RCA 14M041 Service Manual Download Page 16 | Manualshive

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ELECTRICAL ADJUSTMENTS

4. ELECTRICAL ADJUSTMENT PARTS LOCATION GUIDE (WIRING CONNECTION)

TU001

S501A

S501B

FB401

CD501

AC IN

CP401

CP802B

CP806

S101

CRT PCB

MAIN PCB

CRT

CD101A

CD101B

SPEAKER

S102

R807

R803

J801

TP023

TP022

CP803B

CRT

CP502

L503

D-4

CP801

CRT

CD801

CP802A

CP803A

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Summary of Contents for 14M041

Page 1: ...SERVICE MANUAL 14M041 Design and specifications are subject to change without notice COLOR TELEVISION RECEIVER MFR S VERSION A Rev 0 ...

Page 2: ... is replaced should be used the part which has the same character Especially as to the important parts for safety which is indicated in the circuit diagram or the table of parts as a mark the designated parts must be used PUT PARTS AND WIRES IN THE ORIGINAL POSITION AFTER ASSEMBLING OR WIRING 4 There are parts which use the insulation material such as a tube or tape for safety or which are assembl...

Page 3: ...FICATIONS DISASSEMBLY INSTRUCTIONS 1 REMOVAL OF ANODE CAP 2 REMOVAL AND INSTALLATION OF FLAT PACKAGE IC SERVICE MODE LIST CONFIRMATION OF HOURS USED WHEN REPLACING EEPROM MEMORY IC ELECTRICAL ADJUSTMENTS TROUBLESHOOTING GUIDE BLOCK DIAGRAM PRINTED CIRCUIT BOARDS MAIN CRT SCHEMATIC DIAGRAMS MICON CHROMA TUNER TV POWER DEFLECTION CRT SOUND AV WAVEFORMS MECHANICAL EXPLODED VIEW MECHANICAL REPLACEMENT...

Page 4: ...C 120V AC 60Hz DC Power Consumption at AC 54 W at AC 120 V 60 Hz Stand by at AC 5 W at AC 120 V 60 Hz Per Year kWh Year Protector Power Fuse Yes Safety Circuit Yes IC Protector Micro Fuse No G 4 Regulation Safety UL Radiation FCC X Radiation DHHS G 5 Temperature Operation 5o C 40o C Storage 20o C 60o C G 6 Operating Humidity Less than 80 RH G 7 On Screen Menu Yes Display Menu Type Character Pictur...

Page 5: ...27 Keys Keys Power Yes 1 Yes 2 Yes 3 Yes 4 Yes 5 Yes 6 Yes 7 Yes 8 Yes 9 Yes 0 Yes 100 No CH Up Yes CH Down Yes Volume Up Yes Volume Down Yes TV Caption Text Yes CH1 CH2 Yes TV Video TV AV Yes CH RTN CH ENT Quick View Yes Sleep Yes RE Call Call Yes Reset Yes Menu Yes Enter Yes Mute Yes Exit No MTS Audio Select No Set Yes Set Yes Multi Brand Keys CH Up VCR No CH Down VCR No Pause Still No TV VCR VC...

Page 6: ...No Battery Yes UM size x pcs UM 4 x 2 pcs OEM Brand No AC Cord No AV Cord 2Pin 1Pin No Registration Card Yes PTB Sheet No 300 ohm to 75 ohm Antenna Adapter No Warranty Sheet No G 13 Interface Switch Front Power Yes System Select No Main Power SW No Sub Power No Channel Up Reset Yes Channel Down Enter Yes Volume Up Set Up Yes Volume Down Set Down Yes MENU Volume Up Volume Down Yes Rear AC DC No TV ...

Page 7: ... Double Brown Dimensions W x D x H mm 440 x 408 x 380 Design As per Buyer s Description of Origin Yes Drop Test Natural Dropping At 1 Corner 3 Edges 6 Surfaces Height cm 62 Container Stuffing 866 Sets 40 container G 17 Cabinet Material Cabinet Cabinet Front PS 94V0 DECABROM Cabinet Rear PS 94V0 DECABROM PCB Non Halogen Demand No Eyelet Demand No G 18 Environment Pb Free Lead free Solder No Other N...

Page 8: ...ip up the sides of the Rubber Cap in the direction of the arrow and remove one side of the support Refer to Fig 1 2 2 GND on the CRT Screwdriver Alligator Clip Support CRT GND on the CRT Rubber Cap CRT Support Fig 1 2 3 After one side is removed pull in the opposite direction to remove the other NOTE Take care not to damage the Rubber Cap INSTALLATION 1 Clean the spot where the cap was located wit...

Page 9: ...using a blower type IC desoldering machine Refer to Fig 2 2 2 Fig 2 2 NOTE Do not add the rotating and the back and forth directions force on the IC until IC can move back and forth easily after desoldering the IC leads completely When IC starts moving back and forth easily after desoldering completely pickup the corner of the IC using a tweezers and remove the IC by moving with the IC desoldering...

Page 10: ...2 8 Thin tip Soldering Iron NOTE When the IC leads are bent during soldering and or repairing do not repair the bending of leads If the bending of leads are repaired the pattern may be damaged So be always sure to replace the IC in this case Finally confirm the soldering status on four sides of the IC using a magnifying glass Confirm that no abnormality is found on the soldering position and insta...

Page 11: ...MEMORY IC Refer to the WHEN REPLACING EEPROM MEMORY IC VOL MIN 8 Writing of EEPROM initial data NOTE Do not use this for the normal servicing VOL MIN Display of the Adjustment MENU on the screen Refer to the ELECTRICAL ADJUSTMENT On Screen Display Adjustment 9 CONFIRMATION OF HOURS USED POWER ON total hours can be checked on the screen Total hours are displayed in 16 system of notation NOTE If you...

Page 12: ...d should blink Using the VOL button on the remote step through the ADDRESS until required ADDRESS to be changed is reached Press ENTER to select DATA When DATA is selected it will blink Again step through the DATA using VOL button until required DATA value has been selected Pressing ENTER will take you back to ADDRESS for further selection if necessary Repeat steps 3 to 6 until all data has been c...

Page 13: ... Refer to Fig 2 1 Connect the oscilloscope to TP022 Activate the adjustment mode display of Fig 1 1 and press the channel button 19 on the remote control to select COL CENT Press the VOL UP DOWN button on the remote control until the red color level is adjusted to 110 10 of the white level Refer to Fig 2 2 Receive the color bar pattern Audio Video Input Press the TV AV button on the remote control...

Page 14: ...quantity of the OVER SCAN on upside and downside becomes 10 2 Receive a broadcast and check if the picture is normal NOTE Adjust after performing adjustments in section 2 5 Red 110 Receive an 70dB the color bar pattern Activate the adjustment mode display of Fig 1 1 press the channel button 17 on the remote control to select CONT MAX Press the VOL UP DOWN button on the remote control until the con...

Page 15: ...h the color bar generator from the green raster pattern to the crosshatch pattern Combine red and blue of the 3 color crosshatch pattern on the center of the screen by adjusting the pair of 4 pole magnets Combine red blue magenta and green by adjusting the pair of 6 pole magnets Adjust the crosshatch pattern to change to white by repeating steps 6 and 7 Turn the unit on and let it warm up for at l...

Page 16: ...T PARTS LOCATION GUIDE WIRING CONNECTION TU001 S501A S501B FB401 CD501 AC IN CP401 C P 8 0 2 B CP806 S101 CRT PCB MAIN PCB C R T CD101A CD101B SPEAKER S102 R 8 0 7 R 8 0 3 J 8 0 1 TP023 TP022 CP803B CRT CP502 L503 D 4 CP801 CRT CD801 CP802A CP803A ...

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