User manual TEKTRONIX 2215

[. . . ] 2-11 REV NOV 1981 2215 Service TA BLE O F CO NT ENTS (cont) Page S ECTIO N 3 THE ORY O F OPER ATION (co n t) Page SECTIO N 5 AD JU STMEN T PROC E DURE I NT ROD UCTIO N . . S ECTION 6 DE TAI LE D CI RCU IT D ESC R I PTION (cont) AUTO I NTEN SITY AND Z-AXIS AM PL I F IER . 3-19 3-19 3-20 3-20 3-20 3-21 3-22 3-22 3-22 3-22 3-23 3-24 3-24 3-24 3-24 . 5-20 MAINTEN AN CE STATIC-S EN SITI VE CO MPONENTS PREVEN TI VE MAI N TEN ANC E . [. . . ] Connect th e leveled sine-wave generator output via -connecto r and two 50- ca bles to the EXT Z-AXIS I NPUT connector on the rear panel an d to the CH 1 O R i np ut connector. 1 . Adjust the ge nerator cont rols to produce 5-volt, 50 kH z display. c. The Vertical Midrange Ch a nnel 1 POSITIO N VERTICA L MOD E CH 1 2V C H 1 VO LTS/DI V CH 1 VO LTS/DI V Varia ble CA L dete nt Channel 1 AC-G ND-DC DC positive part of the sine wave sh ould be of lower intensity th an the negative part . d. Set : Horizontal 10 0 Mid range POSITIO N D LY HO R IZO NTA L MOD E 20 s S E C/DI V CA L detent S E C/DI V Varia ble CH 1 VOLTS/DI V S E C/DI V mV . 5 ms Trigger b. Connect the 6120 Pro be to the CH 1 0R i nput co nnector and i n sert th e probe ti p into the PR OBE ADJU ST j ac k on the instrument front panel. If necessary, adj ust the probe com pensation for flat-topped s qua rewave d isplay . c. CHE CK-Display is 5 divisions ±1 division (4 to 6 VARH O LDO FF MOD E SLOPE LEVEL SO UR CE N ORM AUTO . f Mid r ange VER T MOD E divisions) . d. Discon n ect the test setu p. 4- 1 2 REV NOV 1981 Section 5-2215 Se rvice ADJU ST MEN T PR OC E D URE I NTR OD U CTIO N USI N G TH IS PR OC E D URE I MP O RTANT-PLEAS E READ BEF O RE PURPOSE Th e "Adjustment Proced u re" is used to return t he instrument to conformance with its "Performance R eq u irements" as listed in the "Specification" (Section 1) . T hese ad ju stments should be performed only afte r t he chec ks in the "Performance C hec k Proce dure" (Section 4) have i nd icated need fo r ad justment of the instrument. be accomp lished at an am b ient temperatu re between +20°C and +30° C, an d th e instrume nt must have had warm-up perio d of at least 20 minutes. PARTIAL PROCEDURES This procedu re is structured in subsections to permit ad justment of in d ivid ual sectio n s of the instrument (except the Power Supply) whenever complete rea djustment is not required . For exam p le, if only the Vertical section fails to meet the Perfo rma nce R equirements (o r has had repairs ma d e or components re p lace d ), it can be readj usted with little or no effect on ot her sections of the inst rument. However, if the Powe r S up ply sectio n has undergone repairs or adj ustments that change the absolute value of any of the su pp ly voltages, complete readju stment of the i nst rume nt may be required . At t h e begin n i ng of each subsection th ere is an equi pmentreq u ired list sh owing only the test equ i pment necessary for performi ng th e steps in that su bsection. In th is list, the item number following each piece of equi p ment correspond s to the item nu mber listed in Ta ble 4-1 . Before pe rforming th is proced ure, d o not preset any internal controls and do not ch ange th e -8 . 6-V Power- 8. 11 . Make i nitial co n trol setti ngs as listed at t he beginni ng of each s ub section. T hen co nn ect t he test equ i pme n t to an appropriate ac-power-in put source an d connect the 2215 to variable autotransformer (Item 10 in Ta ble 4-1) that is set for 115 V ac . App ly powe r an d allow 20-minute warm-up period before commencing any adjustme nts . The most accurate display ad ju stme nts are ma d e with stable, well-focused , low-intensity display . Unless ot herwise noted , adju st the AUTO I NTEN SITY, AUTO FOC US, and TR IGGER LEVEL controls as need ed to view the display. Wherever possible in th is procedure, instrume nt performance is first ch eck ed before an a dju stme n t is made. Steps co ntain ing bot h c h ecks an d ad ju stments are titled "Chec k/Ad just. " Those steps with only chec ks are title d "Chec k. " . Chec k/Adj ust Auto Trigger Centering a n d TR IG'D LE D Ope ration . . 5-20 Adjustment Procedure-2215 Service P O WER SUPPLY A N D C RT DIS PLAY Equi p ment Require d (see Table 4-1) Time-Mark Generator (Item 3) 50- BNC Cable (Item 4) 50- BNC Termination (Item 5) Variable Autotransformer (Item 10) see at the back f this manual for location of test points an d adjustments. Leveled Sine-Wave Generator (Item 2) Test Oscilloscope and 1 P robe (Item 12) Screwdriver (Item 14) DC Voltmeter (Item 13) Digital Voltmeter (Item 11) Before applying power to th e 2215, make th e initial power source th rough variable autotra nsformer, con trol settings Connect th e 2215 to an appropriate adjusted for an outp ut of 115 V. Apply power to both the instrument an d the test equ ipmen t and allow 20-minute warm-up period before commencing the adjustments and ch ec ks. PR OCEDURE STEP S Ripple (R946 and R952) 1 . [. . . ] E ff Dscont Qty 1 1 1 2 1 1 2 1 1 2 1 1 2 1 6 2 1 1 1 1 1 2 2 2 1 1 1 1 1 1 1 2 4 1 2 2 6 2 2 2 1 1 2 25 10 1 1 1 12345 N ame & Desc ription Mfr Code 80009 80009 80009 01536 80009 01536 80009 80009 80009 93907 80009 80009 01536 80009 80009 80009 80009 80009 71279 80009 80009 80009 80009 80009 80009 73743 78471 80009 80009 80009 80009 01536 01536 80009 80009 80009 80009 01536 Mfr Part N um ber 650-0221-00 334-5001-00 200-2538-00 OBD 390-0790-06 OBD 348-0659-01 334-4172-00 367-0289-00 225-38131-012 334-5002-00 426-1765-00 MECHANI C AL KIT : MARKER, IDENT :MKD CAUTI ON COVER , REAR :PLA STI C (ATTACHING PART S) SCREW , MACH INE :6-32 0 . 625, CABINET , SCOPE :W/ (ATTACHING PART S) SC RE W, TAPPING :6-32 0 . 437 C FOOT , CABINET :BLACK P OLYU RETHANE MA RKER, IDENT : HANDLE , CARRYING :13 . 855, SST (ATTAC HING PART S) SCREW , TPG, TF :8-16 0 . 562 L PLATE, IDENT :MK D TEKTRONIX FRAME, CRT : (ATTACHING PARTS) SCRE W , MACHINE :6-32 0 . 875, P NH , STL O BD 337-2775-00 366-1833-00 210-0255-00 384-1575-00 358-0550-00 450-4252-01-0310 366-1031-03 366-1838-01 358-0640-00 366-1405-09 366-1852-01 366-2020-01 -17 -18 -19 -20 -21 -22 -23 -24 -25 -26 _27 -28 -29 -30 -31 -32 -33 -34 -35 -36 -37 -38 -39 -40 -41 -42 -43 -44 -45 -46 S HLD, IMPLOS ION : KNOB:GRAY, 0. 25 ID 0 . 392 0 . 3920D CONN, RCPT, ELE C :(SEE J1001, J2001 REPL) CONN, RCPT, ELE C :(SEE J4001 REPL) TERMINAL, LUG :0 . 391 ID, LOCKING, BR S CD PL EXTEN SION , SHAFT :FOCUS W /KNOB, PLASTI C BUSHING, SHAFT:0 . 15 ID 0 . 31NCH OD, PL STC JACK, TIP :BLAC K KN OB :RED --C AL KN OB :GY, 0 . 249 ID 0 . 718 1 . 765 BSHG, MACH THD :0 . 5-32 THD 0 . 39 ID KN OB : RED , CAL , 0 . 127X 0 . 45 OD KN OB :GY, SEC/ DIV , 0 . 25 ID 0 . 79 :0 . 252 ID 0 . 581 OD 0 . 612 RE S, VAR, W W :(SEE R658 REPL) (ATTACHING PARTS) NUT, PLAIN , HEX . :0 . 375-32 0 . 438 IN CH BR S WASHER , FLAT :0 . 375 ID 0 . 50 IN CH OD , S TL PU SH, BUTTON:DIRTY GRAY, 0 . 134 SQ 0 . 480 CUS HION , CRT :P OLYURETHANE SUBPANEL, FRONT : (ATTACHING PART S) SCREW, TAPPING :6-32 0 . 25 C SC RE W, TAPPING :6-32 0 . 437 C IN SERT , KN OB :0 . 125 ID 0 . 663 L, AL SPAC ER , POST :1 . 207 L , W/0 . 5-32 THD . S ETSC REW :6-32 0 . 125, S TL CD PL, HEX SKT EXTEN SION SHAFT :5 . 4 L 0 . 124DI A, PLAS TI C EXTENSION SH AFT :6 . 40 IN CH LONG C KT B OA RD ASSY :ATT EN /SWEEP (S EE 12 REPL) (A TTACHING PARTS) SCREW, MACHINE :4-40 0. 312, O BD O BD 333-2680-00 366-2013-00 348-0660-00 386-4444-00 PANEL, FRONT : OBD OBD 377-0512-00 129-0836-00 384-1503-00 384-1180-00 OBD C KT BOARD ASSY IN CLUDE S : . WASHER, LOCK :INTL, 0 . 375 ID 0 . 50" OD STL 00779 73743 78189 86282-2 3145-402 1220-02-00-0541C REV OCT 1982 10-3 Replacea ble Mechanical Parts-2215 Service Fig . [. . . ]