Ericsson MPI-II VHF - Manuals

3. Check for proper operation of the synthesizer. Thereshould be approximately 0 dBm drive level on theSYNTH output line for proper transmit operation. Ifa Syntheiszer problem is suspected, following thesuggestions in Troubleshooting Synthesizer section. 4. If current consumption appears normal, and...

D.C. Analysis Battery voltage (7.5/10 Volts, B+) is supplied to a 5.4 volt regulator circuit consisting of transistors Q801, Q802 andQ803. Diode regulator U801 provides a 2.5 volt reference forthis circuit. Battery voltage (B+) is also supplied to the Syn-thesizer Board for isolation amplifier U206....

SURFACE MOUNT COMPONENT REPLACEMENT 1. "Tin" one terminal end of the new component and thecorresponding pad of the PWB. Use as little solderas possible. 2. Place the component on the PWB pads, observingproper orientation for capacitors, diodes, transistors,etc. 3. Simultaneously touch the &#...

2. A full charge cycle using an appropriate Ericsson GEcharger. 3. This procedure should be repeated again. Performingthe rated discharge and charge cycle at least twiceshould sufficiently restore the battery. MODIFICATION INSTRUCTIONS (Alternate IF Option) To install the Alternate IF Option, follow...