Error Detection; Error Detecting Conditions; Processing After Error Detection - Canon ZR70 MC A Service Manual

5-5 Error Detection

If an abnormality has been occurred in any rotation drive system (drum, capstan, reel, loading), a relevant mode enters. The LCD
indicates "PLEASE UNLOAD THE CASSETTE" and blinks "EJECT".

5-5-1 Error Detecting Conditions

The following table gives error detecting conditions.
Kind
Drum error
Error detecting mode
FG frequency when steady
Error detecting level
Error detecting time
Capstan error Error detecting mode
FG frequency when steady
Error detecting level
Error detecting time
Reel error
Error detecting mode
Error detection
Loading error
Error detecting mode
Error detection

5-5-2 Processing after Error Detection

The following table gives processing after error detection.
• Pop up : Error display
• Error stop : Error display
Cassette in
Drum error
Pop up
Capstan error
Pop up
Reel error
Loading error Pop up
Condition
Starting / steady
900Hz
Starting: Beyond 80-150%.
Steady : 30% max.
Starting : 5sec.
Steady : 0.5sec.
Starting / steady
1347Hz
Starting : 80% max.
Steady : 60Hz max.
Starting : 2sec.
Steady : 2sec.
Starting / Normal / UNLOAD
Normally : The C-FG count per reel FG cycle is
Starting : M ore than 3294
Steady : M ore than 2256
UNLOAD : Reel FG half cycle is 1 sec or more
M ode transfer
M ode transfer time
→ →
error eject pop up
→
STOP position (not cleared unless EJECTED)
Loading
Pop up
-------
------- -------
Pop up
CHAPTER 2. TECHNICAL DESCRIPTION
(Take-up reel only for both)
STANDBY-STOP : 6sec
STANDBY-POPUP : 3sec
STOP-PLAY : 3sec
→
error clear
During Loading
loading completed
Error stop Error stop
Error stop Error stop
Error stop Error stop
Error stop Error stop
2-19
ZR70 MC A, ZR65 MC A, ZR60 A
Detection
D-FG
C-FG
T, S-REEL FG
C-FG
M ode SW
During tape
During mode
running
Error stop Error stop
Error stop Error stop
Error stop Error stop
------- Error stop