Figure 7: RF emission in TEST mode....................38 Figure 8: RF emission in ARMED mode.....................39 Figure 9: Magnete position for ARMED activation................40 Tables Table 1: Recommended list of test equipment to service the W400 MOB..........7 Table 2: Electronics component list.....................27 Table 3: Mechanical component list.....................33...
, for all service work covered by the warranty. See "To return the W400 MOB to Wamblee s.r.l." on page 9. If the warranty period has expired, you can still return the device to Wamblee s.r.l. for all service work. Contact your nearest Wamblee Sales Office for additional details on service work.
50 Ω Dummy load 1 Watt minimum, 10 dB loss Not defined attenuator Table 1: Recommended list of test equipment to service the W400 MOB P = Use for performance verification. A = Use for adjustment verification. T = Use for troubleshooting.
3 To return the W400 MOB to Wamblee s.r.l. Before shipping the W400 MOB to Wamblee s.r.l., contact your nearest Wamblee s.r.l. Sales Office for additional details. Write the following information on a tag and attach it to the W400 MOB: Name and address of owner •...
4.1 Verify the test mode functionality The test mode functionality (Main switch in OFF position) is a standard operation performed from the user before to wear the W400 MOB. The test mode functionality do these checks: Check the battery status •...
Modulation level: The modulation index (level variation) shall be more than 30 dB. ▪ After 10 seconds and / or 3 times short beep sequence, the W400 MOB shall go in OFF • mode; all led's go OFF , no beeper and no radio emission.
Modulation level: The modulation index (level variation) shall be more than 30 dB. ▪ To put the W400 MOB in OFF mode, remove the magnetic rod form the sensor axis. • 4.3 Verify the alarm operation mode (sea sensor activation) The alarm operation mode (Main switch in ARMED position –...
Probe Hi Z 10:1 • Connect the probe to ground and the tip on C39 && R30 node (see TP1 on Figure 2) and press the TEST pushbutton (you can leave the W400 MOB in TEST mode). For 10 seconds shall be...
Connect the probe to ground and the tip on Q1 base node (see TP2 on Figure 2) and press the TEST pushbutton (you can leave the W400 MOB in TEST mode). For 10 seconds shall be visible the graphics as figure 5, with a minimum performance of: Voltage peak-peak = min 8 Volts •...
-40 dBm and the modulation index (level variation from top to bottom level ) shall be almost 30 dB range. Change the spectrum analyzer top level (or connect a dummy load attenuator in series to the W400 MOB and the instrument) to: Top level = +25 dBm •...
Q10 go closed. The R25 may be grounded via D6 (from the sea sensor)and from Q9 (under microprocessor control). When the W400 MOB is under TEST mode, the power supply control is under microprocessor using Q9, instead when the unit is under ARMED mode, the power is controlled via D6. Follow the Q10 switch, is placed a linear voltage regulator U10 , a 3.3 Volts regulator for logic supply.
5 Schematic diagrams 5.1 Introduction Follow are reported schematic diagram and layout of the W400 MOB. Please take note that some parts are designed but not installed because are optional items for different product design.
6 Mechanical diagrams 6.1 Introduction Follow are reported mechanical diagram (exploded view) of the W400 MOB. Please take note that some parts are assembled together during production phase and are cannot delivered as single spare parts. Check the part list and place order only for Sub Assembly code as spare...
6.2 Mechanical components list Qty. Code Sub Assembly code Description Category C20200 Screw M3 x 8 Inox A2 Screws & Bolts C20301 As part of S20004 Lower adesive label Aesthetics C20005 Plastic flange Plastic and rubber C20208 As part of S20004 Insert M3 Screws &...
Instrument waveform pictures 7.1 Introductions In this chapter you can found all instrument waveform picture described in this service manual. Any picture are captured from the instrument defined in Table 1. The use of different instrument with the same performance don't affect the measurement result. Figure 4: Modulation signal described in Chapter 4.5...