MZ-NH1

3-4-3. VBsAdj adjustments

Procedure:

1.In the “3-4-2. PwrAdj Adjustments” completed status, press the [FF] key to display as follows.

Display of the remote commander

240

VBsAdj

2.Apply the voltage of 5 V to the CL453 (VBUS 5V) and CL460 (VBUS GND).

3.Press the [FF] key to change the item number to 2241.

4.Adjust with [VOL+]/[VOL--]keys so that the value of digital voltmeter becomes specification value. (refer to “table 3-4-2. VBsAdj Specifications”)

5.Press the X key to write the adjusted value.

6.Press the [FF] key to select the next item, and repeat adjustments to item number 2243 at the same manner as step 3 to step 5.

Item No.

Display

Specification value

Measuring point

 

 

 

 

 

2241

 

241 REG4 **

1.13 V ± 0.01 V

CL603

 

 

 

 

 

2242

 

242 REG5 **

2.05 V + 0.02 V

CL8003

 

 

 

 

 

2243

 

243 REG6 **

3.30 V ± 0.01 V

CL8007

Note1:

“**” is adjustment value (hexadecimal number).

Note2:

Ground point of all adjustment points is CL433.

Note3:

Refer to page 17 for adjustment location.

 

Table 3-4-2. VBsAdj Specifications

7.Press the [FF]key to select the item number 2244, and turn off the power supply of battery terminal.

8.Adjust with [VOL+]/[VOL--]keys so that the voltage of between CL935 and CL433 (GND) becomes 4.10 V (− 0.02 V).

9.Press the X key to write the adjusted value.

10.Apply the voltage of 3.7 V to the battery terminal again.

11.Press the x key to display “240 VBsAdj” (Item number: 2240).

12.Turn off the voltage of 5 V to the CL453 (VBUS 5V) and CL460 (VBUS GND).

13.Press the x key three times and back to the Display Check mode.

3-5. Charge Function Check

Note1: When perform this check, don’t apply a voltage to battery terminals.

Note2: Be sure to disconnect the AC adapter when connecting the resistors. Doing so with the power supply connected causes a trouble.

Procedure:

1.Connect the 10 ohms resistor (more than 3 watts) to battery terminals.

2.Connect the AC adapter to the battery charging stand in accessories and set the main unit.

3.Enter the test mode (Display Check mode).

4.Press the [VOL+] key once to enter the Manual mode.

5.Press the [VOL+] key twice, press the [FF] key once, press the [VOL+] key once, press the [FF] key once, press the [VOL+] key twice to display as follows.

Display of the remote commander

250

ChrgLi

6.And [FF] key once again to select the item number 2251 and display “251 ChgChk **” on the LCD of remote commander.

7.Press the X key confirm that “ChgCOK” is displayed.

8.Press the x key four times and back to the Display Check mode.

9.Cut the power supply and remove the resistor that connected to the battery terminals.

3-6. Laser Power Check

Procedure:

1.In the test mode (Display Check mode), press the [VOL+] key to enter the Manual mode.

2.Open the lid and press the [FR] key continuously until the optical pick-up moves to the most inward track.

3.Set the laser power meter so that the laser beam from the optical pick-up aims at the objective lens of laser power meter at right angle.

4.Press the [VOL--]key once to display as follows.

Display of the remote commander

009

DESIGN

5.Press the [FF] key three times to select the item number 9111 and display as follows.

Display of the remote commander

111

LrefPw **

6.Confirm that the value of laser power meter is 0.67 mW ± 21%.

7.Press the [FF] key to select the item number 9112.

8.Confirm that the value of laser power meter is 0.76 mW ± 18%.

9.Press the [FF] key to select the item number 9113.

10.Confirm that the value of laser power meter is 6.25 mW ± 12%.

11.Press the x key four times and back to the Display Check mode.

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