Thorough checks for your device
The tabs below show in detail the various checks and tests you device will go through for the service. Please, have a look below at the thorough servicing procedure.
- Funtional check of Output test
- Functional test of slide-in module and movement
- Functional test of printing and paper feed
- Set value 50 with tester and EAP-part and take readings, using 6 different values
- Texas IC SN 74 – HC 273 installed?
- DC Off-set adjustment
- Pre-amplifier set to 100 Hz – 2 kHz – 3.7 kHz – 52 kHz – 100 kHz – 150 kHz and check for correct output
- Functional test of key panel
- Correct alignment of push-buttons
- Functional test of rotary encoder and bandpass cursor
- Functional check of pager / beeper
- Check of parameters: amplification – frequency response
- Check of A and Ai (separately)
- Functional test of the cable test led, jack and banana plugs
- Functional test of IR sender connector (charging of sender)
- Continuity test of all connectors
- Check display plexiglass and bandpass filter designator for scratches
- Modify switchboard, if necessary
- Functional test of all keys; lighting and firm fit of buttons
- Check send and receive fuction of V24-interface, terminal or MRT
- CPU box DC-DC converter CPU
- Check installation of fuses
- Functional test of the clock
- Functional check of mains charger’s connector (mains adapter)
- Functional check of latching mechanism
- Check battery charge (battery test)
- Version 1: functional check of switches and LED’s
- 1 EPROM 18.2.98 installed
- Capacity test using 12V/55W lamp; potential drop in 30 sec less than 0,5 Volt
- Visual inspection of cover / casing
- Functional check of the plug-in connection or locking mechanism
- Check the frame for paint scratches, glue residue and dents
- Check casing for paint scratches and blemishes
- Check all front plates for scratches, damage and dirt
- Check the screws and orientation of the ‘legs’
- DMI: large modulation mat + connector or modulation mat
- If BICOM Multisoft is to be integrated, then the two BNC connectors on the rear of the device need to be exchanged for insulated BNC connectors.
- Check the switches on the rear of the device, that the position of the switch and sound match EAP / DMI labelling
- 800 mA fuse (F2 and F3) in DC converter / CPU box
- Perform a cable test with jack connector
- DMI: small modulation mat + connector or modulation mat
- Attenuation = decreasing tone
- Amplification = increasing tone – both should have the same volume
- Adjust DMI intensity and test output – run it 3 minutes, there have to be 3 beep tones
- Check BMF: apply 50 mV at input and adjust generator to 500 Hz; the magnetic field has to be audible through a speaker (connected as replacement mat) independently of the intensity controller
- Functional test of all buttons, keys and switches, as well as the firm fit of the front nut
- Check all LED’s whether they flash when activated
- Check acoustic signal of DMI with a speaker connected (instead of the mat)
- Functional test of switch
- Switch on IR and check whether the red LED works
- Check charging cable
- Functional check of charging cable
- Check charging current of sender (270 mA)
- Functional check of key lock and LED’s
- Check of adjustment in all modes (test device)
- Check of signal linearity (0, 50, 100, foot switch, V24)
- Functional test of sound level potentiometer and speakers
- Functional test of TP controller, if applicable
- Pre-resistor installed in ZD
- Check EAP plexiglass for firm fit and scratches
- Conductance value in the 3 settings “E”, “A” and “MT”