System Control System Adjustments; Battery Down Adjustment - Sony Cyber-shot DSC-P1 Service Manual

1-6.

SYSTEM CONTROL SYSTEM ADJUSTMENTS

1. Battery Down Adjustment

Set the battery end voltage.
If the voltage is incorrect, the life of battery will shorten.
The image at the battery end will also be rough.
Mode
Subject
Measurement Point
Measuring Instrument
Adjustment Page
Adjustment Address
Connection:
1) Connect the regulated power supply and the digital voltmeter
to the battery terminal as shown in Fig. 5-1-27.
Preparations before adjustment:
1) Adjust the output voltage of the regulated power supply so
that the digital voltmeter display is 3.6 ± 0.1 Vdc.
2) Turn off the power supply.
3) Turn the HOLD switch of the adjusting remote commander.
4) Turn on the power supply.
5) Insert the memory stick to the unit, and set the STILL mode.
6) Set the FOCUS switch in MANUAL mode.
Adjusting remote
commander
CPC-9jig
(J-6082-393-C)
18
1
Regulated power supply
(6.0 to 7.2 Vdc)
STILL
Arbitrary
Displayed data of page: 2,
address: 51
Adjusting remote commander
D
90 to 94
1
18
PD-137 board
CN881
Adjusting method:
Order Page Address Data
1 0
2 6 2C
3
4 2
5 2
6 D
7
8
9
10 D
11 D
12 D
13 D
Note: Refer to table 5-2-2. "Hexadecimal-decimal conversion
table"
Processing after Completing Adjustments:
Order Page Address Data
1 6 2C
2 0
BT-2 board
CN001
qd pin
Fig. 5-1-27
5-33
Procedure
01 01
01
Decrease the output voltage
of the regulated power supply
so that digital voltmeter display
is 3.1 ± 0.01 Vdc.
Check the data.
51 74 to 86 : Normal
00 to 73, 87 to FF: Defective
Read the data, and this data
51
is named Dref.
90 Dref Press PAUSE button.
Convert Dref to decimal notati
on and obtain Dref'. (Note)
Calculate D ', D
91
and D ' using following
94
equations(decimal calculation)
D '=Dref'+3
91
D '=Dref'+10
92
D '=Dref'+10
93
D '=Dref'+10
94
Convert D ', D
91
D ' to a hexadecimal number,
94
and obtain D , D
91
D (Note)
94
91 D Press PAUSE button.
91
92 D Press PAUSE button.
92
93 D Press PAUSE button.
93
94 D Press PAUSE button.
94
Procedure
00
01 00
Regulated power supply
(3.1 ± 0.01 Vdc)
CN001
qa pin
Digital voltmeter
', D '
92 93
', D ' and
92 93
, D and
92 93