type	RCA
Dimensions	434 x 168 x 391 mm