Service manual

9 205
Parts Replacement
Replacement Procedure
9. Parts Replacement
6. Gradually pull the rear panel assembly out from the rear frame.
A1 CPU Board Replacement
Tools Required
• Torx screwdriver, T15
• Pozidriv Screwdriver, pt size #1 (small), #2 (medium)
• IC Extractor
Procedure
1. Remove the bottom cover as described in the “Bottom Cover Removal” procedure.
2. Disconnect all cables and wires from A1 CPU Board.
3. Remove the EEPROM from A1 (see Figure 9-8).
4. Mount the EEPROM on the replacement A1.
A2/A8/A50/A51 Replacement
Tools Required
• Torx screwdriver, T15
• Pozidriv Screwdriver, pt size #1 (small), #2 (medium)
Procedure
1. Remove the top covers as described in the “Top Cover Removal” procedure.
2. Remove the top shield.
3. Disconnect all cables from the A2/A8/A50/A51 board.
4. Lift the extractors at the top of the A2/A8/A50/A51 board, and lift out the board out.
A3 Hp Amplifier Replacement
Tools Required
• Torx screwdriver, T15
• Pozidriv Screwdriver, pt size #1 (small), #2 (medium)
Procedure
1. Remove the top cover as described in the “Top Cover Removal” procedure.
2. Remove the top shield.
3. Disconnect cables “K” and “L” from the A2 board.
4. Disconnect all cables from the A3 Hp Amplifier.
5. Lift the extractors at the top of the A3 Hp Amplifier, and lift the A3.