18 lines
672 B
Plaintext
18 lines
672 B
Plaintext
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BC890XLT
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BC890XLT-800MHZ FULL RESTORE
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1. REMOVE ALL CABINET SCREWS.
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2. REMOVE 4 FACE PLATE SCREWS AND 1 BRACKET SCREW AT CENTER OF MAIN BOARD.
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3. CAREFULLY DEPRESS THE OUTSIDE EDGES OF FACEPLATE SHIELD AND TILT DOWN.
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4. UNPLUG J4 AND J5 AND RIBBON CONNECTORS J501 J502 AND J503.
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5. REMOVE FACEPLATE AND LOGIC BOARD.
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6. POSITION BOARD SO MICROPROSSOE CHIP IS ON LEFT AND MEMORY BATTERY ON RIGHT.
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7. LOCATE THE 3 CHIP RESISTORS AT CHIPS UPPER RIGHT..MARKED 104 AND
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CAREFULLY DESOLDER.
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8. INSTALL THE CHIP RESISTOR AT THE 2 EMPTY PADS CLOSEST TO MEMORY BATTERY.
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9. REASSEMBLE CAREFULLY IN REVERSE ORDER.
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10. TEST BY ENTERING FREQ. AROUND 870 MHZ.
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