Backlight Consumption Current Adjustment (Vf-141 Board); White Balance Adjustment (Vf-141 Board) - Sony DCR-TRV820 Service Manual

6. Backlight Consumption Current Adjustment
(VF-141 board)
Set the backlight luminance and color temperature.
If deviated, the image may become dark or bright.
Mode Camera
Subject Arbitrary
+Probe: Pin 0 of CN259 (EVF BL
4.6V) on FU-141 board
Measurement Point
-Probe: Pin 9 of CN259 (EVF BL)
on FU-141 board
Measuring Instrument Digital voltmeter
Adjustment Page D
Adjustment Address 9C, 9D, 9E
BRIGHT mode: A=15.0 ± 1 mV
Specified Value
NORMAL mode: A=10.0 ± 1 mV
Adjusting method:
1) Select page: 0, address: 01, and set data: 01.
2) Select page: D, address: 9D, change the data, and set the votage
difference (A) between Pin 0 of CN259 (EVF BL 4.6V) and
Pin 9 of CN259 (EVF BL) to thes pecified value of BRIGHT
mode.
(The data of address: 9D, should be "00" to "3F")
3) Press the PAUSE button of adjustment remote commander.
4) Read the adjustment data of step 2), and this data is named
D .
9D
5) Convert D to decimal notation, and obtain D
9D
(Refer to Table 5-4-1. "Hexdecimal-decimal conversion table"
of"5-4. Service Mode")
6) Calculate D ' using following equations (decimal calculation),
9C
convert it to a hexdecimal number, and obtain D
D '=D '+192
9C 9D
7) Select page: D, address: 9C, set data D
PAUSE button of adjustment remote commander.
8) Select page: D, address: 9E, change the data, and set the votage
difference (A) between Pin 0 of CN259 (EVF BL 4.6V) and
Pin 9 of CN259 (EVF BL) to the specified value of NOR-
MAL mode.
(The data of address: 9D, should be "00" to "1F")
9) Press the PAUSE button of adjustment remote commander.
10) Select page: 0, address: 01, and set data: 00.

7. White Balance Adjustment (VF-141 board)

Correct the white balance.
If deviated, the EVF screen color cannot be reproduced.
Mode
Subject
Measurement Point
Measuring Instrument
Adjustment Page
Adjustment Address
Specified Value
Adjusting method:
1) Select page: 0, address: 01, and set data: 01.
2) Select page: D, address: 97 and 98, and set the data to the
3) Check that the EVF screen is not colored. If colored, change
'.
9D
. 4) Select page: 0, address: 01, and set data: 00.
9C
, and then press the
9C
5-28
Camera
Arbitrary
Check on EVF display
D
97, 98
The EVF screen should not be
colored.
initial value.
Note: To write in the non-volatile memory (EEPROM), press
the PAUSE button of the adjustment remote commander
each time to set the data.
Address Data
97 80
98 80
the data of page: D, address: 97 and 98 so that the EVF screen
is not colored.
Note: To write in the non-volatile memory (EEPROM), press
the PAUSE button of the adjustment remote commander
each time to set the data.