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COLOR TV
SERVICE MANUAL
CHASSIS : AC-02SD
MODEL : 30FZ1DC
MODEL :
32FZ1DC-UB
CAUTION
BEFORE SERVICING THE CHASSIS,
READ THE SAFETY PRECAUTIONS IN THIS MANUAL.
CANADA : http//biz.lgservice.com
USA
: http//www.lgservice.com
: http//lgservice.com/techsup.html

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   Summary of Contents for LG 30FZ1DC

  • Page 1: Service Manual

    CANADA : http//biz.lgservice.com : http//www.lgservice.com : http//lgservice.com/techsup.html COLOR TV SERVICE MANUAL CHASSIS : AC-02SD MODEL : 30FZ1DC MODEL : 32FZ1DC-UB CAUTION BEFORE SERVICING THE CHASSIS, READ THE SAFETY PRECAUTIONS IN THIS MANUAL.

  • Page 2: Safety Precautions

    If the meter indication is out of tolerance, immediate service and correction is required to prevent the possibility of premature component failure. CANADA: LG Electronics Canada, Inc. 550 Matheson Boulevard East Mississauga, Ontario L4Z 4G3 Before returning the receiver to the customer, : LG Customer Interactive Center P.O.Box 240007, 201 James Record Road Huntsville,...

  • Page 3: Table Of Contents

    TABLE OF CONTENTS DESCRIPTION OF CONTROLS ...........4 SPECIFICATIONS..............9 ADJUSTMENT INSTRUCTION...........10 BLOCK DIAGRAM...............23 EXPLODED VIEW...............26 EXPLODED VIEW PARTS LIST .........27 REPLACEMENT PARTS LIST ..........28 SCHEMATIC DIAGRAM............PRINTED CIRCUIT BOARDS ..........- 3 -...

  • Page 4: Description Of Controls

    DESCRIPTION OF CONTROLS Front Panel Controls - Here shown may be somewhat different from your TV. power Standby indicator (Illuminates brightly when the TV is in standby mode. Dims when the TV is switched on.) Remote control sensor TV/VIDEO menu vol left/ right Volume( ) button increases the sound level and volume(...

  • Page 5

    DESCRIPTION OF CONTROLS Rear Connections Panel - Connecting external equipment to your TV. - Here shown may be somewhat different from your TV. RF Connectors: CALIBRATION Antenna Input, Digital Audio Used to connect Output Optical ANTENNA cable or antenna DIGITAL Connects to exter- +75 Ω...

  • Page 6

    DESCRIPTION OF CONTROLS Front Connections Panel There are four jacks on the lower-right front front of your TV that make connecting Audio/Video devices like video games and camcorders very simple. The jacks are like those found on the back jack connection panel. This means that most equipment that connects to those types of jacks on the rear jackpack, may be connect- ed to the Front connection panel (Front...

  • Page 7

    DESCRIPTION OF CONTROLS Remote Control Functions in TV Mode MODE INDICATOR MODE LIGHTS Selects the remote operating Show active remote mode mode: TV, VCR, Cable, DVD or every time any button is Satellite. Select other operating pressed. modes, for the remote to oper- ate external devices.

  • Page 8

    DESCRIPTION OF CONTROLS Remote Control Functions in TV Mode VIDEO2 POWER Selects the Video2 input source. Turns your TV or any other programmed equipment on or off, depending on mode. COMP1 Selects the Component 1 input FRONT source. Selects the front video input source. HDMI NUMBER KEYPAD Selects the HDMI input source.

  • Page 9: Specifications

    SPECIFICATIONS Model 32FZ1DC-UB Horizontal Size (inches) 35.86 Height (inches) 23.66 Thickness (inches) 21.73 Weight (pounds) 132.3 Power requirement AC 120V~ 60Hz Television system American TV Standard, NTSC, ATSC with STB Television Channel VHF: 2 - 13 UHF: 14 - 69 CATV: 1 - 135 CADTV: 1 - 135 DTV: 2 - 69...

  • Page 10: Adjustment Instruction

    ADJUSTMENT INSTRUCTIONS 1. Application Object These instructions are applied to the AC-02SD chassis. 2. Notes (1) Because this is not a hot chassis, it is not necessary to use an isolation transformer. However, the use of an isolation transformer will help protect test instruments. (2) Adjustments must be done in the correct order.

  • Page 11

    ADJUSTMENT INSTRUCTIONS Select the MICOM Model.(M16C/6H Group --> M306H3FC) [ After setting, you need not set, again. 4-2. JIG Connection Connection to the Micom Port on the TV Board. (Spot of the red line(an arrow)is connected to the port 1.) <MICOM JIG>...

  • Page 12: Screen Voltage Adjustment

    ADJUSTMENT INSTRUCTIONS (2) Set the Aspect ratio to Wide Mode. (3) Receive a Cross Hatch Pattern, adjusting the FOCUS Knob on the flyback transformer for the best focus in the area designated “A” above. [ Heat run over 15 minutes before adjustment. 7.

  • Page 13: White Balance Adjustment

    ADJUSTMENT INSTRUCTIONS 8-3. Vertical Deflection Size Adjustment 9-2. Preliminary Steps (1) Turn the power supply on. (Overscan : 10%) (2) Enter the Component mode. (1) Select 59. V-SIZE in the adjustment mode. (3) Receive the “1080I” Format, “Hoz30Bar” Pattern of the (2) Adjust until the smaller inscribed circle coincides with the Video Pattern Generator.

  • Page 14: Sub Bright Adjustment

    ADJUSTMENT INSTRUCTIONS 11. Sub Bright, TINT, COLOR Adjustment 11-1. Sub Bright Adjustment 0 1 2 3 4 5 US14CH (1) Select EZ Adjust 5. Sub Bright pressing ADJ key on the SVC Remote control. (2) Adjust to the point where “2” is not visible. 11-2.

  • Page 15

    ADJUSTMENT INSTRUCTIONS 12. Service Mode Adjustment Data (SVC Remote control ‘ADJ’ Key) (1) Raster, Center, H/V_Size Data DATA V-POSITION V-SIZE H-POSIT ION H-SIZE UP-VLIN LO-VLIN PIN-AMP PIN-PHASE UP-CPI N LO-CPIN AFC-BOW AFC-ANGLE (2) W/B Data DATA R-DRIVE 31(Fix.) G-DRIVE B-DRIVE R-CUTOFF 31(Fix.) G-CUTOFF...

  • Page 16

    ADJUSTMENT INSTRUCTIONS 13. Service Mode Adjustment Data (SVC Remote control ‘IN-START’ Key) (1) CXA2150 Initial Initial Initial ITEM ITEM ITEM Data Data Data PIC_ON CD_OFF JMP_S W R_ON SHP_CD V_SCROLL G_ON SHP_F1 VFREQ B_ON PRE_O VER UP_VLIN DCOL VM_COR LO_VLIN WB_SW VM_F0 V_COMP...

  • Page 17

    ADJUSTMENT INSTRUCTIONS (2) CXA1875AM DATA Tilt1 Tilt2 DF Gain DF Phase DAC2 Tilt CTR CSCTR (3) VPX3226E DATA DATA NOSEL CHROMA_V FREQUENCY BRIGHTNESS CONTR1 CORING NOISE1 PEAKING CLAMP1 LOWPASS BRIBYP1 SKEWFILTER CONBYP1 VACK - 17 -...

  • Page 18

    ADJUSTMENT INSTRUCTIONS (4) UPD64083 Initial Initial Initial ITEM ITEM ITEM Data Data Data YA PS LDSR COUTS YTRR NRMO VTRH KILR KILS PLLFG FSCFG KSDS FELCHK BPLLFS CLKS HPLLFS EXCSS ID1DECON VSSL PECS HSSL MFREEZE VAPI NV BGPW EXADINS VAPGAIN BGPS DYCOS YPFG...

  • Page 19

    ADJUSTMENT INSTRUCTIONS (5) MST3000 ITEM Initial Data ITEM Initial Data CHIP_REVIS ION RED_CLAMP_S EL PLL_DIV_MSB GREEN_CLAMP _SE L PLL_DIV_LSB BLUE_CLAMP_SE L VCO_RANGE SYNC_SEP ARATOR CHARGE_P UMP_CURRE PRE_COA ST PHASE_ ADJUST POST_COA ST CLAMP_PLACEMENT CLAMP_DURATION HSYNC_OUTPUT_P ULS RED_GAIN GREEN_ GAIN BLUE_GAIN RED_OFFS ET GREEN_OFF SET BLUE_OFFSET...

  • Page 20

    PURITY & CONVERGENCE ADJUSTMENT Caution: 5. Reconnect the internal degaussing coil. Convergence and Purity have been factory aligned. Do not 6. Position the beam bender locking rings at the 9 o'clock attempt to tamper with these alignments. position and the other three pairs of tabs (2,4 and 6 pole However, the effects of adjacent receiver components, or magnets) at the 12 o'clock position.

  • Page 21

    PURITY & CONVERGENCE ADJUSTMENT 1.ADJUST YOKE Z-AXIS FIRST 2 .ADJUST BEAM BENDER 2 POLE TO GET EQUAL BLUE MAGNET TO GET FOUR EQUAL COLOR CIRCLES COLOR CIRCLES MAGNETS 8. Referring to above, perform the following two steps: 5. Restore the screen by removing the horizontal line. a.

  • Page 22

    PURITY & CONVERGENCE ADJUSTMENT ROTATION DIRECTION RING MOVEMENT OF RED OF BOTH TABS PAIRS AND BLUE BEAMS OPPOSITE POLE SAME OPPOSITE POLE SAME UP/DOWN ROCKING OF THE YOKE CAUSES LEFT/RIGHT ROCKING OF THE YOKE UP/DOWN ROCKING OF THE YOKE LEET/RIGHT ROCKING OF THE YOKE OPPOSITE ROTATION OF RED AND BLUE CAUSES OPPOSITE SIZE CHANGE OF CAUSES OPPOSITE ROTATION OF RED...

  • Page 23: Block Diagram

    BLOCK DIAGRAM - 23 -...

  • Page 24

    BLOCK DIAGRAM - 24 -...

  • Page 25

    BLOCK DIAGRAM - 25 -...

  • Page 26: Exploded View

    EXPLODED VIEW - 26 -...

  • Page 27: Exploded View Parts List

    EXPLODED VIEW PARTS LIST Part No. Description 6335V32020G CPT ASSEMBLY,W76QEP270X VANLGD N(+0.40G) 0G 32WF RAC TINT 120-C77N SPEAKER,FULLRANGE C122S01K1450 8OHM 15/25W 84.5DB OTHERS 4810V00542A BRACKET,SPK FOR VE 29Q20/FA30 6140VC2006H COIL,DEGAUSSING AL 65TURN 14.5OHM 0.80PIE 3800MM 32 2007J+D07D 170-797X CPT EARTH,32 144T 2LUG 1P*2 . 6410VUH004A POWER CORD,UL/CSA3000MM 3P 3000MM HUG BLACK 500MH 7A 3091V00554H...

  • Page 28: Replacement Parts List

    RF : Fusible LOCA. NO PART NO DESCRIPTION LOCA. NO PART NO DESCRIPTION IC602 0IMCRMN027E MSP4440G QA B8 80P IC607 0ICTMLG019A LGDT3303 LG IC 100P 0ISK100300A D808 SLA1003 SIP12 (RU4AM+FMLG12S) IC610 0IMMRCS012B CAT24WC08W-T(MST3000) 8P IC100 0IMCRSS016A S3C44BOX01-EDRO LQFP-160 IC700 0IPRPAT002A...

  • Page 29

    REPLACEMENT PARTS LIST LOCA. NO PART NO DESCRIPTION LOCA. NO PART NO DESCRIPTION Q1608 0TR387500AA CHIP 2SC3875S(ALY) BK KEC Q972 0TR394400AA 2SC3944A TO220 180V Q1609 0TR387500AA CHIP 2SC3875S(ALY) BK KEC Q973 0TR153500AA 2SA1535A TO220 -180V Q1610 0TR102008AA KRA102S R/TP KEC SOT23 DIODE Q1901 0TR387500AA...

  • Page 30

    REPLACEMENT PARTS LIST LOCA. NO PART NO DESCRIPTION LOCA. NO PART NO DESCRIPTION D830 0DD060009AC TVR06J 600V 250NSEC - C1231 0CK104DK56A 0.1UF 2012 50V 10% D831 0DD060009AC TVR06J 600V 250NSEC - C1232 0CE226DF618 22UF STD 16V M D832 0DD060009AC TVR06J 600V 250NSEC - C124 0CE106SF6DC 10UF MVG 16V 20%...

  • Page 31

    REPLACEMENT PARTS LIST LOCA. NO PART NO DESCRIPTION LOCA. NO PART NO DESCRIPTION C1444 181-0641 CE 6.8UF 50V 5% M (16*35.5) C1917 0CE107BF618 100UF KME TYPE 16V 20% C1445 0CE106BP618 10UF KME TYPE 160V 20% C1918 0CQ1044R539 0.1UF TE 250V 10% C1449 0CE335CK636 3.3UF SHL,SD 50V 20% FM5 BP(D) TP...

  • Page 32

    REPLACEMENT PARTS LIST LOCA. NO PART NO DESCRIPTION LOCA. NO PART NO DESCRIPTION C397 0CE226SF6DC 22UF MVG 16V 20% C529 0CK104DK56A 0.1UF 2012 50V 10% C398 0CE106SF6DC 10UF MVG 16V 20% 0CE107BF618 100UF KME TYPE 16V 20% 0CK104DK56A 0.1UF 2012 50V 10% C530 0CQ1041N455 0.1UF D 100V 5%...

  • Page 33

    REPLACEMENT PARTS LIST LOCA. NO PART NO DESCRIPTION LOCA. NO PART NO DESCRIPTION C816 181-014A 0.0022UF 1.6KV 5% R1977 0CK104DK56A 0.1UF 2012 50V 10% C817 181-091C DEHR33A471KN2A 470PF 1KV 10%,-10% COIL & TRANSFORMER C818 0CE478BH650 4700UF KME TYPE 25V 20% C820 0CE108BF618 1000UF KME TYPE 16V 20%...

  • Page 34

    REPLACEMENT PARTS LIST LOCA. NO PART NO DESCRIPTION LOCA. NO PART NO DESCRIPTION P601 6612B00015A JACK,DIN DC1R019NDA JAE 1.0MM R1439 180-A01M 0.22 OHM 2 W 5% R1440 180-A01M 0.22 OHM 2 W 5% RESISTOR R1441 0RD2701H609 2.7K OHM 1/2 W 5.00% R1442 0RD1000F609 100 OHM 1/6 W 5%...

  • Page 35

    REPLACEMENT PARTS LIST LOCA. NO PART NO DESCRIPTION LOCA. NO PART NO DESCRIPTION R803 0RD0102F609 10 OHM 1/6 W 5% R980 0RD3902H609 39K OHM 1/2 W 5.00% R804 0RF0161K607 1.6 OHM 2 W 5.00% R981 0RD3902H609 39K OHM 1/2 W 5.00% R805 0RD2702H609 27K OHM 1/2 W 5.00%...

  • Page 36

    REPLACEMENT PARTS LIST LOCA. NO PART NO DESCRIPTION LOCA. NO PART NO DESCRIPTION X301 6202VDT002E RESONATOR,CRYSTAL SX-1SMD 20250000HZ X501 6212BA2002C RESONATOR,CERAMIC CSALA2M69G4ZF01-B0 X601 156-A02R RESONATOR,CRYSTAL HC49U 18.432MHZ X602 6202VDT002B RESONATOR,CRYSTAL SX-1 SC14.3MHZ MISCELLANEOUS 6852TAZ012Q CABLE,NT-RCA(R/A) UL 1365 AWG 26 300MM F801 0FS5001A51B FUSE,SLOW BLOW 5000MA 125V...

  • Page 37

    June, 2005 P/NO : 3828VD0156K Printed in Korea CANADA: LG Electronics Canada, Inc. 550 Matheson Boulevard East Mississauga, Ontario L4Z 4G3 : LG Electronics Alabama Inc. P.O.Box 240007, 201 James Record Road, Bldg. 3, Huntsville, AL 35824...

  • Page 41

    MAIN 2 DIGITAL(TOP) DIGITAL(BOTTOM) MAIN(TOP) MAIN(BOTTOM) SIDE A/V CONTROL...

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