Programmer Sim Card Reader SOLO GWR. Scheme, description

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ENCYCLOPEDIA OF RADIO ELECTRONICS AND ELECTRICAL ENGINEERING
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Programmer Sim Card Reader SOLO GWR. Encyclopedia of radio electronics and electrical engineering

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Encyclopedia of radio electronics and electrical engineering /Mobile telephony

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Another design is presented to your court - programmer GWR (Gold-Wafer-Ready), which combines all the features necessary for flashing gold wafer cards.

GWR has two functions: Phoenix interface и JDM programmer.

(click to enlarge)

Just don’t draw conclusions right away, the fact is that this is not just a combined design, the schematics of the JDM programmer are fundamentally revised in it, we can say that the programmer has a completely different construction structure in JDM mode due to the use of the MAX232 chip, which gives full level matching RS232 and TTL, no negative voltages and surges above the power supply at the inputs of programmable microcircuits! In practice, only software compatibility remained from JDM and that's it. The programmer perfectly flashes OTP PIC (disposable), which could not be said about the JDM programmer. For flashing separately 24CXX memory, a separate socket is provided on the programmer (for convenience). The design is made in the style of price-quality-simplicity, which is why a switch is used, not switches. The iron-laser technology is perfectly supported due to the enlarged printed pattern. In JDM (Ludipipo) mode, the switch must be in the depressed position; to switch to Phoenix, the switch must be pressed.

Parts can be used not necessarily those indicated in the diagram, for example, the kd243 diode can be replaced with any other having a forward current of at least 200mA and a reverse voltage of at least 25V, or you can do without it if you are sure that you will never connect the power the other way around. The same problems can be attributed to the transistor (Ik - at least 100mA, Ube - at least 25V), and voltage stabilizers, etc. Binding capacitors MAX232 - 2,2-4,7mF / 25V. The capacitor in front of the stabilizer 7812 (K142EN8B) has a voltage of at least 25V. A zener diode can also be used at 4,7 Volts, or it can also be used at 6,2 (ks147,156,162) or the like. Pay attention to the fact that the ground from the COM port going through the 5th leg of the connector passes through its iron case! The GWR is powered by an unstabilized DC voltage of 14-20 Volts, power supplies from a dandy are great, just do not forget that these PSUs have a minus in the center of the connector! The cord for GWR is a regular MAMA-MAMA extension cable (1-1,2-2...) if a 9-pin com port is used. The programmer has a 9pin MAMA connector! If your LEDs are dim, then reduce the resistance of the current-limiting resistors to reasonable values. Board size 70X130.

Programmer Sim Card Reader SOLO GWR. Photo Sim Reader

The programmer works perfectly with the Icprog program, especially since this program has a built-in Vinfeniks. Simplified programmer test, as now you can visually check the operability of the DATA and MCLR circuits by checking the checkboxes in the "hardware test" section of the Icprog program, according to the state of the LEDs, of course, having previously set both GWR and Icprog to JDM mode.

All drawings are in Visio 5.0 (or higher) format as only in the original are all the qualities and dimensions of the drawing fully transmitted. Well, like everything. Success in creative work! Sincerely, SOLO.

Download blueprints (292 kb)

Publication: cxem.net

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