Denon AVR-2105 Service Manual

20
AVR-2105/885 / AVC-1890
TA1270BF (IC1154)
39
40
41
42
43
44
45
46
47
48
1
DAC1
Y INPUT
DAC Vcc (5V)
C Vcc (5V)
UV/CbCr SW
fsc OUTPUT
1HDL CONT
SECAM CONT
B-Y/Cb OUTPUT
R-Y/Cr OUTPUT
4.43MHz
X’tal
2
M-X’tal
3
3.58MHz
X’tal
4
APC
5
C GND
6
CHROMA
OUTPUT
7
V-SEP
8
SYNC.
INPUT
9
SYNC.
OUTPUT
10
AFC
FILTER
11
SYNC.
GND
12
32fh VCO
13
VD
OUTPUT
14
HD
OUTPUT
38
DAC2
37
Y OUTPUT
36
GND
35
DAC TEST
34
SDA
33
SCL
32
Ys (TH=0.7V HI; 1IN/LOW; 2IN)
31
R-Y1 INPUT
30
B-Y1 INPUT
29
Y1 INPUT
28
I
2
C
GND
27
R-Y2 INPUT
26
B-Y2 INPUT
25
Y2 INPUT
24
23
22
21
20
19
18
17
16
15
SW GND
ADRS SW
R-Y/R
OUTPUT
B-Y/B
OUTPUT
Y/G
OUTPUT
SW
Vcc (9V)
SYNC
Vcc (9V)
CP/HP
INPUT
Dig GND
SCP
OUTPUT
DAC2
DAC1
fsc
Y DL
Y DL
SW
SW
PEDESTAL
CLAMP
1H DL
CONTROL
SECAM
CONTROL
CbCr / UV
SW
fsc
TRAP
OFFSET
SW
LPF / fsc
TRAP
BPF H. AFC H C / D
32fH
VCO
V C / D
ACC
TOF
SCP
SW
APC
P / N ID
SYSTEM
CW
MATRIX
TINT
DEMO
CHROMA
BLK
NOSE
DET
YUV RGB
MATRIX
CP / HP
IN
SW
V SEP
SYNC
SEP
SUB-COLOR
VCXO
SUB-
CONTRAST
Y OFFSET
SW
DAC
TEST
Ys
I
2
C BUS
CONTROL
PEDESTAL
CLAMP
PEDESTAL
CLAMP
HI: 20h/LOW: 24h
1
2
34
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
3031
32
33
34
35
36
37
3839
40
41
42
VDD
V
SS
S1 S2 S3 S4 S5 S6 S7 S8 S9
S10 S11 S12 S13 S14 S15 S16 S17 S18
GND
CK
DATA
STB
S1 S2 S3 S4 S5 S6 S7 S8 S9 S10 S11 S12 S13 S14 S15 S16 S17 S18
18 bit Latch Circuit (Rch)
(Lch) Same as Rch
Level Shift + Shift Register Circuit
TC9274N-011 (IC701)
BU2090F (IC302, 1003, 1005)
1
2
3
4
5
6
7
8
18
17
16
15
14
13
12
11Q3
VDD
OE
Q7
Q8
Q11
Q10
Q9
Q6
VSS
DATA
CLOCK
LCK
Q0
Q1
Q2
9
10
Q4
Q5
CONTROL CIRCUIT
12-bit SHIFT REGISTER
12- bi t STRAGE REGI STER
OUTPUT BUFFER ( OPEN DRAI N)
TC9273N-004 (IC705)
S2
S3
S4
S5
S6
S7
S8
S9
S10
S1
V DD
STB
DATA
S2
S3
S4
S5
S6
S7
S8
S9
S10
GND
CK
Vss
S1
13
14
1
3
4
5
6
7
8
9
10
11
12
2
15
16
28
27
26
25
24
23
22
21
20
19
18
17
1
13
28
2~12
12~27
14
15
16
Vss
GND
V
DD
S1~S10
CK
DATA
STB
GND=0V
Vss=-8.0~-17V
GND=0V
Border Input
Pin No
Symbol Name
Function
Dual Power Use:VDD = 8.0~17 V Single Power Use:VDD = 8.0~18V
+Power Terminal
Digital Ground
+Power Terminal
I/O Terminal
Clock Input
Low level
Terminal
Clock input for data transfer.
Serial input for switch setting.
Strobe InputStrobe input for data writing.Strobe Input
Data Input
Input terminal of analog switch.
TC9273N Terminal Function
w w w . x i a o y u 1 6 3 . c o m
Q Q
3
7
6 3
1 5 1 5
0 9 9
2
8 9
4 2
9 8
T E L 1 3 9 4 2 2 9 6 5 1 3 9 9 2 8 9 4 2 9 8 0 5 1 5 1 3 6 7 3
Q Q
TEL 13942296513 QQ 376315150 892498299 TEL 13942296513 QQ 376315150 892498299
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Denon AVR-2105 Specifications

General

Brand	Denon
Model	AVR-2105
Category	Receiver
Language	English