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Panasonic CT-27SL15 Service Manual
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Panasonic CT-27SL15 Service Manual

Color television
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Service Manual

This service manual is issued as a service guide for the model listed above.
Included in this manual are a set of schematic, block diagrams, functional descriptions, alignment procedures,
disassembly procedures and a complete parts list.
"WARNING! This Service Manual is designed for experienced repair technicians only and is not designed for use by the general public.
It does not contain warnings or cautions to advise non-technical individuals of potential dangers in attempting to service a product.
Products powered by electricity should be serviced or repaired only by experienced professional technicians. Any attempt to
service or repair the product or products dealt with in this Service Manual by anyone else could result in serious injury or death."
The service technician is required to read and follow the "Safety Precautions" and "Important Safety Notice" in this Main Manual.
Color Television
Main Manual
Panasonic
Models
CT-27SL15
'CT-Z1425
'CT-Z1425
© 2005 Panasonic Corporation of North America.
All rights reserved. Unauthorized copying
and distribution is a violation of law.
ORDER NO. MTNC050320C1
B05
Chassis
CME021A

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Summary of Contents for Panasonic CT-27SL15

  • Page 1: Service Manual

    Service Manual by anyone else could result in serious injury or death.” The service technician is required to read and follow the “Safety Precautions” and “Important Safety Notice” in this Main Manual. © 2005 Panasonic Corporation of North America. All rights reserved. Unauthorized copying...

  • Page 2: Table Of Contents

    CONTENTS CONTENTS ..............................A1-1 Important Safety Notice ..........................A2-1 Service Notes ............................. A2-2, A2-3 About lead free solder (PbF) ........................A2-4 GENERAL SPECIFICATIONS ........................A3-1~A3-5 DISASSEMBLY INSTRUCTIONS 1. REMOVAL OF ANODE CAP ......................2. NOTE FOR THE REMOVAL OF THE MAIN PCB ................SERVICE MODE LIST ..........................

  • Page 3: Important Safety Notice

    Important Safety Notice Special components are used in this television set which are important for safety. These parts are identified on the schematic diagram by the symbol and printed in BOLD TYPE on the replacement part list. It is essential that these critical parts are replaced with the manufacturer's specified replacement part to prevent X-ray radiation, shock, fire or other hazards.

  • Page 4: Service Notes

    Service Notes Note: These components are affixed with glue. Be careful not to break or damage any foil under the component or at the pins of the ICs when removing. Usually applying heat to the component for a short time while twisting with tweezers will break the component loose. Leadless Chip Component How to Replace Flat-IC (surface mount)
  • Page 5 Service Notes (Continued) IMPORTANT: To protect against possible damage to the WARNING: This Receiver has been designed to meet solid state devices due to arcing or static discharge, make or exceed applicable safety and X-ray radiation certain that all ground wires and CRT DAG wire are protection as specified by government agencies and securely connected.

  • Page 6: About Lead Free Solder (Pbf)

    About lead free solder (PbF) Note: Lead is listed as (Pb) in the periodic table of elements. In the information below, Pb will refer to Lead solder, and PbF will refer to Lead Free Solder. The Lead Free Solder used in our manufacturing process and discussed below is Sn(Tin)+Ag(Silver) + Cu(Copper).

  • Page 7: General Specifications

    GENERAL SPECIFICATIONS CRT Size / Visual Size 27 inch / 676.0mmV System CRT Type Flat Magnetic Field BV/BH +0.45G/0.18G Color System NTSC Speaker 2 Speaker Position Front Side Size 2 x 4.7 Inch Impedance Sound Output 2.5 + 2.5 W 10%(Typical) NTSC3.58+4.43 /PAL60Hz Tuning...
  • Page 8 GENERAL SPECIFICATIONS On Screen Menu Display Menu Type Icon Picture Normal Contrast Brightness Color Tint Sharpness Timer Sleep On/Off Timer Sound Bass Treble Balance BBE On/Off Stable Sound On/Off Surround On/Off AI Sound Set Up Language TV/Cable Auto CH Memory Add/Delete Closed Caption Lock...
  • Page 9 GENERAL SPECIFICATIONS G-10 Remote Unit RC-LH Control Glow in Dark Remocon Back light Remocon Format Matsushita Remocon Format Kaseikyo Custom Code 08-00 h Power Source Voltage(D.C) UM size x pcs UM-3(AA) x 2 pcs Total Keys Keys Keys Power CH Up CH Down Volume Up Volume Down...
  • Page 10 GENERAL SPECIFICATIONS G-11 Features Auto Degauss Auto Shut Off Canal+ Cable Anti-theft Rental Memory(Last CH) Memory(Last Volume) V-Chip Type USA,CANADA Type Auto Search CH Allocation Just Clock Function CH Label VM Circuit Full OSD Premiere Comb Filter Lines Auto CH Memory Hotel Lock Closed Caption AI Sound...

  • Page 11: Contents

    GENERAL SPECIFICATIONS G-13 Interface Switch Front Power System Select Main Power SW Sub Power Channel Up Channel Down Volume Up Volume Down Rear AC/DC TV/CATV Selector Degauss Main Power SW Indicator Power Stand-by On Timer Terminals Front Video Input Audio Input RCA x 2 Other Terminal Rear...

  • Page 12: Disassembly Instructions

    DISASSEMBLY INSTRUCTIONS INSTALLATION 1. REMOVAL OF ANODE CAP 1. Clean the spot where the cap was located with a small Read the following NOTED items before starting work. amount of alcohol. After turning the power off there might still be a potential voltage that is very dangerous.

  • Page 13: Service Mode List

    SERVICE MODE LIST This unit is provided with the following SERVICE MODES so you can repair, examine and adjust easily. To enter to the Service Mode, press both set key and remote control key for more than 2 seconds. Set Key Remocon Key Operations VOL.

  • Page 14: Electrical Adjustments

    ELECTRICAL ADJUSTMENTS 1. ADJUSTMENT PROCEDURE 2. BASIC ADJUSTMENTS Read and perform these adjustments when repairing the 2-1: CONSTANT VOLTAGE circuits or replacing electrical parts or PCB assemblies. Place the set in condition is AV MODE without signal. CAUTION Connect the digital voltmeter to the TP003. Adjust the VR502 until the digital voltmeter is 135 ±...
  • Page 15 ELECTRICAL ADJUSTMENTS 2-6: VERTICAL POSITION (RF) 2-10: HORIZONTAL PHASE (RF) Receive the center cross signal from the Pattern Generator. Receive the monoscope pattern. Using the remote control, set the brightness and contrast to Using the remote control, set the brightness and contrast normal position.
  • Page 16 ELECTRICAL ADJUSTMENTS 2-13: OSD POSITION Activate the adjustment mode display of Fig. 1-1. Press the VOL. UP/DOWN button on the remote control until the difference of A and B becomes minimum. (Refer to Fig. 2-2) 120% WHITE 100% Fig. 2-3 2-16: TINT 00 OSD Receive the color bar pattern.
  • Page 17 ELECTRICAL ADJUSTMENTS 2-18: PARABOLA CORR (RF) Receive the cross hatch signal from the Pattern Generator. Using the remote control, set the brightness and contrast to normal position. Activate the adjustment mode display of Fig. 1-1 and press the channel button (32) on the remote control to select “PARABOLA”.

  • Page 18: Purity And Convergence

    ELECTRICAL ADJUSTMENTS 3. PURITY AND CONVERGENCE 3-3: STATIC CONVERGENCE ADJUSTMENTS NOTE Adjust after performing adjustments in section 3-2. NOTE Receive the crosshatch pattern from the color bar Turn the unit on and let it warm up for at least 30 generator.
  • Page 19 ELECTRICAL ADJUSTMENTS 4. ELECTRICAL ADJUSTMENT PARTS LOCATION GUIDE (WIRING CONNECTION) CD803 CD852 TP024 R805 CP852B CP852A TP022 CP803 R803 VM COIL PCB CP806 J801 CP802B CP851B CP801B CRT PCB CP801A J702 CP101 J704 J701 FB401 TU001 CP401 VR401 TP003 CD1001 W003 SPEAKER VR502...

  • Page 20: Block Diagram

    BLOCK DIAGRAM Q855 ~ Q859 Q852, Q583 Q854 COMB FILTER IC CHROMA IC IC1501 TC90A45FG BUFFER IC601 M61283BFP VM COIL Q610 Q613 C OUT AD IN FB401 DELAYDE Y OUT SVM OFF VIDEO LINE OUT Y OUT J801 Q802, Q806 VIDEO SW(Y) IC BLUE OUT B OUT...

  • Page 21: Printed Circuit Boards Main/Crt/Vm Coil

    PRINTED CIRCUIT BOARDS MAIN/CRT/VM COIL (INSERTED PARTS) SOLDER SIDE D404 R438 CP801A C413 D407 W011 J702 CP101 R607 W857 J701 D1501 W861 C419 W827 L401_1 D608 D411 HS401 R441 R402_1 D405 C619 W022 Q410 W021 W852 C425 C333_1 D1502 R457 Q408 D410 C418...
  • Page 22 PRINTED CIRCUIT BOARDS MAIN/CRT (CHIP MOUNTED PARTS) SOLDER SIDE R745 R103 IC199 R101 R907 IC101 IC902 R864 R866 R136 R135 R125 R131 R862 R863 R107 R859 R108 R810 IC102 R145 R814 Q103 Q613 Q1502 W837 R816 Q1505 R1501 Q509 C646 C647 R644 IC1501...

  • Page 23: Micon

    MICON SCHEMATIC DIAGRAM ACCESSORY (MAIN PCB) BT001 R6P(AR)XICI D113 OS101 11E1-EIC RPM7137-WH5 TM101 BT002 EUR7613ZB0R R6P(AR)XICI Vout CP101 A2001WR2-7P I2C_SCL I2C_SDA R101 I2C_OFF R103 R106 AUDIO L AUDIO R 2.7K R130 R150 CLAMP SW Q103 47K 1/4W KTC3875S_Y_RTK FROM/TO CHROMA MICON IC C142 AT+5/5.6V...

  • Page 24: Chroma

    CHROMA SCHEMATIC DIAGRAM (MAIN PCB) FROM/TO COMB FILTER V_IN[YUV] VIDEO_IN1 U_IN[YUV] W831 Y_IN[YUV] VIDEO_IN3 R616 120 1/2W AT+5/5.6V REG C611 Q607 KTC3203_Y R657 R603 1/2W FROM/TO MICON AT+5/5.6V C_V_OUT_SW PROTECT Y_V_OUT_SW C641 P.CON+5V P.CON+5V REG C IN(Y/C) Y SW OUT SW_Y_OUT Q606 VIDEO_OUT...
  • Page 25 DEFLECTION SCHEMATIC DIAGRAM (MAIN PCB) FROM/TO DY 27FLAT V801 V.OUTPUT IC A68QCU770X66LRND IC401 LA78041 CP401 THERMAL PROTECTION B06B-DVS-L (LF) PUMP UP L402 ELH5L4113 25.0 12.0 25.0 R407 1.2K 1/4W R439 1K 1W (MATSUSHITA) TO CRT/SVM CD801 (CP803) CH823004 C425 560P FEEDBACK R414 R417...
  • Page 26 POWER SCHEMATIC DIAGRAM (MAIN PCB) D516 RELAY DRIVE TO CHROMA Q504 10.9 1SS133 KTC3198 CP509 R515 003P-2100 UNREG+12V 10K 1/4W W823 TO SOUND RY501 R517 D505 G5PA-1-SA(WEC) SOUND+B 30PRA60-FC SOUND_GND R501 R541 DEGAUSS COIL L503 DYD1-5075-82 1 7W 0.22 1W D517 R508 COIL,LINE FILTER...
  • Page 27 SOUND SCHEMATIC DIAGRAM (MAIN PCB) FROM TUNER/STEREO R302 W852 AUDIO MUTE SW_AUDIO_L Q1004 R301 2.7K KTA1504S_Y_RTK SW_AUDIO_R 2.7K R1011 2.2K W851 R1012 2.2K AUDIO MUTE FROM CHROMA Q1005 KTA1504S_Y_RTK W832 P.CON+8V[A] FROM/TO COMBI/FILTER/AV R1009 4.7K FROM MICON VOLUME TV_MUTE SOUND AMP IC IC1001 AN17822A W834...
  • Page 28 TUNER/STEREO SCHEMATIC DIAGRAM (MAIN PCB) TU001 ENG36A29GF FROM/TO CHROMA TUNER+5V TUNER_VIDEO P.CON+5V W833 FROM POWER R001 P.CON+B 68K 1/2W R002 68K 1/2W FROM/TO MICON SW_AUDIO_L SW_AUDIO_R TO SOUND L901 SW_AUDIO_L 100uH 0305 SW_AUDIO_R OUT SW IIC Decoder St.PLL Pilot Input Switch L-R Filter L-R Demod...
  • Page 29 COMB FILTER/AV SCHEMATIC DIAGRAM (MAIN PCB) VIDEO SW(Y) IC IC1502 FROM/TO MICON MM1501XNRE C1503 R1509 Vin1 Y/C_SW C1505 R1510 S_IN V.OUT C1514 Vin2 BUFFER Q1502 KTC3875S_Y_RTK R1508 C1502 C1511 VIDEO SW(C) IC 47P CH IC1503 C1512 MM1501XNRE FROM/TO CHROMA R1501 C1501 R1507 Vin1...
  • Page 30 CRT / SVM SCHEMATIC DIAGRAM (CRT PCB) L801_1 10uH 0305 FROM DEFLECTION R802 CP801B (CP801A) FROM DEFLECTION B2013H02-5P 2.7K 1/4W R803 RED OUT RED OUT 180V Q804 Q801 SCREEN 100.6 KTC4217 10K 2W C802 W836 KTC3199_Y CP806 123.0 005P-2100 TP022 0.001 D810 C811...
  • Page 31 VOLTAGE LIST IC101 IC601 IC902 IC1501 Volt. Volt. Volt. Volt. Volt. Volt. IC1502, IC1503 Volt. IC102 Volt. IC1001 Volt. IC199 Volt. IC401 Volt.
  • Page 32 VOLTAGE LIST TRANSISTOR Q103 Q402 Q405 Q408 Q409 Volt. Volt. Volt. Volt. Volt. 17.3 Q410 Q411 Q502 Q503 Q504 Volt. Volt. Volt. Volt. Volt. 114.7 115.1 10.9 159.4 115.5 Q505 Q507 Q508 Q509 Q512 Volt. Volt. Volt. Volt. Volt. 12.8 115.4 115.2 12.9...

  • Page 33: Deflection

    WAVEFORMS MICON 0.5V 10ms/div 13 1V 20µs/div 1 1V 0.1µs/div 2 1V 1µs/div 14 2V 20µs/div 9 1V 50µs/div 10 2V 20µs/div 3 1V 50µs/div 15 2V 20µs/div DEFLECTION 4 1V 0.1ms/div 11 0.5V 20µs/div 16 2V 5ms/div CHROMA 12 1V 2µs/div 7 1V 20µs/div 17 20V 5ms/div NOTE:...

  • Page 34: Sound

    WAVEFORMS 38 50V 20µs/div 25 2V 5ms/div 18 10V 10ms/div 19 20V 20µs/div 39 50V 20µs/div 26 5V 2ms/div SOUND 20 2V 20µs/div 27 5V 2ms/div 22 2V 5ms/div COMB/FILTER/AV 28 200mV 20µs/div 23 2V 5ms/div 21 200V 50µs/div CRT/SVM 37 50V 20µs/div 24 2V 5ms/div 29 200mV 20µs/div...

  • Page 35: Mechanical Exploded View

    MECHANICAL EXPLODED VIEW 102B 102C 102A 102C PCB110 (CRT PCB ASS'Y) PCB060 (VM COIL PCB ASS'Y) PCB010 (MAIN PCB ASS'Y) 101I 101F 101H 101C 203 101E 101J 101G 101B 101D 101A...

  • Page 36: Mechanical Replacement Parts List

    MECHANICAL REPLACEMENT PARTS LIST Location No. Part No. Description Reference No. 7A701A394A FRONT CABI ASS'Y 101A 701WPJD003 CABINET,FRONT 101B 712WPBA133 DOOR 101C 713WPA0362 GUIDE,REMOCON 101D 723000C948 SHEET,BUTTON 101E 723576A007 BADGE,BRAND 101F 735WPBB404 BUTTON,POWER 101G 735WPBB405 BUTTON,FRAME 101H 738WPA0148 STOPPER,BUTTON 101I 738WPA0149 STOPPER,BUTTON-POWER 101J 744WUA0020 SPRING,DOOR...

  • Page 37: Electrical Replacement Parts List

    ELECTRICAL REPLACEMENT PARTS LIST REF. NO. PART NO. DESCRIPTION Reference No. REF. NO. PART NO. DESCRIPTION Reference No. RESISTORS RESISTORS R001 R002T2683J 68K OHM 1/2W ! R452 R3X18A390J R,METAL OXIDE OHM 2W R002 R002T2683J 68K OHM 1/2W R453 R002T4103J 10K OHM 1/4W R004 R002T4221J 220 OHM 1/4W...
  • Page 38 ELECTRICAL REPLACEMENT PARTS LIST REF. NO. PART NO. DESCRIPTION Reference No. REF. NO. PART NO. DESCRIPTION Reference No. RESISTORS RESISTORS R627 R803R9101J 100 OHM 1/16W R907 R803R9224J 220K OHM 1/16W R628 R803R9101J 100 OHM 1/16W R908 R002T4101J 100 OHM 1/4W R629 R803R9682J 6.8K OHM 1/16W...
  • Page 39 ELECTRICAL REPLACEMENT PARTS LIST REF. NO. PART NO. DESCRIPTION Reference No. REF. NO. PART NO. DESCRIPTION Reference No. CAPACITORS CAPACITORS C411 CS0PCH413J 0.001 UF 50V CH C638 E62KU5100M UF 50V ! C412 P4N8FK222H CMPP C 0.0022UF 1.5KV C639 CS0PCH4L1J PF 50V CH ! C413 E02LF4102M 1000 UF 35V...
  • Page 40 ELECTRICAL REPLACEMENT PARTS LIST REF. NO. PART NO. DESCRIPTION Reference No. REF. NO. PART NO. DESCRIPTION Reference No. CAPACITORS DIODES C1512 E02LU2101M 100 UF 16V D612 D97U05R61B DIODE,ZENER MTZJ5.6B T-77 C1513 E02LU3101M 100 UF 25V D614 D97U06R21B DIODE,ZENER MTZJ6.2B T-77 C1514 E02LU1101M 100 UF 10V...
  • Page 41 ELECTRICAL REPLACEMENT PARTS LIST REF. NO. PART NO. DESCRIPTION Reference No. REF. NO. PART NO. DESCRIPTION Reference No. COILS &TRANSFORMERS SWITCHES L401 021U6D472K COIL 4.7 MH ! SP1001 070W457007 SPEAKER MSF-2D5D10W L402 022100027A COIL,LINEARITY ELH5L4113 ! SP1002 070W457007 SPEAKER MSF-2D5D10W L403 02DK000058 COIL,CHOKE...
  • Page 42 Printed in U.S.A.

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