9
Remove the Front Panel
(For Instruments with Serial Prefix Numbers < US4426/MY4426)
Refer to Figure 2 for this procedure.
1. Remove the side trims that cover the four screws (2).
2. Using a T-15 driver, remove the four screws (1) from the sides of the frame.
CAUTION Before removing the front panel from the signal generator, lift and support the front of the signal generators
frame.
3. Slide the front panel over the RF output connector.
4. Disconnect the W35 A3 Front Panel Auxilary Board cable from J30 of the A23 Motherboard.
5. Disconnect the W36 A1 Keyboard cable from J32 of the A23 Motherboard.
6. Using long-nose pliers, disconnect the following cables:
• W1 (I INPUT) from J7 of the A10 I/Q Multiplexer
• W2 (Q INPUT) from J8 of the A10 I/Q Multiplexer
• W3 (DATA INPUT) from J24 of the A23 Motherboard
• W4 (DATA CLOCK) from J21 of the A23 Motherboard
• W5 (SYMBOL SYNC) from J23 of the A23 Motherboard
• W6 (EXT 1 INPUT) from the A19 Daughterboard
(refer to the connector diagram located on the A19 Daughterboard cover)
• W7 (EXT 2 INPUT) from the A19 Daughterboard
(refer to the connector diagram located on the A19 Daughterboard cover)
• W8 (LF OUTPUT) from the A19 Daughterboard
(refer to the connector diagram located on the A19 Daughterboard cover)
7. Remove the front panel and lay it upside down on the table.
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