![Sony GY-2120WD Maintenance Manual Download Page 395](http://html.mh-extra.com/html/sony/gy-2120wd/gy-2120wd_maintenance-manual_410991395.webp)
6-171
GY-2120WD/WS
2x 22
(ERROR 22)
Reel position sensor defective
Description:
The L and S cassette positions of the reel table were detected simultaneously.
Detection conditions:
When the L and S position sensors detect the L and S cassette positions, respectively at the
same time
Subcode:
None (Displays 00.)
Possible cause:
.
S position sensor (PTC-71 board) trouble
.
L position sensor (PTC-71 board) trouble
.
Reel position input port (MS-54 board) trouble
Protection operation:
Ejects the cassette if possible when an error occurs during cassette insertion.
Prohibits the cassette loading.
2x 91
(ERROR 91)
Servo reference does not exist
Description:
Abnormality was detected in the servo reference signal (VD).
Detection conditions:
When the VD signal is not input to microcomputer SYS CPU (MA-83 board) in a system
control system for more than a fixed time period
Subcode:
None (Displays 00.)
Possible cause:
.
Servo IC (IC814/MA-83 board) trouble
.
Microcomputer SYS CPU (MA-83 board) operation defect in servo system
Protection operation:
Enters the protection mode when abnormality is detected by SV CPU.
Displays only this error when abnormality is detected by only SYS CPU.
6-3. Error Processing
Summary of Contents for GY-2120WD
Page 10: ......
Page 224: ......
Page 437: ...7 3 GY 2120WD WS Index Mechanical Deck Overall Block 6 7 9 8 2 1 3 4 5 ...
Page 469: ...8 1 GY 2120WD WS 8 1 Section 8 Block Diagrams Frame Wiring ...
Page 476: ......
Page 482: ......