Advertisement
15. Velocity Sensor Sensitivity Adjustment
• This adjustment is performed only when replacing the velocity
sensor.
Although this adjustment need not be performed when the circuit
is damaged, etc., check the operations.
• Note down the sensitivity displayed on the velocity sensor of the
repair parts. At this time, note down also to which board it was
attached to.
Be sure to check because if attached incorrectly, the screen will
vibrate up and down or left and right during hand-shake correction
operations.
Precautions on Parts Replacement
There are two types of repair parts-1-801-216-31 and 1-801-216-
41. Replace the broken sensor with a same type of sensor. If 1-801-
216-31 and 1-801-216-41 are not attached correctly, the screen will
vibrate up and down or left and right during hand-shake correction
operations. After replacing, re-adjust according to the adjusting
method after replacement.
Precautions on Velocity Sensor
The sensor incorporates a precision oscillator. Handle it with care as
if it is dropped, the the balance of the oscillator will be disrupted and
operations will not be performed properly.
Adjusting page
F
Adjusting address
41, 42
Note: The sensor sensitivity of SE500 and SE501 of the CD-159
board is written only on the repair parts.
Adjusting method:
1) Set data: 01 to page: 6, address: 00.
2) Read the sensor sensitivity written on SE500 of the CD-159 board,
and take this as S
.
500
3) Read the sensor sensitivity written on SE501 of the CD-159 board,
and take this as S
.
501
4) Calculate D
´ and D
´ using the following equation (decimal
41
42
calculation).
NTSC model
83
D
´ =
41
S
501
93
D
´ =
42
S
500
PAL model
114
D
´ =
41
S
501
106
D
´ =
42
S
500
5) Convert D
´ and D
´ into hexadecimal digits, to obtain D
41
42
D
. (Round off decimal points)
42
6) Set data: D
to page: F, address: 41, and press the PAUSE button
41
of the adjusting remote commander.
7) Set data: D
to page: F, address: 42, and press the PAUSE button
42
of the adjusting remote commander.
Processing after Completing Adjustments
1) Set data: 00 to page: 6, address: 00.
2) Check that the hand-shake correction operations have been
performed normally.
1-3.
COLOR ELECTRONIC VIEWFINDER
SYSTEM ADJUSTMENTS
Note 1: The backlight (fluorescent tube) is driven by a high voltage
AC power supply.
Therefore, be careful not to touch the backlight holder as
you will receive an electric shock.
Note 2: When replacing the LCD unit, ensure there will be no
damages by static electricity.
[Switch setting]
PANEL OPEN switch (S2100 on VC-183 board)
............................................................................. Pressed condition
[Adjusting connector]
Some measuring points for adjusting the view-finder are concentrated
at CN6202 of the VC-183 board. Connect the measuring equipments
via CPC-6 jig (J-6082-370-A) and CPC-6 terminal board jig (J-6082-
371-A). The following table lists the pin numbers and signal names
of CN6202.
Pin No.
Signal Name
GND
1
3
ENV OUT
JSWP
5
EQ IN
7
AGC IN
9
11
GND
13
TRACK ID
FLTD
15
TMS
17
EVF VG
19
[Power Supply Voltage]
Adjust the power supply so that the battery terminal voltage becomes
8.4 ± 0.1 Vdc, unless specified otherwise.
and
41
6-19
Signal Name
Pin No.
2
RF MONITOR
4
REF OUT
6
LOCK
8
VCC1
10
VCC2
12
C1ERP
14
TDOB
16
ADJ VG
18
TCK
20
TDI
Table 6-1-2.
Advertisement
