DCR-TRV738E, DCR-TRV740, DCR-TRV740E, DCR-TRV840 (serv.man2) - Sony Movie Service Manual (repair manual). Page 126

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The adjustment remote commander is used for changing the
calculation coefficient in signal processing, EVR data, etc. The
adjustment remote commander performs bi-directional
communication with the unit using the remote commander signal
line (LANC). The resultant data of this bi-directional communication
is written in the non-volatile memory.

1)

Connect the adjustment remote commander to the LANC
terminal.

2)

Set the HOLD switch of the adjustment remote commander to
“HOLD” (SERVICE position). If it has been properly
connected, the LCD on the adjustment remote commander will
display as shown in Fig. 5-4-1.

Fig. 5-4-1.

3)

Operate the adjustment remote commander as follows.
• Changing the page

The page increases when the EDIT SEARCH+ button is
pressed, and decreases when the EDIT SEARCH– button is
pressed. There are altogether 20 pages, from 0 to F, 1B, 1C,
1E, 1F (Note1).

• Changing the address

The address increases when the FF (M) button is pressed,
and decreases when the REW (m) button is pressed. There
are altogether 256 addresses, from 00 to FF.

• Changing the data (Data setting)

The data increases when the PLAY (N) button is pressed,
and decreases when the STOP (x) button is pressed. There
are altogether 256 data, from 00 to FF.

• Writing the adjustment data

The PAUSE button must be pressed to write the adjustment
data (8, A, B, C, D, E, F, 1B, 1C, 1E, 1F page) in the
nonvolatile memory. (The new adjusting data will not be
recorded in the nonvolatile memory if this step is not
performed.)(Note2)

4)

After completing all adjustments, turn off the main power
supply (8.4 V) once.

When reading or writing the 1B, 1C, 1E, 1F page data, select page:
0, address: 10, and set data: 01, then select B, C, E or F page. The
1B, 1C, 1E or 1F page can be chosen by this data setting.
After reading or writing, reset the data of page: 0, address: 10 to
“00”.

0 1 2 3 4 5 6 7 8 9 A B C D E F

0 1 2 3 4 5 6 7 8 9 A b c d E F

0 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15

Mishandling of the adjustment remote commander may erase the
correct adjustment data at times. To prevent this, it is recommended
that all adjustment data be noted down before beginning adjustments
and new adjustment data after each adjustment.