Service Mode; Setting The Test Mode; Emergence Memory Address; C Page Emergence Memory Address - Sony DCR-TRV820 Service Manual

4-3.

SERVICE MODE

Additional note on adjustment
Note: After the completion of the all adjustments, cancel the ser-
vice mode by either of the following ways.
1) After data on page: D and F is restored, unplug the
main power supply and remove the coin lithium bat-
tery. (In this case, date and time and menu setting have
been set by users are canceled. Perform resetting)
2) After data on page: D and F is restored, select page: 0,
address: 01, and return the data to 00. And when data
on page: 2 and 3 are changed, return data to the origi-
nal condition.

1. Setting the Test Mode

Page F Address 22
Data
80 Normal
81 Test mode
Various emergency prohibitions and releases
Drum emergency, capstan emergency, loading motor
emergency, reel emergency, tape top and end, DEW
detection
Page D Address 10
Data
00 Normal
01 Forced camera power ON
02 Forced VTR power ON
03 Forced camera + VTR power ON
05 Forced memory power ON
• Before setting the data , select page: 0, address: 01, and set data:
01.
• For page D and F, the data set will be recorded in the non-vola-
tile 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 (8.4
Vdc).
• After completing adjustments/repairs, be sure to return the data
of this address to 00, and press the PAUSE button of the adjust-
ment remote commander. And select page: 0, address: 01, and
set data: 00.
Function
Function

2. Emergence Memory Address

2-1. C Page Emergence Memory Address

Page C
Address
F4 EMG code when first error occurs
Upper: MSW code when shift starts when first error
F6 occurs
Lower: MSW code when first error occurs
Lower: MSW code to be moved when first error
F7
occurs
F8 EMG code when second error occurs
Upper: MSW code when shift starts when second
FA error occurs
Lower: MSW code when second error occurs
Lower: MSW code to be moved when second error
FB
occurs
FC EMG code when last error occurs
Upper: MSW code when shift starts when last error
FE occurs
Lower: MSW code when last error occurs
Lower: MSW code to be moved when last error
FF
occurs
When no error occurs in this unit, data "00" is written in the above
addresses (F4 to FF). when first error occurs in the unit, the data
corresponding to the error is written in the first emergency ad-
dress (F4 to F7). In the same way, when the second error occurs,
the data corresponding to the error is written in the second emer-
gency address (F8 to FB).
Finally, when the last error occurs, the data corresponding to the
error is written in the last emergency address (FC to FF).
Note: After completing adjustments, be sure to initialize the data
of addresses F4 to FF to "00".
Initializing method:
1) Select page: 0, address: 01, and set data: 01.
2) Select page: C, address: F4, set data: 00, and press the PAUSE
button.
3) Select address: F5 to FF and set data "00" into them in the
same way as address: F4.
4) Select page: 0, address: 01, and set data: 00.
5-59
Address F4 to FF
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