Service Mode; Setting The Test Mode; Emergence Memory Address; Emg Code (Emergency Code) - Sony GV-D300 Service Manual

4-3.

SERVICE MODE

1. Setting the Test Mode

Page D Address 10
Data
00 Normal
02 Forced VTR power ON
• Before setting the data , select page: 0, address: 01, and set data:
01.
• For page D, the data set is recorded in the non-volatile memory
by pressing the PAUSE button of the adjustment remote
commander. In this case, take note that the test mode will not be
exited even when the main power is turned off (8.4Vdc).
• After completing adjustments/repairs, be sure to return the data
of this address to 00, and press the PAUSE button of the adjustment
remote commander.
Select page: 0, address: 01, and set data: 00.

2. Emergence Memory Address

Page C Address 30 to 3B
Address
30 EMG code when first error occurs
Upper: MSW code when shift starts when first
32 error occurs
Lower: MSW code when first error occurs
Lower: MSW code to be moved when first error
33
occurs
34 EMG code when second error occurs
Upper: MSW code when shift starts when second
36 error occurs
Lower: MSW code when second error occurs
Lower: MSW code to be moved when second error
37
occurs
38 EMG code when last error occurs
Upper: MSW code when shift starts when last error
3A occurs
Lower: MSW code when last error occurs
Lower: MSW code to be moved when last error
3B
occurs
When no error occurs in this unit, data "00" is written in the above
addresses (30 to 3B). when first error occurs in the unit, the data
corresponding to the error is written in the first emergency address
(30 to 33). In the same way, when the second error occurs, the data
corresponding to the error is written in the second emergency address
(34 to 37). Finally, when the last error occurs, the data corresponding
to the error is written in the last emergency address (38 to 3B).
Note: After completing adjustments, be sure to initialize the data of
addresses 30 to 3B to "00".
Initializing method:
1) Select page: 0, address: 01, and set data: 01.
2) Select page: 3, address: 01, set data: FD, and press the PAUSE
button.
3) Select page: 0, address: 01, and set data: 00.
Function
Contents

2-1. EMG Code (Emergency Code)

Codes corresponding to the errors which occur are written in
addresses 30, 34 and 38. The type of error indicated by the code are
shown in the following table.
Code
00 No error
10 Loading motor emergency during loading
11 Loading motor emergency during unloading
22 T reel emergency during normal rotation
23 S reel emergency during normal rotation
T reel emergency (Short circuit between S reel
24
terminal and T reel terminal)
30 FG emergency at the start up of the capstan
40 FG emergency at the start up of the drum
42 FG emergency during normal rotation of the drum
5-41
Emergency Type