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LG Electronics MODEL: 42LF66 42LF66-ZE (4) In the case of becomes unusual display from side S-video/AV mode, (5) In the case of becomes unusual display from Component, RGB mode, (6) In the case of becomes unusual display from HDMI mode

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(4) In the case of becomes unusual display from side S-video/AV mode

Is Video input of the

AV Jack (P1400)

normal?

Check the input source.

Is normal the Input voltage,

IICCommunication and HV sync?

Yes

No Replace IC

Replace IC

Is normal the

CXA2069Q?

Yes

Same as Block A

(5) In the case of becomes unusual display from Component, RGB mode

Is R,G,B input and

H,V Sync of the J1100

normal?

Yes

Check the input source.

Same as Block A

(6) In the case of becomes unusual display from HDMI mode

Is normal the

HDMI002 (IC1004)?

Yes

Is normal the Input voltage, IIC

Communication and HV sync?

Same as Block A

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Contents

Main CONTENTS SAFETY PRECAUTIONS General Guidance AC Volt-meter 1.5 Kohm/10W Before returning the receiver to the customer, SERVICING PRECAUTIONS Page 1. Application range 2. Specification 3. Test method SPECIFICATION 4. General Specification(FHD Module) 5. Chroma & Brightness 5-1. FHD Module-47LF66 5-2. FHD Module-42LF66 5-3. FHD Module-37LF66 6. Component Video Input (Y, PB, PR) 7. RGB Input (PC) 7-1. EDID Input (PC) 8. HDMI Input (DTV) 8. HDMI Input (PC) 8-1. EDID Input (HDMI) Page Page ADJUSTMENT INSTRUCTION 1. Application Range 4.1. EDID Data 2. Specification 3. Channel Recover 5. Method of Tool Option setting 6. ADC Calibration 7. White Balance 7.1 Auto white Balance 7.2 Manual white Balance 8. Set Information(Serial No & Model name) TROUBLESHOOTING 1. No power (1) Symptom (2) Check follow 2. Protect mode 3. No Raster 4. In case of occur strange screen into specific mode 1) In case of does't display the OSD 2) In case of does't display the screen into specific mode (3) In case of becomes unusual display from RF mode Block A (4) In the case of becomes unusual display from side S-video/AV mode (5) In the case of becomes unusual display from Component, RGB mode (6) In the case of becomes unusual display from HDMI mode Page 5. In case of no sound BLOCK DIAGRAM Page EXPLODED VIEW EXPLODED VIEW PARTS LIST No. PART NO. DESCRIPTION REPLACEMENT PARTS LIST CAPACITORs ACCESSORY Page Page Page Page ICs DIODEs FILTERs & INDUCTORs RESISTORs TRANSISTORs & FETs Page Page Page Page Page Page OTHERs CONNECTOR Page IC101 STI5100GUC Option for remote control FE_TS_DATA_SYN TO MSP SPDIF_OUT [POWER BLOCK] CPU(STi5100) core 1.25 volt CORTEZ-PLUS to MSP SW_TU_SDA STHDMI002A PDP : 100p HB-1T2012-102JT Pr Y STA335BW LA7217M EYE L1402 HH-1M3216-501