(Using The Minipattern Box) - Sony DCR-TRV820 Service Manual

2. Flange Back Adjustment

(Using the minipattern box)

The inner focus lens flange back adjustment is carried out auto-
matically. In whichever case, the focus will be deviated during
auto focusing/manual focusing.
Siemens star chart with ND filter for
Subject
the minipattern box (Note 1)
Measurement Point
Check operation on TV monitor
Measuring Instrument
Adjustment Page F
Adjustment Address 4E to 5D, 61
Note 1: Dark Siemens star chart.
Note 2: Perform this adjustment after performing "HALL
adjustment".
Switch setting:
1) NIGHT SHOT .................................................................. OFF
2) DIGITAL ZOOM (Menu display) ................................... OFF
3) STEADY SHOT (Menu display) .................................... OFF
Preparation for adjustment
The minipattern box is installed as shown in the following figure.
Note: The attachment lenses are not used.
Specified voltage: The specified voltage varies according to the
minipattern box, so adjust the power supply
output voltage to the specified voltage written
on the sheet which is supplied with the
minipattern box.
Minipattern box
Regulated power supply
Output voltage : Specified voltage ±0.01 Vdc
Output current : more than 3.5 A
Red (+)
Black (–)
Yellow (SENS +)
White (SENS –)
Need not connected
Black (GND)
Fig. 5-1-6
Below 3 cm
Camcorder
Camera
table
5-16
Adjusting method:
1) Install the minipattern box so that the distance between it and
the front of the lens of the camcorder is less than 3 cm.
2) Make the height of the minipattern box and the camcorder
equal.
3) Check that the output voltage of the regulated power supply is
the specified voltage ± 0.01 Vdc.
4) Check that at both the zoom lens TELE end and WIDE end,
the center of the Siemens star chart and center of the exposure
screen coincide.
5) Select page: 0, address: 01, and set data: 01.
6) Select page: 6, address: 82, and set data: 01.
7) Check that the data of page: F, address: 4E to 5D and 61 is the
initial value (See table below).
Address Data
4E 2E
4F 12
50 48
51 F1
52 18
53 5D
54 66
55 00
56 19
8) Select page: 6, address: 02, and check that the data is "00".
9) Select page: 6, address: 01, set data: 13, and press the PAUSE
button of the adjustment remote commander.
10) Select page: 6, address: 01, set data: 27, and press the PAUSE
button.
(The adjustment data will be automatically input to page: F,
addresses: 4E to 5D and 61)
11) Select page: 6, address: 02, and check that the data is "01".
Processing after Completing Adjustments
1) Turn OFF the main power supply (8.4 V).
2) Perform "Flange Back Check".
Address Data
57 00
58 19
59 00
5A 00
5B 04
5C 00
5D 00
61 00