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- BC890XLT
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- Subject: bc890xlt-800mhz full restore
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- 1. remove all cabinet screws.
- 2. remove 4 face plate screws and 1 bracket screw at center of main board.
- 3. carefully depress the outside edges of faceplate shield and tilt down.
- 4. unplug j4 and j5 and ribbon connectors j501 j502 and j503.
- 5. remove faceplate and logic board.
- 6. position board so microprossoe chip is on left and memory battery on right.
- 7. locate the 3 chip resistors at chips upper right..marked 104 and
- carefully desolder.
- 8. install the chip resistor at the 2 empty pads closest to memory battery.
- 9. reassemble carefully in reverse order.
- 10. test by entering freq. around 870 mhz.
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