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Fig 1 Block Diagram 5

Fig 2 Pad Number description 8

Fig 3 X201 and VPP/VPPGND pad 9

Fig 4 Production Flash Connector 11

Fig 5 X203 Battery Pads 12

Fig 6 GD47 LCD Pin Numbers 14

Fig 7 Baseband Power Distribution 15

Fig 8 Charging Block Diagram 16

Fig 9 Output Overvoltage protection - Battery Removed 18

Fig 10 BSI Connections - All Batteries 19

Fig 11 SIMCardDetX Detection Levels 20

Fig 12 Standard Battery, BTEMP Connection 21

Fig 13 SMR Power Functions 23

Fig 14 Power Up with Charger 24

Fig 15 Power Up with Switch 25

Fig 16 Audio Control Timimg Chart 28

Fig 17 Flash Programming Sequence 32

Fig 18 Flash Protection/ +12V Flash 33

Fig 19 RF Fequency Plan 36

Fig 20 Frequency Synthesiser 39

Fig 21 Transmitter 42

Fig 22 Audio /Vibrator Schematic 47

Fig 23 Audio Block Diagram (version 4) 48

Fig 24 Internal Ear Piece Electric Interface 49

Fig 25 Internal Microphone Electrical Interface 49

Fig 26 Buzzer Electrical Interface 50

Fig 27 External Audio Interface- Block Diagram 53

Fig 28 External Audio Interface - Microphone 54

Fig 29 External Audio Interface - Speaker 54

Fig 30 Triggering levels/Forbidden Operating Range-HEADDET and HOOKDET 55

Fig 31 4 Pole Jack plug for audio accessories 56

Fig 32 HDC-5 Schematic 58

Fig 33 Vibrator Electrical Interface 60

Schematics/Layouts A1-A8

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DIY Battery Repair

DIY Battery Repair

You can now recondition your old batteries at home and bring them back to 100 percent of their working condition. This guide will enable you to revive All NiCd batteries regardless of brand and battery volt. It will give you the required information on how to re-energize and revive your NiCd batteries through the RVD process, charging method and charging guidelines.

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