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> Sencore lot vg-91, tva-92, and vc-93 large lot
Sencore lot vg-91, tva-92, and vc-93 large lot
SENCORE LOT VG-91, TVA-92, AND VC-93 LARGE LOT L@@K
You are looking at Sencore VG-91 Universal Video Generator, Sencore TVA-92 TV Video Analyzer, and a Sencore VC-93 All Format VCR Analyzer.
The Sencore Specifications are as follows:
The VG91 Universal Video Generator is an all-channel, TV-RF generator that simulates any off-air or cable channel to completely analyze all NTSC tuners. Variable level RF and IF signals allow you to prove the operation of tuner and IF circuits in seconds. The exclusive and dynamic video patterns provide you with the information you need to analyze the operation and performance of video equipment. The MTS audio generator of the VG91 provides both standard audio and MTS stereo signals for testing and troubleshooting both mono and MTS receivers. You also get standard Y/C, composite video, and line level audio found on consumer and most professional equipment. With the spare video output and exclusive interconnect design, the VG91 lets you add to your service bench as your needs grow.
* All channel TV-RF generator for complete tuner analyzing
* Variable level 45.75 MHz video-IF troubleshooting and alignment generator
* Proof-positive tests for MTS Stereo/SAP on all channels
* Exclusive and dynamic NTSC video test signals
* Standard Y/C, composite video, and audio line outputs
* Spare video output and exclusive interconnect design that permits future updates or expansion
* TV-RF Generator : STD TV 2-69, STD CABLE 2-125, HRC CABLE 1-125, ICC CABLE 1-125; RF CARRIER FREQUENCY ACCURACY: ? 50 kHz; AURAL CARRIER: Visual carrier + 4.5 MHz, ? 1 kHz; AUDIO MODULATING FREQUENCIES: 300 Hz, 1 kHz, 3 kHz, 5 kHz; RF AURAL STEREO SEPARATION: > 25 dB Typically > 30 dB
* Video IF Generator : VIDEO IF FREQUENCY: Video: 45.75 MHz ?10 kHz; Aural: 41.25 MHz; IF TRAP SIGNALS: 47.25 MHz, 41.25 MHz, or 39.75 MHz ?10 kHz selectable; 4.5 MHz SOUND IF: 4.5 MHz ? 1 kHz
* RF-IF Output : RF-IF LEVEL STEP ATTENUATOR: RF Output = LO: 5-50 ?V, MED: 50-500 ?V, HI: 500- 5,000 ?V; RF-IF LEVEL VERNIER ACCURACY: RF "NORM" 1000 ?V; ?3 dB HI range. RF-IF OUTPUT IMPEDANCE: 75 ? 10%
* Video Pattern Generator : PATTERNS: Raster, Dot, Dots, Window Circle, Crosshatch, 10 Bar Staircase, Color Bars, EIA Color Full Field (Split Field Added), Multiburst Bar Sweep, Chroma Bar Sweep, Luma/Chroma Bar Sweep; EXTERNAL MODULATION: Input: BNC jack, 1 VPP (negative sync) 75 impedance
* Multichannel TV Sound Signal : AUDIO MODES: Mono, L only, R only, L+R, SAP; MODULATING FREQUENCIES: 300 Hz, 1 kHz, 3 kHz, & 5 kHz, ? 2 Hz; STEREO PILOT FREQUENCY: 15,734 Hz ? 2 Hz, locked to horizontal sync; STEREO PILOT LEVEL: Variable 0-100%; 100% = 5 kHz deviation; STEREO SUBCARRIER FREQUENCY: 31,468 Hz ?4 Hz, phase locked to pilot; SAP CARRIER FREQUENCY: 78,670 ? 10 Hz, phase locked to Pilot
* STD Y/C Output : LEVEL: 1 VPP (Y) luminance ?10% into 75, .63 VPP (C) chroma ?10% into 75; LUMA & CHROMA SOURCE: Selected by VIDEO PATTERN switch; FREQUENCY RESPONSE: (Y) Flat Multiburst Bars to 4.5 MHz, ?10%
* STD Video Output : STD VIDEO LEVEL: 1 VPP into 75, negative sync; FREQUENCY RESPONSE: Multiburst flat to 4.5 MHz, ?10%
* STD Audio Output : AUDIO SIGNAL: Selected by AUDIO FREQUENCY control; LEVEL: 400 mV ?150 mV into 10 k
* Power : 105-125 VAC, 60 Hz, 42 Watts
* HWD Size : 7 x 14 x 16.7 inches (17.9 X 35.8 X 42.5 cm)
Troubleshoot problems in a TV's horizontal output stage - without turning on the TV. The TVA92's "TV OFF" Horizontal Output Load Test detects high current loading or short conditions on the TV's main B+ power supply. Once the TV is running, the dynamic "TV ON" Horizontal Output Tests analyze the four important parameters of the horizontal output stage: (1) B+ Supply Voltage, (2) Flyback Pulse PPV and (3) Flyback Pulse Time and (4) Presence of Input Drive Signal.The TVA92 also substitutes directly for the horizontal output transistor. The internal subbing transistor lets you power up the TV chassis' so you can operate the high voltage circuits at full potential to guard against further defects which could bite you in the pocketbook later. You also get all the universal TV substitute signals you need plus the patented ringing test and exclusive yoke drive signal to dynamically test expensive IHVTs, flybacks, and yokes.
* Exclusive "TV OFF" horizontal output load test
* Dynamic tests through a simple 3 lead hook-up to the horizontal output transistor
* Horizontal output transistor sub and drive
* Universal substitute TV signals
* Patented Ringer Test to quickly pinpoint shorted turns in flybacks, IHVTs, yokes, and switching transformers
* Built-in monitor for all sub-signal results and making DCV and PPV measurements
* An exclusive yoke drive signal
* Audio & Video Drives : SIGNALS: Audio, MTS Composite Audio, Video Chroma, V&H Sync, Vert Sync, Vert Drive, Horiz Drive, Horiz Key Pulse; OUTPUT: 0-300V in 3 ranges, Impedance <50 ohms
* Simultaneous Drive Signals : SIGNALS AVAILABLE: V&H Blanking (Sandcastle) & 3.58 MHz color oscillator; OUTPUT: 0-30V, Impedance <50 ohms
* Vertical Yoke Drive : LINEAR CURRENT OUTPUT: 0-1.5 Amp peak; EXTERNAL VOLTS PROTECTION: ?500 Volts (DC + Peak AC)
* Horizontal Output Load Test : FUNCTION: Tests the horizontal output/flyback circuit by applying 15V B+ source, exciting drive to the flyback primary, and metering the B+ current and flyback pulse time; VOLTAGE APPLIED: 15 VDC ?.5 volts, current limited to 250 mA; PROTECTION: Diode and fuse protected
* Ringing Test : FUNCTION: Approximate tests of coil "Q" determined by applying an exciting pulse and counting the ringing cycles before reaching a preset damping level; ACCURACY: ?1 count on readings between 8 and 13 rings. EXCITING PULSE: 5 VPP, 60 Hz
* Horizontal Output Dynamic Measurements : All tests are done with a simple 3 lead hook-up to H.O.T.; DCV RANGE: 0 to +199V; RESOLUTION: 0.1 volts 0 to 99.9V; 1 volt 100 to 199V; PULSE PPV RANGE: Autoranged, 0-1500 VPP; PULSE PPV ACCURACY: < 2%, ?2 counts at 1 kHz; PULSE TIME RANGE: 0-50.0 ?S; PULSE TIME ACCURACY: 1%, ?2 counts; INPUT DRIVE FUNCTION: Monitors base lead to horizontal output and indicates if drive is present; INPUT DRIVE RESPONSE TIME: Immediate display updates with status change; INPUT DRIVE PROTECTION: 2,000V (DC + Peak AC) across inputs; 1500V (DC + Peak AC) from "-" terminal to ground
* Horizontal Output Device Sub & Drive : FUNCTION: Substitutes for the horizontal output transistor by switching the collector terminal to ground at 15,734 Hz rate and completing the flyback primary and yoke current paths. Current source is the chassis B+ power supply; SUB CONTROL "OFF": Permits normal chassis operation; CURRENT RANGE: Variable, 0-1.5 amps. Controlled by conduction time of transistor
* DC Bias Supply : RANGE: 0-30 Volts, ?1 volt, current limited to 1 amp; CURRENT SINK CAPABILITY: 250 mA from external voltage source
* Output Signal Monitor/DVM : DCV RANGES: Autoranged, 0-1999 volts; DCVACCURACY: <.5%, ?2 counts; DC BIAS mA: Autoranged, 0-1000 mA < 1%, ? 2 counts; PPV RANGE & ACCURACY: Autoranged, 0-1999 VPP < 2%, ? 2 counts
* AC Power : 105-125 VAC 60 Hz. Power switched with generator
* Weight : Approximately 20 lbs.
Sencore VC93 All format VCR Analyzer
Dynamic VCR head signal substituter for all formats.
Exclusive Hi-Fi Stereo all-format head signal substituter.
Innovative VCR luminance, chroma, and audio analyzer.
Complete all-format troubleshooting tool includes:
- Standard video & audio line outputs
- Autoranging DCV and PPV meter
Automatic servo analyzer (patented).
Obsolete-proof and expandable.
The lot also includes 5 video tapes of instructions and new Sencore products offered at the time of the sale of these units. I would like to sell these in one lot only they are new and they seem like they were hardly used.
