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Pantech PG-1810 Service Manual

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Contents
  1. Table Of Contents
  2. Table Of Contents
  3. SECTION 1 INTRODUCTION
  4. G ENERAL
  5. SECTION 3 OPERATION
  6. D ISPLAY
  7. BLUETOOTH MODULE
  8. SECTION 4 THEORY OF OPERATION
  9. Part
  10. S ECTION
  14. OFFSET PLL
  15. T EST E QUIPMENT
  16. HECK
  17. PERATION (W HITE )
  18. MP3 HEARD ( H ANDS - FREE E ARPHONE )
  19. Side Tone Not transmitted (Hands-free Mic)
  20. Vibrator not working
  21. SIM error
  22. Charger part
  24. ONDITION 1
  25. RF Transceiver _ TEST CONDITION 2, 3, 4, 5, 6
  26. ILTER _ TEST CONDITION 2, 3, 4, 5, 6
Pantech PG-1810 Service Manual Manual pdf 10 page image
PG-1810 Service ManualPANTECH R&D CONFIDENTIAL9Section 4. Theory of Operation4.1 Logic Section4.1.1 DC Distribution and Regulation PartApplying battery voltage and pressing “END” key on the key pad short-circuits “Ground” and “_PowerON”. AD6535(U202) control that power manage regarding power on/off in handsetPressing POWERKEY on the key pad is active on the handset.This will turn on all the LDOs, when POWERKEY is held low. The power of RF Tx power amplifier issupplied directly by the battery.4.1.2 Logic part
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This manual is suitable for:
PG-1810
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