Model - Denon DRA-395 Service Manual

QQ
3 7 63 1515 0
LC72131M (IC401)
XIN 1
CE 2
DI 3
CL 4
DO
5
BO1
6
BO2
7
BO3
8
BO4
9
IO1
10
TE
L 13942296513
TC9273N-007 (IC300)
Vss
1
2 S1 S1
S2 S2
3
4 S3
S3
S4 S4
5
6 S5
S5
7 S6 S6
8 S7 S7
9 S8
S8
10 S9
S9
11
S10 S10
12
13
GND
14
CK
LA7952 (IC500)
(U.S.A./Canada model)
6dB
amp
www
driver
control
.
1 2 3 4 5
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LA1266 (IC402)
1
20 XOUT
2
3
19 Vss
4
5
18 AOUT
6
7
17 AIN
8
9
PD
16
10
11
V
15
DD
12
14 FMIN
LA3401 (IC403)
AMIN
13
IO2
12
11 IFIN
TC9273N Terminal Function
V
DD 28
27
Pin No Symbol
26
+Power Terminal
1 Vss
25
13 GND Digital Ground
24
28 V
+Power Terminal
DD
23
2~12
22
I/O Terminal
S1~S10
12~27
21
20
14 CK Clock Input
19
Data Input
15 DATA
18
STB
16 Strobe Input
17
16
STB
15
DATA
NJM2068DD (IC301,602)
video switch
x ao
(4 inout 1 output)
y
i
7 8 9
6
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8
24 20 18
23
22
BUFFER
21
20
19
AM-IN
21 RF
18
17
16
REG
15
14
13
22
22 21 20 19 18
VOL PHASE
OSC
REG COMPARATOR
VCO STOP
SYMMETRICAL
REOCTANCE
CIRCUIT
FF
FF
FF FF
38kHz
38kHz 90°
DECODER
Ro
Rc Rb
MUTING
Q Q
FM AM CHANGE
3 6 7 1 3
Rc
1 2 3 4 5 6
Name
Dual Power Use:VDD = 8.0~17 V
GND=0V
Vss=-8.0~-17V
Input terminal of analog switch.
Clock input for data transfer.
Serial input for switch setting.
Strobe InputStrobe input for data writing.
V
A OUTPUT 1 8
A –INPUT B OUTPUT
2 7
A+INPUT 3 B –INPUT
6
u163
B +INPUT
V
4 5
.
2 9 9 4 2 8
AM-IF FM-IF FM-IN
11
13 10 1 2 3 5 6
IF
IF
FM - IF Q.D.
BUFFER
MIX AM-IF DET
OSC NARROW
OSC AGC
BUFFER S-METER
GND
24
23 4 14 19
17 16 15 14 13 12
PILOT DET
LAMP
DRIVER
TRIGGER
STEREO
SWITCH
FF
19kHz 90°
MUTING CONTROL MUTING
FM AM CHANGE OVER OUTPUT
Rb
Vcc ON
1 5 0 5 8 2 9 9 4
MUTING
8 9
7 10 11
Function
Single Power Use:VDD = 8.0~18V
GND=0V
m
co
DRA-295
9 9
7
Vcc
POST
12
AMP
9
15
LED
S-METER
8
DRIVER
17 16
2 8 9 9
Low level
Border Input
Terminal
43