Page 1 NSTRUCT ON MANUAL SCILL SC PE Tektronix, Inc.
Page 2: Warranty
WARRANTY Type 556...
Page 3 ONTENTS Type 556...
Page 4 Sorial number 2000 and up. Serial number 1999 and below. Fig. 1-1. Type 556 Oscilloscopes. Type 556...
Page 5 Type 556 SECTI N 1 CHARACTERISTICS ntroduction VERT CAL AMPL F ERS A & B SWEEP GENERATORS VAR ABLE T ME DELAY...
Page 6 Characteristics — Type 556 EXTERNAL HOR ZONTAL AMPL F ERS A & B TR GGER NG FEATURES A & B TR GGER NG SENS T V TY...
Page 7 Characteristics — Type 556 AMPL TUDE CAL BRATOR µS. Z AX S NPUTS FRONT-PANEL OUTPUT S GNALS POWER SOURCE REQU REMENTS Peak V 1 Crest Factor ~ — between 1.30 and 1.414.
Page 8 Characteristics — Type 556 CRT AND D SPLAY ELECTROMAGNET C NTERFERENCE MECHAN CAL CHARACTER ST CS 2 Crest Factor = ------------- — between 1.30 and 1.414. ENV RONMENTAL CHARACTER ST CS ACCESSOR ES...
Page 9 Type 556 SECTI N 2 PERATING INSTRUCTI NS General SN 2000-up Nomenclature and Terminology Alternate Mode — TABLE 2-1 Chopped Mode — Chopping Rate — Chopping Transient Blanking — Dual-Beam Oscilloscope — Dual-Trace — Multi-Trace — Signal Channel — Power Requirements...
Page 10: Temperature Considerations
Operating nstructions — Type 556 SN 100-1999 NOTE Temperature considerations CAUT ON CONTROLS AND CONNECTORS A AND B TR GGER NG CONTROLS Fig. 2-1. Line Voltage Selector assembly; provided in instruments with serial number 2000 and up.
Page 11 Operating nstructions — Type 556 Fig. 2-2. Positions of the movable jumper wires (black on yellow! for the four nominal lino voltage selections. This illustration is applicable to 556 SN's 100 to 1999.
Page 12 Operating nstructions — Type 556 Upper Beam D SPLAY Upper Beam. COUPL NG SLOPE POS T ON MODE D SPLAY A Sweep LEVEL A T ME/CM DELAY T ME VAR ABLE TR GGER NPUT...
Page 13 Operating nstructions — Type 556 RESET POS T ON and D S PLAY MAG A MODE Upper Beam and Lower Beam (for both beams where applicable) NTENS TY B Sweep B T ME/CM FOCUS VAR ABLE RESET CONTRAST B MODE...
Page 14 Operating nstructions — Type 556 SCALE LLUM LOWER BEAM EXT HOR Z A SAWTOOTH DELAY-T ME MULT PL ER B SAWTOOTH BEAM F NDER LOWER BEAM EXT HOR Z Rear Panel (Upper and Lower Beam) AMPL TUDE EXT CRT CAL BRATOR...
Page 15 Operating nstructions — Type 556 µS µS TABLE 2-2 VERT CAL PLUG- N UN TS F RST T ME OPERAT ON µS 6 µS...
Page 16: Beam Finder
Operating nstructions — Type 556 A and B Triggering GENERAL OPERAT NG NFORMAT ON Light Filters A and B Sweep Upper and Lower Beam Rear Panel Vertical Plug- n Units Front Panel Adjustments Calibrated Graticule Beam Finder overscans...
Page 17 Operating nstructions — Type 556 B. Center portion of rear panel. Fig. 2-3. Control setup chart for Type 556 5N 2000 and up.
Page 18 Operating nstructions — Type 556 A. Front Panel B. Center portion of rear panel. Fig. 2-4. Type 556 control setup chart for instruments with serial number 1999 and below. 2-10...
Page 19 Operating nstructions — Type 556 Output Signals Control Setup Chart CONNECT NG TO THE S GNAL SOURCE Vertical Controls 2-11...
Page 20: Use Of Probes
Operating nstructions — Type 556 Output of device is applied to vertical plug-in unit Fig. 2-6. Using the A GATE or A SAWTOOTH waveform to trigger or drive an external device. Sweep is usually free running. Use of Coaxial Cables...
Page 21: Trigger Coupling
Operating nstructions — Type 556 — ncorrect Correct rrect Fig. 2-7. Probe compensation waveforms. LEFT NT NORM; Trigger Coupling R GHT NT NORM; LEFT NT PLUG N; R GHT NT PLUG N, L NE. AC LF REJ. EXT. AC HF REJ.
Page 22 Operating nstructions — Type 556 Fig. 2-8. Effects of Triggering LEVEL control and SLOPE switch. 2-14...
Page 23 Operating nstructions — Type 556 Free Run Trigger Slope Trigger Mode AUTO STAB L TY. TR G. Trigger Level Selecting Sweep Rate 2-15...
Page 24 Operating nstructions — Type 556 Fig. 2-9. Area of graticule used for obtaining accurate time measure ments. Fig. 2-10. Operation of display magnifier. Using the Position Controls Display Magnification 2-76...
Page 25: Single Sweep
Operating nstructions — Type 556 Single Sweep Delayed B Sweep Lower Beam B sweep display Fig. 2-11. DLY'D BY A mode of operation. The intensified portion of the Upper Beam is expanded and displayed by the Lower Beam. A T ME/CM, .5 mSEC; B T ME/CM, 50 µSEC.
Page 26: Delayed Trigger
Operating nstructions — Type 556 Modo 2: Fig. 2-12. (Al DELAY-T ME MULT PL ER dial. Reading thown 3.55. B! Delay time it calculated by multiplying the A T ME/CM tweep rate by the DELAY-T ME MULT PL ER dial reading.
Page 27: External Horizontal Deflection
Operating nstructions — Type 556 External Horizontal Deflection A Triggering B Triggering µs ntensity Modulation 2-19...
Page 28 Operating nstructions — Type 556 Fig. 2-13. Comparison of the two delayed-sweep modes. n each case the Upper Beam presentation represents the input to both vertical systems. The intensified portion of the Upper Beam display shows the part of the input wavefrom that is displayed by the Lower Beam.
Page 29 Operating nstructions — Type 556 BAS C APPL CAT ONS Operation Multi-Trace Using nterconnected Vertical Deflection Systems Peak-to Peak Measurements — AC Operating Hints (When Upper Beam D SPLAY switch is set to R GHT PLUG- N A) 2-21...
Page 30 Operating nstructions — Type 556 Fig. 2-14. Measuring peak-to-peak voltage of a waveform. nstantaneous Voltage Measurements — DC Fig. 2-15. Measuring nstantaneous DC voltage with respect to a reference. 2-22...
Page 31 Operating nstructions — Type 556 Voltage Comparison Measurements Time Measurements 2-23...
Page 32 Operating nstructions — Type 556 Fig. 2-16. Measuring time duration between two points on a wave form. Distance Fig. 2-17. Measuring the time difference between two pulses using a dual-trace unit and a single beam. 2-24...
Page 33: Delayed Sweep Time Measurements
Operating nstructions — Type 556 Fig. 2-18. Measuring the time difference between two pulses using single-channel units, both beams and the same time base. Delayed Sweep Time Measurements 2-25...
Page 34: Delayed Sweep Magnification
Operating nstructions — Type 556 x ±0.0 7 for 3 fastest A T ME/CM readings Delayed Sweep Magnification Fig. 2-19. Measuring time difference using delayed sweep. 2-26...
Page 35: Frequency Measurements
Operating nstructions — Type 556 Displaying Complex Signals Using Delayed Sweep Fig. 2-20. Using delayed sweep for sweep magnification. Fig. 2-21. Displaying a complex signal using delayed sweep. Frequency Measurements Risetime Measurements 2-27...
Page 36: Delayed Trigger Generator
Operating nstructions — Type 556 Fig. 2-22. Determining the frequency of a periodically recurrent waveform when the T ME/CM switch is set to .2 mSEC. TABLE 2-3 Fig. 2-23. Measuring risetime. Delayed Trigger Generator 2-28...
Page 37: Normal Trigger Generator
Operating nstructions — Type 556 A Sweep Triggered nternally. A Sweep Triggered Externally. NOTE Normal Trigger Generator Multi-Trace Phase Difference Measurements More Precise Phase Measurements. 2-29...
Page 38 Operating nstructions — Type 556 •-< -------------------------- 9 cm (360° ------------------------------- «4 Fig. 2*25. Using a sweep magnification to measure the phase Fig. 2-24. Measuring phase difference. difference. 2-30...
Page 39 Type 556 SECTI N 3 CIRCUIT DESCRIPTI N ntroduction FUNCT ONAL BLOCK D AGRAMS D SPLAY LOG C First Basic Mode (Fig. 3-1) normal internal TABLE 3-1...
Page 41 Circuit Description — Type 556 Third Basic Mode (Fig. 3-3) Fourth Basic Mode (Fig. 3-4) Second Basic Mode (Fig. 3-2) Fifth Basic Mode (Fig. 3-5)
Page 43 Circuit Description — Type 556 Fig. 3-3. The Type 556 operating as two interconnected vertical deflection systems and two completely independent horizontal deflec tion systems. Upper Beam Horizontal Amplifier is driven externally to obtain an X-Y display and the Lower Beam is driven by the B Sweep.
Page 46 Circuit Description — Type 556 from the right LEFT VERT CAL AMPL F ER <Ÿ> nput Cathode Follower, V3 Sixth Basic Mode (Fig. 3-6) C RCU T ANALYS S...
Page 48 Circuit Description — Type 556 Fig. 3-7. Partial block diagram of Left Vertical Amplifier. Trigger Pickoff Emitter Follower, Q73 and Q 1 73 Signal nput Emitter Follower, Q3 and Q 03 Left Trigger Current Regulator, Q83 and Q84 Trigger Pickoff Amplifier, Q74 and Q 74...
Page 49 Circuit Description — Type 556 Right Plug- n Crossover E. F., Q23 and Q 23 Delay Line Driver Amplifier, Q 1 4 and Q1 14 Right Plug- n Crossover Amplifier, Q34 and Q 1 34 Diode Switching Circuit Left Vertical Delay Line...
Page 50 Circuit Description — Type 556 Fig. 3-8. Partial block-and-circuit diagram of Left and Right Vertical Amplifiers. The diodes are located in the Diode Switching circuit of the Left Vertical Amplifier. 3-12...
Page 51 Circuit Description — Type 556 Fig. 3-9. Partial block diagram of Left and Right Vertical Output Amplifiers. Left Amplifier Current Regulator, Q93 and Q94 +67.5 Output E. F., Q43 and Q 1 43 3-13...
Page 52 Circuit Description — Type 556 Fig. 3-10. Block diagram of the A Sweep Trigger. Output Amplifier Q54, Q 54, V64 and V 64 < 2 > R GHT VERT CAL AMPL F ER 3-14...
Page 53 Circuit Description — Type 556 A SWEEP TR GGER<3^> Trigger Source Trigger Comparator V534 Trigger Coupling Trigger Output Amplifier, Q544 and Q554 Tunnel Diode Trigger Regenerator D555 Trigger Level Trigger Slope Fig. 3-11. Tunnel diode characteristics. 3-15...
Page 54 Circuit Description — Type 556 B SWEEP TR GGER <6> A SWEEP GENERATOR <£> A SWEEP T M NG SW TCH <V> General A Gate Tunnel Diode D565 3-16...
Page 55 Circuit Description — Type 556 serial number 2000 and up. Fig. 3-12. Block diagram of the A Sweep Generator circuit. 3-17...
Page 56 Circuit Description — Type 556 Fig. 3-13. llustration showing time relationship of waveforms in the A Sweep Generator circuit starting at the quiescent voltage levels. A Gate Emitter Follower and Amplifier Q563 A Gate Amplifier Q564 3-18...
Page 57 Circuit Description — Type 556 A-Sweep Gate Waveform at Q563 and Q573 Emitters Normal A-Sweep Unblanking Pulse at V574A Plate A-lntensified- By-B A-Sweep Unblanking Pulse at V574A Plate Fig. 3-14. Time-related waveforms showing how the CONTRAST control varies the non-intensified DC level of the A Sweep unblanking pulse.
Page 58 Circuit Description — Type 556 First A Sawtooth Cathode Follower V673A \673f\ V673K \673K, Clamp Emitter Follower Q643 and Clamp Diode D677 Second A Sawtooth Cathode Follower V673B \673/\ Holdoff Multivibrator V625 1. Quiescent State — 3-20...
Page 59 Circuit Description — Type 556 2. D565 Triggered — 5. B Sweep Delayed-By-A Mode of Operation — 3. Single-Sweep Operation — 4. Right Plug- n Multi-Trace Unit Set For Alternate- Mode of Operation — 3-21...
Page 60 Circuit Description — Type 556 6. B Single-Sweep Mode of Operation — Mode 2 (Triggered). Reset Lamp Driver Q619 and Reset Lamp B619 A Auto Multivibrator, Q605 and Q615 Mode 1 (Non-triggered). 3-22...
Page 61 Circuit Description — Type 556 Upper Beam Unblanking Amplifier V574A Q794. A Sweep Unblanking Cathode Follower V583B 3-23...
Page 62 Circuit Description — Type 556 A 4-Gate Cathode Follower V583A DELAY P CKOFF <9> B SWEEP GENERATOR <7> B SWEEP T M NG SW TCH < 8> 3-24...
Page 63 Circuit Description — Type 556 Sawtooth From A Sawtooth C. F. V673A < 4 > Fig. 3-15. Block diagram of Delay Pickoff circuit. Constant Current Transistor Q908, Delay Pick off Comparator V904 and Delayed Trigger Pulse Generator D905 Delay Trigger Multivibrator Q924 and Q933...
Page 64 Circuit Description — Type 556 Fig. 3-16. Block diagram of Alternate Trace Logic and Blanking circuits for Type 556 instruments with serial number 2000 and up. 3-26...
Page 65 Circuit Description — Type 556 Fig. 3-17. Block diagram of Alternate Trace Logic and Blanking circuit for Type 556 instruments with serial numbers 100 to 1999. 3-27...
Page 66 Circuit Description — Type 556 ALTERNATE TRACE LOG C & BLANK NG ntroduction 1. B Gate nverter Q 1 004. Alternate Trace Multivibrator, Q 1 015 and Q 1 025. Alternate Trace Logic Multivibrator, Q1015 and Q 1 025 3. Alternate Trace Sync Pulse Emitter Follower Q 033.
Page 67 Circuit Description — Type 556 Left Alternate Trace Sync Pulse Amplifier V1043A Lower Beam Chopped Blanking Amplifier V1063B Alternate Trace Sync Pulse Emitter Follower Q 1 033 Right Alternate Trace Sync Amplifier V1063A Upper Beam Chopped Blanking Amplifier V1043B 3-29...
Page 68 Circuit Description — Type 556 Fig. 3-18. Time-related waveforms showing how the A Sweep is locked out until the B Sweep ends. Note that only one alternate-trace sync pulse per slower sweep is generated for switching the channels in the right plug-in unit.
Page 69 Circuit Description — Type 556 UPPER BEAM HOR ZONTAL AMPL F ER <fl> Fig. 3-19. Block diagram of the Upper Beam Horizontal Amplifier circuit. 3-31...
Page 70 Circuit Description — Type 556 nput Amplifier Q1135 Output Amplifier V1174A and V1184A nput Emitter Follower Q1 145 Output Cathode Followers, V1174B and V1184B Paraphase Amplifier, Q1 154 and Q1 164 Capacitance Driver, V1 194 3-32...
Page 71 High-Voltage Oscillator V 1 300, Error Amplifier (V774B and V774C), and CRT Control-Grid Rectifier D 1 332 LOWER BEAM HOR ZONTAL AMPL F ER <12> CRT C RCU T <13> High Voltage Delay Q 1 334 1 Added in Type 556 $N 2000 and up. 3-33...
Page 72 Circuit Description — Type 556 Fig. 3-20. Partial block diagram of CRT circuit showing the LowerBeam section and those adjustments that are common to both beams. 3-34...
Page 73 Circuit Description — Type 556 Post-Acceleration Supply Lower Beam CRT Controls CRT Control-Grid and Unblanking Circuit Upper Beam CRT Circuit CRT Circuit Controls and Connectors 3-35...
Page 74 Circuit Description — Type 556 POWER SUPPLY <14; HEATER W R NG General DC VOLTAGE SUPPL ES SN 2000-up — 150 Volts Supply Power Transformer 3-36...
Page 75 Circuit Description — Type 556 Fig. 3-21. Block diagram of Power Supply circuit and partial circuit of Heater Wiring for the Type 556 SN 2000 and up. 3-37...
Page 76 Circuit Description — Type 556 Fig. 3-22. Block diagram of Power Supply circuit and partial circuit of Heater Wiring for the Type 556 SN 100 to 1999. 3-38...
Page 77 Circuit Description — Type 556 + 225 Volt Supply 4-350 Volt Supply Volt Supply 3-39...
Page 78 Circuit Description — Type 556 Calibrator Multivibrator, V 1 605 A and V1605B CAL BRATOR <17> Calibrator Output Cathode Follower V1605C -<■ Fig. 3-23. Block diogram of the Calibrator circuit. 3-40...
Page 79 Circuit Description — Type 556 Output Divider Resistors 3-41...
Page 80 NOTES...
Page 81 Type 556 SECTI N 4 MAINTENANCE ntroduction nterior Cleaning PREVENT VE MA NTENANCE General Air Filter Exterior Cleaning Visual nspection Removal of Panels Transistor and Tube Checks...
Page 82: Soldering Techniques
Maintenance — Type 556 Soldering Techniques Lubrication CORRECT VE MA NTENANCE General Obtaining Replacement Parts Standard Parts. Fig. 4-1. Soldering aid for use with bare wires. Special Parts. Ordering Parts. Circuit Boards.
Page 83 Maintenance — Type 556 Ceramic Strip Replacement Ceramic Terminal Strips. Metal Terminals. Fig. 4-2. The assembled ceramic strip.
Page 84: Component Replacement
Removal (See Fig. 4-5) Component Replacement Transistor and Tube Replacement. Fuse Replacement. TABLE 4-1 Rotary Switch Replacement. Circuit Board Assembly Replacement Replacement Cathode-Ray Tube Replacement *Added in Type 556 S/N 218 and up. Some instruments were mod ified out of sequence.
Page 85 Maintenance — Type 556 Fig. 4-3. Powor Supply fui® locations, bottom view. Fig. 4-4. Location of lino fuses.
Page 86: Power Transformer Replacement
Maintenance — Type 556 Fan Assembly Fastening Screw Fan Assembly Fastening Screw Fan Assembly Fan Assembly Fastoning Scrow Fig. 4-5 nstrument rear vlow, CRT replacement (filter housing removod). Power Transformer Replacement...
Page 87: Troubleshoot Ng
Maintenance — Type 556 Fig. 4-6. Powor transformer replacomont (photo taken with hinged Fig 4-8. CRT filam e nt load locations (Upper Boam). powor chassis swung opon). TROUBLESHOOT NG ntroduction Fig. 4-7. CRT filament lead locations (Lower Beam). Troubleshooting Aids...
Page 88 Maintenance — Type 556 Component Numbering. Switch Wafer dentification. TABLE 4-2 Circuit Boards. Wiring Color Code. Composition Resistors: Metal-Film Resistors: Ceramic Capacitors: o® a " d © — 1 st, 2nd and 3rd significant figures; ♦For capacitance of 10 pF or less.
Page 89: Troubleshooting Techniques
Maintenance — Type 556 TABLE 4-3 TABLE 4-4 ‘ Exception: Color code partially conforms to E A standard. Resistor Color Code. 'Measured between +100 and +225 V. 3. Check nstrument Calibration. Troubleshooting Techniques solate trouble to a particular circuit. 1. Check Associated Equipment.
Page 90 Maintenance — Type 556 TABLE 4-5 4-10...
Page 91 Maintenance — Type 556 avefor m in this area 5. Check Circuit Board connections. Upper Beam 6. Visual Check. 7. Check Voltages and Waveforms. Wc vefor m in this c irea Lower Beam gle ce nter 1 Test Oscilloscope Fig. 4-10. Waveform source identification.
Page 92 Maintenance — Type 556 Resistors. nductors. Capacitors. Diodes. NOTES 4-12...
Page 93 NOTES...
Page 94: Performance Check Procedure
Type 556 SECTI N 5 PERF RMANCE CHECK ntroduction Recommended Equipment PERFORMANCE CHECK PROCEDURE General...
Page 95 Performance Check — Type 556 Check Amplitude Calibrator Operation...
Page 96 Performance Check — Type 556 TABLE 5-1 of the Fig. 5-1. Amplitude Calibrator accuracy check.
Page 97 Performance Check — Type 556 5. Check Geometry Fig. 5-2. Typical display, amplitude calibrator risetime. ndicated risetime is 0.8 microseconds. 2. Check 5 mA Current Loop 3. Check Trace Rotation 6. Check Focus and Astigmatism Control Operation 4. Check Beam Finder Operation...
Page 98 Performance Check — Type 556 8. Check CRT Orthogonality (A) Poor Geometry 9. Check Vertical Amplifier DC Balance — Right and Left (B) Good Geometry Fig. 5-3. Typical CRT displays showing (A) poor geometry adjust ment; (Bl good geometry adjustment.
Page 99 Performance Check — Type 556 11. Check Vertical Amplifier Gain 12. Check Vertical Amplifier Compression/Ex- pansion — Left, Right, and Crossover...
Page 100 Performance Check — Type 556 13. Check Common Mode Rejection NOTE 14. Check Trace Drift with Line Voltage Change...
Page 101 Performance Check — Type 556 Peak voltage Ref erence / waveforms ' * 1 — Fig. 5-5. llustrating method of peak line voltage measurement; Type W plug-in vertical deflection factor 1 V/cm; sweep rate 5 milliseconds/cm. Fig. 5-4. llustrating measurement of voltage drop in neutral wire.
Page 102 Performance Check — Type 556 16. Check Multi-Trace Chopping Transient Blanking 17. Check External Trigger Sensitivity...
Page 103 Performance Check — Type 556 18. Check Triggering Level Control Ranges 19. Check nternal Triggering — Lower Beam of the 5-10...
Page 104 Performance Check — Type 556 20. Check nternal Triggering — Upper Beam 5-11...
Page 105 Performance Check — Type 556 23. Check Line Trigger and LF Reject Operation 21. Check Crossover Triggering 22. Check Auto Stability Operation 24. Check A and B Single Sweep Operation 5-12...
Page 106 Performance Check — Type 556 25. Check Basic Timing-A Sweep 26. Check Upper Beam Sweep Magnifier Registration 27. Check A Sweep Length 28. Check B Sweep Sawtooth Slope 29. Check B Sweep Length 5-13...
Page 107 Performance Check — Type 556 30. Check Basic Timing — B Sweep 31. Check Lower Beam Sweep Magnifier Registration 32. Check Delay-Time Multiplier Dial Setting 33. Check Delay Start and Stop 5-14...
Page 108: Check Delay-Time Jitter
Performance Check — Type 556 34. Check Delay-Time Multiplier ncremental Linearity 35. Check Delay-Time Jitter 0-cm 4-cm 36. Check Horizontal Amplifier 50 MHz Com pensation — Upper Beam Fig. 5-6. Typical display, high-speed sweep timing, showing peak of a sine wave at the 4-cm graticule line, see step 36 (k).
Page 109 Performance Check — Type 556 37. Check Timing and Delaying Sweep Accu O-cm 1 -cm racy — A Sweep Fig. 5-7. Typical display showing 4th cm sine wave of Fig. 5-6 repositioned to the 1-cm graticule line, as in step 36 ( ).
Page 110 Performance Check — Type 556 39. Check Horizontal Amplifier 50 MHz Com pensation — Lower Beam 38. Check B Sweep Crossover Compensation 5-17...
Page 111 Performance Check — Type 556 41. Check Variable Time/cm Range 40. Check Timing Accuracy — B Sweep 42. Check Trigger Delay TABLE 5-3 5-18...
Page 112 Performance Check — Type 556 43. Check External Horizontal Amplifier DC 44. Check External Horizontal Amplifier Vari Balance — Upper Beam able Control Range — Upper Beam 45. Check External Horizontal Amplifier XlO Compensation — Upper Beam nt cor ner .
Page 113 Performance Check — Type 556 47. Check Magnifier X 1 - X 10 Ratio Accu 50. Check External Horizontal Amplifier X 1 racy — Upper Beam and X10 Compensation — Lower Beam 51. Check Magnifier X1-X10 Ratio Accuracy 48. Check External Horizontal Amplifier DC Balance —...
Page 114 Performance Check — Type 556 t r T r — — — — — ■ — 54. Check B Sweep Sawtooth Amplitude Fig. 5-11. Typical display, intensity modulation (Z Axis Operation). 53. Check A Sweep Sawtooth Amplitude 55. Check A Sweep Gate Amplitude 56.
Page 115 Performance Check — Type 556 58. Check Vertical Amplifier Transient Response 59. Check Vertical Amplifier Risetime-Crossover 5-22...
Page 116 Performance Check — Type 556 (A) Upper Beam Fig. 5-14. Correct positioning of Lower Beam waveform for risetime check. (B) Lower Beam Fig. 5-12. Typical displays, high frequency compensations correctly adjusted. 60. Check Vertical Amplifier Risetime — Left 61. Check Vertical Amplifier Risetime — Right Fig.
Page 117 Performance Check — Type 556 5-24...
Page 118 Type 556 SECTI N 6 CALIBRATI N ntroduction RECOMMENDED EQU PMENT (see Figs. 6-1 through 6-3) General General nformation Special Test Equipment certain...
Page 119 Calibration — Type 556 Fig. 6-1. Recommonded calibration equipment. tem» 1 through 12.
Page 120 Calibration — Type 556 Fig. 6-2. Recommended calibration equipment. tems 13 through 23.
Page 121 Calibration — Type 556 Fig. 6-3. Adjustment tools. ’ tems 18 and 19 are needed if a generator does not have an out put amplitude control.
Page 122 Calibration — Type 556 CAL BRAT ON RECORD AND NDEX...
Page 123 Calibration — Type 556...
Page 124 Calibration — Type 556 CAL BRAT ON PROCEDURE General >7V. Preliminary Procedure...
Page 125 Calibration — Type 556 Fig. 6-4. nitial te*t tolup for power »upply voltage adjuitment. Typo 556...
Page 126 Calibration — Type 556 1. Adjust Power Supply Voltages 6-4. 6-4), NOTES...
Page 127 Calibration — Type 556 Tett Oscilloscope Fig. 6-5. nitial tost sotup for chocking powor supply rlpplo and regulation. 2. Check Power Supply Ripple and Regulation — Low Load at High Line Voltage 6-10...
Page 128 Calibration — Type 556 Fig. 6-6. llustrating measurement of voltage drop in neutral wire. Fig. 6-7. llustrating method of peak line voltage measurement; Probe connected between grounding pin and neutral wire; Type W Type W plug-in vertical deflection factor 1 V/cm; sweep rate 5 Time/cm, 5 milliseconds;...
Page 129 Calibration — Type 556 Adjust High Voltage — Lower Beam Fig. 6-8. Typical test oscilloscope display of power supply ripple, — 150 volt supply (60 cycle line). Vertical deflection, 0.005 volts/cm; sweep rate, 5 milliseconds/cm; low load condition. Fig. 6-9. Typical...
Page 130 Calibration — Type 556 Fig. 6-11. Tost setup for adjusting high voltage — Upper Boom. Fig. 6-10. T«»» »«tup for adjusting high voltago — Lowor Beam. NOTES 6-13...
Page 131 Calibration — Type 556 Fig. 6-12. To*» totup for Amplitude Calibrator adjustment. Adjust Amplitude Calibrator Fig. 6-13. Method of adjusting Amplitude Calibrator. 6-14...
Page 132 Calibration — Type 556 TABLE 6-2 Check Amplitude Calibrator Repetition Rate 9. Check Amplitude Calibrator Duty Cycle 10. Check Amplitude Calibrator Risetime Fig. 6-14. Typical display. Amplitude Calibrator adjustment. 7. Check Terminated Voltage Accuracy 6-15...
Page 133 Calibration — Type 556 Fig. 6-16. Location of fraco rotation coll test points. 12. Check Horizontal Deflection/Graticule Alignment NOTE 11. Check 5 mA Current Loop 6-16...
Page 134 Calibration — Type 556 13. Check Beam Finder Switch Operation NOTES 6-17...
Page 135 Calibration — Type 556 Fl(j. 6-17. Tott *o»up for Goomotry ad|u»lmont. 14. Adjust Geometry 6-18...
Page 136 Calibration — Type 556 Fig. 6-18. Typical CRT displays showing <A> poor geometry adjust ment; B) good geometry adjustment. Fig. 6-19. Location of Edge and Center geometry adjustments. 16. Check Upper and Lower Beam Scan Areas 15. Adjust FOCUS and AST GMAT SM...
Page 137 Calibration — Type 556 Fig, 6-20, Vortical amplifier DC balance and gain adjustmonts ( left side view). 17. Check CRT Orthogonality 18. Adjust Vertical Amplifier DC Balance — Left Fig. 6-21. Vertical amplifier DC balance and gain adjustments (right side view) .
Page 138 Calibration — Type 556 19. Adjust Vertical Amplifier DC Balance — Right 20. Check Trace Separation Range NOTES...
Page 139 Calibration — Type 556 Fig. 6-22. Equipment lotup for vortical amplifier gain adjustments. 21. Adjust Vertical Amplifier Gain 6-22...
Page 140 Calibration — Type 556 for a 22. Check Vertical Amplifier Compression/Ex- pansion — Left, Right and Crossover 23. Check Common Mode Rejection 6-23...
Page 141 Calibration — Type 556 Fig. 6-23. nltal tost sotup for chocking traco drift with lino voltago change. 24. Check Trace Drift with Line Voltage Change 6-24...
Page 142 Calibration — Type 556 Fig. 6-25. llustrating method of peak line voltage measurement; Type W plug-in vertical deflection factor 1 V/cm; sweep rate 5 milliseconds /cm. Fig. 6-24. llustrating measurement of voltage drop in neutral wire. Probe connected between grounding pin and neutral wire; Type W Time/cm, 5 milliseconds;...
Page 143 Calibration — Type 556 25. Check Alternate Trace Operation 26. Check Multi-Trace Chopping Transient Blanking SN 2000-up only SN 2000-up only 6-26...
Page 144 Calibration — Type 556 Fig. 6-26. Equipment setup for external triggering ad|ustmonls. 27. Adjust External Triggering — A and B Sweeps 6-27...
Page 145 Calibration — Type 556 Fig. 6-27. llustrating method of connecting jumper wire o adjust triggoring. Fig, 6-28. External triggering adjustment locations, B sweep. 28. Check B Triggering LEVEL Control Ranges 6-28...
Page 146 Calibration — Type 556 A TR GGER SENS T V TY A TR GGER LEVEL R556 CENTER NG R545 Fig. 6-30. Extornal triggoring adjustment locations, A sweep. ncorrect Adjustment 29. Check A Triggering LEVEL Control Ranges (Cl Correct Adjustment Fig. 6-29. Trigger adjustment waveforms.
Page 147 Calibration — Type 556 Fig. 6-31. To»t »otup for chocklnfl nternai rlggor. 30. Check nternal Triggering — Lower Beam 6-30...
Page 148 Calibration — Type 556 31. Check nternal Triggering — Upper Beam 32. Check Crossover Triggering 6-31...
Page 149 Calibration — Type 556 33. Check Auto Stability Operation 35. Check A and B Single Sweep Operation 34. Check Line Trigger and LF Reject Operation NOTES 6-32...
Page 150 Calibration — Type 556 Fig. 6-32. Equipmont totup for basic timing procodurot — A and B twoop*. 36. Adjust Basic Timing — A Sweep 6-33...
Page 151 Calibration — Type 556 38. Adjust A Sweep Sawtooth Amplitude Fig, 6-33. Adjustmont location for A sweep basic timing and saw tooth amplitude. NOTE Fig. 6-34. Ad|ustmont location for Uppor Boom swoop magnlflor registration. 39. Adjust B Sweep Sawtooth Slope <>...
Page 152 Calibration — Type 556 Fig. 6-36. Adjustment location for basic timing and B sweep ampli Fig. 6-35. Adjustment location for B swoop sawtooth slope. tude. 40. Adjust B Sweep Sawtooth Amplitude 41. Adjust Basic Timing — B Sweep 42. Adjust Lower Beam Sweep Magnifier Registration Fig.
Page 153 Calibration — Type 556 Fig. 6-38, Equipment setup for A and B sawtooth current adjust. 43. Adjust Lower Beam A Sweep Gain (SN2000-up only) 44. Adjust A and B Sawtooth Currents 6-36...
Page 154 Calibration — Type 556 B) B sawtooth current adjustment and test ooinl location (right A) A sawtooth curront adjustment and tost point location tieft side) side) Fig, 6-39. A and B sawtooth curront adjustment and test point locations. 45. Check Delay-Time Multiplier Dial Setting...
Page 155 Calibration — Type 556/R556 Fig. 6-40. Totf tolup for ad|uiting Dolay Start and Stop. 46. Adjust Delay Start and Stop 6-38...
Page 156 Calibration — Type 556 Fig. 6-41. Dolay Start and Stop Adjust locations. NOTE Fig. 6-42. Typical dliplayt, Dolay Start and Stop adjutlmontt. 48. Check Delay-Time Jitter 47. Check Delay-Time Multiplier ncremental Linearity 6-39...
Page 157 Calibration — Type 556 Fig. 6-43, T®*t »otup for Swoop Timing — A and B. 49. Adjust Timing — A Sweep 6-40...
Page 158 Calibration — Type 556/R556 Fig. 6-45. Ad|u*tment location* for A sweep timing, top view of Type 556. Fig. 6-44. Method of ad|u»Hng timing a* doicrlbod in step 49 (o). 6-41...
Page 159 Calibration — Type 556 Fig. 6-46. Typical display obtalnod to illustrato intercept point with dial at 1.00. NOTE Fig. 6-47. High-tpood swoep componiation adjustment, A sweep. 50. Adjust Horizontal Amplifier 50 MHz Compensation — Upper Beam 6-42...
Page 160 Calibration — Type 556 Fig. 6-49. Adjustment locations for B swoop timing, top view of Typo 556. 51. Check Timing and Delaying Sweep Accuracy — A Sweep Fig. 6-48. Typical displays, high-speed sweep timing. Waveform shows top peak of a sine wave at the 4 -cm graticule line,...
Page 161 Calibration — Type 556 TABLE 6-3 J Use CONTRAST control to check display. Previously adjusted. 4 Lower Beam D SPLAY MAG switch is set to X O. (For the remaining B T ME/CM switch positions, the switch is set to Xl<>...
Page 162 Calibration — Type 556 54. Adjust Horizontal Amplifier 50 MHz Compensation-Lower Beam Fig. 6-51. Location of sweep crossover adjustment for serial num bered instruments 2000 and up. Fig. 6-50. High-speed sweep compensation adjustments — B sweep. 6-45...
Page 163 Calibration — Type 556 55. Adjust — A Sweep Crossover Compensa- tion (SN 2000-up only) 57. Check Variable Time/cm Range 56. Check Timing Accuracy — B Sweep TABLE 6-4 58. Check Trigger Delay SN 2000-up only "Previously adjusted. 6-46...
Page 164 Calibration — Type 556 Fig. 6-52. Horizontal Amplifier Adjustment and Compensation. 59. Adjust External Horizontal Amplifer DC Balance — Upper Beam 6-47...
Page 165 Calibration — Type 556 A) Upper Beam (left »ide) C12OOB ’ lower Boom rlght » do) Fig. 6-53. Adjuitmonl location», Extornal Horlxontal Amplifior DC Fig. 6-54, Location» of External Horixontal Amplifier compensation Balance. ad|u»tmenli. 60. Check External Horizontal Amplifier Vari ...
Page 166 Calibration — Type 556 61. Adjust External Horizontal Amplifier X 10 Compensation — Upper Beam 62. Adjust External Horizontal Amplifier X 1 Compensation — Upper Beam 63. Check Magnifier X 1 - X 10 Ratio Accuracy — Upper Beam 64. Adjust External Horizontal Amplifier DC Balance —...
Page 167 Calibration — Type 556 Check Magnifier X 1 - X 10 Ratio Accuracy Lower Beam Fig. 6-56. Typical display, intensity modulation (Z Axis Operation). 68. Check Z Axis Operation — Upper and Lower Beams 65. Check External Horizontal Amplifier Vari ...
Page 168 Calibration — Type 556 Fig. 6-57. Test equipment setup for chocking oxtornal wavoforms. 6-51...
Page 169 Calibration — Type 556 70. Check B Sweep Sawtooth Amplitude 71. Check A Sweep Gate Amplitude 72. Check B Sweep Gate Amplitude 73. Check Delayed Trigger Waveform Amplitude Fig. 6-58. Vortical Amplifier hlgh-froquoncy componiation od|u»t- monl location», loft ildo; loft bottom rail romovod.
Page 170 Calibration — Type 556 Fig. 6-59. Vertical Amplifier hlgh-froquoncy componiation ad|uil- mont location*, right sldo. 75. Adjust Vertical Amplifier High Frequency Compensations — Left 6-53...
Page 171 Calibration — Type 556 TABLE 6-5 Fig. 6-60. L«ft and Right Vertical Amplifier high-frequency compen sation adjustment locations (top view of the instrument). 'For positive-going pulse waveform; near bottom corner when view ing a negative-going pulse waveform. 6-54...
Page 172 Calibration — Type 556 Fig. 6-62. Example of misadjustment of C244, right vertical ampli fier; sweep speed 100 nano$econd$/cm. Fig. 6-61. Typical displays, high-frequency compensations correctly adjusted. 77. Adjust Vertical Amplifier High Frequency Compensations — Right 76. Adjust Vertical Amplifier High Frequency Compensations —...
Page 173 Calibration — Type 556 79. Check Vertical Amplifier Risetime — Cross over 80. Check Vertical Amplifier Risetime — Left Fig. 6-63. llustrating method of risetime measurement. 78. Check Vertical Amplifier Risetime — Right NOTES 6-56...
Page 174 NOTES...
Page 175 PARTS ORDER NG NFORMAT ON SPEC AL NOTES AND SYMBOLS...
Page 176 ABBREV AT ONS AND SYMBOLS A or amp amperes inductance alternating current lambda — wavelength AC or ac » audio frequency large compared with alpha — com mon-base current amplification factor less than < amplitude modulation low frequency length or long approximately equal to beta —...
Page 177 Type 556 SECTI N 7 ELECTRICAL PARTS LIST Bulbs Capacitors...
Page 178 Electrical Parts List — Type 556 Capacitors (conf) µF µF µF µF µF µF µF µF µF µF µF µF µF µF µF µF µF µF µF µF...
Page 179 Electrical Parts List — Type 556 Capacitors (cont) µF...
Page 180 Electrical Parts List — Type 556 Capacitors (conf) C604...
Page 181 Electrical Parts List — Type 556 Capacitors (conf)
Page 182 Electrical Parts List — Type 556 Capacitors (cont)
Page 183 Electrical Parts List — Type 556 Capacitors (cont)
Page 184 Electrical Parts List — Type 556 Capacitors (cont)
Page 185 Electrical Parts List — Type 556 Capacitors (contj µF 750 pF 0.01 µF...
Page 186 Electrical Parts List — Type 556 Capacitors (cont) µF Diodes 7-10...
Page 187 Electrical Parts List — Type 556 Diodes (conf) GaAs D640 D690 D760 7-11...
Page 188 Electrical Parts List — Type 556 Diodes (cont) 7-12...
Page 189 Electrica! Parts List — Type 556 Diodes (cont) Filter Fuses 7-13...
Page 191 Electrical Parts List — Type 556 nductors (cont) Transistors 7-15...
Page 192 Electrical Parts List — Type 556 Transistors 7-16...
Page 193 Electrical Parts List — Type 556 Transistors (conf) Resistors 7-17...
Page 194 Electrical Parts List — Type 556 Resistors (cont) 7-18...
Page 196 Electrical Parts List — Type 556 Resistors (cont) 7-20...
Page 197 Electrical Parts List — Type 556 Resistors (conf) 7-21...
Page 198 Electrical Parts List — Type 556 Resistors (cont) 7-22...
Page 199 Electrical Parts List — Type 556 Resistors (cont) 7-23...
Page 200 Electrical Parts List — Type 556 Resistors (cont) 7-24...
Page 201 Electrical Parts List — Type 556 Resistors 7-25...
Page 202 Electrical Parts List — Type 556 Resistors (cont) 7-26...
Page 203 Electrical Parts List — Type 556 Resistors 7-27...
Page 204 Electrical Parts List — Type 556 Resistors (cont) 7-28...
Page 205 Electrical Parts List — Type 556 Resistors (conf) 7-29...
Page 206 Electrical Parts List — Type 556 Resistors (cont) 7-30...
Page 207 Electrical Parts List — Type 556 Resistors (cont) 7-31...
Page 208 Electrical Parts List — Type 556 Resistors (cont) 7-32...
Page 209 Electrical Parts List — Type 556 [conf] 7-33...
Page 210 Electrical Parts List — Type 556 Resistors (cont) 7-34...
Page 211 Electrical Parts List — Type 556 Resistors 7-35...
Page 212 Electrical Parts List — Type 556 Resistors (conf) 7-36...
Page 213 Electrical Parts List — Type 556 Resistors (cont) 7-37...
Page 214 Electrical Parts List — Type 556 Resistors 7-38...
Page 215 Electrical Parts List — Type 556 Resistors (conf) 7-39...
Page 216 Electrical Parts List — Type 556 Resistors (cont) ½% ½7o ½7o ½% ½% ½7o ½7o ½% ½7o ½% ¼% ¼% Switches 7-40...
Page 217 Electrical Parts List — Type 556 Switches 7-41...
Page 218 Electrical Parts List — Type 556 Thermal Cut-Out T ransformers Electron Tubes 7-42...
Page 219 Electrical Parts List — Type 556 Electron Tubes 7-43...
Page 220 Mechanical Parts List — Type 556 NDEX OF MECHAN CAL PARTS L ST LLUSTRAT ONS (Located behind diagrams)
Page 221 F GURE AND NDEX NUMBERS NDENTAT ON SYSTEM Assembly and/or Component Detail Part of Assembly and/or Component mounting hardware for Detail Part Parts of Detail Part mounting hardware for Parts of Detail Part mounting hardware for Assembly and/or Component PARTS ORDER NG NFORMAT ON ABBREV AT ONS AND SYMBOLS...
Page 222 Type 556 SECTI N 8 MECHANICAL PARTS UST F G. 1 FRONT & SW TCHES...
Page 223 Mechanical Parts List — Type 556 F G. 1 FRONT & SW TCHES ®3...
Page 224 Mechanical Parts List — Type 556 F G. 1 FRONT & SW TCHES (cont)
Page 225 Mechanical Parts List — Type 556 F G. 1 FRONT & SW TCHES (cont) ®i...
Page 226 Mechanical Parts List — Type 556 F G. 1 FRONT & SW TCHES (cont)
Page 227 Mechanical Parts List — Type 556 F G. 1 FRONT & SW TCHES (cont) 6-32 x s/u...
Page 228 Mechanical Parts List — Type 556 F G. 1 FRONT & SW TCHES (conf)
Page 229 Mechanical Parts List — Type 556 F G. 1 FRONT & SW TCHES (conf)
Page 230 Mechanical Parts List — Type 556 F G. 1 FRONT & SW TCHES (cont)
Page 231 Mechanical Parts List — Type 556 F G. 2 A SWEEP, VERT CAL AMPL F ER & H GH VOLTAGE 8-10...
Page 232 Mechanical Parts List — Type 556 AMPL F ER & H GH VOLTAGE (conf) F G. 2 A SWEEP, VERT CAL 8-11...
Page 233 Mechanical Parts List — Type 556 F G. 2 A SWEEP, VERT CAL AMPL F ER & H GH VOLTAGE (cont) 8-12...
Page 234 Mechanical Parts List — Type 556 F G. 2 A SWEEP, VER 1 riCAL AMPL F ER & H GH VOLTAGE 8-13...
Page 235 Mechanical Parts List — Type 556 AMPL F ER & H GH VOLTAGE (cont) A SWEEP, VERT CAL F G. 2 8-14...
Page 236 Mechanical Parts List — Type 556 F G. 2 A SWEEP, VERT CAL AMPL F ER & H GH VOLTAGE 8-15...
Page 237 Mechanical Parts List — Type 556 F G. 2 A SWEEP, VERT CAL AMPL F ER & H GH VOLTAGE (cont) 8-16...
Page 238 Mechanical Parts List — Type 556 B SWEEP VERT CAL AMPL F ER & H GH VOLTAGE F G. 3 8-17...
Page 239 Mechanical Parts List — Type 556 F G. 3 B SWEEP VERT CAL AMPL F ER & H GH VOLTAGE 8-18...
Page 240 Mechanical Parts List — Type 556 F G. 3 B SWEEP VERT CAL AMPL F ER & H GH VOLTAGE (cont) 5 /u 2 9 / ri 8-19...
Page 241 Mechanical Parts List — Type 556 F G. 3 B SWEEP VERT CAL AMPL F ER & H GH VOLTAGE (cont) ®1 8-20...
Page 242 Mechanical Parts List — Type 556 B SWEEP VERT CAL AMPL F ER & H GH VOLTAGE (conf) F G. 3 8-21...
Page 243 Mechanical Parts List — Type 556 B SWEEP VERT CAL AMPL F ER & H GH VOLTAGE (cont) F G. 3 8-22...
Page 244 Mechanical Parts List — Type 556 F G. 3 B SWEEP VERT CAL AMPL F ER & H GH VOLTAGE (cont) 0.406 8-23...
Page 246 Mechanical Parts List — Type 556 F G. 4 CAPAC TOR MOUNT NG CHASS S & TRANSFORMER 8-25 ®î...
Page 247 Mechanical Parts List — Type 556 F G. 4 CAPAC TOR MOUNT NG CHASS S & TRANSFORMER (cont) 8-26...
Page 248 Mechanical Parts List — Type 556 F G. 5 POWER CHASS S & PLUG- N HOUS NG 8-27...
Page 249 Mechanical Parts List — Type 556 F G. 5 POWER CHASS S & PLUG- N HOUS NG (cont) 8-28...
Page 250 Mechanical Parts List — Type 556 F G. 5 POWER CHASS S & PLUG- N HOUS NG {cont} 8-29...
Page 251 Mechanical Parts List — Type 556 F G. 5 POWER CHASS S & PLUG- N HOUS NG (cont) 8-30 ®2...
Page 252 Mechanical Parts List — Type 556 F G. 6 FAN MOTOR & HEAT S NK CHASS S 8-31 @ï...
Page 253 Mechanical Parts List — Type 556 F G. 6 FAN MOTOR & HEAT S NK CHASS S Fig. & 8-32...
Page 254 Mechanical Parts List — Type 556 F G. 6 FAN MOTOR & HEAT S NK CHASS S (conf) 8-33 ®î...
Page 258 Mechanical Parts List — Type 556 F G. 8 CAB NET & RA LS 8-37...
Page 259 V P E OSC LLOSCOPE...
Page 263 FROM Val 2 AT 7 + OOV BALANCt ACTUATED BY NSERT ON OF SOME PLUG- N UN TS Qt/4 72 1 2 AT 7 + OOV SEE PARTS L ST FOR SEM CONDUCTOR TYPES R CHT VERT CAL AMPL F ER * TWO W RE SH ELD A SWEEP TR GGER ** THREE W RE SU E...
Page 264 +225V (CXPL) ** THREE W RE. SU ELDED CABLE...
Page 265 TYPE OSC LLOSCOPE...
Page 267 TYPE OSC LLOSCOPE...
Page 269 +225V S GNAL TO FT VERT AMP THRU T2O /X CZO2 C222 V2O3A fa!2AT7 Q203 R2O9< /\D204 2 5> + 1OOV L22O BALANCE GA N )«** R.402 470K V2O3B Q403 '/2 12 AT 7 J-C4 6 R422 C422. " ” ’ .0022 •"p&.a 88.7: * ACTUATED BY NSERT ON...
Page 270 +225V (DCPL)
Page 271 1_1K1E...
Page 272 VC534fi '/2^ùda ► V534A ¼>6DJ0 Q554...
Page 273 vez5 6DJ<3 NORM...
Page 274 V5Ô3B /26DJÔ V574A ^6MH ’ V673A /2CDJS A ijAl E. FOR. DETA L'S VCCI NORM !2>AUC SU4CLE. SWEL P Q6/9 VC 2 5 6DJ<S V673B '/zCDJâ...
Page 275 V625 6DJG --------- Z-AAA.
Page 276 V5Q33 '/z6DJ<3 VS 74 A '/sSMH V673A 'Z26DJS V5Ô3A '/zéDJâ WORM vez5 6DJâ ---- Wv — V6733 7z6DJ3 -J ----- »- MR 1-4 SWEEP GENERATOR <§>...
Page 279 + IOOY...
Page 280 /z€DJÖ V734Δ '/26DJG e&e...
Page 281 DECOUPL NG B UMBLAMK1 FROM Q86- SW77S RT89A 22OK QG/9 V<325 6DJ3 R8 4 + OOV (DCPL) (DCPL) TYPE OSC LLOSCOPE...
Page 282 A UNBLANK NG TO V574A V7<53B> 7Ï6DJÔ a — J « ---- V774A 'MMH K NTENS | — -AAA R869 47 K VS 73 A V7S3A 7*6 DJB - ---- _ SWEEP ^jL — F^TO SW 185 VS6! /2AU6 V<325 6DJÔ...
Page 283 C.7G1 V<325 £. R...
Page 284 — VW — V7<53£> 726DJ& Q779 * V77^A 7s6Mll V873A '/zSDJG V7<53>A /26DJ& 1 2 AUS 6DJÔ ½3733 /½SDUQ...
Page 286 <3 M>...
Page 289 Q/004 QI025 Q/O/5...
Page 290 V/Q43B •AiéDüQ V/O43A 7zébJÔ QI02S V/O63B teéDJÔ V/O63A /z6DJÔ...
Page 291 Q/OO4- — AW-A ------------ r...
Page 292 V/O43B V26DUQ V/O43A '/zéôJâ VfOG3B ‘ / 2GÛJÔ Q/O33 V/O63A &...
Page 293 QH35 V//O4e> ¼>6D J Q//64 V7/O-M '/zGDJQ...
Page 294 VH74A '/2 6DJÔ QU64 VH&4A 726DJQ VI 1045 /2&DJÔ £2 ôk...
Page 295 -7" /^DJQ Q//64 VI/O4-A ^€DJQ...
Page 296 — AiW- 4- OOV VH74A 726DJÔ CAÔLE 4- OOV VH94 6197 V//Ô4A '/z6DJQ vnô4e>...
Page 297 Q/23S -œ- V/2O4B VJ204A •/zCDJQ...
Page 298 '/26DJÔ V 127 4 A '/2GDJ6...
Page 299 Q/235 Rl257 -- VW — " V/2O4B '/z&JÔ VI2O4A '/26DJ8...
Page 300 V 1274 A 72GDJÔ Q/254 71234 A '/2€DJ3...
Page 301 + ÖOV V/300 6GF5 V/332 V/322 V 1342 5 64-2 5G42 5G42 V/359 75560 V774B '/36MH V774C •/ô6MH...
Page 302 0/33 V/35O 6GF3 V/359 TS3&O V574Ô '/36M// V57^C 7s6MH UPPER BEAM BEAM ■S...
Page 303 1 - (brn on wht) T1351 (Upper Beam) TRANSFORMER DETA LS T1301 (Lower Beam) TRANSFORMER DETA LS...
Page 304 (DCPL *1) V/3OO 6GF5 V/332 V/322 V 1342. 5&+Z 5i42 5£>42 VI3S9 T556C V774B '/36MH + 1OOV VV74C 736MH LOWER BEAM...
Page 305 + OOV V/35O 6GFS V/359 T556O V574Ê» '/36MH V57^C AST GMAT SM | 7i6MH...
Page 307 + S5OV 2l424A < C 426A ro^F ,O ^ F POWER SUPPLY 1067 2000 - UP...
Page 308 TYPE 55 6 OSC LLOSCOPE...
Page 313 e&6...
Page 316 çAo 4 --------- <$> _£^*o —...
Page 318 F G. 1 FRONT & SW T...
Page 319 F G. 1 FRONT & SW TCHES...
Page 320 F G. 2 “ A" SWEEP, VERT CAL AMP...
Page 321 * ” SWEEP, VERT CAL AMPL F ER & H GH VOLTAGE...
Page 322 F G. 3 “ B ” SWEEP, VERT CAL AMPL F ER...
Page 323 VEEP, VERT CAL AMPL F ER & H GH VOLTAGE...
Page 324 F G. 4 CAPAC TOR CHASS S & TF...
Page 325 4 CAPAC TOR CHASS S & TRANSFORMER...
Page 326 F G. 5 PLUG- N HOUS NGS & P...
Page 327 PLUG- N HOUS NGS & POWER CHASS S...
Page 328 F G. 6 FAN MOTOR & HEAT SlH...
Page 329 FAN MOTOR & HEAT S 14K CHASS S...
Page 330 F G. 7 CRT SH ELD & R...
Page 331 F G. 7 CRT SH ELD & REAR...
Page 332 F G. 8 CAB NET & RA LS...
Page 333 F G. 8 CAB NET & RA LS...
Page 334 F G. 9 STANDARD ACCESSOR ES...
Page 335 MANUAL CHANGE NFORMAT ON...
Page 340 Î-113, 252/1167...
Page 341 R.8><o5 C 8 6 1 27O 1 150 ■VA ------- ------ c Jl — o ------- o ------ O C8GOB X <k o — <• • — o...
Page 342 s w e s...
Page 343 LOWER BEAM \ RJ2O1 EXT HOR Z ¥ lOO J 200...
Page 344 K4XL's “ «* BAMA his manual is provided FREE OF CHARGE from the “ BoatAnchor Manual Archive ” as a service to the Boatanchor community. It was uploaded by someone who wanted to help you repair and maintain your equipment. If you paid anyone other than BAMA for this manual, you paid someone who is making a profit from the free labor of others without asking their permission.

Tektronix 556 Instruction Manual

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