Yamaha RX-SL80 Service Manual page 63

Av receiver/av amplifier
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A
B
C
SCHEMATIC DIAGRAM (POWER 2/3)
1
2
3
4.9
4.9
4
3.8
3.8
4.9
4.9
0
0
4.9
5
6
7
8
9
10
D
E
F
STANDBY/ON
4.9
4.9
-25.7
-25.7
-25.7
-25.6
VOLUME/SELECT
• Key Input (A-D) Pull-Up Resistance 10 k-ohms
ohm
0.0
V
~0.3
ADKEY0
ENTER
(94Pin, AN2)
G
H
I
FL DISPLAY
-25.7
-27.6
-23.8
-25.7
-21.7
-23.7
-27.6
-23.6
-23.7
FL DRIVER
-23.8
-27.6
-19.8
-23.8
-23.8
-23.7
-23.7
-19.9
4.9
-20.0
2.1
-20.0
2.2
-27.6
0
-18.1
0
-18.0
4.9
-14.1
4.6
-25.7
4.6
Page 59
B1
Page 60
to DIGITAL
to INPUT (1)
+1.0k
+1.5k
+3.3k
~1.0
~1.8
~2.4
INPUT
DSP
TUNER
* All voltages are measured with a 10M Ω /V DC electronic volt meter.
* 電圧は、内部抵抗10MΩの電圧計で測定したものです。
* Components having special characteristics are marked Z and
* Z印のある部品は、安全性確保部品を示しています。部品の交換が必要な場合、
must be replaced with parts having specifications equal to
パーツリストに記載されている部品を使用してください。
those originally installed.
* Schematic diagram is subject to change without notice.
* 本回路図は、標準回路図です。改良のため予告なく変更することがございます。
J
K
4.9
4.9
-23.6
-25.7
-23.7
-25.6
-20.3
-27.8
IR REMOTE
G1
IC101: M66003-0101FP
FL Display Driver
Serial
/CEFL
2
receive
CKFL
3
circuit
DTFL
4
XIN
7
Clock
generator
XOUT
6
/RESET
1
VDD
8
VDD
18
Vss
5
Vp
64
L
M
N
RX-SL80
Display code
CGROM
RAM
(35 bit x 166)
44
P35
(8-bit x 60)
Segment
19
P10
Code
output
write
17
P9
circuit
CGROM
dot data
9
P1
data
(35 bit x 16)
write
Code/
command
45
P36
control
circuit
52
G12
51
G13
code
Segment
50
G14
select
digit
select/
49
G15I
Display
output
timing
clock
controller
scan pulse
circuit
48
G16I
47
P38
46
P37
63
G1
Digit
output
circuit
53
G11
63

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