Electrohome G05 Anleitung zur Fehlerbehebung

Cinematronics Vector Monitor Repair Guide v.1.0 Page 1 of 53 The Cinematronics Vector Monitor FAQ and Repair Guide by McClintock Version 0.96 Februar

Cinematronics Vector Monitor Repair Guide v.1.0 Page 10 of 53 incorporate R122, as it was only required to compensate for non-linearity in the early

Cinematronics Vector Monitor Repair Guide v.1.0 Page 11 of 53 HIGH VOLTAGE SUPPLY The high voltage and cathode circuitry is the second section of th

Cinematronics Vector Monitor Repair Guide v.1.0 Page 12 of 53 just R9 and R11 to ground, thus lowering the voltage at the anode of D4 even more becau

Cinematronics Vector Monitor Repair Guide v.1.0 Page 13 of 53 Spot Killer Protection Circuitry Transistor Q2 can be considered as the master intensit

Cinematronics Vector Monitor Repair Guide v.1.0 Page 14 of 53 High Voltage Oscillator (early discrete monitor only) The HV Oscillator only appears in

Cinematronics Vector Monitor Repair Guide v.1.0 Page 15 of 53 MONITOR TYPES AND DIFFERENCES Now that we have discussed the operating theory of the

Cinematronics Vector Monitor Repair Guide v.1.0 Page 16 of 53 Analog Joystick Interface [need better description] The reading of a Joystick is near

Cinematronics Vector Monitor Repair Guide v.1.0 Page 17 of 53 VARIABLE INTENSITIES Two Cinematronics games utilized variable intensities – Sundance

Cinematronics Vector Monitor Repair Guide v.1.0 Page 18 of 53 The SPOT KILLER is connected in SERIES with Q2. The 13K resistor in series with the bri

Cinematronics Vector Monitor Repair Guide v.1.0 Page 19 of 53 HIGH VOLTAGE SUPPLY The Cinematronics monitor was manufactured with two slightly diff

Cinematronics Vector Monitor Repair Guide v.1.0 Page 2 of 53 INTRODUCTION Note: Very little, if any, of this document is my own work. Information i

Cinematronics Vector Monitor Repair Guide v.1.0 Page 20 of 53 HV Replacement By David Fish This should be of interest to anyone who has a Cinematro

Cinematronics Vector Monitor Repair Guide v.1.0 Page 21 of 53 Connecting the Electrohome supply to the Vectorbeam monitor is trivial. The drawback is

Cinematronics Vector Monitor Repair Guide v.1.0 Page 22 of 53 HV ‘Upgrade’ If you have the discrete HV monitor it should be possible to fix it unle

Cinematronics Vector Monitor Repair Guide v.1.0 Page 23 of 53 TUBE AND YOKE Cinematronics utilized both a Sylvania 19VARP4 and an AMPEREX M50-102W

Cinematronics Vector Monitor Repair Guide v.1.0 Page 24 of 53 MONITOR ADJUSTMENTS Cinematronics Monitor PCB All picture adjustments for a Cinema

Cinematronics Vector Monitor Repair Guide v.1.0 Page 25 of 53 X and Y Gain Adjustment Adjust potentiometers R102 and R202 so that all vectors (line s

Cinematronics Vector Monitor Repair Guide v.1.0 Page 26 of 53 FACTORY SERVICE UPGRADES The following are a list of the recommended factory service

Cinematronics Vector Monitor Repair Guide v.1.0 Page 27 of 53 IC3, the +18 volt regulator, may be replaced by a +15 volt regulator, 7815. IC5, the –

Cinematronics Vector Monitor Repair Guide v.1.0 Page 28 of 53 RECOMMENDED MONITOR UPGRADES It is often suggested that the very first thing one does

Cinematronics Vector Monitor Repair Guide v.1.0 Page 29 of 53 • Make all Factory Upgrades, including the LF13331 modification above. General Monit

Cinematronics Vector Monitor Repair Guide v.1.0 Page 3 of 53 To do: EXAMINE THE TAILGUNNER II SCHEMATICS FOR NOTES Detail Tailgunner joystick int

Cinematronics Vector Monitor Repair Guide v.1.0 Page 30 of 53 TROUBLESHOOTING AND TEST PROCEEDURES The basic methodology in troubleshooting a Cinem

Cinematronics Vector Monitor Repair Guide v.1.0 Page 31 of 53 converters on the monitor board. These undefined values may (and usually will!) cause t

Cinematronics Vector Monitor Repair Guide v.1.0 Page 32 of 53 4. Output of each TL081 (pin 6) You can see the output from each stage as the signal

Cinematronics Vector Monitor Repair Guide v.1.0 Page 33 of 53 Test Procedures Deflection Circuit Test Procedure. To test each DAC-80, you must fir

Cinematronics Vector Monitor Repair Guide v.1.0 Page 34 of 53 Intensity Circuit Test Procedures. To isolate a no display condition to the intensity c

Cinematronics Vector Monitor Repair Guide v.1.0 Page 35 of 53 SYMPTOM DIAGNOSIS The following symptoms and diagnosis come from various people and

Cinematronics Vector Monitor Repair Guide v.1.0 Page 36 of 53 If you have a bad ROM image, the breakers will almost always pop. Is this bad for the

Cinematronics Vector Monitor Repair Guide v.1.0 Page 37 of 53 unplug the yoke, leaving the HORZ and VERT transistors plugged in, and use a light bulb

Cinematronics Vector Monitor Repair Guide v.1.0 Page 38 of 53 • Check resistors R116, R216. An example. If the picture would start out OK, but afte

Cinematronics Vector Monitor Repair Guide v.1.0 Page 39 of 53 Symptom: Picture on the right side of the screen only. Game plays, but some of the vec

Cinematronics Vector Monitor Repair Guide v.1.0 Page 4 of 53 THEORY OF OPERATION To understand what goes on inside the Cinematronics monitor, we wil

Cinematronics Vector Monitor Repair Guide v.1.0 Page 40 of 53 Symptom: Vectors do not line up straight. Vectors at the screen edge are bigger. It

Cinematronics Vector Monitor Repair Guide v.1.0 Page 41 of 53 pulses dropping down to a 40-volt level. If no pulses, probe IC7 pin 4 with a scope and

Cinematronics Vector Monitor Repair Guide v.1.0 Page 42 of 53 Then I took voltage measurements during running and changed any part where a reading wa

Cinematronics Vector Monitor Repair Guide v.1.0 Page 43 of 53 Appendix A: Operator's Guide To Troubleshooting (taken from the Cinematronics Sta

Cinematronics Vector Monitor Repair Guide v.1.0 Page 44 of 53 If breakers trip: Problem is in coin meter circuit or call factory for help. If breake

Cinematronics Vector Monitor Repair Guide v.1.0 Page 45 of 53 Symptom: Player Control Button(s) Inoperative.  Refer to player control schematic in A

Cinematronics Vector Monitor Repair Guide v.1.0 Page 46 of 53 Appendix B: Replacement Parts While the majority of the Cinematronics monitors are co

Cinematronics Vector Monitor Repair Guide v.1.0 Page 47 of 53 DAC80s The Burr-Brown DAC80 used in the Cinematronics monitor comes in two "fla

Cinematronics Vector Monitor Repair Guide v.1.0 Page 48 of 53 Appendix D: Testing Transistors Most of the failures in the Cinematronics Vectorbeam m

Cinematronics Vector Monitor Repair Guide v.1.0 Page 49 of 53 TESTING TRANSISTORS WITH A DIGITAL MULTI-METER Set your meter to the diode test. Conn

Cinematronics Vector Monitor Repair Guide v.1.0 Page 5 of 53 DEFLECTION AMPLIFIER CIRCUIT The deflection amplifier circuit can be further divided in

Cinematronics Vector Monitor Repair Guide v.1.0 Page 50 of 53 Appendix E: Using an Electrohome G05 or Wells-Gardner V2000 What? You have read all t

Cinematronics Vector Monitor Repair Guide v.1.0 Page 51 of 53 Appendix F: Installing A Cap Kit Time and heat have "dried out" the electro

Cinematronics Vector Monitor Repair Guide v.1.0 Page 52 of 53 Deflection Parts Location Part Number Upgrade? Notes Q110; Q210 2N3716 Yes Origina

Cinematronics Vector Monitor Repair Guide v.1.0 Page 53 of 53 Cinematronics Monitor PCB - Rev. G – Parts to have on hand Location Part Number Upgra

Cinematronics Vector Monitor Repair Guide v.1.0 Page 6 of 53 Analog Switch From the DAC-80 the analog signal is then sent to a high-speed analog swit

Cinematronics Vector Monitor Repair Guide v.1.0 Page 7 of 53 R/C Network The voltage across a resistance-capacitance (“R/C”) network, found at the ou

Cinematronics Vector Monitor Repair Guide v.1.0 Page 8 of 53 Edge Gain Amplifier It is a property of the CRT that, near the edges of the screen, the

Cinematronics Vector Monitor Repair Guide v.1.0 Page 9 of 53 Deflection Amplifier The deflection amplifier converts the pick off voltages from the s