LG KG270 Support and Manuals
Get Help and Manuals for this LG item
LG KG270 Videos
??????? ??? LG KG270/mg160/kg275/kg271/kg278/kg276/kp105/kp110/kp106
Duration: :13
Total Views: 8
Duration: :13
Total Views: 8
Popular LG KG270 Manual Pages
Service Manual - Page 2
... 69 4.11. Receiver Trouble 71 4.12 Speaker Trouble 73
4.13 Headphone Trouble 75 4.14 Charging Trouble 77 4.15 FM Radio Trouble 79
5. BLOCK DIAGRAM 88
7. PCB LAYOUT 93
9. EXPLODED VIEW & REPLACEMENT PART LIST ..... 113
12.1 Exploded View 113 12.2 Replacement Parts 115 12.3 Accessory 124
-3- ENGINEERING MODE 95
9.1 About Engineering Mode 95 9.2 Access Codes 95 9.3 Key...
Service Manual - Page 4
... is faulty and possibly causing harm or interruption in this model must be performed only by an unauthorized part (for example, persons other than your company's employees, agents, subcontractors, or person working on this manual. C. 1. System users are may void any charges that unauthorized alternations or repair may affect the regulatory status of own system. INTRODUCTION...
Service Manual - Page 5
...; Use a suitable, grounded soldering iron.
• Keep sensitive parts in this manual are made to the factory, use the protective package as defined by using a wrist strap when exchange system boards.
• When repairs are for illustrative purposes only; Notice of Radiated Emissions
This model complies with anti-static mat which contain Electrostatic Sensitive...
Service Manual - Page 9
... DTMF Audio
Cell Broadcast Phone Book
Automatic Network Selection Manual Network Selection Network Service Status DTMF Signaling DTMF Enable & Disable ... by alphabetic or numeric order Last Number Dialed Last Number Missed Last Number Received Copy & Move Fixed Dial Number Barred Dial Number Service Dial Number Email Entry Picture ID Video Caller ID My Name card
O O O O O O 6 Level (Include Mute) ...
Service Manual - Page 10
...Read Message
O
Write and Edit Message
O
Send and Receive Message
O
Reply to 3 calls 3 V only Service Provider / Network Lock Class 1, 2, 3
Not Support EMS
Normal, Fax, National Paging, Email, X400, ERMES, Voice
- 11 - All Incoming Calls, No ...
Message Overflow Indicator
O
Message Center Number
O
Help Menu
X
Specification
Etc.
2. PERFORMANCE
Function
Detail Item
Supp.
Service Manual - Page 14
... the need for voice-centric Mobile Phone applications. The operating temperature range from -40C to -battery Power Management Unit. GSM850 / GSM1800 2. The transceiver consists of E-GOLDvoice
The E-GOLDvoice is optimized for an external Power Management Unit. E-GOLDvoice is designed as a single chip solution that integrates the digital, mixed-signal, RF functionality and a direct-to...
Service Manual - Page 19
... personalization checks with a special driver for the complete mobile phone application. The TEAKLite ROM can be loaded. The integrated PMU is supported with IMEI and
SIM-lock protection
- 20 - The charger control supports hardware controlled pre-charging and software controlled charging. TECHNICAL BRIEF
3.1.12 C166 Debug Concept
The debugging of the Flash code is based on a public...
Service Manual - Page 21
... (SKY77318)
Figure. 3-2 SKY77318 FUNCTIONAL BLOCK DIAGRAM The SKY77318 Power Amplifier Module (PAM) is encapsulated with an internal current-sense resistor. The PAM also supports Class 12 General Packet Radio Service (GPRS) multi-slot operation. The assembly is designed in a low profile (1.2 mm), compact form factor for 50 Ω input and output impedances...
Service Manual - Page 28
...keypad supports two scan modes: • By default, the keypad is connected to a 5x5 scan matrix (5 input and 5 output pins)
The scan mode should be determined at the very beginning of the system start because changes are not allowed later.
- 29 - 3. TECHNICAL BRIEF
3.7 KEYPAD...Interface
The keypad interface is a 4x6 scan matrix (4 input and 6 output pins). • To set the keypad to the ...
Service Manual - Page 33
... to the TEAKlite DSP bus and a set up to -A conversion, postfiltering, and final amplification are performed on the analog part. The data path for the respective sampling rates are implemented in the voiceband part of the analog control register. The ringer functionality is filtered by DSP firmware. Signals EPp1 EPn1 EPpa1 Loud1 Loud2 MICP1 MICN1...
Service Manual - Page 38
...
In E-GOLDvoice, the 16bits demultiplex X-bus interface is set to the MCU via a special 'Ready' function. Up to 3 external CS signals can be generated to very slow memories is not supported). 3. Access to save external glue logic. NOR Flash memory is supported. (The NAND Flash memory is supported via its external bus interface. Up to 8MBytes of...
Service Manual - Page 42
...edges. The receive (RX) section integrates a low noise amplifier (LNA) supporting the worldwide FM broadcast band (76 to optimize sensitivity and rejection of ...drivers, internal feedback network (fixed -1.5V/V gain), undervoltage lockout (UVLO)/shutdown control, charge pump, and comprehensive click-and-pop suppression circuitry.
- 43 - The device acknowledges the address by setting...
Service Manual - Page 46
4. TROUBLE SHOOTING
RX Trouble
TEST POINT
SW400 U400
FL400 FL401
X101
U102
CHECKING FLOW
START
Setup Test Equipment Cell Power :-74d Bm
GSM850 CH190 PCS CH660
Check point. DCXO(X101)
Check point mobile SW & ASM & SAW Filter(SW400,F L400,FL401)
Re-Download S/W & CAL
- 47 -
Service Manual - Page 52
TROUBLE SHOOTING
RX Trouble
TEST POINT
SW400
Pin 1 Pin 2
U400
Pin 3
CHECKING FLOW
Check Pin 1, 2 of SW400
with RF Cable
FL400
Pin 7
FL401
U102
Signal is OK.
Yes
No
Replace ASM
(FL400)
Mobile SW & ASM is OK ? Yes
N o Replace Mobile SW (SW400)
Check Pin 1,2 Yes
Control
No
Signal is normal ? Yes
Check ULC2 (U102)
Pin 3,7 Signal is
OK ? Check Antenna.
- 53 - 4.
Service Manual - Page 69
TROUBLE SHOOTING
Checking Flow
Make a call
R300.VMIC=2.5V
Check voltage level
NO
of R300
YES
Replace PCB
Check component
NG
Re-solder or
status around MIC
replace the Component
OK
NG Check status of MIC
Re-solder or replace Microphone
OK
Check the voltage Level
NG
of MIC_P
MIC_P= about 1.2~1.5V DC
with a few tens mV
OK
Replace PCB
Change Microphone
- 70 - 4.
LG KG270 Reviews
We have not received any reviews for LG yet.