Vanguard Labs WEPIX 2000B APT Satellite Receiver
- New NOAA 18 satellite frequencies programming
- Setup of the WEPIX-2000-B RECEIVER
- Front Panel Control of the WEPIX-2000-B RECEIVER
- Troubleshooting tips of the WEPIX-2000-B RECEIVER
- EPROM programming of the WEPIX-2000-B RECEIVER
- Alignment of the WEPIX-2000-B RECEIVER
- External Scan Control notes of the WEPIX-2000-B RECEIVER
- Miscellaneous Notes for the WEPIX-2000-B RECEIVER
- Download ALL WEPIX 2000B schematic diagrams Revision D in .ZIP format
- You can also get individaul pages here:
- s Schematic input aplifiers, mixer, VCO and pre-scaler
- s 10.7 MHz IF, limiter, AGC and Signal Strength
- s PLL Demodulator, Squelch & Audio
- s Synthesizer, 1st LO, & Frequency Control
- s Channel Display, 12V Regulator, Rear Panel Output
- s Assembly Drawing, PCB, Chassis
- s Assembly drawing, 1st LO
- s Assembly Drawing, 1st RF Amplifier
- s Assembly Drawing, 1st and 2nd RF Amplifier
- s Assembly Drawing, Mixer, 1st IF 10.7 MHz Crystal Filter
- s Assembly Drawing, 10.7 MHz IF Amplifier / Limiter, AGC and Signal Strength
- s Assembly Drawing, 2nd IF, & PLL Demodulator
- s Assembly Drawing, Audio Drivers
- s Assembly Drawing, 1st LO Synthesizer & Frequency Control
- s Assembly Drawing, notes on the NJ8820B synthesizer
- s Assembly Drawing, notes on the NJ8820B synthesizer
- s Allison's improved PLL Demodulator, Squelch & Audio
- s Allison's improved PLL Demodulator, Squelch & Audio
These schematic diagrams were reverse-engineered by Allison Cawthon, and may not be 100% accurate, however they should be sufficient to allow repairs to the receiver by a competent radio technician.
Allison Cawthon wrote:
"I could not label some component values since it would require removing the caps etc from the circuit to measure them.
Maybe I will find another WEPIX 2000 Receiver sometime and take the risk; I have some hot tweezers for SMT work, and parts are easily removed and replaced.
I may make some changes to the drawings once I do a review, but it is close as it is.
Please just use them at your on risk so to speak, and take reasonable care..
I hope that others can add additional information and corrections as required. "
Back to Milan's Home Page
e-mail Milan Konecny
