JVC KW-XC777 Service Manual page 46

KW-XC777
QQ
3 7 63 1515 0
M61508FP-X (IC951) : E. volume
1. Pin layout & Block diagram
36 35 34
VCC
(Anarog)
R E F
1 2 3
2. Pin function
Pin No. Symbol
1 REF
2 DEFP IN1
3 DEFN IN1
4 INA1
5 INB1
6 INC1
7 IND1
TE
L 13942296513
8 DEFN OUT1
9 SEL OUT1
10 VOL IN1
11 TONE OUT1
12 FADER IN1
13 REAR OUT1
14 FRONT OUT1
15 NonFader OUT1
16 GND
17 DATA
18 VDDOUT1
19 VDDOUT2
20 CLOCK
21 VDD
22 NonFader OUT2
23 FRONT OUT2
24 REAR OUT2
25 FADER IN2
26 TONE OUT2
27 VOL IN2
28 SEL OUT2
29 DEFN OUT1
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30 IND2
31 INC2
32 INB2
33 INA2
34 DEFN IN1
35 DEFP IN1
36 VCC
1-46
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33 32 31 30 29 28 27
50K
4 5 6 7 8 9 10
Function
Grand for IC signal
Differential motion amp. Positive terminal
Differential motion amp. Negative terminal
Input terminal of input selector switch channel 1
Input terminal of input selector switch channel 1
Input terminal of input selector switch channel 1
Input terminal of input selector switch channel 1
Differential output terminal (-)
Input selector output terminal
Volume 1 input terminal
Tone output terminal
Volume 2 input terminal
Fader volume control (Rear) output terminal
Fader volume control (Front) output terminal
Non fader volume output terminal
GND terminal
Control data input terminal
Test terminal
Test terminal
Clock input terminal for serial data transport
Power supply terminal for digital
Non fader volume control output terminal
Fader volume (Front) output terminal
Fader volume (Rear) output terminal
Volume 2 input terminal
Tone output terminal
Volume 1 input terminal
Input selector output terminal
Differential output terminal (-)
Input terminal of input selector switch channel 2
Input terminal of input selector switch channel 2
x ao
y
Input terminal of input selector switch channel 2
. i
Input terminal of input selector switch channel 2
Differential motion amp negative input terminal
Differential motion amp positive input terminal
Power supply terminal
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8
26 25
LOUDNESS
+
3BAND TONE CONTROL
(BASS/MID/TREBLE)
Z E R O C RO S S
A
D E T E C T O R
B
Z e r o d e t e c t
S e l e c t S W
Z E R O C RO S S B
D E T E C T O R
A
LOUDNESS
+
3BAND TONE CONTROL
(BASS/MID/TREBLE)
11 12
Q Q
3 6 7 1 3
u163
.
2 9 9 4 2 8
24 23 22 21 20 19
VDO
(Digital)
Soft select
I / F
TIMER
DETECTOR
GND
13 14 15 16 17 18
1 5 0 5 8 2 9 9 4
m
co
9 9
2 8 9 9