18
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
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
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
5. Press the
[FF]
key three times to select the item number 9111
and display as follows.
Display of the remote commander
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.
2 4 0
V B s A d j
2 5 0
C h r g L i
0 0 9
D E S I G N
1 1 1
L r e f P w * *
