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LG 14CA8RB, Service Manual

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LG 14CA8RB Service Manual Download Page 2

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CONTENTS

CONTENTS ............................................................................................................. 2

SAFETY PRECAUTIONS....................................................................................3

DESCRIPTION OF CONTROLS.......................................................................4

SPECIFICATIONS ..................................................................................................7

ADJUSTMENT........................................................................................................9

PRINTED CIRCUIT BOARD .............................................................................14

TROUBLE SHOOTING .......................................................................................15

BLOCK DIAGRAM ...............................................................................................19

EXPLODED VIEW................................................................................................20

EXPLODED VIEW PARTS LIST .....................................................................21

REPLACEMENT PARTS LIST ....................................................................... 22

Summary of Contents for 14CA8RB

Page 1: ...EFORE SERVICING THE CHASSIS READ THE SAFETY PRECAUTIONS IN THIS MANUAL CHASSIS MC 059B MODEL 14CA8RB RG MODEL 14CA8RB RG TH website http biz LGservice com e mail http www LGEservice com techsup html MENU OK VOL ON OFF PR VIDEO AUDIO AV ...

Page 2: ...TENTS 2 SAFETY PRECAUTIONS 3 DESCRIPTION OF CONTROLS 4 SPECIFICATIONS 7 ADJUSTMENT 9 PRINTED CIRCUIT BOARD 14 TROUBLE SHOOTING 15 BLOCK DIAGRAM 19 EXPLODED VIEW 20 EXPLODED VIEW PARTS LIST 21 REPLACEMENT PARTS LIST 22 ...

Page 3: ...perform an AC leakage current check on the exposed metallic parts of the cabinet such as antennas terminals etc to be sure the set is safe to operate without damage of electrical shock Leakage Current Cold Check Antenna Cold Check With the instrument AC plug removed from AC source connect an electrical jumper across the two AC plug prongs Place the AC switch in the on position connect one lead of ...

Page 4: ...on 4 EYE option switches the eye function on or off 5 D D E E Programme Up Down selects a programme or a menu item switches the set on from standby scans programmes automatically F F G G Volume Up Down adjusts the volume adjusts menu settings OK accepts your selection or displays the current mode 6 Q VIEW returns to the previously viewed programme 7 PSM Picture Status Memory recalls your preferred...

Page 5: ...he programme table 14 SLEEP sets the sleep timer 15 SSM Sound Status Memory option recalls your preferred sound setting 16 SURROUND º º option selects surround sound No function COLOURED BUTTONS These buttons are used for teletext only TELETEXT models or programme edit POWER MUTE 1 2 3 4 5 6 7 8 9 MENU INDEX TV AV 0 EYE Q VIEW LIST I II PR PR OK VOL VOL PSM SSM SLEEP PICTURE SOUND TURBO FAVOURITE ...

Page 6: ...andby 6 AUDIO or AUDIO L R VIDEO IN SOCKETS AV2 option Connect the audio video out sockets of external equipment to these sockets 7 HEADPHONE SOCKET option Connect the headphone plug to this socket 8 TURBO SOUND PICTURE option switches Turbo sound or Turbo picture on or off 9 EYE option adjusts picture according to the surrounding conditions Note Shown is a simplified representation of front or si...

Page 7: ...eceiver must be operated for about 20 minutes prior to the adjustment V Test Method 1 Performance LGE TV test method followed 2 Demanded other specification CCC Safety IEC60065 7 A General specification SPECIFICATIONS Note Specification and others are subject to change without notice for improvement Item Receiving System Available Channel Input Voltage Market Screen Size Aspect Ratio Display Metho...

Page 8: ...Monitor out 1 Front Power Vol F G PR E D MENU OK Turbo Picture Sound LG Code NEC System Storage Normal Turbo Storage System Channel Fine Search Name Copy Move Delete Skip 8 Channel Dynamic Standard Mild Game User Contrast Brightness Color Sharpness Tint NTSC M Only Flat Music Movie Speech User 0 100 100 400 1K 4K 10K Off On Pr 1 VOL 30 Off On On Off English Russia English Indonesia Thai Vietnam TV...

Page 9: ...s the ADJ key on LINE SVC remote control changes to screen adjustment mode 3 Adjust the Screen Vol of FBT to appear Horizontal Line and adjust the Screen Vol of FBT at disappear point Horizontal Line Press the Enter A key to exit SVC mode 5 Purity and Convergence Adjustment 5 1 Purity Adjustment 1 Adjustment Preparation 1 Receive Red Raster Pattern for purity adjustment 2 Demagnetize the CPT and C...

Page 10: ...and BRIGHTNESS b Adjust X data of High light with R DRIVE VP7 and Y data with B DRIVE VP9 to have the color temperature as shown below c Make the picture luminance 4 5Ft L by changing the CONTRAST and BRIGHTNESS d Adjust X data of low light with R BIAS VP4 and Y data with B BIAS VP6 to have the color temperature as shown below e Repeat steps a d until both low and high light have same readings as ...

Page 11: ... TABLE 3 OPTION 1 DVD TURBO ME V CURVE V MUTE EYE FLAT SND MUTE GAME OPTION2 TURBO ARC 200PR BLUEBACK TURBO AT HOTEL SHARP DVDN OPTION3 FM TRANS FM HIGH NTSC AV PSEU SYNC KI A2 SW LNA SWOOFER OPTION 4 SYSTEM SND MODE AV LOC KEY COLOR T PLL DIV MTS LEV OPTION 5 FM PRE NICAM PRE SCART PRE A2 FM TH FIRST TH ZWT TH INITIAL 0 0 0 0 0 1 1 0 0 0 0 1 1 0 0 1 0 0 1 1 1 0 0 0 4 1 2 1 1 31 22 6 13 0 5 15 2 R...

Page 12: ...at Bright ABL Threshold RGB Temp SW Coring Gain Select Pre shoot Adjustment Over shoot Adjustment Y Gamma start point Select DC Restoration Select Black Stretch Start Point Select Black Stretch Gain Select C Bypass C Kill On C Kill Off Color Killer Operational Point R B Gain Balance R B Angle B Y DC Level R Y DC Level Video Level OVER MOD SW OVER MOD LEVEL Tint Through Range 0 63 0 31 0 15 0 127 0...

Page 13: ...nput Auto Flesh WPL operating Point VM Gain Sensitivity of sync sepalation G Y Amplitude Color on off on Half tone Mode Overmodulation circit Type APC Offset current IF video level offset 5 74MHz FM Det IF VCO freerun frequency Equalizer Bell filter Equalizer circuit Bell filter adjust SECAM Killer circuit disable SECAM Killer circuit enable OSD Contrast OSD Position Range 0 3 0 3 0 3 0 3 0 3 0 3 ...

Page 14: ... 14 PRINTED CIRCUIT BOARD MAIN ...

Page 15: ... 15 Maneuver defectiveness Maneuver defectiveness In case of influx NOISE R C is not operate Maneuver defectiveness 1 TV FUNCTIONAL 2 TU IF SECTION 3 VIDEO PROCESSING TROUBLE SHOOTING ...

Page 16: ... 16 4 SMPS PRIMARY SECTION 5 SMPS SECONDARY SECTION ...

Page 17: ... 17 6 VERTICAL SECTION 7 HORIZONTAL SECTION ...

Page 18: ...8 SOUND PROCESSING SECTION 18 9 CPT DRIVE SECTION ...

Page 19: ... 19 BLOCK DIAGRAM HIC291 ...

Page 20: ... 20 EXPLODED VIEW 913 112 153 170 300 150 330 320 310 120 943 400 520 P801 ...

Page 21: ...14CA85V ABS HF 380 4KEY 117 5020V00806A BUTTON CONTROL RT 14CA80 ABS HF 380 6KEY N ALLIED MOLD EXPORT 320 320 062H SPRING COIL 330 5020V00649C BUTTON POWER RT 14CA85V ABS HF 380 1KEY 117A 5020V00807A BUTTON POWER RT 14CA80 ABS HF 380 1KEY N ALLIED MOLD EXPORT 400 3809V00415C BACK COVER ASSEMBLY RT 14CA80V 1PHONE SY N ALLIED 3809V00A42K BACK COVER ASSEMBLY RT 14CA85MX 1PHONE IN SET 520 68719MM156K ...

Page 22: ...SVC SHEET 3854V A0196B S ...

Page 23: ...03 Q501 Q801 Q813 Q901 Q902 Q903 D111 D301 D302 D403 D405 D501 D502 D505 D601 D801 D802 D803 D813 D815 D826 D834 D901 D902 DB801 0IAL241610B 0IPRPSA006B 0ICTMSA006A 0IPMGSA024A 0IPMGSK016A 0IPRPKD003A 0IKE780500Q 0IMCRKE002B 0ISK110000A 0TR319809AA 0TR319709AB 0TR319809AA 0TR102009AB 0TR102009AB 0TR126609AA 0TR322809AA 0TRSA10004A 0TR421009CC 0TR319809AA 0TR319809AA 0TR102009AB 0TR233009CA 0TR2330...

Page 24: ...20 FL TP 5 A C 275V 0 1UF M S 15 CE 400V 220UF M LUG 85 1000PF D 2KV 10 TR B Y5P LOCA NO PART NO DESCRIPTION C805 C809 C810 C811 C813 C814 C815 C817 C818 C819 C821 C826 C831 C833 C835 C839 C843 C850 C853 C901 C902 C904 C907 C908 R511 C115 J709 L102 L401 L501 L802 T403 T803 C1 C2 C3 C4 P101 P401 P601 P801 P802 P901 FR301 FR401 FR403 0CK10202515 0CE105DK618 0CE336DK618 181 011B 181 091R 0CE227DP61A ...

Page 25: ...6 W 5 TA52 LOCA NO PART NO DESCRIPTION R41 R410 R413 R414 R416 R42 R420 R421 R423 R43 R501 R502 R504 R505 R506 R507 R508 R509 R510 R512 R513 R514 R515 R516 R519 R521 R522 R523 R524 R525 R526 R527 R528 R529 R530 R531 R532 R533 R537 R547 R550 R561 R565 R566 R58 R603 R604 R611 R618 R620 R65 R66 0RD1000F609 0RD5101F609 0RD3300A609 0RD1002F609 0RS1001J607 0RD1004F609 0RD2403F609 0RD4700F609 0RD3001F609...

Page 26: ...0 5 00 TA52 1 5K OHM 1 2 W 7 0 5 00 TA52 1 5K OHM 1 2 W 7 0 5 00 TA52 100 OHM 1 6 W 5 TA52 430 OHM 1 6 W 5 00 TA52 18K OHM 2 W 5 00 TA62 1M OHM 1 6 W 5 TA52 SKHV17910B 12V 0 05A HORIZONTAL 160G SKHV17910B 12V 0 05A HORIZONTAL 160G SKHV17910B 12V 0 05A HORIZONTAL 160G SKHV17910B 12V 0 05A HORIZONTAL 160G SKHV17910B 12V 0 05A HORIZONTAL 160G SKHV17910B 12V 0 05A HORIZONTAL 160G SDKLA1 ALPS UL CSA 25...

Page 27: ...Jan 2006 Printed in Korea P NO 38289S0047B ...

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