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SAMSUNG Proprietary-Contents may change without notice

This Document can not be used without Samsung's authorization

Flow Chart of Troubleshooting

7-

18

ALPHA_CHIP

 

C9
 

D3
 

DVSS4

 

1U
 F

 

C311

 

MVEP3 

M2

 

MWE

 N 

LD(8)

 

LD
 9 

J9
 

LD(9)

 

K8
 

LD(7)

 

LD
 8 

K7
 

LD
 7 

C312

 

L3
 

L4
 

VEP7

 

VEP5

 

VEP6

 

MVEP1 

E8 

MVEP2 

G3 

MINT

 

L2
 

IMAGE_IN

 

T

 

MREN

 

M1

 

HRD_

 N 

C6 

LD
 3 

L9
 

LD(3)

 

L8
 

LD
 4 

LD(4)

 

K10

 

LD(5)

 

LD
 5 

HD(2)

 

E2
 

E3
 

MD3

 

HD(3)

 

MD4

 

VDD2

 

B1
 

HA(3)

 

B2
 

MA2

 

MA3

 

HA(2)

 

DVSS11

 

J10

 

DVSS10

 

A6
 

DI 6 

Y(6) 

DI 7 

B7
 

Y(7) 

DVSS1

 

C2
 

HWR_N

 

1

 

NC 

HD(10)

 

MD1

 0 

DVSS12

 

DVSS13

 

K2
 

L5
 

3

 

LP2985AIM5-3.

 

0

 

U305

 

BYPASS

 

4

 

2

 

GND

 

HD(9)

 

F1
 

HD(4)

 

F2
 

MD5

 

HD(5)

 

MD6

 

G1
 

HD(6)

 

G2
 

MD7

 

HD(7)

 

MD8

 

H1
 

HD(8)

 

H2
 

MD9

 

100K

 

M4

 

M3

 

DVSS14

 

DVSS15

  M5

 

M8

 

B6
 

DI 5 

Y(5) 

B4
 

Y(1) 

A4
 

DI 2 

Y(2) 

DI 3 

B5
 

Y(3) 

A5
 

DI 4 

Y(4) 

M_SD 

SD 

A1 0 

M_SCL 

PCLK 

RESET

 

A1
 

IMAGE_RESET

 

SC 

B1 

D9
 

E10

 

TROBE 

C7 

L7
 

VEO

 

C3
 

VEP1

 

VEP2

 

C5
 

B8
 

VEP3

 

VEP4

 

4.7U

 F 

LD(10)

 

LD10

 

J8
 

LCS1 

K6 

LCD_MAIN_CS 

L6 

LCS2 

LCD_SUB_C 

M1

 0

 

LD
 0 

LD(0)

 

LD
 1 

M9

 

LD(1)

 

HREF 

A9 

LVALID 

STANDB 

C4 

GP 

DVSS9

 

H9
 

D1 0 

EXTVS 

LD(0:15)

 

VEP8

 

K4
 

VEP9

 

A2
 

VSYN 

B9 

FVALID

HA(1:4)

 

DVSS6

 

DVSS7

 

F3
 

F10

 

DVSS8

 

DVSS5

 

D8
 

E9
 

ON/OF

 F 

1

 

VIN

 

VOUT

 

5

 

VBA

 T 

HD(0:15)

 

Y(0:7)

 

C1
 

MA1

 

MA0

 

HA(1)

 

D1
 

M6 

LREN 

L_RD 

LRS 

K5 

RS 

LWEN 

M7 

L_W 

NC 

2

 

A8 

PCLK 

L10

 

LD(2)

 

LD11

 

H8
 

LD(11)

 

LD12

 

G9
 

LD(12)

 

LD13

 

G8
 

LD(13)

 

LD14

 

F9
 

LD(14)

 

LD15

 

F8
 

LD(15)

 

LD
 2 

HD(15)

 

MD2

 

MD1

 1 

J1
 

HD(11)

 

J2
 

MD1

 2 

HD(12)

 

MD1

 3 

J3
 

HD(13)

 

K1
 

MD1

 4 

HD(14)

 

MD1

 5 

K3
 

H3
 

HD(1)

 

MD1

 

HD(0)

 

E1
 

HA(4)

 

MCL 

C1 

M_CL 

L1
 

MC

 S

 

IMAGE_CS

 

MD0

 

D2
 

A7
 

B3
 

DVSS16

 

DVSS17

 

DVSS18

 

C8
 

LD
 6 

K9
 

LD(6)

 

DVSS2

 

DVSS3

 

10N

 F 

C315

 

R309

 

U303

 

MV317SAQ

 

CLK_I 

G1 

H1 0 

CLK_O 

A3
 

DI 0 

Y(0) 

DI 1 

VDD3

 

R316

 

100K

 

R318

 

C316

 

12PF

 

10M

 

HOT

 

12PF

 

C318

 

OSC300

 

CX-101F_24M

 

2

 

GND1

 

GND2

 

4

 

HOT

 

1

 

3

 

Summary of Contents for SGH-E330

Page 1: ...SM TELEPHONE SGH E330 GSM TELEPHONE CONTENTS 1 Specification 2 Circuit Description 3 Exploded Views and Parts List 4 Electrical Parts List 5 Block Diagrams 6 PCB Diagrams 7 Flow Chart of Troubleshooting ...

Page 2: ...Ltd Nov 2004 Printed in South Korea Code No GH68 06197A BASIC ⓒ This Service Manual is a property of Samsung Electronics Co Ltd Any unauthorized use of Manual can be punished under applicable International and or domestic law ...

Page 3: ...0 880 915 925 960 1710 1785 1805 1880 ARFCN range 1 124 0 124 975 1023 512 885 Tx Rx spacing 45MHz 45MHz 95MHz Mod Bit rate Bit Period 270 833kbps 3 692us 270 833kbps 3 692us 270 833kbps 3 692us Time Slot Period Frame Period 576 9us 4 615ms 576 9us 4 615ms 576 9us 4 615ms Modulation 0 3GMSK 0 3GMSK 0 3GMSK MS Power 33dBm 5dBm 33dBm 5dBm 30dBm 0dBm Power Class 5pcl 19pcl 5pcl 19pcl 0pcl 15pcl Sensi...

Page 4: ...M900 5 33 3 dBm 6 31 3 dBm 7 29 3 dBm 8 27 3 dBm 9 25 3 dBm 10 23 3 dBm 11 21 3 dBm 12 19 3 dBm 13 17 3 dBm 14 15 3 dBm 15 13 3 dBm 16 11 5 dBm 17 9 5 dBm 18 7 5 dBm 19 5 5 dBm TX Power control level DCS1800 0 30 3 dBm 1 28 3 dBm 2 26 3 dBm 3 24 3 dBm 4 22 3 dBm 5 20 3 dBm 6 18 3 dBm 7 16 3 dBm 8 14 3 dBm 9 12 4 dBm 10 10 4 dBm 11 8 4dBm 12 6 4 dBm 13 4 4 dBm 14 2 5 dBm 15 0 5 dBm ...

Page 5: ...ceiver front end which amplifies the GSM DCS aerial signal converts the chosen channel down to a low IF signal of 100 kHz The first stages are symmetrical low noise amplifiers LNAs They are matched to 50 ohm The LNAs are followed by an IQ down mixer It consists of two mixers in parallel but driven by quadrature out of phase LO signals The In phase I and Quadrature phase Q IF signals are low pass f...

Page 6: ...is use UFB LCD UFB LCD controls backlight brightness by contrast setting So BL_VDD voltage is always high value when phone is in active mode When phone is in dimming mode BL_VDD goes to about 10 duty PWM 1 3 Clock Generator The Clock Generator CG generates all clocks for internal and external usage The 32768 Hz crystal oscillator provides an accurate low clock frequency for the PCF50601 and other ...

Page 7: ...able of simultaneously generating up to synchronous with the play of the FM synthesizer various sampled voices can be used as sound effects Since the play data of YMU762C are interpreted at anytime through FIFO the length of the data playing period is not limited so the device can flexibly support application such as incoming call melody music distribution service The hardware sequencer built in t...

Page 8: ...e connected to memory YMU762C MV317S Camera DSP Chip controls the communication between ARM core and DSP core CS_NAND NCSRAM NCSFLASH in the ARM core are connected to each memory HWR_N and HRD_N control the process of memory External IRQ Interrupt ReQuest signals from each units such as PMU need the compatible process KBIO 0 7 receive the status from key and RXD0 TXD0 are used for the communicatio...

Page 9: ...iew and its Parts list 3 1 This Document can not be used without Samsung s authorization 1 Cellular phone Exploded View 1 QMW02 QFU01 QSP01 QMO01 QSC05 QCR17 QFL01 QMW01 QSC08 QCR17 QVO01 QME01 QMI01 QMP01 QKP01 QFR01 QCR08 QAN01 QCK01 QRE01 QRF01 QIF01 QCR11 QBA19 QLC01 QCA01 ...

Page 10: ...NIT CAMERA GH59 01472A QCR17 SCREW 6001 001639 QSC05 SCREW SHEET R GH74 08872A QSC08 SCREW SHEET L GH74 08873A QFL01 FOLDER LOWER GH75 04618A QMW01 MAIN WINDOW LCD GH75 04904A QFR01 FRONT COVER GH75 04616A QKP01 KEKPAD GH75 04619A QMP01 PBA MAIN GH92 01844A QMI01 MICROPHONE ASSY GH30 00130A QME01 UNIT METAL DOM GH59 01547A QCR08 SCREW 6001 001456 QAN01 ANTENNA GH42 00454A QRE01 REAR COVER GH75 046...

Page 11: ...loded view and its Part list 3 3 This Document can not be used without Samsung s authorization 3 Test Jig GH80 01909A 3 1 RF Test Cable GH39 00283A 3 2 Test Cable GH39 00217A 3 3 Serial Cable 3 4 Power Supply Cable 3 5 DATA CABLE GH39 00219A 3 6 TA GH44 00482A ...

Page 12: ...790 LED714 0801 002237 U300 0801 002882 U201 0801 002882 U304 0801 002882 U306 1001 001253 U603 1009 001018 SW600 1109 001316 U302 1201 002174 U102 1202 001036 U610 1203 003459 U702 1203 003483 U501 SEC Code Design LOC 1203 003486 U502 1204 002161 U301 1205 002327 U100 1205 002350 U400 1205 002607 U200 1404 001221 TH200 1405 001082 V600 1405 001082 V601 1405 001082 V602 1405 001082 V603 1405 00108...

Page 13: ...12 2007 000172 R213 2007 000174 R606 2007 000242 R605 2007 000566 R103 2007 000566 R109 2007 000775 R118 2007 001288 R124 2007 001298 R104 2007 001301 R703 2007 001301 R704 SEC Code Design LOC 2007 001301 R705 2007 001301 R706 2007 001301 R707 2007 001301 R708 2007 001301 R709 2007 001301 R710 2007 001301 R711 2007 001301 R712 2007 001301 R713 2007 001301 R714 2007 001301 R715 2007 001301 R716 200...

Page 14: ...24 2203 000278 C135 2203 000278 C407 2203 000278 C609 2203 000278 C613 2203 000278 C628 2203 000311 C148 2203 000330 C316 2203 000330 C318 2203 000330 C600 2203 000330 C612 SEC Code Design LOC 2203 000359 C106 2203 000386 C611 2203 000438 C119 2203 000438 C120 2203 000438 C152 2203 000438 C155 2203 000438 C156 2203 000438 C303 2203 000438 C317 2203 000438 C620 2203 000438 C621 2203 000550 C131 220...

Page 15: ...03 2203 005061 C604 2203 005061 C610 2203 005138 C105 2203 005482 C100 2203 005482 C103 2203 005482 C108 2203 005482 C114 2203 005482 C127 2203 005482 C130 2203 005482 C202 SEC Code Design LOC 2203 005482 C207 2203 005482 C209 2203 005482 C210 2203 005482 C211 2203 005482 C212 2203 005482 C400 2203 005482 C403 2203 005482 C412 2203 005482 C422 2203 005482 C503 2203 005482 C619 2203 005482 C622 220...

Page 16: ...002204 L109 2703 002208 L100 2703 002208 L102 2703 002267 L104 2703 002368 L111 2703 002779 L500 2801 004285 OSC300 2801 004339 X400 2806 001329 OSC101 2809 001281 OSC100 2901 001246 U500 2901 001254 F103 2901 001286 F700 2901 001286 F701 2901 001286 F702 2901 001286 F703 2901 001286 F704 2901 001286 F705 2904 001469 F100 2904 001470 F102 2904 001480 F101 2909 001246 U103 3301 001729 L620 3404 001...

Page 17: ...RXON Vcc_Tx_BURST GSM IN HITACHI METAL ANT SWITCH SHS C090T SIZE Imax 10 mA Freq MHz Loss 880 915 1 2 dB 925 960 0 9 dB 1710 1785 1 2 dB 1805 1880 1 2 dB Atten 2xfo 40dB 27dB GSM DCS 3xfo 35dB 21dB GSM DCS EN CLK DATA DCS S W OFFSET Mixer input power 16dBm max 22dBm min fcompRF 26MHz Philips Transceiver UAA3536 Pins IA IB QA and QB VIQ 1 25V typ 1 15V min 1 35V max Vmod 0 5Vpp FE_SW1 Vc_EGSM FE_SW...

Page 18: ... RAMP Charging Circuit Li Ion Battery OM6359 VIBRATOR SYSTEM CLOCK 13MHz MEMORY NAND 128Mb NOR 128Mb SRAM 64Mb RTC_CLOCK 32 768KHz LCD SIM CARD RECEIVER KEY RF INTERFACE VCC_CP Serial Data Interface I O Interface A D Interface BB INTERFACE MELODY IC 40 Poly SPEAKER BB Block Diagram of SGH E330 PMU CAMERA MV317 MIC VCC_RF_VCO VCC_RX_TX VCC_SYN VCC_TX_BURST VDD1 VDD2 VDD3 VDD_VIB MIC_BIAS VDD_KEY SP...

Page 19: ...SAMSUNG Proprietary Contents may change without notice 6 SGH E330 PCB Diagrams 6 1 This Document can not be used without Samsung s authorization 1 Main PCB Top Diagram ...

Page 20: ...SAMSUNG Proprietary Contents may change without notice PCB Diagrams 6 2 This Document can not be used without Samsung s authorization 2 Main PCB Bottom Diagram ...

Page 21: ...more than 3 4V Power On does not work Change the Battery END No Yes C414 V_ISUP 2 7V Check the PMU related to V_ISUP No Yes Check the Clock at R401 32KHZ Resolder X400 No Yes C431 VDD1 H Check the VDD1 circuit No Yes C430 VDD2 C429 VDD3 2 8V Check the VDD2 VDD3 circuit No Yes Check for the clock at C126 13MHz Check the clock generation circuit related to U100 No Yes Check the initial operation Yes...

Page 22: ...20 AVDD_TEM P 1UF C428 C412 100NF BLVDD 4 7UF C418 C422 SPVDD VBAT VBAT 100NF G6 VSS9 C402 4 7UF D4 C4 VSS21 VSS3 F4 VSS4 G4 VSS5 J3 VSS6 G5 K5 VSS7 VSS8 F6 E6 VSS13 VSS14 E7 D7 VSS15 VSS16 C7 D6 VSS17 VSS18 E5 D5 VSS19 VSS2 F5 VSS20 C2 B3 VIBVBAT VIBVDD A3 VPROG H7 VSS1 E4 VSS10 G7 G8 VSS11 VSS12 F7 B8 SIMI O SIMSCN A1 SIMSCP B1 SIMVBAT B2 SLPMOD D10 TM H5 J5 VBACK VBAT K4 VCC C1 RST D9 RSTO SCL ...

Page 23: ...bleshooting This Document can not be used without Samsung s authorization 7 3 2 Initial R200 RSTON H Initial Failure Check the circuit related to reset END No Yes Is U304 pin 4 6 memory CE OK Yes Yes No Check the U304 Check the circuit around LCD U304 Short or not solder Yes ...

Page 24: ...J4 K4 HA18 HA19 K2 P3 HA 2 GPIO 8 P6 N8 GPIO 9 L10 GPON1 N9 GPON2 HA 1 M4 N1 HA10 HA11 L2 L1 HA12 K9 GPIO 1 K8 GPIO10 L8 GPIO 2 M9 GPIO 3 P7 GPIO 4 GPIO 5 L7 L9 GPIO 6 GPIO 7 N7 N4 CS_N 0 CS_N 1 G5 CS_N 2 M5 G3 CS_N 3 CTS0_N B5 EARN A11 B10 EARP GPIO 0 M1 2 BU Z B11 CCLK E10 D8 CD I CD O E9 CEN D9 P11 CKI CKI32I P13 P14 CKI32O A10 AUXSP AUXST G10 AVDD P12 AVSS P10 E11 BDIO F10 BIEN BIOCLK F11 G11 ...

Page 25: ...d without Samsung s authorization 7 5 3 Charging Part Check the C508 4 9V Abnormal charging part END No Yes U502 pin 5 H No Yes Check the C507 4 2V No Yes Check the the circuit related to V_EXT_CHARGE Resolder or replace U502 Check the circuit related to CHG_ON signal Yes U502 pin L Yes No Resolder or replace U502 ...

Page 26: ...art of Troubleshooting 7 6 Charging Charge of Battery C505 ZD501 UDZS8 2B CHARGER_OK END_OF_CHARGE VDD2 100K R508 MES_BATT CHG_ON C506 1UF 10V V_EXT_CHARGE 2 7K 330K 1 VBAT 2 2K 1 R511 R510 R507 1 2 CPB DIS SC806 U502 10 CHRGB 200K 1 NOBAT NTC 9 VCC 3 VOUT 1 R512 7 6 GND GND 11 12 GND GND 13 14 GND 4 IPRGM ITERM 5 8 NC R509 ...

Page 27: ...used without Samsung s authorization 7 7 4 Sim Part CN400 pin 1 5 H Phone can t access SIM Card Check the sim charge pump Check the SIM Card END No Yes Yes Yes No Check the 32k OSC After Power ON Check SIMCLK Signal on CN400 pin3 in a few second Yes No Replace PBA After SIM card insert CN400 pin 2 H SIM_RST Yes ...

Page 28: ...ut Samsung s authorization Flow Chart of Troubleshooting 7 8 5 Microphone Part Check the connection from MIC Check the circuit from U200 to MIC Resolder MIC Resolder the R601 R605 R611 R612 R613 C604 and C610 END No Yes Yes Yes Yes No Check the MIC No Replace the MIC Microphone does not work ...

Page 29: ...ed without Samsung s authorization 7 9 Microphone Close to microphone MICROPHONE Close to MCP NC C600 12PF MIC_N MIC_P 10PF C609 NC C613 100NF V601 27PF C610 C604 C608 22PF 39PF C606 C612 12PF V600 MIC JTAG 100NF R601 1 5K R605 C611 MIC SCHX110 MIC600 1 5K 0 R602 10K R603 0 R604 C601 22PF MIC_BIAS C607 C602 47PF ...

Page 30: ... U300 pin 5 2 85V Speaker does not work Check the Clock signal at Pin 1 of U301 13MHz Check the clock generation circuit related to OSC100 and U301 END No Yes No Resolder or replace U300 U301 pin 17 18 1 8V When U301 operate Resolder U301 Yes No HDC700 pin 40 42 1 8V Check the circuit related to SPK_P SPK_N signal Yes No Is Speaker working No Yes Change the Speaker Yes Yes ...

Page 31: ... HD 4 HD 3 HD 2 HD 1 HD 0 HA 1 C301 VDD2 YMU762C QZE2 30 A0 CLKI 1 U301 AMP_P SPVDD AMP_N R300 51K 220NF C305 1 2NF C309 C306 4 7UF 6 3V EARP_HF MEL_13M 100NF C303 1NF 31 RD RST 4 WR 28 100PF C300 27PF 100NF C302 C310 0 R305 U300 TC7SH04FU TE85L 3 GND 2 IN 1 NC 4 OUT 5 VCC 18 SPOUT2 SPVDD 15 16 SPVSS VDD 7 VREF 9 VSS 8 29 CS IRQ 3 10 HPOUT L MONO HPOUT R 11 IOVDD 32 2 LED MTR 19 NC 5 6 PLLC SPOUT1...

Page 32: ...used without Samsung s authorization Flow Chart of Troubleshooting 7 12 7 Key Data Input When one of the keys is pushed is it displayed on LCD Check the Dome sheet Key Pad END No Yes Yes Check Initial Operation When one of the keys is pushed KBIO signal is OK Replace the PBA No Yes ...

Page 33: ... 9 13 1 5V Resolder or replace U603 END No Yes Yes Receiver does not work SPK PAD 1 5V Cange LCD module No Yes Is Receiver working Replace the Receiver No Yes No Resolder or replace U603 Yes No Resolder EAR600 EAR600 pin 4 5 short Yes HDC700 pin 40 42 1 5V No Resolder HDC700 Yes Check the soldering of the speaker wire No Modify the speaker wire soldering Yes U603 pin 1 5 1 5 ...

Page 34: ...C 21 22 NC 14 V R610 200K 1 ZD600 1 2 3 4 5 V604 VC040205X150R 3 1 VDD2 VDD2 NZQA5V6XV5T1 TC75W56FK TE12 L U610 2 5 6 7 C625 33PF 3 9PF C616 EAR_SWITCH JACK_I N AMP_P EARP_P V605 27PF C615 ZD601 NZQA5V6XV5T1 1 2 3 4 5 4 5 EPJ4 6A D1 NA EAR600 1 2 3 R609 180K 1 V602 U610 1 TC75W56FK TE12L 4 3 2 8 180K 1 R611 3S2 11 4S1 13 4S2 D1 16 4 D2 D3 8 D4 12 6 GND 17 GND 2 1 2IN 15 1S1 1 1S2 2S1 3 5 2S2 3 4IN...

Page 35: ... can not be used without Samsung s authorization 7 15 9 LCD Part Is LCD Contrast set on high level in the Menu Set LCD Contrast on high level END No Yes Yes LCD does not work HDC700 pin 24 2 8V Check the R304 C308 No Yes HDC700 pin 19 L_WR 20 RS is OK Check the U303 No Yes Yes Replace the LCD Module ...

Page 36: ...ce This Document can not be used without Samsung s authorization Flow Chart of Troubleshooting 7 16 10 Key Back Light U701 pin 5 H Check the PMU related to VDD_KEY END No Yes Yes Key Backlight does not work U701 pin 2 3 H No Resolder or replace U701 Yes ...

Page 37: ...rization 7 17 11 Camera part Camera function does not work Yes No Connect the camera module Check the Camera connector on LCD module Yes HDC700 pin 48 50 2 8V No Check LCD and HDC700 Yes OSC300 Pin 1 24MHz No Check OSC300 and R318 Yes HDC700 pin 24 2 8V Yes No Check the R304 C308 Is there another problem END Replace the camera module Yes ...

Page 38: ...4 Y 4 M_SD A SD A A10 M_SCL PCLK RESET A1 IMAGE_RESET SC L B10 D9 E10 TROBE C7 L7 VEO C3 VEP1 VEP2 C5 B8 VEP3 VEP4 4 7U F LD 10 LD10 J8 LCS1 K6 LCD_MAIN_CS L6 LCS2 LCD_SUB_C S M1 0 LD 0 LD 0 LD 1 M9 LD 1 HREF A9 LVALID STANDB Y C4 GP O DVSS9 H9 D10 EXTVS LD 0 15 VEP8 K4 VEP9 A2 VSYN C B9 FVALID HA 1 4 DVSS6 DVSS7 F3 F10 DVSS8 DVSS5 D8 E9 ON OF F 1 VIN VOUT 5 VBA T HD 0 15 Y 0 7 C1 MA1 MA0 HA 1 D1 ...

Page 39: ... input CH center freq Amp 50dBm Check U103 pin4 L pin8 L U103 pin5 65dBm F100 pin1 70dBm U100 pin6 7 8 9 1V U100 pin32 70dBm pin33 70dBm Check ANT Switch control circuit Resolder U103 Resolder F100 C104 L103 Resolder L100 L101 L102 Check U100 pin10 22 28 2 7V pin20 4 0V Check Resolder RF PSU Part Check Resolder U100 RF26MHz part R100 R101 R116 R117 R119 R121 1V Yes Yes Yes Yes Yes Yes Yes Yes No N...

Page 40: ...103 pin11 20dBm U102 pin6 20dBm OSC101 pin1 6dBm U102 pin48 3dBm Change or Resolder U100 Check ANT Switch control circuit Resolder L113 L114 C151 Resolder R123 U100 pin6 7 8 9 500mV Yes Check U102 VBATT pin42 43 OK Resolder or Change U102 or check PAM control signal Check VBATT Check U100 pin4 4 0V pin22 28 2 7V OK Check Resolder RF PSU Part No No No No No Yes No No Yes Yes Yes Yes Yes Yes Yes Yes...

Page 41: ...put CH center freq Amp 50dBm Check U103 pin4 L pin8 L U103 pin1 65dBm F102 pin1 70dBm U100 pin6 7 8 9 1V U100 pin38 70dBm pin39 70dBm Check ANT Switch control circuit Resoder U103 Resolder F102 C116 L107 Resolder C115 C117 L106 Check U100 pin10 22 28 2 7V pin20 4 0V Check Resolder RF PSU Part Check Resolder U100 RF26MHz part R100 R101 R116 R117 R119 R121 1V Yes Yes Yes Yes Yes Yes Yes Yes No No No...

Page 42: ...03 pin9 20dBm U102 pin31 20dBm OSC101 pin5 6dBm U102 pin37 3dBm Change or Resolder U100 Check ANT Switch control circuit Resolder L111 C147 Resolder R124 R125 R126 U103 pin6 7 8 9 500mV Yes Check U102 VBATT pin42 43 OK Resolder or Change U102 or check PAM control signal Check VBATT Check U100 pin4 4 0V pin22 28 2 7V Check Resolder RF PSU Part No No No No No No Yes No Yes Yes Yes Yes Yes Yes Yes Ye...

Page 43: ...102 2 2nH 51 R110 10K R104 C115 33PF 5 6nH L106 R100 3 6K 100NF 5 IN 1 3 OU T OU T 4 C130 F100 FAR F5EB 942M50 B28CH 2 G G 33 K 18nH L107 L112 33nH R118 L110 33nH L105 12nH R121 2 7K 2 7K R116 C125 1UF PCS_RX 4 VC1 VC2 8 2 VC3 220PF C137 DCS PCS_TX 6 G 10 G 12 G 13 G 14 G GSM_RX 5 GSM_TX 11 3 C145 U103 ANT 7 1 DCS_RX 9 10K 100PF R130 R129 8 2K 150PF C106 22n H L109 RFVCC 31 RFVCOVCC 25 RXON 23 24 ...

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