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K
J
I
H
G
F
E
D
c
B
A
SERVO CIRCUIT
WAVEFORMS
(IC351 :XLU2896
Series)
(VHR-650)
TEST LOCATION
WAVEFORM & MODE/LEVEL
TEST LOCATION
WAVEFORM
& MODE/LEVEL
Pin 40
SLOW
PB
1
Pin 15
(H.ASWITCHING)
h—————l
(CTL PULSE)
'~ov
20msec
20msec
~—
24msec
16msec
Pin 42
m+
Pin15
(PWM)
(CTL PULSE)
1 '51rJr-l?+v
8.66 KHZ
Pin 41,44,
1
JIJl+v
Pin 21
(PWM)
(CTL HEAD-)
'E:
t–~~
69.27 KHz
24msec 16msec
Pin 3
I/'uut'
Pin 22
o.3vp-p
(FSC INPUT)
(CTL HEAD+)
'Ey—gl:
4.43 MHZ T
24msec 6msec
Pin 5
'B~ov
Pin 26
(ROTARY)
(CTL AMP OUT)
'By+Tww
20msec 20msec
40msec
2msec
Pin 8
1~
/@v
Pin 28
'yyw!J'o"lvp-p
(D-PG MM)
T
(C-FG INPUT)
7msec
0.66msec
Pin 9
&
5.OV
Pin 29
IJIJjwl'omvp-p
(RF SW PULSE)
20msec 20msec
(D-FG INPUT)
1.33msec
Pin 10
'Bfl'
5.OV
Pin 30
(AF SW PULSE)
~--r
(D-PG INPUT)
&+150mvp-p
20msec 20msec
40msec
Pin 11
111114
Pin 38
(COMPOSITE
4.2V
(ENV.SW INPUT)
'Lwov
SYNC INPUT)
T=20msec
20msec 20msec
Pin 14
m+"
(C-FG PULSE)
W
WIX3-TP4
1
I
2
1
3
I
4
I
5
I
6
1
7
I
8
–37–
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