364 E8257D/67D, E8663D PSG Signal Generators Service Guide
Assembly Replacement
Rear Panel (Option 1EM)
— W6 (PULSE VIDEO OUTPUT) from A11 Pulse/Analog Modulation
Generator J203
— W7 (PULSE SYNC OUTPUT) from A11 Pulse/Analog Modulation
Generator J202
— W5 (PULSE/TRIGGER GATE INPUT) from A11 Pulse/Analog
Modulation Generator J201
— W3 (LF OUTPUT) from A11 Pulse/Analog Modulation Generator
J403
— W2 (EXT 2 INPUT) from A11 Pulse/Analog Modulation Generator
J402
— W1 (EXT 1 INPUT) from A11 Pulse/Analog Modulation Generator
J401
— W56 (– Q OUT) from A13 I/Q MUX J14 (E8267D only)
— W57 (– I OUT) from A13 I/Q MUX J13 (E8267D only)
— W58 (Q OUT) from A13 I/Q MUX J12 (E8267D only)
— W59 (I OUT) from A13 I/Q MUX J11 (E8267D only)
— W50 (Q IN) from A13 I/Q MUX J8 (E8267D only)
— W49 (I IN) from A13 I/Q MUX J7 (E8267D only)
— W65 (BASEBAND GEN REF IN) from A14 Baseband Generator Board
J800 (E8267D only)
9. Using the 5/16” open–ended wrench, disconnect the following RF cables
— W67 (.25–3.2 GHz COH CARRIER) from Rear Panel
— W73 from AT1 115 dB High–Power Mechanical Attenuator
— (1 GHz Out) from the Rear Panel
10.Disconnect the following ribbon cables:
— W64 from A17P2 (E8267D only)
— W90 from A17P1 (E8267D only)
— W20 from A20 SMI J1
— W18 from A21 Rear Panel Interface J3
— W23 from A21 Rear Panel Interface J2
— W136 from A40 Compact Flash PCA (if Option 008/009 is installed)
11.If the signal generator has option UNR/UNX, disconnect the W48 flexible
cable from A32 10 MHz Crystal Oscillator (Option UNR/UNX).
12.Using the T–10 driver, remove the two screws (1) that secure the Rear
Panel to the left and right struts.
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