Samsung VP-L900, Training Manual

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Circuit Operating Description
Samsung Electronics 6-15
(2) Error Check
1. DRUM-MOTOR ERROR
1) start
! The drum after rotating it does not become D.FG input within 5 seconds.
@ The drum the case where the speed will not come in into ±25% scope of normal speed within
5 seconds.
The mecha is transient with READY mode.
2) traveling
! The case where the rotation speed 30% will not come in inside 0.5 seconds at once.
The mecha is transient with READY mode.
: When the error is detected, the key which excepts the power and tape eject key does not operate.
2. CAPSTAN-MOTOR ERROR
1) start
! The Capstan motor after rotating it does not become C.FG input within 2 seconds.
2) traveling
!
The capstan motor C.FG pulse 0.5 sec periods 100Hz at the time of below one the mecha is transient
with READY mode.
3. LOADING-MOTOR ERROR
- In loading motor After power supplying there is not change of mode switch.
4. REEL ERROR
1) start
!
The reel the rotate pulse is not input 0.7 second over after the FF/REW start.
@ The reel the rotate pulse is not input UNLOADING initial 0.4 second over.The mecha is transient
with READY mode.
2) traveling
! The reel there is not change of the pulse.
(NTSC : 2.4sec , PAL : 1.8sec)