Denon AVR-2105 Service Manual page 263

Q Q
1 2
3 7 6 3 1 5 1 5 0
SCHEMATIC DIAGRAMS (16/16)
CN301
R362 10K
R361 10K
C340
100P-J
C325
100P-J
1 2 3 4 5 6 7 8
IC302
BU2090F
16 15 14 13 12 11 10 9
C309
22N-K
C319
47/16
T E
L 1 3 9 4 2 2 9 6 5 1 3
E3 ONLY
SW301C
TONE_CONTROL
SW302A SW302C
DIMMER TONE_DEFEAT
E2:PTY
SW303A SW303C
VIDEO_SEL SURR_MODE
E2:RDS
SW304A SW304C
TUNING_UP SURR_PARA
SW305A SW305C
DIRECT/STEREO
TUNING_DW
SW306A SW306C
PRESET_UP 5CH/6CH_STEREO
SW307A SW307C
PRESET_DW DOLBY/DTS
SW308A SW308C
SHIFT SURR_BACK
SW309A SW309C
BAND SPK_B
R354
47K
C310
w w w
.
3 4
TO CPU UNIT
1/13
CP303
1
ZD301
MTZ6.8B
Q218
2SA933S
RMC301
REMOTE
Q203
KRA104S
R335
10
Q307
KRC107S
JAPAN ONLY
Q308
Q306
KRA102S
KRA102S
SW302B
R301
EXT.IN
100
SW303B
ANALOG
SW304B
R302
INPUT_MODE
100
SW305B R306
100
SPK_A
SW306B
STATUS
E2:RT
R305
100
R330
ZD311
100
9 RED_LED MTZ5.1B
RED_LED 9
8 GREEN_LED
GREEN_LED 8
7 FUN_DW ZD310
FUN_DW 7 R331
100 MTZ5.1B
6 FUN_UP
FUN_UP 6
5 +5V
5
+5V
4 P_SW
P_SW 4
47N-Z
3 GND
GND 3
R392
2 KEY3
2
KEY3
R391
1 H/P SENSE 7K5
1
H/P SENSE 4K7
CN391 CP391
PWR S/W LED
R346 LED901
180
x a o R357
300 y
R358
270
CB904
i BEAD
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5
8
FROM TRANS UNIT
2 3
FRONT BOARD
FLT301
16-ST-42GNK
TUNED STEREO REC PHONO CD AUX
TUNER
RDS AUTO ZONE2 VCR -1 -3 V_AUX
-2
CH
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31
Q305
KRA104S
G1
48 47 46 45 44 43 42 41
G6 49 G6
Q Q
G5 50 G5
3 7 6 3
Q304 G4 51 G4
KRC104S
G3 52
G3
D307
G2 53 G2
KDS160
54 G1 IC301
55 VFL
LC75721NE
56 TEST
C311 57 VSS
R315 10K
30P-J
58 OSC0
59 OSC1
60 VDD
R316 470
61 RST
R317
470
62 CE
R318 470
63 CLK
R319
470
64 DT
1 2 3 4 5 6 7 8
C307
R304
100P-J
47K
C306
100P-J
C341
100P-J
C305
R303
1N-K
47K
R307
47K
AC IN
R308
POWER S/W BOARD
47K
AC OUT
CN931
SW902
FUNCTION SEL
R328
ENCODER
47K
CP392
CN392 H/P SENSE
VEC303 R905H
R329 H/P SENSE GND
47K
GND
GND
R903H 470(2)
GND
R904H 470(2)
H/P_L C906H
R393 CB903 10N
FROM MAIN B'D GND
BEAD
H/P_R
12K
CN901
H/P BOARD
OPTICAL INPUT B'D
FUNCTION S/W BOARD
OPTICAL INPUT B'D
C904H
22N
1
u 1 6 3
IC803 2
C903H 3
100N
G903
.
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6 7
9 2 4 9
DVD / VDP TV / DBS
CDR / TAPE -1 -2
PRO LOGIC II
DIGITAL
DIGITAL ANALOG
32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58
40 39 38 37 36 35 34 33
AM32 32 AM32
AM31 31 AM31
1 5 1 5 0 8 9 2 4
AM30 30 AM30
29 AM29
AM29
AM28 28 AM28
AM27 27 AM27
AM26
AM26 26
AM25 25 AM25
AM24 24 AM24
AM23
AM23 23
AM18
AM22 22 AM22
Q300
AM21 21 AM21
KRA104S
AM20
AM20 20
AM19 19 AM19
AM18 18
Q303
D305
17 17 KRC104S
KDS160
9 10 11 12 13 14 15 16
AM17
Q301
KRA104S
D306 Q302
KDS160 KRC104S
JACK301
R349
470
V.AUX IN
BD303
BEAD R338
470
G906
100
C326
22/25
BD304
BEAD
JK902
C905H
100N G905
BD301
BEAD
m
GP301 JACK301
S-VIDEO FRONT
FRONT_OPT_IN
c o
DGND
TO CPU UNIT
DSP_+5V
1/13 SCHEMATIC DIAGRAMS (16/16)
DSP_GND
L301O CN606
4.7UH
FRONT UNIT / SWITCH UNIT / HEAD
PHONE UNIT / FRONT-S-VIDEO UNIT/
OPTICAL INPUT UNIT
SIGNAL LINE
AVR-2105/885 / AVC-1890
8
8 2 9 9
7/13
A
B
9 8 2 9 9
C
D
V.AUX_R
GND
V.AUX_L
V-GND
V.AUX_VIN
CN302
TO CPU UNIT
1/13
C329
22/16
TO CPU UNIT
E
1/13
GND
1
2 Y-SIGNAL
3 C-SIGNAL
C330
22/16 CN605