Manual Adjustment; Hswp Adjustment - Sharp VL-PD3U Service Manual

L-PD3U
[Making adjustments]
Adjusting the servo system controller and related parts
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Setting the system codes
Replacement of IC703 E*PROM requires the following data to be set in this order.
:Procedure]
set the unit to the VCR mode and set the data for each address.
Code 1. Model code 2. Destination
3. Specifications 4. Menu selection 5. Software switching 6. Shutdown 7. Calendar switching
code code code code setting code
Address 01 09 02 OA 03 OB
04 oc 05 OD 06 OE 07 OF
Data ,OO,FF.Ol.FE. 10, EF, 00 , FF , 00 ,
FF n 9B 64 m m 98 m 67 .
When replacing the IC703 and IC302 E*PROM, first make the following settings and then start the adjustments.
(1) Electromagnetic conversion
(2) The others
Address 27 28 2B 35 *IO5
Data 40 90 CO 58 80
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* The address uses only when replacing the IC302.
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Adjustment with automatic machine
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Mode
Procedure
Examples
VCR ADJ mode
1) Using the 12 command, set the VCR adjustment mode.
2) Using the 20 command, give the E*PROM Write permission.
3) Set the system code with the 22 command for each type.
4)
Using the command, set write inhibition.
5) Using the command, cancel the adjustment mode.
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During E*PROM (IC703) replacement.
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Manual adjustment
Mode
Procedure
Examples
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During E*PROM (IC703) replacement.
3)
4)
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5)
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6)
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7)
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VCR ADJ mode
Set the VCR adjustment mode, and set data of each address.
1) Set the CAM/OFF/VCR selection switch to VCR.
2) Press "CONTINUE" + "VCR adjustment" on the remote controller to set the VCR adjustment mode.
(At this time an indication "VCR ADJ" appears at the left upper side.)
Enter a setting corresponding to the address.
<Setting method>
Adjust the address by moving up and down the blinking numeral with the FF and REW key, and fix the address
by pressing the PB key.
Adjust to the setting by moving up and down the blinking numeral with the FF or REW key, and set data by
pressing the PB key.
Press the STOP key to set the address set state.
Repeat the operations 3), 4) and 5) as much as input addresses. After completion of input of all items hold
down the STOP key for about 3 seconds to cancel the VCR adjustment mode.
Set the CAM/OFF/VCR selection switch to OFF.
2. HSWP adjustment
Mode
Procedure
Examples
VCR ADJ mode
1) Play back the alignment tape in the video mode.
2) Press the "CONTINUE" and "HSWP ADJ" keys on the adjustment remote control in this .order.
+ This executes the HSWP adjustment.
When the adjustment is successful, the LCD lights up [OK] and the cassette is automatically ejected. If not
properly adjusted, the LCD lights up [HSWP].
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During mechanism replacement.
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During E*PROM replacement (lC302 inside the head amplifier circuit board).
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