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Outline
• In this set, automatic adjustment of CD and MO can be per-
formed by entering the test mode.
However, before starting automatic adjustment, the memory
clear, power supply adjustment and laser power check must be
performed in the manual mode.
• Operation in the test mode is performed with the remote com-
mander. A key having no particular description in the text, indi-
cates a remote commander key.
• For the LCD display, the LCD on the remote commander is
shown.
Precautions for Adjustment
1. Adjustment must be done in the test mode only.
After adjusting, release the test mode.
2. Use the following tools and measuring instruments.
• Test CD disc
TDYS-1
(Part No. : 4-963-646-01)
• SONY MO disc available on the market
• Digital voltmeter
• Laser power meter
LPM-8001
(Part No. : J-2501-046-A)
• Thermometer (using the Temperature Correction)
• Personal computer
• USB cable
3. Unless specified otherwise, supply DC 1.5V from battery ter-
minals.
4. Switch position
HOLD switch ............................................... ON
Adjustment Sequence
1. NV Reset (item number: 021)
(EEPROM clear*)
r
2. Temperature Correction (item number: 015)
r
3. Power Supply Manual Adjustment
(item number: 741 to 756)
r
4. Laser Power Check
r
5. Adjustment Required Before Overall
Adjustment (item number: 865, 866)
r
6. CD Overall Adjustment (item number: 031)
r
7. MO Overall Adjustment (item number: 034)
r
8. RESUME Clear (item number 043)
r
9. Rewriting the Patch Data
(at replacement of the MAIN board)
r
10. Rewriting the NV values
* Although an adjustment value performed by power supply ad-
justment and electric offset adjustment is not cleared by NV
reset, in the NV reset 2, all NV data is cleared and the value of
NV returns to a default.
SECTION 5
ELECTRICAL ADJUSTMENTS
NV Reset
• Setting Method of NV Reset
1. Select the manual mode of the test mode, and set item number
2. Press the
3. Press the
4. Press the
Temparature Correction
• Adjustment Method of Temperature Correction
1. Select the manual mode of the test mode, and set the item num-
Manual Mode
2. Measure the ambient temperature.
3. Adjust with
Overall Mode
4. Press the
5. Press the
Manual Mode
021 NV Reset (see page 13).
LCD display
021
R e s N V C C
key.
–
LCD display
021
R e s O K ?
–
key once more.
LCD display
021
R e s * * *
NV reset (after several seconds)
021
R e s e t !
key to quit the manual mode, and return to the
x
test mode (display check mode).
ber 015 (see page 13).
LCD display
015
S e t T m p
** : adjusted value
[VOL +]
[VOL --]
or
(hexadecimal value) becomes the ambient temperature.
(Initial value : 19h = 25˚C, Adjusting range : 80h to 7fh
(–128˚C to +127˚C))
key to write the adjusted value.
–
key to quit the manual mode, and return to the
x
test mode (display check mode).
AM-NX1
* *
key so that the adjusted value
17
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