(Ntsc (60I) & Pal (50I) Modes); Angular Velocity Sensor Sensitivity Adjustment - Sony HVR-Z1J Service Manual

Ver. 1.7 2007. 10

25. Angular Velocity Sensor Sensitivity Adjustment

(NTSC (60i) & PAL (50i) modes)
• Perform this adjustment only when replacing the angular velocity
sensor. When the microprocessor, circuit etc. is damaged, don't
perform this adjustment but check the operations only.
• Note down the sensitivity displayed on the angular 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 the steady shot
operations.
Precautions on the Parts Replacement
There are two types of repair parts.
Type A: ENC03MA
Type B: ENC03MB
Replace the broken sensor with a same type sensor. If replace with
other type parts, the image will vibrate up and down or left and
right during steady shot operations. After replacing, re-adjust
according to the adjusting method after replacement.
Precautions on Angular Velocity Sensor
The sensor incorporates a precision oscillator. Handle it with care
as if it dropped, the balance of the oscillator will be disrupted and
operations will not be performed properly.
Note: Perform these adjustments of all in NTSC (60i) mode first, and
then perform these adjustments of all in PAL (50i) mode.
25-1. Angular Velocity Sensor Sensitivity Adjustment
(NTSC (60i) mode)
Adjustment Page
Adjustment Address
Note1: The sensor sensitivity of SE401 and SE402 of the SE-150 board is
written only on the repair parts.
1) NTSC (60i)/PAL (50i) ......................................... NTSC (60i)
2) ZOOM .................................................................... TELE end
3) STEADY SHOT (CAMERA SET menu) ......................... ON
Preparation:
1) Read the PITCH sensor (SE-150 board SE401) sensitivity
written on the repair parts, and name this as S
2) Read the YAW sensor (SE-150 board SE402) sensitivity written
on the repair parts, and name this as S
HVR-Z1J/Z1U/Z1N/Z1E/Z1P/Z1C
F
86, 87
.
401
.
402
Adjusting method:
Order Page Address Data
1 0 01
2 F 84
3 F 85
4
5
6
7 F 86
8 F 87
Note2: Refer to "Table 6-4-1. Hexadecimal-decimal Conversion Table"
Note3: S and S are the data read in the "Preparation".
401 402
Processing after Completing Adjustments:
Order Page Address Data
1 0 01
2
6-56
Procedure
01 Set the data.
Read the data, and name this
data as D .
84
Read the data, and name this
data as D .
85
Convert D and D into
84 85
decimal digits, to obtain D
and D '. (Note2)
85
Calculate D ' and D ' using the
86 87
following equation (decimal
calculation). (Note3)
'/128) × (0.60/S
D '= (D
86 84
' × 0.4125/S
= D
84 401
'/128) × (0.60/S
D '= (D
87 85
' × 0.4125/S
= D
85 402
Convert D ' and D ' to
86 87
hexadecimal notation, and
obtain D and D . (Round off
86 87
to one decimal place) (Note2)
D Set the data, and press PAUSE
86
button.
D Set the data, and press PAUSE
87
button.
Procedure
00 Set the data.
Check that the steady shot
operations have been performed
normally.
'
84
) × 88
401
) × 88
402