Denon AVR-1706 Service Manual page 19

QQ
3 7 63 1515 0
TC90A69F (IC609)
28 27 26 25
DAC DAC
(8fsc)
CORING
PEAKING
INTERPOLATION
1 2 3 4
LC75721E (IC301)
48
49
DI
CL
CE
RES
V
DD
OSCI
OSCO
Vss
TEST
V
FL
G1
G2
G3
TE G4
L 13942296513
G5
G6
64
1
TA1270BF (IC606)
38
Y OFFSET
DAC2
DAC1 39
DAC1
Y INPUT 40
PEDESTAL
DAC Vcc (5V) 41 CLAMP
Y DL
C Vcc (5V) 42
UV/CbCr SW 43
fsc OUTPUT 44
fsc
1H DL
1HDL CONT 45
CONTROL
SECAM
SECAM CONT 46
CONTROL
B-Y/Cb OUTPUT 47
CbCr / UV
SW
R-Y/Cr OUTPUT 48
VCXO
1
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24 23 22 21 20 19 18
PLL DET VCO 1/2
8fsc 4fsc
1/8
CORING V-ENHANCER
Ped.
LPF DELAY
CLIP
LINE
KILLER MEMORY
CNR
DYNAMIC COMB FILTER
C-N.C
ADC
Sync. Clamp
5 6 7 8 9 10 11
LC75721E Terminal Function
Symbol
33
V
DD
Vss
32
AM 17
V
FL
AM 18
AM 19
DI
AM 20
AM 21
CL
AM 22
AM 23 CE
AM 24
AM 25
OSCI
AM 26
AM 27
OSCO
AM 28
AM 29
RES
AM 30
AM 31
AM1~AM35
AM 32
17
AA1~AA3
AA4/G16
16
AA5/G15
AA6/G14
AA7/G13
AA8/G12
G1~G11
TEST
37 36 35 34 33 32 31 30 29
DAC I 2 C BUS PEDESTAL
Ys
SW TEST CONTROL CLAMP
SUB-
Y DL
CONTRAST OFFSET
SW
SW
fsc
TRAP
YUV RGB
SYSTEM
CW
TINT
MATRIX
DEMO
P / N ID
LPF / fsc
CHROMA NOSE
TRAP BLK DET
SW
BPF H. AFC
V SEP
TOF
APC
SYNC
ACC
SEP
SUB-COLOR
2 3 4 5 6 7 8 9 10
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NJM2274R (IC614) 8
17 16 15
IIC BUS
LINE
Yin 1
MEMORY
Disc.
Cin 8
12 13 14
Function
Power terminal +5V
Power terminal GND
Power terminal FL drive
Serial data transfer terminal
DI: Data
CL: Clock
CE: Chip enable
External CR connecting terminal
Q Q
System reset terminal
3 6 7 1 3
Anode output terminal
Anode/Grid output terminal
Grid output terminal
LSI test terminal
28 27 26 25
PEDESTAL
CLAMP
24 SW GND
HI: 20h/LOW: 24h
23 ADRS SW
R-Y/R
22
OUTPUT
B-Y/B
21
SW
OUTPUT
Y/G
SW
MATRIX 20
OUTPUT
SW
19
Vcc (9V)
SYNC
18
Vcc (9V)
CP/HP
CP / HP
17
INPUT
IN
16 Dig GND
H C / D V C / D
SCP
SCP 15
OUTPUT
32fH
VCO
11 12 13 14
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19
AVR-1706/686/1506/486
2 9 9 4 2 8
1 8
2 TOP 7
VIEW
3
6
4
5
Power Save CTL Vcc
7 2
Vref
Clamp
+
Bias
7 2
C Mute CTL GND
BU2090 (IC302,607,615)
VSS 1
CONTROL CIRCUIT
DATA 2
12-bit SHIFT REGISTER
CLOCK 3
LCK
4
12-bit STRAGE REGISTER
Q0
5
O U T P U T B U FFE R (O P E N D R A IN )
Q1 6
Q2 7
8
Q3
9
Q4
1 5 0 5 8 2 9 9 4
MM74LCX244 (IC809-811)
TOP VIEW
1 20
OE
2 19
I0
3 18
O4
17
4
I1
5 16
O5
6 15
I2
7 14
O6
8 13
I3
9 12
O7
10 11
GND
m
co
9 9
+
3 Vout
750
ohm
4 Vsag
18
VDD
17 OE
16 Q11
Q10
15
Q9
14
13 Q8
12
Q7
Q6
11
Q5
10
2 8 9 9
VCC
OE2
O0
I4
O1
I5
O2
I6
O3
I7