Sony DSC-P32 (serv.man4) Service Manual ▷ View online
6-35
DSC-P32
6. V COM Level Adjustment (SY-84 board)
Set the V COM signal level to an appropriate level.
Note:
Do either of “Adjustment without Using Oscilloscope” or
“Adjustment Using Oscilloscope”.
“Adjustment Using Oscilloscope”.
6-1. Adjustment without Using Oscilloscope
Mode
PLAY (
)
Signal
Arbitrary
Measurement Point
Data of page: 40, address: 11, 12
Measuring Instrument
Adjustment Page
4F
Adjustment Address
87
Specified Value
1A0 to 1A8
Adjusting method:
Order Page Address Data
Procedure
1
00
01
01
Set the data.
2
40
F1
02
Write the data.
3
4F
02
03
Write the data.
4
40
10
00
Write the data.
5
40
10
80
Write the data.
6
40
11
Read the data, and this data is
named D
named D
11A
.
7
40
12
Read the data, and this data is
named D
named D
12A
.
8
40
10
81
Write the data.
9
40
11
Read the data, and this data is
named D
named D
11B
.
10
40
12
Read the data, and this data is
named D
named D
12B
.
11
Calculate D
A
and D
B
using
following equation.
(Hexadecimal calculation.)
(Note1)
(Hexadecimal calculation.)
(Note1)
D
A
= (D
11A
×
4+ D
12A
/ 40)
D
B
= (D
11B
×
4+ D
12B
/ 40)
12
Calculate the signal level using
following equation.
(Hexadecimal calculation.)
When D
following equation.
(Hexadecimal calculation.)
When D
A
D
B
Signal level = D
A
- D
B
When D
A
< D
B
Signal level = D
B
- D
A
13
When the signal level satisfies the
specified value proceed to step 16,
in case of others proceed to step
14.
specified value proceed to step 16,
in case of others proceed to step
14.
14
4F
87
Change the data. (Note2)
15
4F
87
Write the data, and return to step
4.
4.
16
4F
02
00
Write the data.
17
40
F1
00
Write the data.
18
00
01
00
Set the data.
Note1:
When dividing D
12A
or D
12B
by 40. If there is a fraction below
decimal point, truncate it.
Note2:
When the signal level is smaller than specified value, increase the
data.
data.
6-2. Adjustment Using Oscilloscope
Mode
PLAY (
)
Signal
Arbitrary
Measurement Point
CL803 (Pin wj of IC801) (VCOM)
Measuring Instrument
Oscilloscope
Adjustment Page
4F
Adjustment Address
87
Specified Value
A = 5.65 ± 0.05V
Adjusting method:
Order Page Address Data
Procedure
1
00
01
01
Set the data.
2
40
F1
02
Write the data.
3
4F
02
03
Write the data.
4
4F
87
Change the data and set the
signal level (A) to the specified
value.
signal level (A) to the specified
value.
5
4F
87
Write the data.
6
4F
02
00
Write the data.
7
40
F1
00
Write the data.
8
00
01
00
Set the data.
Fig. 6-1-18.
A
2H
6-36
DSC-P32
7. V COM Adjustment (SY-84 board)
Set the DC bias of the common electrode drive signal of LCD to the
specified value.
If deviated, the LCD display will move, producing flicker and
conspicuous vertical lines.
specified value.
If deviated, the LCD display will move, producing flicker and
conspicuous vertical lines.
Mode
PLAY (
)
Signal
Arbitrary
Measurement Point
Check on LCD display
Measuring Instrument
Adjustment Page
4F
Adjustment Address
84
Specified Value
The brightness difference between the
section A and section B is minimum.
section A and section B is minimum.
Note:
Perform “Bright Adjustment” and “Contrast Adjustment” before this
adjustment.
adjustment.
Adjusting method:
Order Page Address Data
Procedure
1
00
01
01
Set the data.
2
40
F1
82
Write the data.
3
4F
02
03
Write the data.
4
4F
84
Change the data so that the
brightness of the section A and
that of the section B is equal.
brightness of the section A and
that of the section B is equal.
5
4F
84
Write the data.
6
4F
02
00
Write the data.
7
40
F1
00
Write the data.
8
00
01
00
Set the data.
8. White Balance Adjustment (SY-84 board)
Correct the white balance.
If deviated, the LCD screen color cannot be reproduced.
If deviated, the LCD screen color cannot be reproduced.
Mode
PLAY (
)
Subject
Arbitrary
Measurement Point
Check on LCD display
Measuring Instrument
Adjustment Page
4F
Adjustment Address
88, 89
Specified Value
The LCD screen should not be colored.
Note1:
Use the AC power adaptor during this adjustment.
Note2:
Check the white balance only when replacing the following parts.
If necessary, adjust them.
If necessary, adjust them.
1. LCD panel
2. Light induction plate
3. IC801
2. Light induction plate
3. IC801
Adjusting method:
Order Page Address Data
Procedure
1
00
01
01
Set the data.
2
40
F1
0A
Write the data.
3
4F
02
03
Write the data.
4
4F
88
8D
Write the data.
5
4F
89
59
Write the data.
6
4F
88
Check that the LCD screen is
not colored. If not colored,
proceed to step 12.
not colored. If not colored,
proceed to step 12.
7
4F
88
Change the data so that the LCD
screen is not colored.
screen is not colored.
8
4F
88
Write the data.
9
4F
89
Change the data so that the LCD
screen is not colored.
screen is not colored.
10
4F
89
Write the data.
11
4F
89
If the LCD screen is colored,
repeat steps 7 to 11.
repeat steps 7 to 11.
12
4F
02
00
Write the data.
13
40
F1
00
Write the data.
14
00
01
00
Set the data.
Fig. 6-1-19.
A
A
A
A
B
B
B
B
6-37
DSC-P32
1-6.
SYSTEM CONTROL SYSTEM ADJUSTMENT
1. Battery End Adjustment (SY-84 board)
Check the battery end voltage.
Mode
STILL (
)
Subject
Arbitrary
Measurement Point
Data of page: 20, address: 9B
Measuring Instrument
Adjustment Page
2F
Adjustment Address
4A to 4E
Switch setting:
FOCUS (Menu setting) ................................................... 0.5m
Connection:
1)
1)
Connect the regulated power supply and the digital voltmeter
to the battery terminal as shown in Fig. 6-1-20.
to the battery terminal as shown in Fig. 6-1-20.
Preparations:
1)
1)
Adjust the output voltage of the regulated power supply so that
the digital voltmeter display is 4.2 ± 0.1Vdc.
the digital voltmeter display is 4.2 ± 0.1Vdc.
Adjusting method:
Order Page Address Data
Procedure
1
00
01
01
Set the data.
2
Decrease the output voltage of
the regulated power supply so
that the digital voltmeter display
is 1.80 ± 0.01V.
the regulated power supply so
that the digital voltmeter display
is 1.80 ± 0.01V.
3
20
9B
Read the data, and this data is
named Dref.
named Dref.
4
2F
4A
Dref
Write the data.
5
Calculate D
4B
, D
4C
, D
4D
and D
4E
using following equations.
(Hexadecimal calculation.)
(Hexadecimal calculation.)
D
4B
= Dref + 09
D
4C
= Dref + 11
D
4D
= Dref + 15
D
4E
= Dref + 15
6
2F
4B
D
4B
Write the data.
7
2F
4C
D
4C
Write the data.
8
2F
4D
D
4D
Write the data.
9
2F
4E
D
4E
Write the data.
10
00
01
00
Set the data.
Regulated power supply
Digital voltmeter
Fig. 6-1-20.
COVER
COVER
6-38
DSC-P32
6-2. SERVICE MODE
2-1.
APPLICATION FOR ADJUSTMENT (SEUS)
The application for adjustment (SEUS) is used for changing the
calculation coefficient in signal processing, EVR data, etc. The SEUS
performs bi-directional communication between the personal
computer (PC) and the unit using the USB signal. The resultant
data of this bi-directional communication is written in the non-
volatile memory.
calculation coefficient in signal processing, EVR data, etc. The SEUS
performs bi-directional communication between the personal
computer (PC) and the unit using the USB signal. The resultant
data of this bi-directional communication is written in the non-
volatile memory.
2-1-1.
Using Method of SEUS
1. Connection
1)
Connect the HASP key to the USB port of the PC.
2)
Connect the camera to another USB port of the PC.
3)
Insert a memory stick to the camera.
4)
Confirm that the camera starts in the USB mode.
5)
Start the SEUS on the PC.
6)
Click [Connect] on the SEUS screen. If the connection is
normal, the SEUS screen will be as shown in Fig. 6-2-1,
indicating the “connected” state.
normal, the SEUS screen will be as shown in Fig. 6-2-1,
indicating the “connected” state.
Note:
The SEUS will go in “disconnect” state, if the camera is turned
off (for instance, by resetting the unit). In such a case, click
[Connect] on the SEUS screen to restore the “connected” state.
off (for instance, by resetting the unit). In such a case, click
[Connect] on the SEUS screen to restore the “connected” state.
Fig. 6-2-1.
2. Operation
• Page change
To change the page, click [Page] on the SEUS screen and enter
the page to be changed. The page is displayed in hexadecimal
notation.
the page to be changed. The page is displayed in hexadecimal
notation.
• Address change
To change the address, click [Address] on the SEUS screen and
enter the address to be changed. Or click [B] to increase the
address, click [b] to decrease the address. The address is displayed
in hexadecimal notation.
enter the address to be changed. Or click [B] to increase the
address, click [b] to decrease the address. The address is displayed
in hexadecimal notation.
• Data change
To change the data, click [Set] on the SEUS screen and enter the
data. Or click [v] to increase the data, click [V] to decrease the
data. The data is displayed in hexadecimal notation.
This operation does not write the data to the nonvolatile memory.
If you want to write the changed data, click [Store] to write it.
data. Or click [v] to increase the data, click [V] to decrease the
data. The data is displayed in hexadecimal notation.
This operation does not write the data to the nonvolatile memory.
If you want to write the changed data, click [Store] to write it.
• Data writing
To write the data to the nonvolatile memory, click [Write] on the
SEUS screen and enter the data to be written.
SEUS screen and enter the data to be written.
• Data reading
The data displayed on the SEUS screen are the data values at the
time when the pages and addresses were set, and they are not
updated automatically. To check the data change, click [Read] on
the SEUS screen and update the displayed data.
time when the pages and addresses were set, and they are not
updated automatically. To check the data change, click [Read] on
the SEUS screen and update the displayed data.
2-1-2.
Precaution on Use of SEUS
Mishandling of the SEUS may erase the correct adjustment data at
times. To prevent this, it is recommended that all adjustment data
be saved before beginning adjustments.
times. To prevent this, it is recommended that all adjustment data
be saved before beginning adjustments.
1)
Click [Page Edit] on the SEUS screen.
2)
Click [Page], and enter the page number to be saved.
3)
Click [Read] to read the data to be saved from the camera.
4)
Click [File] and save the data.
COVER
COVER
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