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Pantech PG-1210 Service Manual

Gsm cellular phone
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PG-1210 Service Manual
PG-1210
PG-1210 Service Manual
(GSM Cellular Phone)
Pantech Co., Ltd., Korea
May 26, 2005
st
1
Edition
For Use by Authorized Service/Maintenance Personal Only
Documents to Receive This Addendum:
PG-1210 Maintenance/Repair/Operating Manual

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Summary of Contents for Pantech PG-1210

  • Page 1 PG-1210 Service Manual PG-1210 PG-1210 Service Manual (GSM Cellular Phone) Pantech Co., Ltd., Korea May 26, 2005 Edition For Use by Authorized Service/Maintenance Personal Only Documents to Receive This Addendum: PG-1210 Maintenance/Repair/Operating Manual...

  • Page 2: Table Of Contents

    PG-1210 Service Manual CONTENTS SECTION 1 INTRODUCTION ......................3 1.1 A GSM D ......3 NTRODUCTION OF IGITAL ELLULAR OBILE OMMUNICATION YSTEM 1.2 F ...................3 REQUENCY LLOCATION AND 1.3 I ........................4 AME AND 1.4 C ........................4 HARACTERISTICS SECTION 2 ELECTRICAL SPECIFICATIONS..................5 2.1 G ............................5...
  • Page 3 PG-1210 Service Manual 6.3 SIM CARD PART ……………………………………...…………………………………………….34 6.3.1 SIM ………………………………………………………………………………………….34 ERROR 6.4 CHARGER PART……………………………………………………………………………………..35 6.4.1 C ………………………………..…………………………………………………35 HARGING ERROR 6.5 RF PART…………….………………………………………………………………………………… 37 6.5.1 T ………………………………………………………………… …………………37 EST CONDITIONS 6.5.2 P ……………………………………………………………………….38 OWER UPPLY HECK POINT 6.5.3 P ………………………………………………………………………...40 OWER AMPLIFIER MODULE 6.5.4 V...

  • Page 4: Section 1 Introduction

    PG-1210 Service Manual SECTION 1. Introduction 1.1 An Introduction of GSM Digital Cellular Mobile Communication System GSM (Global System for Mobile communication) concluded that digital technology working in the Time Division Multiple Access (TDMA) mode would provide the optimum solution for the future system.

  • Page 5: Item Name And Use

    2) Surface mounting device (SMD) is used to ensure high reliability, compactness and lightness. 3) PG-1210 adopts the Silab’s Aero II RF transceiver, which is a complete RF front end for multi-band GSM and GPRS wireless communications.

  • Page 6: Section 2 Electrical Specifications

    PG-1210 Service Manual Section 2. Electrical Specifications 2.1 General GSM850 / DCS / PCS Band 824MHz~849MHz / 1710MHz ~ 1785MHz / 1850MHz Mobile Transmit Frequency ~1910MHz 869MHz~894MHz / 1805MHz~1880MHz / 1930MHz Mobile Receive Frequency ~1990MHz The Number of Time Slot...

  • Page 7: Section 3 Operation

    PG-1210 Service Manual Section 3 Operation 3.1 Name of each part 3color Indicator LED 1.0’ 65K CSTN (96x64 pixels) 330K CCD Camera Speaker/ Receiver Hall 1.8’ 65K CSTN (128*128 pixels) Soft Key 1 Soft Key 2 Camera key Volume End/ Power on, off...

  • Page 8: Display

    PG-1210 Service Manual 3.2 Display(Dual LCD) Parameter Projected Actual(MAIN LCD) Display Color CSTN LCD with white LED back lighting 1.8” 65k colors Pixels : 128*160 pixels Character : (font size :12/14/16) 8characters x 10lines(max) Driver S6B33B9 (SAMSUNG Electronics.) Module Dimen.

  • Page 9: Section 4 Theory Of Operation

    PG-1210 Service Manual Section 4. Theory of Operation 4.1 Logic Section 4.1.1 DC Distribution and Regulation Part Applying battery voltage and pressing “END” key on the key pad short-circuits “Ground” and “ PowerON”. AD6537B(U201) control that power manage regarding power on/off in handset Pressing POWERKEY on the key pad is active on the handset.
  • Page 10 PG-1210 Service Manual ☞ Configuration by Function of AD6527 1 Microprocessor Core AD6527 has a built-in ARM7 microprocessor core, including microprocessor interrupt controller, timer/counter, and DMA controller. And besides, 32bit data path is included, and up to 8Mbyte addressing is enabled and can be extended up to 16Mbyte. Although external clock should be provided to operate the microprocessor, this core uses 13MHz VCTCXO to provide clock.

  • Page 11: Memory Part

    PG-1210 Service Manual 4 RF Interface This interfaces the RF part to control power amplifier, Tx LO buffer amplifier, VC-TCXO, and AGC-end on transmit/receive paths in the RF part. 1) Transmitter Interface: This sends Ramp_DAC signal to the RF part to control power amplifier.

  • Page 12: Notification Part

    PG-1210 Service Manual SRAM has a capacity of 64Mbit(8MByte) and stores system parameters, data buffer, and stack of each task in it. 3 Key Tone Generation All alert signals are generated by the DSP and output to the ABB audio output.

  • Page 13: Radio Transceiver Section

    4.2 Radio Transceiver Section Fig.4-1. RF Transceiver block diagram The PG-1210’s RF Transceiver, which is Aero II, is the industry's most integrated RF front end for multi-band GSM/GPRS digital cellular handsets and wireless data modems. The high-level of integration obtained through patented and proven design architectures, fine line CMOS process...

  • Page 14: Dc Distribution And Regulation Part

    4.2.3.1 An Overview of Receive section Fig.4-6. Receiver block diagram The PG-1210’s Aero II transceiver uses a digital low-IF receiver architecture that allows for the on-chip integration of the channel selection filters, eliminating the external RF image reject filters, and the IF SAW filter required in conventional superheterodyne architectures.

  • Page 15: Receiver Part

    PG-1210 Service Manual to be compatible only with a BBIC from the same supplier in order to address the complex dc offset issues. However, since the Aero II transceiver has no requirement for BBIC support of complex dc offset compensation, it is able to interface to all of the industry leading baseband ICs.

  • Page 16: Transmit Section

    PG-1210 Service Manual And F503 filter passes the PCS bands that cover 1960±30MHz. These filters degrade other band signals with high passing loss of 30~60 dB. The EGSM, DCS, and PCS’s maximum insertion loss is 2.6 dB 4.2.4 Transmit Section 4.2.4.1 An Overview of Transmit Section...

  • Page 17: Transmitter Part

    PG-1210 Service Manual switching bands. The transmit output path is automatically selected by the ARFCN bits and the BANDIND bits. 4.2.4.2 Transmitter Part A. 3 dB attenuator These passive components are adopted for PAM to operate in a stable output power.

  • Page 18: Section 5 Alignment Procedure

    PG-1210 Service Manual Section 5. Alignment Procedure 5.1 Recommended Test Equipment Model No. Description Maker Remark GSM Mobile Station 8960 Agilent Technologies Test Set 8593E Spectrum Analyzer Hewlett Packard TDS 340A Oscilloscope Tektronix FLUKE 87 Digital Multimeter Fluke E3630A DC Power Supply...

  • Page 19: Section 6 Equipment Repair Procedure

    PG-1210 Service Manual SECTION 6. Equipment Repair Procedure 6.1 No Power On with battery Applied. 6.1.1 Power CHECK 1. Check battery power : 3.5V~4.2V. Battery Pack Terminal 2. Check to see if C202.1 or C205 pin voltage is same with battery power : CP100...
  • Page 20 PG-1210 Service Manual CP100 3. Check to see if U408.5,6 and R221 pin is same with battery power : CP101 PANTECH...
  • Page 21 PG-1210 Service Manual CP101 CP101 PANTECH...
  • Page 22 PG-1210 Service Manual 4. Check to see if U201 and C224, C225, C227, C229, C232, C233, C234 pin is 2.8V_EXT, 2.8V_MEM, 1.8V_RTC, 1.8V_D, VMIC, VTCXO, VSIM, : CP102 CP102 CP102 PANTECH...
  • Page 23 PG-1210 Service Manual 6. Check to see if U201.T14 pin becomes to 0V : CP103 Pressing “END” key to turn on equipment. CP103 7. Check to see if C101,C102,,, C105,C106,,C108,C111,C112, C113,C114, is 1.8V_D, 2.8V_EXT, VSIM, 1.8V_RTC : CP104 CP104 CP104...
  • Page 24 PG-1210 Service Manual 8.Check to see if U509 and C132,C129,R130 is 2.8V_MEM : CP105 CP105 CP105 PANTECH...

  • Page 25: Oscillation Check

    PG-1210 Service Manual 6.1.2 Oscillation CHECK 1. Check to see if U101 No. E9 and C9 pin is oscillated(32.768KHz) : CP106 Check R132 and then replace X101 CP106 CP106 2. Check to see if U101.N10 pin Master Clock(13MHz). : CP107...

  • Page 26: Keypad Led Not In Operation

    PG-1210 Service Manual CP107 6.1.3 KEYPAD LED Not in Operation 1. Check to see if R433 ~ R438 : CP110 Replace the resistors. 2. Check R432 signal (control PWM) : CP111 3. Check U401 CP110 CP111 CP111 CP110 PANTECH...

  • Page 27: Lcd

    PG-1210 Service Manual 6.1.4 LCD Backlight Not in Operation (White) 1. Check to see if U101.G18 or R104,R105 pins are controlled GPIO (2.8V): CP112 CP112 CP112 PANTECH...

  • Page 28: Audio Part ( Earpiece, Hands-Free Earphone, Microphone, Hands-Free Mic )

    PG-1210 Service Manual 6.2 Audio Part ( Earpiece, Hands-free Earphone, Microphone, Hands-free Mic ) 6.2.1 No receiving tone heard ( Ear-piece ) 1. BEEP TONE: Check U201.J15 and K15(C208,C209,) pins (Ear Signal) for waveform : CP113 Replace U201. 2.VOICE,BELL TONE : Check U301.17, 18 and C416,C417 pins for waveform. : CP114 Replace U301.

  • Page 29: N Oreceiving Tone Heard (Hands Free Earphone )

    PG-1210 Service Manual 6.2.2 No Receivng tone heard ( Hands-free Earphone ) 1. Check to see if U101.J16 (R215) is around 0V: Check to see J105 : CP115 Set to HP8922M to connect a call and then set to 1kHz.

  • Page 30: Sidetone Not Transmitted (Earpiece )

    PG-1210 Service Manual 6.2.3 Side Tone Not transmitted ( Ear-piece ) Repeat 6-2-1 No receiving tone heard.( Ear-piece ) 1. Check to see if Mic + pin is around 1.5V : CP117 Check that R135, C137, C136 and R138 is cold solder, broken, short to the other PCB pattern or not If you find out any defective part, you replace it.

  • Page 31: Sidetone Not Transmitted (Hands Free Mic )

    PG-1210 Service Manual 6.2.4 Side Tone Not transmitted ( Hands-free Mic. ) Repeat 6-2-2 No receiving tone heard.( Hands-free Earphone ). 1. Check to see if R206 pin is 2.5V : CP119 Check that C222is cold solder,broken,short to the other PCB pattern or not.

  • Page 32: Hook Switch Not Working

    PG-1210 Service Manual 6.2.5 Hook Switch not working 1. Check to see if Q405.1 pin is 2.4V : CP120 2. Check to see if Q405.1 pin is 0V during pressing Hook Switch : CP120 Check that B101 cold solder, broken, short to the other PCB pattern or not If you find out any defect, you replace it 3.

  • Page 33: Melody Not Ringing

    PG-1210 Service Manual 6.2.6 Melody not ringing 1. Check to see if C301, C303 is Vbat : CP121 2. Check to see if C302, C300 is 2.8 V : CP122 3. Check U301.12, 13, 14 pin for waveform: CP123 Check that C306, R301,R302, C307and R303 cold solder, broken, short to the other...

  • Page 34: Vibrator Not Working

    PG-1210 Service Manual 6.2.7 Vibrator not working 1. Check to see if R102 pin is 2.8V : CP124 Check to see R102cold solder, broken, short to the other PCB pattern or not If you find out any defect, you replace it 2.Check to see Vibrator...

  • Page 35: Sim Card Part

    PG-1210 Service Manual 6.3 SIM card part 6.3.1 SIM error Check to see if J104.1 pin is around 2.85V : CP126 Check to see C117 pin cold solder, broken, short to the other PCB pattern or not : If you find out any defect, you replace it 2.Check to see J103.2, 3, 6(R116,R117,R118) for wave form : CP127...

  • Page 36: Charger Part

    PG-1210 Service Manual 6.4 Charger part 6.4.1 Charging error Insert adaptor into I/O jack. Check to see if F101, D101 pin is 5.2V : CP128 Check to see J101.23, 24(I/O connector) pin and F101, D118 cold solder, broken, short to the other PCB pattern or not : If you find out any defect, you replace it 2.
  • Page 37 PG-1210 Service Manual CP129 PANTECH...

  • Page 38: Rf Part

    PG-1210 Service Manual 6.5 RF Part 6.5.1 Test conditions 1. Test condition 1 : VBAT = 3.8V during all tests 2. Test condition 2 : Traffic channel :GSM850 Band Tx mode Ch190 Power Level : 13 3. Test condition 3 : Traffic channel : DCS Band...

  • Page 39: Power Supply Check Point

    PG-1210 Service Manual 6.5.2 Power Supply Check Point Step Test point Typical Value Condition Checking Point U504 3.8V 2,3,4,5,6,7 Check route connection : VBAT Pin#1 U504 2.8V 2,3,4,5,6,7 Check route connection : VCC_RFCHIP Pin#5 U505 3.8V 2,3,4,5,6,7 Check route connection : VBAT...
  • Page 40 PG-1210 Service Manual Step 2-3 Fig.6-3 U505 PAM’s Power Check Point PANTECH...

  • Page 41: Power Amplifier Module

    PG-1210 Service Manual Step 2-3 Fig.6-4 U505 PAM’s PCB Layout 6.5.3 Power Amplifier Module Test Step Typical Value Condition Checking Point point U505 Logic High 2, 3, 4 Check route connection : TX_PA Pin#2 Logic High 3, 4 Check this pin 2, When Logic High, U505 then DCS/PCS Mode.
  • Page 42 PG-1210 Service Manual STEP 3-2 STEP 3-1 Fig.6-5. U505 PAM TX_PA and DCS SEL Test Point Circuit PANTECH...

  • Page 43: C - Tcxo

    PG-1210 Service Manual STEP 3-2 STEP 3-1 Fig.6-6. U505 PAM TXEN and DCSSEL Test Point on the PCB Layout 6.5.4 VC-TCXO Test Step Typical Value Condition Reaction to Abnormality point U503 0.5V ~ 2.5V 1,2,3,4,5,6,7 Check route connection : AFC...

  • Page 44: Antenna Switch Module

    PG-1210 Service Manual STEP 4-1 STEP 4-2 Fig.6-8. U503 VCTCXO Check Point on the PCB Layout 6.5.5 Antenna Switch Module Typical Step Test point Condition Check point Value When Pin#10 is Logic High and Pin#4 U501 2.8V and Pin#2 is Logic Low the mode is Pin#10 EGSM Tx.
  • Page 45 PG-1210 Service Manual STEP 5-1 STEP 5-2 STEP 5-4 STEP 5-3 Fig. 6-9 U501 Antenna Switch Module Circuit STEP 5-1 STEP 5-2 STEP 5-3 Fig. 6-10 U501 Antenna Switch Module PCB Layout PANTECH...

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