Sony Cyber-shot DSC-F505, Service Manual

Page: 108 / 129

5-40
1-6. SYSTEM CONTROL SYSTEM ADJUSTMENT
1. Battery End Adjustment (SY-56 board)
Check the battery end voltage.
Mode STILL
Subject Arbitrary
Measurement Point Display data of page: 2, address: 51
Measuring Instrument Adjustment remote commander
Adjustment Page D
Adjustment Address 30 to 34, 4A
Connection:
1)
Connect the regulated power supply and the digital voltmeter
to the battery terminal as shown in Fig. 5-1-24.
Adjusting method:
1)
Adjust the output voltage of the regulated power supply so that
the digital voltmeter display is 3.5 ± 0.1Vdc.
2) Turn off the power supply.
3) Turn on the HOLD switch of the adjustment remote
commander.
4) Turn on the power supply.
5) Insert the memory stick to the unit, and set to the STILL mode.
6) Set the FOCUS switch MANUAL side.
7) Select page: 0, address: 01, and set data: 01.
8) Decrease the output voltage of the regulated power supply so
that the digital voltmeter display is 3.00 ± 0.01Vdc.
9) Select page: 2, address: 51, read the data, and this data is named
Vref.
10) Select page: D, address: 30, set data: Vref, and press the PAUSE
button of the adjustment remote commander.
11) Convert Dref to decimal notation, and obtain Dref’. (Refer to
Table 5-2-1. “Hexadecimal-decimal conversion table” of “5-2.
Service mode”)
12) Calculate V
31
', V
32
', V
33
', V
34
' and V
4A
' using following equations
(decimal calculation), convert it to a hexadecimal number, and
input each adjustment address.
Address: 31 V
31
' = Vref’+3
Address: 32 V
32
' = Vref’+10
Address: 33 V
33
' = Vref’+10
Address: 34 V
34
' = Vref’+10
Address: 4A V
4A
' = Vref’+17
Note: After setting each data, be sure to press the PAUSE button.
13) Select page: 0, address: 01, and set data: 00.
Fig.5-1-26.
Regulated power supply
(3.5
±
0.1 Vdc)
Digital voltmeter
CN001
1 3
DD-131 BOARD