Technical Man tat 6. MX800 Base Station Fault Finding Procedure 6.1 6.1.1 The following test equipment nay be required for the: following tests: TOOLS (MX800 Base Station Programming Utility) TOOLS User Minimal RE Test Set {eg HP 8020 or equivalent) RO (Cathode Ray Oscilloscope) RE Power Meier {capable of measuring in WATS) Millimeter FEIGNED Power Supply. Network Analyses. MX800 Base Station (Tbe following testis will help diagnose faulty medullas) SAGE ®.
MXS00 Transceiver “Technical Manual! * there is notorious modulation then cheek the audio Revel opinion; IC Len the Microbiologists PCB. « Ciphers is no audio an the above Test point then go to Section 67 scull go forestation 6d 6.1.2 Receiver Section 6.3 6.3.1 * Check the Ri locking voltage is between 2 18 Vit the RX VCO Tog the Microelectronic PUB. 1f the Rx Socking voltage 3s ott 0f Spec then go to section 6.3. Inject a +60 dBm RF test signal set to CF and modulated with a kk.
“Technical Manual Wingdings: * Hi theirs no change in the RX VCO locking vi luge. (heir check that the VE supply voltage at Skews reiterate thalami TV aad wile a CRO check: the TCX GQ distillation on pin Bot ICED; * TEAL hE above tests pass then the VOD or ICTUS may be faulty, Re tum the Receiver Module to your Service Center 6.3.2 RX Front End + * Solder a 2-way Berg header oma a flying coax lead. Remove solder link 1 near the mixer (M1 and (hen fit solder Ink 1.
Transcendentalism Technical Manual » Connect a DVM fo the TX VEO Panda check the Tx Socking voltage is tween 2-18 Von ihe TX VOG TP on the Micro controller PCB If the Tx locking voltage Is out of spec then slowly adjust CTT on the TX VCO GE fall 360°, 4nd Check for & Change in the Socking volt! if there is a change in locking village, then realign the VCO voltage to 9V ut contra frequency.
