Sony Walkman MZ-RH1 Service Manual page 19

3-5. Setting The Adjustment Values
3-5-1. Hi-MD3 setting
Preparation:
1. Perform calculation every item based on the data given by the
Hi-MD3 adjustment disc by referring to the following table.
(Round off the value in decimal place)
2. Convert the calculated value into hexadecimal number.
Note: The Hi-MD3 adjustment parameters vary depending on the disc,
and therefore use the parameters of the disc used when performing
the adjustment.
Item No. Calculating formula (*3)
0211 Pr_nominal / 0.05
(*1) Por / 0.05
0212 Kr ( 100)
0213 Pw_nominal / 0.05
(*2) Ppw / 0.05
0214 Kw ( 100)
0215 Prmin / 0.05
0216 Pwmin / 0.05
*1) If the "Pr_nominal" value is indicated, use the "Pr_nominal" value
and not used "Por" value.
*2) If the "Pw_nominal" value is indicated, use the "Pw_nominal" value
and not used "Ppw" value.
*3) Round off after the decimal point.
Table 3-5-1. Hi-MD3 adjustment parameter
Example of Calculation:
Item No. Parameter
0211 Pr_nominal 2.50 mW
0212 Kr 0.3 %/ C
0213 Pw_nominal 7.35 mW
0214 Kw 0.4 %/ C
0215 Prmin 1.9 mW
0216 Pwmin 5.8 mW
Procedure:
1. Enter the test mode (Display Check mode).
2. Press the [VOL+] key to enter the Manual mode.
key once, press the [VOL+] key once, and press
3. Press the
>
the key once again to display as follows.
>
0210
4. Press the key once to select the item number 0211.
>
5. Adjust with [VOL+]/[VOL--] keys so that the adjustment value
of EL becomes calculated value.
6. Press the key to write the adjusted value.
X
7. Press the key to next item.
>
8. Repeat adjustment from step 4 until item number 0216.
Result
Decimal Hexadecimal
50 32h
30 1Eh
147 93h
40 28h
38 26h
116 74h
DiscPr
3-5-2. Destination setting
Procedure:
1. Enter the test mode (Display Check mode).
2. Press the [VOL+] key to enter the Manual mode.
3. Press the key five time to select the item number 0113
>
and display as follows.
0113
adjustment value (hexadecimal)
4. Adjust with [VOL+]/[VOL--] keys so that the adjustment value
of EL becomes "01" (US, Canadian models) or "81" (AEP
model).
5. Press the key to write the adjusted value.
X
6. Press the key four times and back to the Display Check
x
mode.
MZ-RH1
******
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