When Replacing Ic5A0; Electrical Adjustments - Mitsubishi Electric HS-U449 Service Manual

HOW TO INITIALIZE THE E
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A replacement E PROM is not initialized before shipping, so the E
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Initialize the E PROM by following the steps below.
1. Press and hold the POWER button on the set for 8 seconds.
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2. E PROM initial setting is completed.

WHEN REPLACING IC5A0

When replacing IC5A0, be sure to press the RESET button after turning on the power.

ELECTRICAL ADJUSTMENTS

Perform only the alignments required. If proper equipment is not available, do not attempt an alignment.
¢ ¢ PRE-ADJUSTMENT SETTINGS
• Set the PerfecTape to "MANUAL" mode.
¢ ¢ TEST EQUIPMENT
• Oscilloscope (10:1 probe unless 1:1 specified.)
• Miscellaneous electrical tools
¢ ¢ ALIGNMENT TAPES
• NS1...................Part No.859C339O00
Stair step, Color Bars, RF, 1kHz audio (SP)
• NM6KE2...........Part No.859C339O90
Monoscope, 6kHz audio (SP)
2 PROM
PROM must be initialized when replaced.
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• NM3KE6...........Part No.859C339O50
Monoscope, 3kHz audio (EP)
• NMX.................Part No.859C568O60
Monoscope, 3kHz audio (SP)
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