AG-TL750E, AG-TL750B - Panasonic Provideo Service Manual (repair manual). Page 13

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1-7
Table 1-3-4(a)
E-03
E-02
E-01
SP REEL
ERROR
UNLOADING
ERROR
LOADING
ERROR
Rotary encoder
    
MAIN board
IC606  4 LS1
           5 LS2  
           6 LS3
           7 LS4
Loading does not 
complete.
Unloading does 
not complete.
Supply reel does 
not rotate.
Supply reel FG
    
MAIN board
IC601 1 SUP FG
CPU checks the rotary encoder 
output to see the mechanism 
position data and identifies the 
error when loading does not 
complete in 8 seconds.
CPU checks the rotary encoder 
output to see the mechanism 
position data and identifies the 
error when unloading does not 
complete in 8 sec.
CPU identifies error when supply 
reel FG has not been detected for 
specified period of time in a mode 
in which the SP reel should rotate.
3H : Approx.   5 sec. 
L12H : Approx. 18 sec. 
L24H : Approx. 36 sec.
24H : Approx. 36 sec.
48H : Approx. 72 sec.
72H : Approx.   2 min.
120H : Approx.   3 min.
168H : Approx.   4 min.
240H : Approx.   6 min.
Power goes off 
automatically.
Power goes off 
automatically.
Power goes off 
automatically.
Loading motor failure,
MDA (IC602 on MAIN board) failure,
Power (MOTOR 12 V) defect,
Circuit protector (CP601 on MAIN board) 
disconnection,
Loading belt defect,
Mechanism part caught or stuck,
Cassette tape defect.
Capstan motor or drive circuit defect,
Belt (Capstan), clutch ass'y or idler gear 
unit defect,
Tape cut.
E-04
DRUM
ERROR
Drum motor 
does not rotate.
Drum PG/FG
    
MAIN board
TP616  DPG
CPU identifies error when drum 
FG has not been detected for 
more than 3 seconds in a mode in 
which the drum motor should 
rotate.
Power goes off 
automatically.
Drum ass'y defect,
Servo circuit defect,
Power (MOTOR 12 V) defect,
Circuit protector (CP601 on MAIN board) 
disconnection.
E-06
CAPSTAN
ERROR
Capstan motor 
does not rotate.
Capstan FG
    
MAIN board
TP617 CFGA
CPU identifies error when capstan 
FG has not been detected for 
more than 2 seconds when pinch 
roller is ON in a mode in which the 
capstan should rotate.
Power goes off 
automatically.
Capstan motor defect,
Servo circuit defect,
Power (MOTOR 12 V) defect,
Circuit protector (CP601 on MAIN board) 
disconnection.
E-07
EJECT
ERROR
Ejection does not 
occur.
Cassette sensor
    
MAIN board
IC606 $
REC SAFETY
switch
    
MAIN board
IC606 %
When ejection does not complete 
in 8 seconds.
Cassette sensor output should be 
0 V at the intake end position and 
5 V in other positions.
REC SAFETY switch should be 0 V 
during ejection and 5 V at the 
eject end position.
Cassette is 
absorbed then 
power goes off 
automatically.
Cassette housing failure,
Worm clutch ass'y defect,
Power (MOTOR 12 V) defect,
Circuit protector (CP601 on MAIN board) 
disconnection.
E-08
DEW
ERROR
Condensation of 
dew.
DEW sensor
    
MAIN board
IC601 A
Dew error caused by 
condensation is identified when 
pin 86 of IC601 is higher than 4 V.
Dew error disappears when pin 86 
of IC601 is lower than 3V.
Cassette is 
ejected, drum 
starts rotation and 
cassette will not 
be accepted until 
the condensation 
disappears.
If the error display does not disappear, the 
dew sensor may be defective.
E-13
TAPE
DEFECTIVE
Tape is cut.
Begin sensor
    
MAIN board
IC601 U BEGIN
End sensor
    
MAIN board
IC601 I END
This error is identified when both 
the tape begin and end sensors 
detect leader (the level becomes 
Low) when a cassette is inserted.
Cassette is 
ejected then 
power goes off 
automatically.
Tape cut,
Sensor defect.
E-05
TU REEL
ERROR
Take-up reel does 
not rotate.
Take-up reel FG
    
MAIN board
IC601 2 TU FG
CPU identifies error when take-up 
reel FG has not been detected for 
specified period of time in a mode 
in which the TU reel should rotate.
3H : Approx.   5 sec. 
L12H : Approx. 18 sec. 
L24H : Approx. 36 sec.
24H : Approx. 36 sec.
48H : Approx. 72 sec.
72H : Approx.   2 min.
120H : Approx.   3 min.
168H : Approx.   4 min.
240H : Approx.   6 min.
Power goes off 
automatically.
Capstan motor or drive circuit defect,
Belt (Capstan), clutch ass'y or idler gear 
unit defect,
Tape cut.
Display
Description
Sensors
Detection Method
Possible Causes
Error
Code
Operation after
Detection
Page of 90
Display

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