Maintenance— 2236 Service
3.
Disconnect the following connectors from the Display
circuit board.
a. P2000, a ten-wire connector.
b. P2050, a nine-wire connector.
4.
Remove the three screws located near the center
front, middle, and rear of the CTM circuit board, identified by
the words “Remove Screw To Unhinge” on the circuit
board.
5.
With one hand secure the left side of the CTM circuit
board and with the other hand lift up the right end of the
Board Latch. Raise up the CTM circuit board to its standing
position, ensuring that the Board Latch clears the top of the
chassis side rail. Release the Board Latch and lock it in
place into the chassis side rail.
6.
Disconnect the following connectors from the inside
of the instrument.
a. P2100, a four-wire connector located at the top of the
Alt Sweep circuit board.
b. P2200, a six-wire connector located on the right side
of the Alt Sweep circuit board.
c.
P2300, a five-wire connector located on the right side
of the Main circuit board.
d.
P2400, a five-wire connector located on the right side
of the Main circuit board.
e.
P2500, a two-wire connector located on the Main cir
cuit board under the Bottom Shield, Attenuator and Timing
circuit-board module.
f.
P2600, a two-wire connector located on the Main cir
cuit board behind the Bottom Shield, Attenuator and Timing
circuit-board module.
g.
P2700, a three-wire connector located on the Main
circuit board behind the Alt Sweep circuit board.
h.
P2800, a four-wire connector located at the rear of
the CH 1 Logic Switch circuit board.
i.
P2900, a two-wire connector located on the left side of
the CH 1 VOLTS/DIV switch assembly under the top shield.
7.
Remove the cable strap from the Alt Sweep circuit
board by squeezing the strap together with a long-nose pli
ers on the back side of the circuit board. Slide the strap
through the hole toward the front of the Alt Sweep circuit
board.
8.
Release the Board Latch and lower the CTM circuit
board (lifted up in step 5) into the instrument.
9.
Remove the screw on top of the right chassis side rail
that holds the rear hinge to the CTM circuit board, separate
hinge and remove loosned half.
10.
Slide the CTM circuit board back until the front and
middle hinges separate.
11.
Pull forward and lift the CTM circuit board out of the
instrument.
To reinstall the CTM circuit board, perform the following
steps:
12.
Insert the CTM circuit board into the top of the in
strument. Ensure that the two forward hinges on the CTM
circuit board are behind the hinges mounted on the chassis
side rail.
13.
Slide the CTM circuit board forward until the middle
and the front hinges on the CTM circuit board are inserted
into the hinges on the chassis rail.
14.
Replace separated portion of the rear hinge and the
screw removed in step 9.
15.
Raise up and secure the CTM circuit board to the
chassis rail (released in step 8).
16. Reinstall the cable strap remove in step 7.
17.
Reconnect the eight connectors from the CTM cir
cuit board (disconnected in step 6).
18.
Release the Board Latch and lower the CTM circuit
board into the instrument (removed in step 5).
6-26
Содержание 2236
Страница 10: ...2236 Service viii The 2236 Oscilloscope ...
Страница 28: ...Specification 2236 Service 1 18 ADD JAN 1985 Figure 1 2 Physical dimensions of the 2236 Oscilloscope ...
Страница 74: ...Theory of Operation 2236 Service 3 30 ...
Страница 75: ...Theory of Operation 2236 Service Figure 3 13 Typical waveforms for the Delta Time function with Valt HI 3 31 ...
Страница 102: ...Performance Check Procedure 2236 Service 4 21 Figure 4 1 Test setup for DMM common mode check ...
Страница 240: ...2236 Service CTM INTERFACE SIGNALS F ig u re 9 4 O s c illo s c o p e b a sic b lo c k diag ram 4294 46 ...
Страница 241: ... VERT DEFL 2236 Service 4 2 0 6 3 5 4 2 0 4 4 7 F ig u re 9 5 O scillo sco p e d e ta ile d b lo c k diag ram ...
Страница 242: ...2236 Service 4204 34 Figure 9 6 CTM basic block diagram ...
Страница 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 ...
Страница 253: ...A10 COUNTER TIMER MULTIMETER BOARD F ig u re 9 8 C irc u it b o a rd lo c a tio n Illu s tra tio n ...
Страница 254: ...S I 0 O I 5 1 S O i 4204 21 C IR C U IT BOARD INTERCONNECTIONS ...
Страница 255: ...2 2 3 6 S e rv ic e A ll c o m p o n e n ts on th e A 2 A tte n u a to r b o a rd are lo c a te d on D ia g r a m ...
Страница 267: ...1 2 3 4 5 6 7 8 9 J T K L M_ _ ___ N___l _ P____l S ...
Страница 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 ...
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Страница 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 ...
Страница 311: ...1 2 3 4 5 6 7 8 9 A I B L c T D T E t F ___ ____G____ ___ H___ j ____ J _j K j_ I ____i_ i___ N _ _ j___ P j S ...
Страница 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 ...
Страница 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 ...
Страница 319: ...2236 Service TROUBLESHOOTING GUIDE 4206 99 4204 69A ...
Страница 323: ...9 ...
Страница 324: ...2 REV APR 1986 ...
Страница 325: ...2236 SERVICE ...
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