Wavetek 145 Instruction Manual page 41

E22 (brown);
E48 (green);
E30 (coax, center conductor);
E31 (coax, shield);
J6 (TTL BNC), E40 and E41 ;
J5 (TTL BNC), E42 and E43;
J4 (ECL BNC), E44 and E47;
J3 (ECL BNC), E45 and E46.
21. Unsolder the green-yellow wire connecting the
front and rear panels.
22. Slide out the trigger/pulse board.
6.5.2 Reassembly
Review the following procedure and identify
components using drawings 0102-00-0621 and
0102-00-0575 (refer to Section 7).
1. Turn the unit upside down (bottom of unit up).
2. Insert the trigger/pulse board (component side
up).
3. Solder the following wires to the board:
4. Secure the power switch to the trigger/pulse
board.
E1 (blue);
E2 (white-blue);
E3 (blue);
E4 (red);
E5 (white-red);
E6 (red);
E7 (green);
E8 (green);
E30 (coax-center conductor);
E31 (coax-shield);
J6 (TIL BNC), E40 and E41;
J5
(TT[
BNC), E42 and E43;
J4 (ECL BNC), E44 and E47;
J3 (ECL BNC), E45 and E46;
E9 (blue);
E10 (red);
E11 (violet);
E12 (white);
E13 (white);
E14 (white);
E15 (gray);
E16 (orange);
E17 (red);
E18 (white-black);
E19 (yellow);
E22 (brown);
E48 (green).
5. Solder the green-yellow wire connecting the
front and rear panels.
6. Slide in the generator board (component side up).
7. Secure the four screws attaching the generator
and trigger/pulse boards together.
8. Install the two screws securing the generator to
the left side panel mounting brackets.
9. Attach all knobs to the front panel.
10. Slide the rear panel and right side panel into
position. Align the wires with notched locations
on the generator board.
11. Install the two screws securing the rear and left
side panel.
12. Secure the front and right side panels with two
screws.
13. Install the two screws securing the generator to
the right side panel mounting brackets.
14. Secure the heat sink to the rear panel using
three screws.
15. Connect the following wires to the generator
board:
E4 (red), E5 (brown) and E3 (orange) dial pot;
E1 (brown) and E2 (white-black) VCG;
E6 (green) and E7 (white-black) GCV;
E28 (coax, center conductor) and E29 (coax .
shield);
E26 (yellow) and E27 (white-black) Ext DC;
E23 from E34 of trigger/pulse board;
E21 from E39 of trigger/pulse board;
E24 from E37 of trigger/pulse board;
E25 from E38 of trigger/pulse board;
Connect the Molex connector.
16. Solder the large No. 18 ground wire to the output
BNC.
17. Visually inspect the instrument for missing hard-
ware and disconnected wires.
18. Attach top and bottom covers with four screws
for each cover.
19. Check the unit for proper operation.
6-5