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15532(N)
03
Head playback output voltage check
)assette Use
Cassette
with
normal
playback
output
Recorded
cassette
(With tabs)
Rental
cassette
(Without
tabs)
Warning
Display
"L"
blinking
"L"
blinking
"L"
blinking
Envelope Detection
Output
Voltage
Envelope detec-
tion output
4V
(IC301 Pin 25 or
C3016 HOT side:
see Fig. 2-l-1)
Ov
Switching pulse
(TP183: see Fig.
2-l-2)
-----------------------------------
---
t
CH-I
CH-2
Envelope detec-
tion output
4V t-----------------------------------
(IC301 in
25 or
C3016 HOT side:
see Fig. 2-l-1)
ov~!Gthan
Switching pulse
(TP183: see Fig.
CH-I
CH-2
2-l-2)
Envelope detec-
tion output
Ov+
,$V -----------------------------------
(IC301 Pin 25 or
C3016 HOT side:
see Fig. 2-l-1)
Switching pulse
(TP183: see Fig.
CH-I
CH-2
2-l-2)
Less than
0.5V
Main Cause
When
the output voltage
dif-
ference
of the two channels
is 0.5 to 0.95V
The video heads of both are
normal
Envelope detec-
tion output
k~l=than
4V
-----------------------------------
(IC301
Pin 25 or
C3016 HOT side:
see Fig. 2-l-1)
Ov
Switching pulse
(TP183: see Fig.
CH-I
I
CH-2
2-l-2)
When
the output voltage
dif-
ference
of the two channels
is more than 0.95V
Tracking adjustment
has not
been performed accurately
One video head is clogged
One video head has worn out
When the average outputvoltage
of the two channels is less than
0.5V
Tracking adjustment has not
been performed accurately
Both video heads are clogged
Both video heads have worn
out
When
the output voltage
dif-
ference of the two channels is
more than 0.95V
Tracking adjustment has not
been performed accurately
One video head is clogged
One video head has worn out
Some rental cassettes may have extremely
low video playback outputs even when both video heads are
normal. As the average output voltage of the two heads may be less than 0.5V for some, no warning displays
will be shown.
3. Cvlinder rotation accumulatedtime disdav onlv VHR-530 emdovs this function (However,
.
.
this function W-IIbe equipped only from _themiddle of production. -
Press the STOP button on the remote control for approximately
10 seconds and the cylinder rotation accumulated
time
excluding the cassette out and standby operation time will be displayed on the "Hours" display in units of 100 hours. ("33" will
be displayed for 3 seconds for 3,300 to 3,399 hours.)
To erase the cylinder
rotation accumulated
time display,
press the RESET button on the remote control during the
accumulated time display.
(
I
A
Cylinder rotation accumulated display (Tape counter "Hours" display)
–4–
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