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Aiwa HV-FX5000 Service Manual page 54

Stereo video cassette recorder

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IC DESCRIPTIONS
Input for Slow Tracking Offset.
OEC0062A
FS CS
AVSS
BOT-H
R SLW OFFS
CAS/SRVCE
Input of CASS DOWN, TAB switch and setting of service mode.
PG MM
Input voltage from Variable Resistor of PG SHIFTER.
MOTOR SEL
Ground
KEY-B
Key B input.
KEY-A
Key A input.
Input for the Recognition of Hi-Fi Track and the Selection of Hi-Fi Tracking.
AFT S Curve input for tuner.
HI ENV.
~+ oO
= _—
AFT SC
EOT-H
Tape end sensor input signal.
_
ne)
3
SLOW OFFS
Input of tracking offset amount at SLOW.
BSS
Input terminal of video RF envelope.
ON/OFF control to Micon AD section.
RESET will be done when the voltage goes to HIGH after the reset signal.
ON/OFF control for RF Modulator.
V. ENV.
AVDD
a
o
RESET
VCR-H
SP-L
LP-L
Output the HIGH at tape speed.
EP-L
Output the "H" when the blueback is appeared such as MENU etc. and also
at the E-E except REC.
OSD-H
Nw
DVDD
23
_
Hi-Fi. SW
24
H. SW
N
5
CAP PWM
DRM PWM
Nn fo)
PWM output of Cylinder control
Virtual V Sync output
Color Rotary Conirol output on 4 heads.
Switching output of Head Amp SW on 4 heads.
Comparison Results input of Playack Envelope level on SP/LP
heads(4 heads).
Input terminal of Control Head.
Output terminal of Control! Head.
V-SYNC
Le) ~~
Nh [=o]
C.ROTARY
Nh [oe]
H. AMP SW
COMP
w oO
ive)
_—
| ss
| as
fF
se
Ff
oe
i mt
© py}
— o}rorn
N
wo ~
CTL-H(+)
CTL-H(-)
aw DS)
54

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