Hitachi VIV-E553LE - Page 108

Display | Results of diagnosis Parts/circuits deemed to be defective
(Detect display conditions)
Trouble
sensor
Tape
detection
switches,
etc.
Capstan
motor
Cylinder
Mechanism
mode
switch
E7-5
RST
Table 1-3 Results of B Mode Self-Diagnosis (2/2)
The pulse from the take-up reel sensor is
defective.
seconds.)
Take-up reel disk
Trouble sensor (reel sensor)
Capstan motor
ICo901
ESS
| (There is one pulse or less within two
The pulse from the supply end sensor is
defective. (No pulse is input for more than
100 ms continuously within two seconds.)
Trouble sensors (end sensor/end LED)
Q0905
ICO901
DC-DC converter circuit (B+ line)
The pulse from the take-up end sensor is
defective. (No pulse is input for more than
100 ms continuously within two seconds.)
The erase prevention tab detection switch
_| detects the record inhibit state (OFF).
ME
The ME/MP tape detection switch detects
the MP state (OFF).
MP
The Hi-8 MP tape detection switch detects
the normal MP state (OFF).
Ss
The cassette holder switch detects the state
where the cassette holder is not lowered
(OFF).
The CAPST. FG pulse is defective.
(150 pulses or less within two seconds.)
The SW30/25 (CYL. FG) pulse ts defective.
(No pulse is input normally within two
seconds.)
The unloading stop position detection signal
is defective.
REW
The rewind position detection signal is
t LST
The loading stop position detection signal is
defective.
signal is defective.
Between the fast forward position and unloading
stop position detection signal isdefective.
The eject position detection signal is
defective.
| Trouble sensors (end sensor/end LED)
defective. |
The play or fast forward position detection |
Q0905
ICo901
DC-DC converter circuit (B+ line)
Caution: These switches flash when they are
not pressed.
It is abnormal if they flash when
pressed.
Trouble sensor
IC0901
Capstan motor
ICO651
ICO901
DC-DC converter circuit
Cylinder
IC0631
IC0901
DC-DC converter circuit
Caution: The positions shown on the left are
detected in the order described
within 10 seconds.
Mechanism mode switch
Trouble sensor
IC0901
Defective rotation/phase of drive gears in
mechanical block.
Loading motor.
Tape transport components.
Guide roller rails
DC-DC converter circuit.