Sony Walkman MZ-RH1 Service Manual page 18

MZ-RH1
Item No. Display Specification value
2241 REG4 ** 1.13 V
2242 REG5 ** 2.05 V + 0.02 V
2244 DDC5 N ** 4.20 V – 0.02 V
2245 DDC5 C ** 4.45 V – 0.02 V
2246 DDC5 L ** 4.20 V – 0.02 V
Note1: "**" is adjustment value (hexadecimal number).
Note2: Ground point of all adjustment points is CL965.
Note3: Refer to page 17 for adjustment location.
Table 3-2-2. VBsAdj Specifications
3-3. Charge Function Check
Note1: When perform this check, don't apply a voltage to battery terminals.
Note2: Be sure to turn the power off when connecting the resistor. Doing
so with the power supply connected causes a trouble.
Procedure:
1. Connect the resistor (10 , more than 3W) to battery terminals.
2. Connect the USB cable, AC adapter and AC cord, and turn the
power on.
3. Enter the test mode (Display Check mode).
4. Press the [VOL+] key to enter the Manual mode.
5. Press the [VOL+] key twice, press the
[VOL+] key once.
6. Press the key once, press the [VOL+] key twice to display
>
as follows.
2250
7. Press the key to select the item number 2251.
>
2251
8. Press the key to check the "ADJ OK" that is displayed.
X
9. Press the key four times and back to the Display Check
x
mode.
18
Measuring point
0.01 V CL8001
TP8065
CL964
CL964
CL964
key once, press the
>
ChrgLi
ChrChk **
adjustment value (hexadecimal)
3-4. Laser Power Check
Procedure:
1. Enter the test mode (Display Check mode).
2. Press the [VOL+] key to enter the Manual mode.
3. Open the upper panel and press the
until the optical pick-up moves to the most inward track.
4. Press the [VOL--] key once to display as follows.
9000
5. Press the key three times to select the item number 9111
>
and display as follows.
9111
6. 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. (Confirm it with the disc not inserted)
7. Confirm that the value of laser power meter is 0.860 mW
19.2%.
8. Press the key to select the item number 9112.
>
9. Confirm that the value of laser power meter is 0.763 mW
18.2%.
10. Press the key to select the item number 9113.
>
11. Confirm that the value of laser power meter is 6.87 mW
12%.
12. Press the key four times and back to the Display Check
x
mode.
key continuously
.
DESIGN
LrefPw **