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Sanyo VHR-690 Service Manual page 3

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1
No.
Problem
Main Possible
Cause
Mechanism
Operations
and
State After Occurrence
Front unloading cannot be performed
The cassette
drive mechanism
is
Front loads and shifts to the STOP or
when ejecting the cassette,
faulty.
INITIAL mode.
(Front loading can be performed.)
The front door is caught,
When the power switch is turned on
before eject operations: Shifts to the
06
STOP mode.
When the power switch is turned off
before eject operations: Shifts to the
INITIAL mode and the power goes
off.
Front loading and front unloading can-
The tape cassette is caught in the
The power is forcibly turned off with
not be performed
when ejecting the
cassette drive mechanism.
the mechanism at its current position.
cassette.
" The main cam and front rack gear of
07
the front loading mechanism
have
not engaged properly.
The gears of the front loading drive
mechanism have not engaged prop-
erly.
The mechanism
becomes
1 (RE-
" The mechanism
mode switch con-
The power is forcibly turned off with
08
VIEW) while moving from 2 (IDLER),
tact is faulty.
the mechanism at its current position.
3 (STILL),
4 (BRAKE),
and to 5
(STOP)
The mechanism becomes 7 (INITIAL)
s The mechanism
mode switch con-
Carries out tape take-up operations,
09
while moving
from 1 (REVIEW),
2
tact is faulty.
shifts to the INITIAL mode, and the
(IDLER), 3 (STILL), 4 (BRAKE), and
power goes off.
to 5 (STOP).
Note:
For details of mechanism operations corresponding to the mechanism positions of the self-diagnosis numbers 08 and 09 above,
refer to the separate volume on the V95 1 mechanism manual, These manual reference numbers are shown in the cover.
Mechanism
Mode
Display
Contents
00
01
02
03
04
05
06
07
Mechanism
Mode
Mode No.
CASSETTE
OUT
STANDBY
STOP
STILL
REC-PAUSE
AUDIO DUBBING-PAUSE
FRAME ADVANCE
SLOW
08
09
10
11
12
13
14
15
1
Mechanism
Mode
I Mode Nc
PLAY
REC
AUDIO DUBBING
X2 SPEED PIAY
CUE
REVIEW
FAST FORWARD
REWIND
16
17
18
19
99
Mechanism
Mode
VIDEO INSERT
VIDEO INSERT-PAUSE
AUDIO/VIDEO
INSERT
REVERSE X2 SPEED PLAY
OTHERS
I
2. Head Output Drop Warning Display
.
When the STOP button on the remote control is pressed for 10 seconds continuously
10 seconds after play starts, "L" will be
displayed blinking at the first digit of the minutes position on the tape counter when the head output is lower than the specified
value to indicate an abnormality.
The cause of the abnormality
maybe due to drop in the playback output caused by drop in the efficiency of the cassette used or
head clogging. Refer to "Head Playback Output Voltage Check" as a means to judge the abnormality.
Display panel
171-
:"""""" :""'"'"$ I
? '~ 177
'
IJ
2
'1
,,, ', _ "
"LIE
I
4
I
<
6
,
Head output drop warning display
(Tape counter"1 st digit of Minutes." position)
–3–

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