lge_47lx6500 training_manual.pdf

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Main JK8700 Wireless Media Box Dongle Jack Voltage and Diode Check)ain JK8700 Wireless Media Box Dongle Jack Voltage and Diode Check)

JK8700 Jack "MAIN Board" To "Wireless Dongle"

Pin Label STBY Run Diode Check

1-6 *20V 0V 21.7V Open



7 Detect 0V 0.3V 2.8V

8 Interrupt 0V 3.3V Open

9 Gnd 0V Gnd Gnd

10 n/c 0V 3.3V Open

11 Gnd 0V Gnd Gnd

_ . .

13 I2C_SDA 0V 3.3V 1.04V

14 Gnd 0V Gnd Gnd

15 Wireless_RX 0V 3.3V 1.8V

JK8700Jack

1

16 Wireless_TX 0V 3.3V 1.8V

17 Gnd 0V Gnd Gnd

18 IR 0.67V 3.3V Open

Voltages with Wireless Media Box Dongle plugged in.(Use Dongle side to read voltages. Remove cover).*20V Switched from Q8701 Drain Back side of the board.

Diode Mode values takenwith all Connectors

-

February 2011 LCD TV 47LX6500100

urne on y ron s e o e oar .Q8700 turned on by Microprocessor pin 38.

emove

Main P7802, P7803 to Tain P7802, P7803 to T-CON/3D board Voltage and Diode Check)ON/3D board Voltage and Diode Check)

P7802 "Main" To "T-CON/3D" P803 P7802

Pin LABEL SBY Run Diode Check1 PANEL VCC 0V 12 18V 2 2V



1 PANEL_VCC 0V 12.18V 2.2V

2 PANEL_VCC 0V 12.18V 2.2V

3 Gnd Gnd Gnd Gnd

4 Gnd Gnd Gnd Gnd

1

P7803 "Main" To "T-CON/3D" P807

Pin LABEL SBY Run Diode Check

1 Gnd Gnd Gnd Gnd

P7803

2 E_TCK 0V 0V Open

3 E_TDO 0V 3.29V Open

4 E_TMS 0V 3.29V Open

5 E_TDI 0V 3.29V Open

6 Gnd Gnd Gnd Gnd1


Diode Mode values taken with all Connectors Removed

Mainain P24012401 andnd P88008800 Connectors Voltage and Diode Check)onnectors Voltage and Diode Check)

" " " "

P2401

-

Pin LABEL SBY Run Diode Check



1 +5V_EMITTER 0V 5.11V 2.9V

2 Gnd Gnd Gnd Gnd

3 3D_SYNC 0V 0.03V 2.59V

P8800 "Main" To "Speaker Left and Right" P8800

1 SPK-R(-) 0V 10.86V Open

2 SPK-R(+) 0V 10.86V Open

3 SPK-L(-) 0V 10.86V Open

1

4 SPK-L(+) 0V 10.86V Open



Main Board Audio Voltage Checksain Board Audio Voltage ChecksUse speaker outputs to test for defective Audio Amp Note:

(Normal, ½ Audio B+ Input 10.86V)This general information covers;• IC8801 Front Audio Out)

• P8800 Audio OutQ8800

Amp MuteAmp 1.8V

Pin 12, 13, 16



MutePin 25 IC8800

.

Audio B+21.7V

-

Note: 3.3V input (pin 3) from IC8005IC8801

Audio Amp

3.3V NormalPin 8

Audio B+

(1). _ orma egu a or

21.7VPins 49-52

Active Low.

Location:Top left of IC8801.Normal 3.3V Collector to


Pin 25 of all three ICs.

FRONT IR, INTELLIGENT SENSOR and MOVING LED) SECTIONRONT IR, INTELLIGENT SENSOR and MOVING LED) SECTION

The Intelligent Sensor and IR board (located on the bottom left as viewed from the rear) contains theIR (Infrared Remote Sensor) and the Intelligent Sensor. This board also connects with the Soft Touch

Key Board and the Center LG Logo board. The Center LG Logo lights after power on and the pictureappears. Then dims down in about 2 seconds. At power off, it does the reverse. It will remain on



appea s. e d s dow about seco ds. t powe o , t does t e eve se. t w e a owhen the set is on if set up in the Customer’s Menu.

The IR board receives it operating B+ via J1 pin 6 (STBY 3.5V) 3.5V in STBY and 3.31V in Run.

The IR (Infrared) remote receiver can be measured (1.57V in STBY) at pin 9 of connector J1 or P8200on the Main board in Stand-By. During run pin 9 reads (1.52V).

The IR pulses (1.6V p/p) J1 pin 9 are sent to P8200 on the Main board and on to the Microprocessor(IC8101) via pin 16.

The Intelligent Sensor communicates with the Micro/Video Processor IC900 BCM Chip via clock and

data lines SCL1 and SDA1 arriving on connector J1 from P8200 pins 1 and 2 on the Main board.

The Front Power LEDs are controlled by these same Clock and Data lines which communicate withthe LED Driver IC on the IR board.

The Key board is routed to the IR board via J2 and output on J1 Key 1 and Key 2 lines,

• Key 1 pin 4 (3.31V)• Key 2 pin 5 (3.29V)Arriving at P8200 pins 4 and 5 on the Main Board then to the Microprocessor 25 and 26 lines.


Front IR Board Connections Identified)ront IR Board Connections Identified) p/n EBR64966201

J2 To Soft TouchKe Board

IR Sensor



J3 To LG LOGOBoard

J1 To Main BoardKey Board problems may be easilychecked by removing the J2 Connectorand trying the customer’s remote.


Back View

Front Board Connectorsront Board Connectors J1 and J31 and J3 Voltage andoltage and Diodeiode Checkheck

J1 "Front IR" to P8200 " MAIN" J3 "Front IR" to “LOGO Board"

Pin Label STBY RunDiodeCheck

1 1SCL 3 5V 3 34V Open

Pin Label STBY RunDiodeCheck

1 3 5V ST 3 5V 3 31V 2 59V



1 SCL 3.5V 3.34V Open

2 1SDA 3.5V 3.34V Open

1 3.5V_ST 3.5V 3.31V 2.59V

2 Gnd Gnd Gnd Gnd

3 Gnd Gnd Gnd Gnd

4 KEY 1 3.31V 3.31V Open

5 KEY 2 3.29V 2.29V Open

3 *LOGO 1.46V 0.55V Open

4 Gnd Gnd Gnd Gnd

* 1.46V when LOGO Off. 0.55V On.. _ . . .

7 Gnd Gnd Gnd Gnd

8 LED_LOGO 0V 0V Open

9 2IR 1.57V 1.52V 2.88V

10 Gnd Gnd Gnd Gnd

11 +3.3V_Normal 0V 3.31V Open

12 LED_R/BUZZ 0V 0V 0.8V

u ses on y presen w en n e gen ensor sturned on. (3.7V p/p)

(2)

IR pulses (2.5V p/p)



Front Board Connectorsront Board Connectors J22 Key Board Voltage, Resistance andey Board Voltage, Resistance and Diodeiode Checkheck

Resistance when key is pressed" " " "

Pin Label STBY Run Diode Check1 3 5V ST 3 5V 3 33V 2 47V

BUTTON KEY LINE RESISTANCENo Key Key 1 15 71M



1 3.5V_ST 3.5V 3.33V 2.47V No Key Key 1 15.71M

VOL+ Ke 1 1.1M. .

3 Gnd Gnd Gnd Gnd

4 KEY 1 3.31V 3.31V Open

VOL- Key 1 1.9M

ENTER Key 1 86.6K

MENU Ke 1 478.3K. .

6 Gnd Gnd Gnd Gnd

7 LED drive 3.5V 3.34V Open No Key Key 2 15.49M

CH+ Key 2 1.1M . .

CH- Key 2 1.9M

INPUT Key 2 86.6K

POWER Key 2 478.3K



INVISIBLE SPEAKER SECTIONNVISIBLE SPEAKER SECTION

The 47LX6500 contains the 4 Magnet Invisible Speaker system.

Full Range Speaker p/n EAB60961501

The Full Range Speakers point downward, so there is no front viewable speaker grill or air ports.



Side ViewSpeaker Terminals Speaker Terminals

Back View

Speaker Terminals Speaker Terminals


INTERCONNECT DIAGRAM 11 X 17 FOLDOUT SECTION)NTERCONNECT DIAGRAM 11 X 17 FOLDOUT SECTION)

This section shows the 11X17 foldouthis section shows the 11X17 foldout Interconnect Diagram) forInterconnect Diagram) for



thehe 47LX6500 Training7LX6500 Training Manual.anual.

The Adobe version of this Training M anual allows the viewer tohe Adobe version of this Training M anual allows the viewer tozoom in and out making reading of the small text easier.oom in and out making reading of the small text easier.

When printing use11hen printing use11 X 1717 paper sizeaper sizehen printing, use11hen printing, use11 X 1717 paper size.aper size.




Q409

Q408 Q407 Q406Q404

Q405

Q402

Q403

V2a

V2b

V2c

V1c

V1b

V3c

V3b V3a

GndGndGnd

Gnd

47LX6500 Power Supply EAY60803402 Inverter Section47LX6500 Power Supply EAY60803402 Inverter SectionP702 on the Inverter to SMSP

Pin Label Run21 V2a 1V~35V20 V2b 1V~35V19 V2c 1V~35V18 V1c 1V~35V17 V1b 1V~35V16 V1a 1V~35V15 V4a 1V~35V14 V4b 1V~35V

142V

n/c

n/c

*1V~35V LED Drive

P204 to Panel

Pin Label12 142V11 n/c

Gnd

Drive Sig 1.96V

Q401~Q412

3

1

2To Backlight LE

Block1V (Bright)~35V (



Q702

Q401Q412Q411

Q410

V1aV4aV4b

V4c

5.02VQ703

1.7V

5.02V

5.02V

D245

2 0 0 V

2 5 u F

+ -

2 0 0 V

2 5 u F

2 0 0 V

2 5 u F

2 0 0 V

2 5 u F

+ -

2 0 0 V

2 5 u F

2 0 0 V

2 5 u F

0.16V5.0V

0.16V

3.2V5.0VGnd

December 2010

The drivers Q401~Q412 ground t(12 Total). If a block is not lighting af

error line will go high. 116V will bebottom pins of P204 and P205 (D245 ground the top case of the driver to thto turn it on. If the block turns on, th

problem.

Local Dimming OnL-DIM (SIN)

Local Dimming Off L-DIM (SIN)

3.3V p/p V-Sync Signal

3.15V p/p

3.15V p/p

Pin 23 P201 or Pin 3 P702

2.1V p/p SCLK Signal

100uSec

100uSec

14 V4b 1V 35V13 V4c 1V~35V12 V3c 1V~35V11 V3b 1V~35V10 V3a 1V~35V9 LED FB 1.37V

8 5.2V 5.07V7 V-sync 0.02V6 DRV_On 2.98V5 SCLK 0.16V4 Gnd Gnd3 SIN 3.23V2 PWM 0.38V~3.3V*1 ERROR 0V

142V

142V

142V

n/c

/c

n/c

n/c

n/c

*1V~35V LED Drive

*1V~35V LED Drive

*1V~35V LED Drive

n/c

C246 C247

11 n/c10 V29 V2b8 V27 n/c

6 n/c5 V14 V1b3 V12 n/c1 142V

116V whenRL_ONarrives.

If the Error Line goes high (3.5V), the Inverter shuts off. An open line on any of the four 142V lines to the panel or anopen on any of the 12 LED block ground return path will causean error. Detection takes 10 seconds before turn off.

142V AfterINV_DRV

arrives.

B+ Sourcefor the Backlights

142V

1V~37V variesWith Backlight

brightness

LED Drive Si

34.5V p/

WaveformTaken

InStandardPix Mode

Pin 20 P201 or Pin 5 P702Pin 23 P201 or Pin 3 P702

Pin 16 P201 or Pin 7 P702



QIC701IC306IC202 1) Gnd2) 3.2V3) 0.09V4) 0.09V5) 1.8V6) 3.34V7) 1.18V8) 0.89V

IC304 1) 0.75V2) 5.0V3) Gnd4) 0V5) 2.5V6) 5.0V7) 7.55V8) 11.36V9) 11.36V

1) n/c2) 2.5V3) 2.51V4) n/c5) n/c6) 1.81V7) 0.81V8) Gnd

IC307 1) n/c

1) Gnd2) 11.68V3) 5.26V4) 0.73V5) 0.58V6) 1.97V7) 0.59V8) 1.20V9) Gnd

IC600

1) 5.96V2) 6.03V3) 3.15V4) 0.17V5) 2.72V

25) 11.38V26) 11.38V27) 11.07V28) 0V29) 4.24V

Q803

EB

C

Q804

EB

C

B) 2.52VE) 2.52VC) 2.27V

B) 2.52VE) 2.52VC) 2.27V

+1.8VDDR

Reg

DC-DCConv+2.5V

VQReg

1V2Reg

DC-DCConvFor

HVDD

+T

47LX 6 500 T-CON/3D Component Voltages



IC301 Q

IC203

IC310

IC700

IC801

IC309

IC308

1) Gnd2) 3.27V3) 0.89V4) 0.9V5) 1.8V6) 3.34V7) 1.8V8) 0.9V

1) 11.41V2) 3.35V3) 3.35V4) 8.77V5) 3.11V6) 0.81V

7) 5.02V8) Gnd

IC302 1) 0.8V2) Gnd3) 3.33V4) 4.26V5) 3.3V6) 1.08V

7) 1.08V8) 3.0V

10) 11.36V11) 11.36V12) 2.55V13) Gnd14) Gnd15) 2.55V16) Gnd17) Gnd18) Gnd19) Gnd20) 2.5V21) 2.5V22) n/c23) 0V24) 2.5V

25) n/c26) Gnd27) 1.13V28) 10.99V

IC305 1) 0.8V2) Gnd3) 3.32V4) 4.32V

5) 3.3V6) 1.22V7) 1.22V8) 2.98V

IC307 1) n/c2) 2.49V3) 2.51V4) n/c5) n/c6) 1.81V

7) 0.81V8) Gnd

1) n/c2) 2.47V3) 2.49V4) n/c5) n/c6) 1.8V7) 0.8V

8) Gnd

1) Gnd2) 3.26V3) 0.89V4) 0.9V5) 1.8V6) 3.34V7) 1.8V8) 0.9V

1) 11.41V2) 2.53V3) 2.53V4) 7.97V5) 3.11V6) 0.8V7) 5.07V8) Gnd

10) 5.20V11) 1.40V12) 13.1V13) 8.10V14) 11.68V

6) 3.3V7) 0V8) 25.6V9) 24.7V10) 1.26V11) Gnd12) 5.54V13) 0V14) 0V15) Gnd16) 0V17) 1.26V18) 4.24V19) Gnd20) Gnd

21) 1.27V22) 11.45V23) 3.4V24) 3.4V

30) 1.9V31) 0.59V32) 3.3V33) 3.13V34) 0V35) 0V36) 0V37) 11.33V38) 11.37V39) n/c40) n/c41) 1.27V42) 16V43) 5.96V44) 5.96V

45) 5.96V46) 5.96V47) Gnd48) 5.97V

1) 0.59V2) 3.3V

3) 3.3V4) 0V5) 4.26V6) Gnd7) 1.8V8) 7V9) 2.7V10) 4.78V11) 8.47V12) 3.33V

13) Gnd14) 3.6V

15) 0.12V16) 5.21V17) 0.6V18) 1.13V19) 1.18V20) Gnd21) 11.4V22) 0.56V23) 0.81V24) 0.9V

1) 8.01V2) 15.7V3) 15.7V4) 14.05V5) 13.35V6) 12.27V7) 11.07V8) Gnd9) 16.02V10) 10.28V11) 8.31V12) 7.72V13) 3.33V14) 3.33V15) 3.33V16) Gnd17) 0V18) Gnd19) 4.94V

20) 3.75V21) 2.67V22) 16.02V23) 0V24) Gnd25) 0.27V26) 0.27V27) 0.25V28) 5.96V

D

E B

C

Q1001

E

BC

Q1002

EB

CQ1003

E

BC

Q1004

E

CB

Q906

B) 0.6VE) GndC) 0.02V

B) 0.61VE) GndC) 0.03V

B) 0.0VE) GndC) 1.9V

B) 0VE) GndC) 1.97V

B) 0.59VE) GndC) 0.02V

B) 0.02VE) GndC) 3.33V

+1.8VDDRReg

+1.8VDDRS

Reg

+3.3VReg

+1.0VVDCReg

1V2

Reg

DDRVTTReg

2V5Reg

For +3.3VTCON

DataBuffer +1.8V

DDRSReg

DC-DCConv

Q907EB

C

47LX65Conclusion



ConclusionPage

This concludes the47LX6500training session.

lge_47lx6500 training_manual.pdf

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