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LG 21FS7RG Service Manual
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LG 21FS7RG Service Manual

LG 21FS7RG Service Manual

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P/NO : 38289S0050K
COLOR TV

SERVICE MANUAL

CHASSIS : MC-059C
MODEL : 21FS7RG/RE/RGG
CAUTION
BEFORE SERVICING THE CHASSIS,
READ THE SAFETY PRECAUTIONS IN THIS MANUAL.
Nov., 2007
Printed in China
Internal Use Only
website:http://biz.LGservice.com
21FS7RG/RE/RGG-TS

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Summary of Contents for LG 21FS7RG

  • Page 1: Service Manual

    Internal Use Only website:http://biz.LGservice.com COLOR TV SERVICE MANUAL CHASSIS : MC-059C MODEL : 21FS7RG/RE/RGG 21FS7RG/RE/RGG-TS CAUTION BEFORE SERVICING THE CHASSIS, READ THE SAFETY PRECAUTIONS IN THIS MANUAL. Nov., 2007 P/NO : 38289S0050K Printed in China...

  • Page 2: Table Of Contents

    PRINTED CIRCUIT BOARD ..............15 TROUBLE SHOOTING ................17 BLOCK DIAGRAM ...................21 EXPLODED VIEW ..................22 EXPLODED VIEW PARTS LIST ..............23 REPLACEMENT PARTS LIST..............24 Copyright©2007 LG Electronics.Inc. All right reserved. LGE Internal Use Only - 2 - Only for training and service purposes.

  • Page 3: Safety Precautions

    WATER PIPE, CONDUIT etc. component failure. To Instrument’s 0.15uF exposed METALLIC PARTS 1.5 Kohm/10W Copyright©2007 LG Electronics.Inc. All right reserved. LGE Internal Use Only - 3 - Only for training and service purposes.

  • Page 4: Description Of Controls

    7. PSM (Picture Status Memory) recalls your preferred picture setting. 8. FAVOURITE selects a favorite programme. Copyright©2007 LG Electronics.Inc. All right reserved. LGE Internal Use Only - 4 - Only for training and service purposes.
  • Page 5 COLOURED BUTTONS : These buttons are used for teletext (only TELETEXT models) or programme edit. SSM/ SLEEP FAVOURITE Copyright©2007 LG Electronics.Inc. All right reserved. LGE Internal Use Only - 5 - Only for training and service purposes.

  • Page 6: Specifications

    : 0 ~ 40 deg Humidity : ~ 85 % Storage Environment Temp : -20 ~ 60 deg Humidity : ~ 90 % Copyright©2007 LG Electronics.Inc. All right reserved. LGE Internal Use Only - 6 - Only for training and service purposes.
  • Page 7 Chinese/ English China English/ Russia English/ Indonesia/ Thai/ Vietnam East-Asia Input TV/ AV1/ AV2/ Component Child lock On/ Off Etc. Sleep Review Copyright©2007 LG Electronics.Inc. All right reserved. LGE Internal Use Only - 7 - Only for training and service purposes.

  • Page 8: Adjustment

    4-1. Adjustment of Screen Manually (Using SVC Remote Control) 2. Notes 1) Input in the 75ohm cable LG standard signal(Digital Pattern, 1) Because this is a cold chassis, it is not necessary to use an 480NC). isolation transformer. However, operating it using a 2) Press the “ADJ’...

  • Page 9: White Balance Adjustment

    6-3. Automatic adjustment 8-1. Adjustment Preparation 1) Adjust the using Auto White Balance Meter. 1) Receive the LG standard Mono scope pattern(CH14). 2) Enter CPU OFF Mode by pressing “IN-START” & “MUTE” 2) Set the picture condition on “APC ON”(CLEAR) mode.
  • Page 10 SCART PRE SCART PRESCALER : Refer to <TABLE 1> A2 FM TH A2 PRESCALER FIRST TH MONO THRESHOLD ZWT TH A2 THRESHOLD Copyright©2007 LG Electronics.Inc. All right reserved. LGE Internal Use Only - 10 - Only for training and service purposes.
  • Page 11 A2 FM TH A2 PRESCALER FIRST TH FIRST TH MONO THRESHOLD MONO THRESHOLD ZWT TH A2 THRESHOLD ZWT TH A2 THRESHOLD Copyright©2007 LG Electronics.Inc. All right reserved. LGE Internal Use Only - 11 - Only for training and service purposes.
  • Page 12 0 / 1 Unnecessary OVER MO LE OVER.MOD.LEVEL 0 ~ 15 VP52 0 / 1 Unnecessary VP53 TINT TH Tint Through Copyright©2007 LG Electronics.Inc. All right reserved. LGE Internal Use Only - 12 - Only for training and service purposes.
  • Page 13 VP 108 OSD CONT Unnecessary VP 94 SYNC SS Unnecessary VP 109 OS POS Unnecessary VP 95 GY AMP Unnecessary Unnecessary Copyright©2007 LG Electronics.Inc. All right reserved. LGE Internal Use Only - 13 - Only for training and service purposes.
  • Page 14 “R” channel of RCA JACK. 12-3. Signal, Sound Adjustment Condition (1) Necessary parts and instrument - Adjustment remote control(with signal, sound check button) * LG standard, DATA CODE FC(h) FD(h) (2) Checking 1) Received US30CH standard signal. 2) Check CONTRAST, BRIGHTNESS, COLOR, TINT, SHARPNESS by pressing the Signal Check button continuously.

  • Page 15: Printed Circuit Board

    PRINTED CIRCUIT BOARD MAIN Copyright©2007 LG Electronics.Inc. All right reserved. LGE Internal Use Only - 15 - Only for training and service purposes.
  • Page 16 SIDE A/V Copyright©2007 LG Electronics.Inc. All right reserved. LGE Internal Use Only - 16 - Only for training and service purposes.

  • Page 17: Trouble Shooting

    2. TU / IF SECTION 3. VIDEO PROCESSING In case of influx NOISE - R/C is not operate Maneuver defectiveness Maneuver defectiveness Maneuver defectiveness Copyright©2007 LG Electronics.Inc. All right reserved. LGE Internal Use Only - 17 - Only for training and service purposes.
  • Page 18 4. SMPS PRIMARY SECTION 5. SMPS SECONDARY SECTION Copyright©2007 LG Electronics.Inc. All right reserved. LGE Internal Use Only - 18 - Only for training and service purposes.
  • Page 19 6. VERTICAL SECTION 7. HORIZONTAL SECTION Copyright©2007 LG Electronics.Inc. All right reserved. LGE Internal Use Only - 19 - Only for training and service purposes.
  • Page 20 8. SOUND PROCESSING SECTION 9. CPT DRIVE SECTION Copyright©2007 LG Electronics.Inc. All right reserved. LGE Internal Use Only - 20 - Only for training and service purposes.

  • Page 21: Block Diagram

    BLOCK DIAGRAM Copyright©2007 LG Electronics.Inc. All right reserved. LGE Internal Use Only - 21 - Only for training and service purposes.

  • Page 22: Exploded View

    EXPLODED VIEW Copyright©2007 LG Electronics.Inc. All right reserved. LGE Internal Use Only - 22 - Only for training and service purposes.

  • Page 23: Exploded View Parts List

    Power Cord Assembly,CE-503/H03VVH2-F 2X0.75MM2/2.4M/BLK 174-225C Power Cord Assembly,TJC1 TJC1-2Y 2.0M 220MM 250V ACQ32599401/04/05/06 Cover Assembly,21FS7RG-ZS MC-059C 21" LGESY TOOL MBG36628001 Button,Control, MOLD ABS 380 6 KEY ABS-380 21FS7RG 320-062H Spring, CUTTING STSC304 COIL STSC304 MBG36628801 Button,Power, MOLD ABS HF-380 21FS7RG-TS ABS HF38 ACQ32599502/03/04/05 Cover Assembly,21FS7RK-LS MC-059C 21"...

  • Page 24: Replacement Parts List

    EU1Z 200V 2.5V 10UA 15A 50NSEC DO41 T 0CE475DK618 C242 EGR475M050T1G1C11G 4.7uF 20% 50V D813 0DRDC00014F RU3AM 600V 1100MV 10UA 50A 90NSEC C243 0CE475DK618 EGR475M050T1G1C11G 4.7uF 20% 50V Copyright©2007 LG Electronics.Inc. All right reserved. LGE Internal Use Only - 24 - Only for training and service purposes.
  • Page 25 0CE105CK638 SHL5.0TP50VB1M 1uF 20% 50V 22MA -40TO C518 0CE107DD618 SMS5.0TP10VB100M 100uF 20% 10V 157MA C720 181-007C ECQV1H104JL3 100nF 5% 50V MPE Copyright©2007 LG Electronics.Inc. All right reserved. LGE Internal Use Only - 25 - Only for training and service purposes.
  • Page 26 336-072C BSP(C2600R) 1P LUG STRAIGHT DIP TP SN L1202 0LA1000K119 Inductor,Wire Wound,Axial” LAL02TB101K 336-072C BSP(C2600R) 1P LUG STRAIGHT DIP TP SN Copyright©2007 LG Electronics.Inc. All right reserved. LGE Internal Use Only - 26 - Only for training and service purposes.
  • Page 27 RD-96T1J3K60 3.6KOHM 5% 1/6W 3.2X1.8M 0RD1000F609 RD-96T1J100R 100OHM 5% 1/6W 3.2X1.8 R103 0RD1201F609 RD-96T1J1K20 1.2KOHM 5% 1/6W 3.2X1.8M R410 0RD5101F609 RD-96T1J5K10 5.1KOHM 5% 1/6W 3.2X1.8M Copyright©2007 LG Electronics.Inc. All right reserved. LGE Internal Use Only - 27 - Only for training and service purposes.
  • Page 28 RD-96T1J1K00 1KOHM 5% 1/6W 3.2X1.8MM R552 0CN1030F679 RH EP050 Y103M-B-B 10nF 20% 16V X5R - R884 0RD1201F609 RD-96T1J1K20 1.2KOHM 5% 1/6W 3.2X1.8M Copyright©2007 LG Electronics.Inc. All right reserved. - 28 - LGE Internal Use Only Only for training and service purposes.
  • Page 29 EUA4.43361F00EYYL 4.433619MHZ 15PPM 6200QL3003W Z111 HDMIF389A5M 38.9MHZ 17.3*3.9*8.7 SIP ACCESSORIES 38289U0580A Manual,USER MC059C LG NEU/FL 38289U0580E Manual, USER MC059C LG NAGHI AR/EN 38289U0580F Manual,USER MC059C LG NEU AR/EN 38289U0580K Manual,USER MC059C KA/RU/EN 38289U0580N Manual,USER MC059C FR/EN 3828VA0383J Manual,USER MC049B LG 16 GAME...
  • Page 30 Copyright©2007 LG Electronics. Inc. All right reserved. P/No : 38549D0026A Only for training and service purposes LGE Internal Use Only...
  • Page 31 SVC. SHEET : 38549D0026A-S...

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