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Table 6-2
External Inspection Checklist
Maintenance— 2236 Service
Item
Inspect For
Repair Action
Cabinet and Front Panel
Cracks, scratches, deformations, and
damaged hardware or gaskets.
Touch up paint and replace defective parts.
Front-panel Controls
Missing, damaged, or loose knobs,
buttons, and controls.
Repair or replace missing or defective items.
Carrying Handle
Correct operation.
Replace defective parts.
Accessories
Missing items or parts of items, bent pins,
broken or frayed cables, and damaged
connectors.
Replace damaged or missing items, frayed
cables, and defective parts.
Table 6-3
Internal Inspection Checklist
Item
Inspect For
Repair Action
Circuit Boards
Loose, broken, or corroded solder
connections. Burned circuit boards.
Burned, broken, or cracked circuit-run
plating.
Clean solder corrosion with an eraser and
flush with isopropyl alcohol. Resolder
defective connections. Determine cause of
burned items and repair. Repair defective
circuit runs.
Resistors
Burned, cracked, broken, or blistered.
Replace defective resistors. Check for cause
of burned component and repair as
necessary.
Solder Connections
Cold solder or rosin joints.
Resolder joint and clean with isopropyl
alcohol.
Capacitors
Damaged or leaking cases. Corroded
solder on leads or terminals.
Replace defective capacitors. Clean solder
connections and flush with isopropyl alcohol.
Wiring and Cables
Loose plugs or connectors. Burned,
broken, or frayed wiring.
Firmly seat connectors. Repair or replace
defective wires or cables.
Chassis
Dents, deformations, and damaged
hardware.
Straighten, repair, or replace defective
hardware.
If any electrical component is replaced, conduct a Perfor
mance Check of the affected circuit and of other closely
related circuits (see Section 4). If repair or replacement work
is done on any of the power supplies, conduct a complete
Performance Check and, if so indicated, an instrument read
justment (see Section 5).
To prevent damage from electrical arcing, ensure that
circuit boards and components are dry before apply
ing power to the instrument.
6-3
Summary of Contents for 2236
Page 10: ...2236 Service viii The 2236 Oscilloscope ...
Page 74: ...Theory of Operation 2236 Service 3 30 ...
Page 102: ...Performance Check Procedure 2236 Service 4 21 Figure 4 1 Test setup for DMM common mode check ...
Page 242: ...2236 Service 4204 34 Figure 9 6 CTM basic block diagram ...
Page 243: ...DMM POWER S U P P LIE S 2236 Service F ig u re 9 7 C T M d e ta ile d b lo c k diag ram ...
Page 254: ...S I 0 O I 5 1 S O i 4204 21 C IR C U IT BOARD INTERCONNECTIONS ...
Page 267: ...1 2 3 4 5 6 7 8 9 J T K L M_ _ ___ N___l _ P____l S ...
Page 271: ...1 2 3 4 5 6 7 8 9 lO P2SO O U1 A TRIGGER V T O W2500 5 A 223 R E V A P R W G ...
Page 275: ......
Page 280: ......
Page 285: ...A 6 F IL T E R B O A R D lo c a te d u n d e r H V S h ie ld ...
Page 313: ...2236 Service T O U I 3 0 0 4 8 K T O UI300 II S K 0 2 2 3 6 Z Z O A Z 2 OPTION IA ...
Page 317: ...A 10 C O U N T E R T IM E R M U L T IM E T E R B O A R D A D J U S T M E N T LO C A T IO N S ...
Page 319: ...2236 Service TROUBLESHOOTING GUIDE 4206 99 4204 69A ...
Page 323: ...9 ...
Page 324: ...2 REV APR 1986 ...
Page 325: ...2236 SERVICE ...
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Page 333: ...2236 SERVICE ...
Page 334: ...2 4 2 1 ...
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