TM
9-6625-474-14&P-3
Circuit Board Removal
Remove the two screws and two fasteners attaching the
rear of the plug-in frame. See Fig. 5-6. The bottom
fasteners require a 3/16 inch wrench. Remove the front
panel knob connected to the DISPLAY. Unsolder the wires
to the front panel connectors. Disconnect all plugs to front
panel connections. Remove the four screws as shown in
Fig. 5-7. Remove both circuit boards by sliding backwards
and out. To separate the two circuit boards, remove the
four screws attaching the Auxiliary board to the Main
board. When separating or replacing these boards, use
care to avoid bending the interconnecting pins.
Switch Maintenance
After separating the two boards, the front panel lever
switches may be removed by removing the three screws
attaching each lever switch to the circuit board. Use care
when removing or assembling the lever switches to the
circuit boards to prevent bending the contact fingers.
When reassembling, carefully align the screw holes on the
switch cover with the board. Place the switch cover on the
board in the proper position before inserting the screws.
To remove the front panel pushbutton switches, refer to
Fig. 5-8.
Fig. 5-8. Pushbutton switch removal.
To clean the board and switch contacts, use a
lubricated contact cleaner such as, No Noise Contact
Restorer.
Front Panel Latch Removal
To replace the latch, remove the screw under the pull
tab. Pry up the pull tab bar from the latch assembly.
Chemical Corporation, 813 Communipaw Avenue,
Jersey City, N.J. 07304
Содержание DC503a
Страница 1: ...e x _ 1 v w W i L ...
Страница 16: ...DC 503A DC 503A Universal Counter Timer REV A FEB 1981 XIV ...
Страница 27: ...Fig 2 2 Controls and connectors Operating Instructions DC 503A 2977 fli English 2 3 ...
Страница 39: ...Fig 2 2 Commandes et prises Instructions d utilisation DC 503A French 2 3 ...
Страница 51: ...Abb 2 2 Bedienungselemente and Anschliisse Bedienungsanleitung DC 503A German 2 3 ...
Страница 63: ...Fig 2 2 Controls and connectors Operating Instructions DC 503A 2971 01 Japanese 2 3 ...
Страница 125: ...Fig 8 2 Auxiliary Board A12 Assy ADJUSTMENT LOCA 2971 1 6 ...
Страница 169: ...SEE END OF MPL FOR WIRE ASSEMBLIES O1 0 pG C 0 DC 503A ...
Страница 186: ...0 2 TM 9 6625 474 14 P 3 Fig 0 1 DC 503A Universal Counter Timer ...
Страница 188: ...Table 1 1 1 2 TM 9 6625 474 14 P 3 ...
Страница 189: ...Table 1 1 1 3 TM 9 6625 474 14 P 3 ...
Страница 190: ...Table 1 1 1 4 TM 9 6625 474 14 P 3 ...
Страница 191: ...Table 1 1 1 5 TM 9 6625 474 14 P 3 ...
Страница 192: ...1 6 Table 1 1 TM 9 6625 474 14 P 3 ...
Страница 193: ...Table 1 1 1 7 Table 1 2 Table 1 3 TM 9 6625 474 14 P 3 ...
Страница 194: ...Table 1 3 Table 1 4 1 8 TM 9 6625 474 14 P 3 ...
Страница 197: ...2 3 TM 9 6625 474 14 P 3 Fig 2 2 Controls and connectors ...
Страница 211: ...3 5 Fig 3 1 TM 9 6625 474 14 P 3 ...
Страница 219: ...4 2 TM 9 6625 474 14 P 3 Table 4 1 LIST OF TEST EQUIPMENT REQUIREMENTS ...
Страница 240: ...5 7 TM 9 6625 474 14 P 3 Fig 5 9 Rear interface connector assignments ...
Страница 256: ...8 3 8 4 blank TM 9 6625 474 14 P 3 ...
Страница 257: ...8 5 8 6 blank TM 9 6625 474 14 P 3 ...
Страница 258: ...Fig 8 2 Fig 8 1 8 7 8 8 blank TM 9 6625 474 14 P 3 ADJUSTMENT LOCATIONS ...
Страница 259: ...8 9 8 10 blank TM 9 6625 474 14 P 3 PARTS LOCATION GRID Table 8 1 COMPONENT REFERENCE CHART See Fig 8 3 ...
Страница 260: ...TM 9 6625 474 14 P 3 8 11 8 12 blank ...
Страница 261: ...Fig 8 4 8 13 8 14 blank TM 9 6625 474 14 P 3 Table 8 2 COMPONENT REFERENCE CHART See Fig 8 4 PARTS LOCATION GRID ...
Страница 262: ...TM 9 6625 474 14 P 3 8 15 8 16 blank ...
Страница 263: ...8 17 8 18 blank TM 9 6625 474 14 P 3 Table 8 3 COMPONENT REFERENCE CHART See Fig 8 3 ...
Страница 264: ...8 19 8 20 blank TM 9 6625 474 14 P 3 ...
Страница 265: ...8 21 8 22 blank TM 9 6625 474 14 P 3 Table 8 4 COMPONENT REFERENCE CHART See Fig 8 3 ...
Страница 266: ...8 23 8 24 blank TM 9 6625 474 14 P 3 ...
Страница 267: ...8 25 8 26 blank TM 9 6625 474 14 P 3 DC 503A Table 8 5 COMPONENT REFERENCE CHART See Fig 8 4 ...
Страница 268: ...8 27 8 28 blank TM 9 6625 474 14 P 3 ...
Страница 269: ...8 29 8 30 blank TM 9 6625 474 14 P 3 DC 503A Table 8 6 COMPONENT REFERENCE CHART See Fig 8 3 ...
Страница 270: ...8 31 8 32 blank TM 9 6625 474 14 P 3 ...
Страница 271: ...8 33 8 34 blank TM 9 6625 474 14 P 3 DC 503A Table 8 7 COMPONENT REFERENCE CHART See Fig 8 4 ...
Страница 272: ...8 35 8 36 blank TM 9 6625 474 14 P 3 ...
Страница 273: ...Fig 8 5 8 37 8 38 blank DC 503A TM 9 6625 474 14 P 3 PARTS LOCATION GRID Table 8 8 COMPONENT REFERENCE CHART ...
Страница 274: ...8 39 8 40 blank TM 9 6625 474 14 P 3 ...
Страница 275: ...8 41 8 42 blank TM 9 6625 474 14 P 3 DC 503A Table 8 9 COMPONENT REFERENCE CHART See Fig 8 3 ...
Страница 276: ...8 43 8 44 blank TM 9 6625 474 14 P 3 ...
Страница 277: ...8 45 8 46 blank TM 9 6625 474 14 P 3 DC 503A Table 8 10 COMPONENT REFERENCE CHART See Fig 8 4 ...
Страница 278: ...8 47 8 48 blank TM 9 6625 474 14 P 3 ...
Страница 291: ...D 1 TM 9 6625 474 14 P 3 APPENDIX D MANUAL CHANGE INFORMATION ...
Страница 292: ...D 2 TM 9 6625 474 14 P 3 ...
Страница 293: ...D 3 TM 9 6625 474 14 P 3 P a g e 1 o f 2 ...
Страница 294: ...Page 2 D 4 TM 9 6625 474 14 P 3 ...
Страница 296: ...D 6 TM 9 6625 474 14 P 3 ...
Страница 298: ......
Страница 299: ...THE METRIC SYSTEM AND EQUIVALENTS ...
Страница 300: ...PIN 056816 000 ...