2.4 SELF-DIAGNOSIS RESULT DISPLAY
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The "SELF-DIAGNOSIS RESULT DISPLAY & MEMORY function is built in this VTR.
It means that when the VCR detects undesirable condition, it can be displayed a “Error code (Two
numbers from the left)” with Service Mode 2.
Since the "Error code" is stored in the EEPROM, it can be displayed although after disconnected the
AC leads. It can be displayed with Service Mode 2.
(If a second error had been detected, only the most recent error can be displayed. )
For more details, refer to the Service Manual for Z-Mechanism Chassis Order number
VRD9612M129.
NOTE:
To erase the memorized “ERROR” code, press the FF and EJECT keys simultaneously for more than
5 seconds.
INDICATION
CAUSE
REMEDY/CHECK
01
After cylinder lock is detected, the cylinder does not start rotating
again even after tape unloading.
Check the cylinder motor drive circuit.
02
Cassette tape is not wound up during the tape unloading except
EJECT mode.
Check the capstan motor drive circuit.
03
Mechanism locks during mode transition except EJECT mode.
1.
Check the loading motor drive circuit.
2.
Check the mechanism phase alignment.
3.
Check the mode switch.
04
Mechanism locks during tape unloading.
1.
Check the loading motor drive circuit.
2.
Check the mechanism phase alignment.
06
Mechanism locks after tape unloading in EJECT mode.
1.
Check the loading motor drive circuit.
2.
Check the mechanism phase alignment for cassette holder unit.
07
During recording mode, recording signal is less than the normal
condition.
Protection of the over-current flowing in transistor which produces the
power supply for recording mode.
08
Recording circuit works except recording mode.
Check the recording circuit.
16
Cylinder lock detection.
Check the cylinder unit and the cylinder motor drive circuit.
17
Supply reel mechanism lock detection
Check the supply reel mechanism and the supply reel circuit.
18
Take-up reel mechanism lock detection
Check the Take-up reel mechanism and the Take-up reel circuit.
2*
PG shifter automatic adjustment error.
Check the servo/system control circuit and the cylinder unit.
Fig. T1 Self-Test indication Display
6. 10. 2004
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Summary of Contents for NV-HS870B
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