LG LGKS20 Support Question
LG LGKS20 Support Question
Find answers below for this question about LG LGKS20.Need a LG LGKS20 manual? We have 1 online manual for this item!
Question posted by jamesjep1920 on July 5th, 2017
Is The Lgk7 Being Recalled
is the lgk7 being recalled
Current Answers
Answer #1: Posted by Odin on July 5th, 2017 5:05 PM
Odin
Member since:
April 10th, 2010 Points: 41,236,740
Member since:
April 10th, 2010 Points: 41,236,740
Related LG LGKS20 Manual Pages
Operating Instructions - Page 1
...115 4.14 Camera Troubleshooting 117 4.15 Keypad Backlight Troubleshooting ........120 4.16 Main LCD Troubleshooting 121 4.17 Receiver Path 122 4.18 Headset path 124 4.19 Speaker phone path 126 4.20 Main microphone 128 4.21 Headset microphone 130 4.22 Vibrator 132
5. INTRODUCTION 5
1.1 Purpose 5 1.2 Regulatory Information 5
2. Main Features 76
4. BLOCK DIAGRAM 146
6.1 GSM & UMTS...
Operating Instructions - Page 3
...other than your company's employees, agents, subcontractors, or person working on the phones must be performed only by an unauthorized part (for programming and configuring the... limitations on your company's behalf) can be expected to affect the use of the phones or compatibility with your telecommunications services. Therefore, note that unauthorized alternations or repair may affect...
Operating Instructions - Page 4
F. Interference and Attenuation
A phone may be required to the end user. Electrostatic Sensitive Devices
ATTENTION
Boards, which is ESD handling:
sign.
• Service personnel should ground themselves by using a ...
Operating Instructions - Page 29
Important performance requirements include; • Insertion loss . Rejection levels for both paths are critical to avoid degrading receiver sensitivity. the transmitter is outside the receiver passband but at specific frequencies, creating performance variations across its passband. the transmit channel power also leaks into the Rx band. Passband ripple increases the receive ...
Operating Instructions - Page 33
... direct interface to USIM card • Software-controlled power management feature • Integrated Bluetooth 2.0 baseband processor for wireless connectivity to peripherals • High-speed, serial mobile-display, digital interface that optimizes the interconnection cost between
the MSM device and the LCD panel • Receive chain diversity support for WCDMA, providing improved...
Operating Instructions - Page 37
...of the functionality for GPRS support. RF Interface
The RF interface communicates with the mobile station external RF circuits. Inc. All right reserved.
This microprocessor, through the system... data for training and service purposes
- 39 - The RF interface communicates with the mobile station's external RF and analog baseband circuits. Copyright © 2007 LG Electronics. LGE...
Operating Instructions - Page 38
... control of the functionality for QUALCOMM's RTR6275 and PM7540 ASICs.
All right reserved. Wideband CODEC
The MSM7200 device integrates a wideband voice/audio CODEC into the mobile station modem (MSM). LGE Internal Use Only
- 40 - Vocoder Subsystem
The MSM7200 device's QDSP4000 supports AMR,FR,EFR and HR. This microprocessor, through the system...
Operating Instructions - Page 39
... unidirectional and bidirectional transceiver interfaces. LGE Internal Use Only Mode Select and JTAG Interfaces
The mode pins to test digital interconnects between devices within the mobile station during manufacture.
3.8.10. General-Purpose Input/Output Interface
The MSM7200 device has general-purpose bidirectional input/output pins. The USB controller acts as a USB...
Operating Instructions - Page 40
... reference. battery, external charger, adapter, coin cell back-up and signal buffering, and key parameters (undervoltage lockout and crystal oscillator signal presence) are :
PM7540(U304) : Phone power supply MAX8645Y(U702) : LCD Backlight/Flash charge pump
3.9.2. A dedicated controller manages the TCXO warm-up - All right reserved. Power Block
3.9.1. Major power components are...
Operating Instructions - Page 50
... of which are supported by definition, the USB interface is also compliant as specified in USB Specification, Revision 1.1. to provide an efficient interconnect between the mobile phone and a personal computer (PC). Therefore, by the MSM7200. Inc.
Only for training and service purposes Name MSM_USB1_VM MSM_USB1_VP nUSB_OE1 VUSB_5.0V CRADLE_USB_DP CRADLE_USB_DN
Note Data...
Operating Instructions - Page 61
Driving Method : A-Si TFT Active Matrix - 4 bit MDDI(Mobile Display Digital interface) I/F
MSM7200
MDDI I/F MDDI_P_STB_P MDDI_P_STB_M
MDDI_P_DATA_P MDDI_P_DATA_M
GPIO
LCD_RESET FLM(VSYNC) LCD_PWR_ON BL_PWR_ON
2.8 QVGA MDDI LCD
MDDI I/F MDDI_STB+ MDDI_STBMDDI_DT+ MDDI_DT- All right reserved. ...
Operating Instructions - Page 64
... controlled by the CODEC. The integrated CODEC contains all of the required conversion and amplification stages for summing a portion of the Tx audio into the mobile station modem. The CODEC includes a programmable sidetone path for the audio front end. Audio decoder summing and headset switch detection are included. The interface supports...
Operating Instructions - Page 67
... MP3
Device Receiver Mode Loud Mode Headset Loud Mode Loud Mode Headset Loud Mode Headset
Description Receiver Voice Call Speaker Phone Headset Voice Call Speaker Phone Speaker MIDI Bell Headset MIDI Bell Speaker MP3 Headset MP3
[Table 1.13] Audio Mode
Copyright © 2007 LG Electronics. TECHNICAL BRIEF
3.11.8.3. LGE Internal Use ...
Operating Instructions - Page 70
...
MSM7200 (U100-1)
Headset AMP
(U402)
Head_Set
Receiver and Loud Speaker
Analog switch
(U400)
AMP (U401)
MIC
Head_set MIC
Voice Voice + MP3 + MIDI
Voice Call Speaker Phone Mode is routed as below MSM7200 LINE_ON, LINE_OP -> AMP(U401) ->Analog Switch( U400 ) -> Loud speaker
LGE Internal Use Only
- 72 - Inc. Copyright © 2007 LG...
Operating Instructions - Page 74
... & Stylish design - Internal User Memory over 128MB - 1050 mAh (Li-Ion Polymer) - Windows MobileTM 6 Professional - Inc. All right reserved. Stereo Headset & Speaker phone - 72 Poly Sound -
Microsoft Office Mobile
LGE Internal Use Only
- 76 - HSDPA 3.6Mbps - 2.8" QVGA LCD (262K TFT) - Main Features
1. Touch Sensitive User Interface - MP3/AAC/AMR/MIDI/3GP/SMAF...
Operating Instructions - Page 107
...
NO
Check the Key Dome
VMSMC1_1.2V, VMSMC2_1.2V, VMSMP_2.6V, VMSME_1.8V, VTCXO_2.85V, VMSMA_2.6V power up and system reset assert to MSM -> Phone booting and PS_HOLD(D311) assert to PMIC
Start
Battery voltage. Inc. TROUBLE SHOOTING
4.10 Power ON Troubleshooting
Power On sequence of KS20 is : PWR key...
Operating Instructions - Page 110
...
Battery
Charging Procedure - Charging current path - Connect TA or USB Cable - Charging current flows into the battery
Check Point - Connect TA and battery to the phone
Troubleshooting Procedure - Control the charging current by PM7540 IC - Check the charging current Path - Check the battery
LGE Internal Use Only
- 112 - Only for training...
Operating Instructions - Page 122
..., R104 → Analog Switch(U400) → R421, R420 → CN400 → CN602 → R751, R750 → L703, L702 → CN701 → Speaker
Start
Connect the phone to network Equipment and setup call Setup 1KHz tone out
Can you hear the tone? Copyright © 2007 LG Electronics. YES
The sine wave appears...
Operating Instructions - Page 124
... path
MSM7200 HPH_R, HPH_L → C409, C406 → HEADSET AMP(U402) → R405, R404 → FB301, FB300 → CN300 (MMI Connector)→
Start
Connect the phone to network equipment and setup call. Setup 1KHz tone out and insert headset.
YES
NO
Check an U100 SMT status by X-ray Exchange U100 or...
Operating Instructions - Page 126
...at SPKR_N,SPKR_P SUB PCB
YES
NO
The sine wave appears at
NO
SPK+? TROUBLE SHOOTING
4.19 Speaker phone path
MSM7200 LINE_OP,LINE_ON → C402/R403, C401/R402 → Speaker AMP(U401) → ...8594; CN602 → R751, R750 L703, L702 → CN701 → Speaker
Start
Connect the phone to network equipment and setup call Setup 1KHz tone out
Sine wave appears at C402/R403 and C401/R402...
LG Knowledge Base Results
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LG Mobile Phones: Tips and Care - LG Consumer Knowledge Base
... it is high. Keep all caps and covers closed (charger, memory card, and USB) on the phones at all the time. Phone conversations that has a signal. Tips to clean the phone. Article ID: 6278 Views: 12344 Mobile Phones: Lock Codes What are in underground, mountain, or areas where the signal strength is low. Always... -
Washing Machine: How can I save my preferred settings? - LG Consumer Knowledge Base
... Support Contact Us Sitemap Buyers' Guide Jobs LG Recycling Program Commercial Customers Recall Public Notices Privacy Legal | Copyright 2009 LG Electronics. Side by Side ...Email to confirm the settings have been stored. Digital Transition -- -- Optical Drives -- Network Storage Mobile Phones Computer Products -- NAS | Glossary Home LG Service & Support / / Washers This article was: ... -
Chocolate Touch (VX8575) Back Cover Removal and Installation - LG Consumer Knowledge Base
...de la cubierta ocupan las ranuras del teléfono. 2. Pictures LG Dare LG Mobile Phones: Tips and Care Mobile Phones: Lock Codes Pairing Bluetooth Devices LG Dare Deslice la cubierta de la batería...desenganche del teléfono y luego deslícela hasta quitarla. / Mobile Phones Chocolate Touch (VX8575) Back Cover Removal and Installation You will need to remove. Also, always ...
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