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Summary of Contents for RTI 4100
- Page 1 SERVICE MANUAL TapeChek Model 4100 Betacam SP Cassette Cleaner/Evaluator Research Technology, International Version 1.3...
- Page 2 Table of Contents ______________________________________ Section: Page Repair/Return Procedure 3 - 4 General Description and 4100 Specifications 5 - 10 Diagnostic Displays 11 - 14 Mechanical Adjustments 15 - 18 Defect Detector Module 19 - 21 Electronic Adjustments and Repairs 22 - 25...
- Page 3 In many cases the repairs can be done on location by simple replacement of a part or assembly. However, sometimes the repair requires a critical adjustment or the trained eye of our factory technicians. In these cases, the machine should be returned to RTI or one of its service dealers to be repaired. Please note the following:...
- Page 4 SAFETY PRECAUTIONS 1. Read these warnings, the installation instructions, and the operating instructions before using the model 4100. These precautions are for your own safety. 2. Follow all warnings and instructions marked on the product and in the manual. 3. Do not use this product in or near water, it may cause electrical shock.
- Page 5 (centering a small cassette In addition to the cleaning and polishing between the raised guides), the operator will systems, the TapeChek 4100 employs a very typically push the AUTO switch to start the sensitive defect detection system. This is an automatic evaluating and cleaning cycle.
- Page 6 SMART ELECTRONICS operator can try again. If a tape is loaded and The TapeChek 4100 is a fully automatic will not run, it is possible that one of the machine with sensors to detect cassette size,...
- Page 7 Cassettes with erase protection tabs activated will not be erased by the 4100. The display will indicate "Erase Protected". POWER: 117 VAC,3 Amp., 60 Hz. Standard •...
- Page 8 OPERATOR CONTROLS TAPECHEK 4100 EVALUATOR/CLEANER The following is a description of the push button controls and keys on the front panel of the TapeChek 4100 Betacam unit. TRANSPORT PANEL SWITCHES: POWER This Power switch turns ON and OFF the main power.
- Page 9 DISPLAY The display key changes the information shown on the LCD display. Pressing the display key will sequence the operator through the various displays available on the TapeChek 4100. (See Page 11 - 14 in the Operator Manual )
- Page 10 " " This key is not used for normal machine operation. " " This key is not used for normal machine operation. Depressing this key will indicate the version of software in the machine. TAPE CONDITION LED'S The "A", "B" and "C" tape condition LED's are illuminated based on the total number of defects found in the tape.
- Page 11 Displays The diagnostic displays built in to the Tapechek 4100 have been carefully designed to assist our factory trained service technicians in diagnosing problems that may, from time to time, arise with the machine. There are two basic types of displays in this catagory: 1) Status and warning messages and 2) Coded diagnostic readouts.
- Page 12 transport keys to work but you can select a printout during this cycle. UP CEN LOW TOT 12 09 11 012 DEFECTS LENGTH 26:34 This display shows the defect counts in individual channels. The operator may switch This is the normal display during the AUTO back to the Total Defects/Length display at any reverse mode when defect inspection is actually time during the rewind cycle or after the tape...
- Page 13 The following diagnostic displays are available to verify the status of the various machine senors and to verify what the microprocesser is calling for at any given time. To see these displays, enter all 9's in the Date and press SET-UP. DIAGNOSTIC DISPLAY #1 MACHINE SENSOR READOUTS indicate the state of the various sensors in the tape transport mechanism.
- Page 14 DIAGNOSTIC DISPLAY #2 94 41 42 6B CC 0 LRCOiET 58 12:26 For diagnosing problems in the tape transport mechanism, this display helps the service technician. The meaning of the above sample information is as follows: "94" MACHINE MODE; Indicates AUTO FWD, AUTO REW, REWIND, MANUAL FWD, etc.
- Page 15 Mechanical Adjustments...
- Page 16 GENERAL The TapeChek 4100 transports the videotape at approximately 120 ips. The machine also has many mechanisms which are operated by 11 different motors. We have tried to design the product with assemblies to be self-adjusting where possible, but, obviously, some parts of the machine do require adjustment if new parts or assemblies are installed.
- Page 17 tape to move up and down slightly on the head without effecting erasure. The heads are built over- size to accommodate this.
- Page 18 TENSION SENSOR The tension sensor, arm and pin, is connected to a potentiometer and pushes against a leaf spring. This assembly measures the tension of the tape as it runs through the mechanism. The pin that touches the tape must be perpen-dicular to the transport panel. With the machine in the diagnostic(display #2) mode, the front panel readout for the tension sensor should be "00"...
- Page 19 The height of the cassette is determined by the 6 support posts on the transport panel. These hexagonal posts are fixed and not adjustable. For proper operation of the 4100 machine, it is imperative that the cassette be in contact with these support posts, not the carrier floor.. NOTE: The large cassette has a total of six support posts.
- Page 20 SPINDLE HEIGHT The spindles of the machine that drive the reels inside the cassette should be at .990 inches above the transport panel. This measurement is made from the top of the spindle flange down to the top of the transport panel. The spindle should be at this height, plus/minus .004 inches. CASSETTE PLUNGER SENSORS There are five plunger-type microswitch sensors underneath the cassette.
- Page 21 factory, further adjustment should not be required. However, if a new carrier floor has been installed, try to position it at the same height as the old one, otherwise, one might need to shim the "U" bracket up or down slightly with shim washers to have the carrier lift mechanism stop in the full up and full down position.
- Page 22 THREADING ARM GUIDE PLATES When the threading arms are in the out position, the threading arm wheels go underneath a guide plate. This plate should be within approximately .005" to the height of the ball bearing wheels. This is a very small gap (the thickness of a couple of pieces of paper) and, therefore, dirt on the threading arm wheels and transport panel can cause the threading arm to be sticky and not go underneath the guide plate smoothly.
- Page 23 By observing the power-up sequence of the microswitches in the spindle-mover cam TC 4100, one can usually determine if any notches. problems exist with the motors or sensors. 4) The cleaner lift motor now drops the The following sequence should occur after moveable cleaner to its "down"...
- Page 24 You will notice three common types of connectors Membrane switch keyboards and cable systems used in the 4100 machine. These are: On the front panel there are two membrane (1) Flat wire connectors which carry anywhere switch keyboards which are fastened with four from 10 to 40 wires.
- Page 25 MAIN CIRCUIT BOARDS CIRCUIT BOARDS BELOW PANEL There are three circuit boards in the base of the Under the transport panel, there are 2 circuit cabinet. One is the Microprocessor Board that boards: the Erase Board and the Sensor Board has the microprocessor, RAM, and other digital integrated circuits.
- Page 26 We recommend that you contact RTI of your dealer if you notice a problem that is not addressed in this manual - before attempting any repairs on your own. Our address is:...
- Page 27 TAPECHEK 4100 APPENDIX Primary Service Parts list Electrical diagrams...
- Page 28 Appendix A Service Parts list ________________________________________ Part Number Description 4100 Circuit Boards TA 2997-1 Power Board TA 2970 Sensor Board TA 2786 Erase Board TA 5450C Microprocessor Board TA 2794 Tach Wheel Board TA 2906-3 Transport Keyboard TA 2427-1 Display Board...
- Page 29 Service parts list continued..Misc. electronic parts. EI 6204 IC, Motor controller UDN 2953 EI 6206 IC, UDN 2950z EI 3048 Interrupter, opto EI 3048-1 Interrupter, opto new, Tach board EL 5313 Lamp, Detector 6 vdc. ER 3017 Regulator, 78H05 5 Amp. 5v. ER 6119 Regulator, LM338, Adj.
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