LG LAC4710R Скачать руководство пользователя страница 18

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2-13

3-2. PIN DESCRIPTION

Pin

Name in Micom

Name in Model

Enable I/O I/O setted Output Format

Description

P60/SCL0

PEV_CLK

I/O

N-CH

Clock output to TDA7419 for the volume control

P61/SDA0

PEV_DE

I/O

N-CH

Data output to TDA7419 for the volume control

P62

PPWR_MUTE

I/O

N-CH

To Power amp, "MUTE" command output

P63

PAF_MUTE

I/O

N-CH

AF mute

5 P31/TI03/TO03/INTP4

PRMC

I/O

Remocon

input

P64/RD'

PSOFT_MUTE

I/O

CMOS

Direct volume mute signal output

P65/WR0'

PEJECT

I/O

Eject key input

P66/WR1'

PEALA_SW2

I/O

CMOS

EALA control output 2

P67/ASTB

PSECP_CLK

I/O

CMOS

Spectrum analyze clock output to TDA7419

P77/EX23/KR7/INTP11

PSTANDBY

I/O

CMOS

To PowerR amp, "STAND-BY" command output

P76/EX22/KR6/INT10

PDECK_LD

I/O

Deck load SW

P75/EX21/KR5/INT9

PCDP_IBLK

I/O

SubQ ack

P74/EX20/KR4/INTP8

PCDP_VDET

I/O

Vibration detection

P73/EX19/KR3

PCDP_POWER

I/O

CMOS

CDP power on

P72/EX18/KR2

PDECK_INN

I/O

Deck inner SW

P71/EX17/KR1

PDECK_12/8

I/O

Deck 2cm disc detect SW

P70/EX16/KR0

PSLED_CTRL

I/O

CMOS

Deck sled/Loading motor selector

P06/WAIT'

PCDP_FEW

I/O

CMOS

Loading motor loading

P05/CLKOUT

PCDP_REW

I/O

CMOS

Loading motor unloading

EVSS1

Ground Potential for Ports

P80/EX0

PDRV_MUTE

I/O

CMOS

Deck driver IC mute

P81/EX1

PDAC_MUTE

I/O

CMOS

DAC mute

P82/EX2

PCDP_RST

I/O

CMOS

CDP reset

P83/EX3

PCDP_MLD

I/O

CMOS

DSP ACK

P84/EX4

PZERO_MUTE

I/O

DAC zero mute monitor

P85/EX5

PISP

I/O

CMOS

USB Flash upgrade enable

P86/EX6

PUSB_POWER(PBT)

I/O

CMOS

USB power on/BT power on(3.3V Ctrl)

P87/EX7

PUSB_SW

I/O

USB device detect sw

P30/INTP3/RTC1HZ PUSB_RESET

I/O

O CMOS

OTG

reset

EVDD1

Positive power supply for ports

P50/EX8

PUSB_PROTECT

I/O

Protection IC overcurrent detection

P51/EX9

POPT_IN0

I/O

For diode option check, signal 1 or 2 input0

P52/EX10

POPT_IN1

I/O

For diode option check, signal 1 or 2 input1

P53/EX11

POPT_IN2

I/O

For diode option check, signal 1 or 2 input2

P54/EX12

POPT_OUT0

I/O

CMOS

For diode option check, signal 1 output

P55/EX13

POPT_OUT1

I/O

CMOS

For diode option check, signal 2 output

P56/EX14

POPT_OUT2

I/O

CMOS

For diode option check, signal 3 output

P57/EX15

PACC_IN

I/O I

ACC

P17/EX31/TI02/TO02

PACC_OUT

I/O

CMOS

ACC out

P16/EX30/TI01/TO01/INTP5 PVOLA

I/O

CMOS

Encoder volume terminal #A input

P15/EX29/RTCDIV/RTCCL PVOLB

I/O

CMOS

Encoder volume terminal #A input

P14/EX28/RxD3

PUSB_RX/PBT_RX

I/O

Data input for USB/BT

P13/EX27/TxD3

PUSB_TX/PBT_TX

I/O

CMOS

Data output for USB/BT

P12/EX26/SO00/TxD0

PPLL_DO

I/O

CMOS

Data output for PLL IC

P11/EX25/SI00/RxD0

PPLL_DI

I/O

Data input for PLL IC

P10/EX24/SCK00'

PPLL_CLK

I/O

CMOS

CLK output for PLL IC

AVREF1

• A/D converter reference voltage input
• Positive power supply for P20 to P27, P150 to

P157, and A/D converter

P110/ANO0

PLINE_MUTE

I/O

CMOS

Line out mute

P111/VNO1

PTUNER_MUTE

I/O

CMOS

Tuner <----> VR IC mute

AVREF0

• D/A converter reference voltage input
• Positive power supply for P110, P111, and D/A converter

LGE Internal Use Only

Содержание LAC4710R

Страница 1: ...IVER SERVICE MANUAL MODEL LAC4710R CAUTION BEFORE SERVICING THE UNIT READ THE SAFETY PRECAUTIONS IN THIS MANUAL MODEL LAC4710R SERVICE MANUAL P NO AFN35097886 OCTOBER 2007 Website http biz lgservice com Internal Use Only ...

Страница 2: ...6 6 IC901 PT6523 2 17 BLOCK DIAGRAM 2 19 CIRCUIT DIAGRAMS 2 21 1 MAIN CIRCUIT DIAGRAM 2 21 2 CDP CIRCUIT DIAGRAM 2 23 3 FRONT CIRCUIT DIAGRAM 2 25 4 AUX CIRCUIT DIAGRAM 2 27 5 LCD LIGHTING CIRCUIT DIAGRAM 2 28 PRINTED CIRCUIT DIAGRAMS 2 29 1 MAIN P C BOARD 2 29 2 CDP P C BOARD 2 33 3 FRONT P C BOARD 2 34 4 AUX P C BOARD 2 35 5 LCD LIGHTING P C BOARD 2 35 SECTION 3 EXPLODED VIEWS 1 CABINET AND MAIN...

Страница 3: ...precautions are indicated or printed on the cabinet chassis or components When servicing follow the printed or indicated service precautions and service materials 2 The Components used in the unit have a specified conflammability and dielectric strength When replacing any components use components which have the same ratings Components marked in the circuit diagram are important for safety or for ...

Страница 4: ...n propelled chemicals These can generate electrical charges sufficient to damage ESD devices 6 Do not remove a replacement ESD device from its protective package until immediately before you are ready to install it Most replacement ESD devices are packaged with leads electrically shorted together by conductive foam aluminum foil or comparable conductive materials 7 Immediately before removing the ...

Страница 5: ...tion 1kHz 55dB RADIO SECTION FM Frequency Range 65 74 87 5 107 9 or 87 5 108MHz S N Ratio 53dB Distortion 0 7 Usable Sensitivity 12dBµV AM MW Frequency Range 520 1720 or 522 1620kHz S N Ratio 45dB Distortion 1 0 Usable Sensitivity 28dBµV AUX SECTION Frequency Response 20Hz 20kHz S N Ratio 80dB Distortion 0 1 Channel Separation 1kHz 45dB Max Input Level 1kHz 1 1V 35KΩ Copyright 2007 LG Electronics ...

Страница 6: ...ower IC Ground IC801 1 2 8 13 18 24 Checked the Power IC Control IC801 4 22 IC401 3 10 Checked the Power IC Signal in out IC801 11 12 14 15 IC801 3 5 7 9 17 19 21 23 Checked the Power IC Mute IC801 22 Checked the Power IC Standby IC801 4 Checked the Power IC Ripple IC801 10 Checked the Main Connector CN801 1 2 3 4 8 9 12 13 6 No Line out signal Checked the E VR Vdd IC301 10 IC601 16 Checked the E ...

Страница 7: ...anged IC We request that you send it to HQ RL RL RL 11 9 8 7 5 2 3 17 18 19 21 24 23 12 15 14 1 20 6 RL IN1 IN2 IN3 IN4 13 C1 C1 C1 C1 PRE GND 10 25 22 OUT1 PW GND1 OUT1 OUT2 PW GND2 OUT2 OUT3 PW GND3 OUT3 OUT4 PW GND4 OUT4 TAB VCC1 VCC2 C 3 C 4 C 2 PRE GND PW GND STBY RIP MUTE C 5 16 C6 4 OFF SET DET MUTE PLAY 5 V R1 AC GND Stand by Power Sound Voltage ON OFF OFF 0 to 1 5 OFF ON ON 3 5 to 6V Mute...

Страница 8: ...Vdd IC301 4 9 IC401 64 Checked the LED LD901 LD923 5 Don t moved Level bar Checked the Level Meter control IC401 54 57 6 Not avaliable to Dimmer control Chekced the Dimmer control CN801 11 Q303 Q304 IC301 4 9 No Symptom Check Point Location No TUNER FUNCTION 1 Not available to Tuner Checked the Tuner Vdd TU101 4 16 IC301 10 IC401 39 Q350 Q351 Checked the Tuner Ground TU101 3 5 10 17 Checked the PL...

Страница 9: ... IC506 72 YES NO Checked the CD DSP reset X503 YES NO Checked the CD DSP X tal CN509 15 YES NO Fig 3 4 Fig 1 2 Fig 1 2 Checked the disc in load switch CN509 12 17 IC513 12 14 15 YES NO Checked the loading motor control CN509 10 YES NO Checked the 8 12cm sens switch 2 CD PART A B C Copyright 2007 LG Electronics Inc All right reserved Only for training and service purposes LGE Internal Use Only ...

Страница 10: ...ontrol IC506 25 IC513 17 18 YES NO Checked the focus control IC506 25 R517 YES NO Checked the focus error level out FE mon IC506 54 YES NO Checked the PLL locking FSEQ IC506 41 16 YES NO Checked the RF signal out check IC506 21 IC513 8 5 YES NO Checked the spindle motor control PN504 5 6 YES NO Checked the TRVP control IC506 24 IC513 19 20 YES NO Checked the tracking control A Copyright 2007 LG El...

Страница 11: ... NO Checked the Eject key YES D6 D5 NO Checked the loading motor control B CD no sound OK YES IC506 56 59 NO Checked the DSP signal out YES C Copyright 2007 LG Electronics Inc All right reserved Only for training and service purposes LGE Internal Use Only ...

Страница 12: ...ding REW FEW SLED CON LOADING IN IC504 PIN13 IC504 PIN14 R5091 SLED CON R5465 LOAD IN SL SL SLED CON LOADING IN Fig 4 Motor control signal for unloading REW FEW SLED CON LOADING IN IC504 PIN13 IC504 PIN14 R5091 SLED CON R5465 LOAD IN SL SL SLED CON LOADING IN D6 REW D5 FEW R5091 SLED CON R5465 LOAD IN D6 REW D5 FEW R5091 SLED CON R5465 LOAD IN Copyright 2007 LG Electronics Inc All right reserved O...

Страница 13: ...P T T TE Fig 7 Spindle control signal PLLF SP SP SPOUT Fig 8 PD RFOUT Fig 9 CLK REQ DATA PD MD RFOUT LOADING IN IC506 CLK PIN52 IC506 REQ PIN53 IC506 DATA PIN54 CLK REQ DATA IC506 PLLF PIN54 IC504 SP PIN11 IC504 SP PIN12 IC506 SPOUT PIN21 IC506 PD 41 IC506 RFOUT 46 Copyright 2007 LG Electronics Inc All right reserved Only for training and service purposes LGE Internal Use Only ...

Страница 14: ...IN57 IC506 STAT PIN71 IC506 MDATA PIN48 STAT NRST MDATA Fig 12 SLED control SL SL SL IC506 NRST PIN57 IC506 STAT PIN71 IC506 MDATA PIN48 IC504 PIN13 IC504 PIN14 R5091 SLED CON R5465 LOAD IN IC506 MLD PIN58 IC506 MCLK PIN70 IC506 MDATA PIN72 TRVP Copyright 2007 LG Electronics Inc All right reserved Only for training and service purposes LGE Internal Use Only ...

Страница 15: ...EF EXTOUT VBUP DSPOUT CTL 2 2 5V CTL 3 2 5V CTL 4 2 5V 15 FREG F RFREG3 FREG B 13 12 11 10 9 8 7 6 5 4 3 2 1 14 3 5V DBUP CBUP 100uF CVDD 10uF CDSP 10uF CAUDIO 10uF CCD 0 1uF CEXT 10uF CILM 0 1uF CFREG 10uF QFREG RFREG1 RFREG2 DEXT1 DEXT2 C1 100uF C2 0 1uF Copyright 2007 LG Electronics Inc All right reserved Only for training and service purposes LGE Internal Use Only ...

Страница 16: ...ts except VDD pin14 and FREG pin2 3 are switched off when the circuit operates revert to the original state when the temperature drops to a certain level Note3 Overvoltage protection circuit The overvoltage protection circuit surge protector turns off all outputs without Vdd when VB voltage is more than about 21V And the overvoltage protection circuit surge protector turns off Vdd output with othe...

Страница 17: ...CLK O PCDP_DI I PCDP_DO O PFRT_RST O PFRT_OPEN I PFRT_DETECT I PART_TX O PART_RX I PART_EN I PSD_ST I PPLL_CE O PEEPROM_CE O PDIM_IN I PRDS_DI I PPWR O PREMOTE O PTEL_MUTE I PAUDIO_MUTE O PAUX_MUTE O PLIGHT O PDIM_OUT O PEJECT I PQUALTY I PSMETER I PLEVEL_METER I PKEY2 I PKEY1 I AVss PEV_CLK O PEV_CE O PPWR_MUTE O PAF_MUTE O PRMC I PSOFT_MUTE O PEALA_SW1 O PEALA_SW2 O PSPEC_CLK O PSTANDBY O PDECK_...

Страница 18: ...h upgrade enable 27 P86 EX6 PUSB_POWER PBT I O O CMOS USB power on BT power on 3 3V Ctrl 28 P87 EX7 PUSB_SW I O I USB device detect sw 29 P30 INTP3 RTC1HZ PUSB_RESET I O O CMOS OTG reset 30 EVDD1 Positive power supply for ports 31 P50 EX8 PUSB_PROTECT I O I Protection IC overcurrent detection 32 P51 EX9 POPT_IN0 I O For diode option check signal 1 or 2 input0 33 P52 EX10 POPT_IN1 I O I For diode o...

Страница 19: ... detect 75 P145 TI07 TO07 PFRT_RST I O O CMOS Front micom LCD drv reset 76 P144 SO20 TxD2 PCDP_DO I O O CMOS Data output for CDP 77 P143 SI20 RxD2 SDA2 PCDP_DI I O I Data input for CDP 78 P142 SCK20 SCL2 PCDP_CLK I O O CMOS CLK output for CDP 79 P141 PCLBUZ1 INTP7 PFRT_CE I O I Data enable output to front micom LCD drv 80 P140 PCLBUZ0 INTP6 PBEEP I O O CMOS Buzzer output 81 P120 INTP0 EXLVI PEXLVI...

Страница 20: ... step Bass Treble Middle 15dB 15dB 1dB step Tone Pass Input Gain 0 15dB 1dB step Mute Volume 23 79dB dB 1dB step Input Gain 0 15dB 1dB step Mute Input Selector 4 stereo include 1 isolation input AGND FIL AP1 AP2 AN VCC 2 50k 50k 50k 50k 50k 50k 50k 50k Bass fo 60 70 80 100 120 140 160 200Hz Q 0 5 0 75 1 1 25 Middle fo 500Hz 1kHz Q 1 Treble fo 5 7 5 10 12 5kHz 22 21 20 19 18 17 16 15 14 13 12 Copyr...

Страница 21: ...3 C1 C1 C1 C1 PRE GND 10 25 22 OUT1 PW GND1 OUT1 OUT2 PW GND2 OUT2 OUT3 PW GND3 OUT3 OUT4 PW GND4 OUT4 TAB VCC1 VCC2 C 3 C 4 C 2 PRE GND PW GND STBY RIP MUTE C 5 16 C6 4 OFF SET DET MUTE PLAY 5 V R1 AC GND Copyright 2007 LG Electronics Inc All right reserved Only for training and service purposes LGE Internal Use Only ...

Страница 22: ...7 8 9 10 11 12 13 14 15 16 8 54 49 55 50 56 51 57 52 58 53 59 60 61 62 63 64 SG17 SG18 SG19 SG20 SG21 SG24 SG29 SG23 SG28 SG22 SG25 SG30 SG26 SG31 SG27 SG32 SG38 SG33 SG39 SG34 SG40 SG35 SG41 SG36 SG42 SG37 SG43 SG44 SG45 SG46 SG47 SG48 COM2 SG49 COM3 SG50 VDD SG51 INH SG52 VDD1 COM1 VDD2 OSC CE CLK DI VSS Copyright 2007 LG Electronics Inc All right reserved Only for training and service purposes ...

Страница 31: ...2 33 2 34 2 CDP P C BOARD 3 FRONT P C BOARD TOP VIEW BOTTOM VIEW Copyright 2007 LG Electronics Inc All right reserved Only for training and service purposes LGE Internal Use Only ...

Страница 33: ...282 277 278 271 273 283 258 255 257 254 256 252 253 453 250 457 251 454 270 264 265 285 266 284 261 260 274 272 280 LCD1 279 275 262 267 269 268 453 Accessory Loc No Loc No Loc No Loc No Loc No Loc No 835 801 808 818 850 900 450 CDP A26 458 458 A41 CABLE1 Copyright 2007 LG Electronics Inc All right reserved Only for training and service purposes LGE Internal Use Only A49 ...

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