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Philco PF2118 Service Manual

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SERVICE MANUAL Colour Television
Specifications
Power Source . . . . . . . . . AC220V, 50Hz / 60Hz
Receiving System . . . . . . PAL (M/M, N/N), NTSC (M/M)
Channel Coverage
Antenna mode VHF: CH02-CH13, UHF: CH14-CH69
CATV mode
VHF band: CH01-CH13, Mid band: CH14-CH22
Super band: CH23-CH36, Hyper band: CH37-CH64
Ultra band: CH65-CH94 and CH100-CH125
Low mid band: CH95-CH99
Aerial Input Impedance . . 75Ω
Input Terminals
AV1 (Video): Phono jack ✕ 1
AV1 (Audio): Phono jack (R/L) ✕ 1 set
AV2 (Video): Phono jack ✕ 1
AV2 (Audio): Phono jack (R/L) ✕ 1 set
Output Terminals
Video Monitor Output: Phono jack ✕ 1
Audio Monitor Output: Phono jack (R/L) ✕ 1
Headphone Jack: Mini stereo jack ✕ 1
Sound Output (RMS) . . . . 3W + 3W
Speakers . . . . . . . . . . . 5cm x 9cm x 2 pcs.
Dimensions . . . . . . . . . 596(W) X 493(H) X462(D) mm
Weight . . . . . . . . . . . . . approx. 20.5 Kg
Specifications subject to change without notice.
BF4J
FILE NO.
Model No. PF2118
Service Ref. No.
JXMRR
Product Code:
映像メディア（事）デザイン部
Original Version
Chassis Series: LA7-A
Give complete "SERVICE REF. NO." for
parts order or servicing. It is shown on the
rating plate at the cabinet back of the unit.
This T.V. receiver will not work properly in
foreign countries where the television trans-
mission system and power source differ from
the design specifications. Refer to the speci-
fication table.
(Argentina)

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Summary of Contents for Philco PF2118

  • Page 1 FILE NO. SERVICE MANUAL Colour Television Model No. PF2118 (Argentina) Service Ref. No. JXMRR Specifications Product Code: Power Source ..AC220V, 50Hz / 60Hz Receiving System ..PAL (M/M, N/N), NTSC (M/M) 映像メディア（事）デザイン部...

  • Page 2: Table Of Contents

    Contents Safety Notice ................2 Chassis Block Diagram .

  • Page 3: Chassis Block Diagram

    Chassis Block Diagrams MAIN SIGNAL PROCESSING CIRCUIT...
  • Page 4 Chassis Block Diagrams IC 601 POWER SUPPLY IC (STRW6753)

  • Page 5: Ic Block Diagrams

    IC Block Diagrams IC201 < IF/Video/Chroma/Def./CPU > LA76931...
  • Page 6 IC Block Diagrams IC501<Vertical.Output> LA78040 T her mal P r otection A MP P ump S ample application cir cuits L A 78040B /040/041/045 L A 78040B /040/041/045 IC001<AUDIO AMP> LA42032 +V cc +V cc -V cc Vref Vr ef S ample application cir cuits2 L A 78040B /040/041/045 +V cc(24V)
  • Page 7 IC Block Diagrams IC3401　LA72703 STEREO DECODER...
  • Page 8 R2A15908SP IC Block Diagrams IC3402 AUDIO SIGNAL PROCESSOR ROUT INR5 Mode selector INR4 LOUT TRER INR3 Surround Input selector INR2 BASSR1 INR1 BASSR2 mute BASSL2 INL1 Mono /Stereo INL2 BASSL1 INL3 TREL Input selector INL4 DGND INL5 Input gain control IGOUTL mute 0~+20dB...

  • Page 9: Service Adjustments

    Service Adjustments General This set has an On-screen Service Menu system included in the CPU that allows remote operation for most of the service adjustments. IC802 (EEPROM) Replacement When IC802 (EEPROM) is replaced, IC801 (CPU) will automatically write the initial reference data into IC802 for basic TV operation. However, the bus data should be checked and some bus data should be set up before attempting the service adjustments.
  • Page 10 Service Adjustments On-screen Service Menu Following table shows the initial values which have been stored in the CPU ROM, and items for the service adjustments. When IC802 (EEPROM) is replaced, check the bus data to confirm they are the same as below. The shaded menu should be checked and be set up or readjusted according to the procedures described in the following pages.
  • Page 11 Service Adjustments Item Initial value Range Description YGAM 00～03 Y Gamma Start PRES 00～03 AV Mode Pre Shoot adj OVERS 00～03 AV Mode Over Shoot adj RFCO +1 -2～+1 Difference value of RF Coring Gain PRESN 00～03 RF Mode Pre Shoot adj OVERSN 00～03 RF Mode Over Shoot adj TINT -8 -16～+15 Tint SHRF +5 -16～+15 Difference value of RF sharpness RFCOL -16～+15 Difference value of TV color TEXC +1 -4～+3 OSD　TEXT　Contrast AUFL 00 00～01 Auto. Flesh COOP 07...
  • Page 12 Service Adjustments Item Initial value Range Description CBPF 00 0~3 C.BPF ADJUST C-KILL 0~1 C_KILL ON G-YAMP 0~15 G-Y AMP B-YDPM -16～+15 Difference value of PALM B-Y DC Level R-YDPM -16～+15 Difference value of PALM R-Y DC Level YTH 0~3 Y TH YGAIN 0~3 Y Gain RWIDTH 0~3 R Width ROFSET 0~3 R Offset BWIDTH 0~3 B Width BOFSET 0~3 B Offset RGBTMP 0~1...
  • Page 13 Service Adjustments Important Notice: Do not attempt to adjust service adjustments not listed on below otherwise it may cause loss of performance and for correct operation. Item 01 [RFAGC] AGC Item 04 [V-SIZ] VERTICAL SIZE NOTE: Do not attempt this adjustment with weak signal. 1.
  • Page 14 Service Adjustments Items 16-23 GREY SCALE (1) Receive a monochrome circular pattern. (2) Set the brightness and colour to normal, contrast to maximum. (3) Enter to the service mode. (4) Set each value of Item-16 SBIAS, 17 RBIAS, 18 GBIAS, 19 BBIAS mode to 00. Set each value of Item-20 RDRIV mode to 64, 21 GDRIV to 08.
  • Page 15 Service Adjustments Service Adjustment-2 (MTS Adjustment) 1. Enter the Service Menu While pressing the MENU button on the televi- sion, press the Number Key 3 on the remote control unit. The Service Menu now appear. VOLUME OFFSET TREBLE BASS ADJUST: - /+ CHOOSE: ▲▼...
  • Page 16 Service Adjustments Service Adjustment-3 FINE TUNING This adjustment is used to do a fine tuning of the channels with poor reception after they have been stored by the automatic tuning. This function is available for one channel only and the fine-tuned channel is memorized into IC802 (EEPROM). MENU 1.
  • Page 17 Service Adjustments Service Adjustment-4 Protection Circuit This TV set has a built-in power supply protection circuit. FOCUS ADJUSTMENT It is provided to protect the TV set in case of a power supply circuit malfunctions. When something abnormality 1. Receive the monochrome circular pattern. occurs during TV reception, the TV set goes to the stand- 2.

  • Page 18: Purity And Convergence Adjustment

    Purity and Convergence Adjustment CAUTION: The Convergence and Purity adjustments have been made at the factory. Readjustment should be made only after picture tube or deflection yoke replacement, following the steps below: PURITY ADJUSTMENT 8. Tighten the mounting screw of the Deflection Yoke. Adjust 1.

  • Page 19: Cabinet Parts List

    Cabinet Parts List Note: Parts order must contain Service Ref. No., Part No., and descriptions. JXMRR Key No. Part No. Description Key No. Part No. Description 1AA2BUM0557-- BUTTON POWER 1S00620 COIL SPRING 映像メディア（事）デザイン部 1AA2DEM0446-- DEC IND 1AA2DDM0197-- DOOR 1AA2BUM0294-- BUTTON UNITED 1AV2LA9FA01-- LATCH PUSH or 1LG2LA9FA01--...

  • Page 20: Chassis Electrical Parts List

    Chassis Electrical Parts List Product safety should be considered when a component replacement is made in any area of a receiver. Components indicated by a mark in this parts list and the circuit diagram show components whose value have special significance to product safety. It is particularly recommended that only parts specified on the following parts list be used for components replacement pointed out by the mark.
  • Page 21 Chassis Electrical Parts List Safety Location Part No. Description Safety Location Part No. Description A013 013BF4E ELECTRICAL PARTS C234 CK1H103KGQBNZ CERAMIC 0.01U K 50V L901 1LB4L81B02500 COIL,DEGAUSSING C240 CK1E104KGQBNZ CERAMIC 0.1U K 25V L901 1LB4L81B03000 COIL,DEGAUSSING C243 CK1H103KGQBNZ CERAMIC 0.01U K 50V Q901 BXXAVB591TFQ- CRT-AS A51ELD031XA11 C244 CEXLB1A331VDN ELECT 330U M 10V SP901 1LB4A10B05600 SPEAKER,8 C245 CEXLB1H1R0VDN ELECT 1U M 50V SP902 1LB4A10B05600...
  • Page 22 Chassis Electrical Parts List Safety Safety Location Part No. Description Location Part No. Description D103 DZRD36EB1---N ZENER DIODE RD36EB1 C508 CK1H103KGQBNZ CERAMIC 0.01U K 50V D103 DZXLBB034---N ZENER DIODE MTZJ36A C510 CFXLB2A224ZBN POLYESTER 0.22U K 100V D103 DZXLBXA36A--N ZENER DIODE ZJ36AST C510 CH2A224JAHANN MT-COMPO 0.22U J 100V D103 DZXLBZA36A--N ZENER DIODE MTZJ36A C511 CGXLB1J224YAN MT-POLYPRO 0.22U J 63V D108 DZUDZS12B---G ZENER DIODE UDZS-TE-1712B C511 CH1H224JAGANN MT-COMPO 0.22U J 50V D108...
  • Page 23 Chassis Electrical Parts List Safety Safety Location Part No. Description Location Part No. Description D614 DD1S2076A---N DIODE 1S2076A-E KE-2 1LB4J30B0040N TERMINAL,PLUG KG-2 1AV4J30B0250N TERMINAL,PLUG D615 DDES1Z------N DIODE ES1Z KG-2 1LB4J30B0040N TERMINAL,PLUG D615 DDEU01Z-----N DIODE EU01Z KG-3 1AV4J30B0250N TERMINAL,PLUG D615 DDXLBB041---N DIODE EU1 D616 DDEG01C-----N DIODE EG01C KG-3 1LB4J30B0040N TERMINAL,PLUG...
  • Page 24 Chassis Electrical Parts List Safety Safety Location Part No. Description Location Part No. Description R020 RDB2R20JPBANN CARBON 2.2 JA 1/4W R3435 RGF1002JTCANZ MT-GLAZE 10K JA 1/10W R021 RDB2R20JPBANN CARBON 2.2 JA 1/4W R3436 RDD47R0JPAANN CARBON 47 JA 1/6W R024 RGFR000ZTCANZ MT-GLAZE 0.000 ZA 1/10W R3437 RDD47R0JPAANN CARBON 47 JA 1/6W R1012 RGF5600JTCANZ MT-GLAZE 560 JA 1/10W R3438 RGF4701JTCANZ MT-GLAZE 4.7K JA 1/10W R103 RSXAV1393JDAK OXIDE-MT 39KJB 1W R3439 RGF1001JTCANZ MT-GLAZE 1K JA 1/10W R106...
  • Page 25 Chassis Electrical Parts List Safety Safety Location Part No. Description Location Part No. Description R635 RDD1002JPAANN CARBON 10K JA 1/6W X211 1LB4V10B0040N OSC,CRYSTAL 4.433619MHZ X211 1LB4V10B0180N OSC,CRYSTAL 4.433619MHZ R636 RDD1003JPAANN CARBON 100K JA 1/6W X3401 1AV4F31B0540N CERAMIC FILTER 4.5MHZ R637 RDD4701JPAANN CARBON 4.7K JA 1/6W X801 1AV4V10B0560N OSC,CRYSTAL 32.768KHZ R638 RSXAV23R9JDAK OXIDE-MT 3.9JB 2W X801 1LB4V10B0190N OSC,CRYSTAL 32.768KHZ R639 RSXAV11R0JDAK OXIDE-MT 1.0JB 1W...
  • Page 26 Chassis Electrical Parts List Safety Location Part No. Description Safety Location Part No. Description R715 RDA2701JPCANN CARBON 2.7K JA 1/2W R716 RDA2701JPCANN CARBON 2.7K JA 1/2W R717 RDA2701JPCANN CARBON 2.7K JA 1/2W R721 RGF2200JTCANZ MT-GLAZE 220 JA 1/10W R723 RDD4700JPAANN CARBON 470 JA 1/6W R724 RSXAV2123JDAK OXIDE-MT 12KJB 2W R732 RDD10R0JPAANN CARBON 10 JA 1/6W R741 RDB4700JPBANN CARBON 470 JA 1/4W R742 RGF1501JTCANZ MT-GLAZE 1.5K JA 1/10W R744 RGF1500JTCANZ MT-GLAZE 150 JA 1/10W R751...
  • Page 27 July/’08...
  • Page 28 IC3402 R3457 C3453 NOTES; EM4.7LBVD R3438 C3410 AUDIO_R INR5 ROUT IN_R IC3401 1/10GJ4.7KC EM1LBVD 1. RESISTORS SPECIFIED WITH RESISTANCE VALUE ARE "1/6DJ" R3455 C3452 LA72703 R3458 EM4.7LBVD 2. RESISTORS SPECIFIED WITH TYPE OF RESISTOR, TOLERANCE C3411 AV1_R INR4 LOUT IN_L C3451 16KK0.1GQ AND RESISTANCE VALLUE ARE "1/4".
  • Page 29 Waveforms & Voltages Component Location (On the Main Board) IC001 (AUDIO AMP.) R628 Pin-1 10V 2.9V 0.5V 10.7V 4.6V 4.7V D612 R477 4.7V 4.5V T471H11 R629 D613 D593 R477A IC601AH3 R594 IC201 (IF/VIDEO/CHROMA/CPU) C615 R620 Pin-1 2.0V 2.4V 3.1V 2.2V 2.3V 2.3V 2.3V...