SERVICE MANUAL FE-1A CHASSIS MODEL MODEL COMMANDER DEST CHASSIS NO. COMMANDER DEST CHASSIS NO. KV-25FX20A KV-29FX20A RM-887 Italian SCC-Q32B-A RM-887 Italian SCC-Q32A-A KV-25FX20B KV-29FX20B RM-887 French SCC-Q33B-A RM-887 French SCC-Q33A-A KV-25FX20D KV-29FX20D RM-887 SCC-Q31B-A RM-887 SCC-Q31A-A KV-25FX20E KV-29FX201D RM-887 Spanish...
ITEM MODEL Television System Stereo System Channel Coverage Color System ITALIA VHF : A-H2 (C) UHF : 21-69 PAL Italian B/G/H GERMAN Stereo B/G/H VHF : E2-E12 UHF : E21-E69 PAL, SECAM CABLE TV (1) : S1-S41 NTSC4.43, NTSC3.58 CABLE TV (2) : S01-S05, M1-M10, U1-U10 (VIDEO IN) L VHF : F02-F10 UHF : F21-F60 CABLE : B-Q B/G/H VHF : E2-E12...
3V dc 2 batteries IEC designation R6 (size AA) Dimensions Approx 44x209x23mm (w/h/d) Weight Approx 89g (Not including battery) Design and specifications are subject to change without notice. Model Name KV-25FX20A KV-25FX20B KV-25FX20D KV-25FX20E KV-25FX20K KV-25FX20R KV-29FX20U Item KV-29FX20A KV-29FX20B...
Page 4
Pin No Signal Signal level 21 pin connector ( Audio output B Standard level : 0.5V rms (right) Output impedence : Less than 1kohm* Audio output B Standard level : 0.5V rms (right) Output impedence : More than 10kohm* Audio output A Standard level : 0.5V rms (left) Output impedence : Less than 1kohm*...
EXPLOSÈES ET LES LISTES DE PIECES SONT D’UNE IMPORTANCE CRITIQUE POUR LA SÈCURITÈ DU FONCTIONNEMENT, NE LES REMPLACER QUE PAR DES COMPSANTS SONY DONT LE NUMÈRO DE PIÈCE EST INDIQUÈ DANS LE PRÈSENT MANUEL OU DANS DES SUPPLÈMENTS PUBLIÈS PAR SONY.
FE-1A SELF DIAGNOSTIC SOFTWARE The identification of errors within the FE-1A chassis is triggered in one of two ways :- 1: Busy or 2: Device failure to respond to IIC. In the event of one of these situations arising the software will first try to release the bus if busy (Failure to do so will report with continuous flashing LED) and then communicate with each device in turn to establish if a device is faulty.
The operating instructions mentioned here are partial abstracts SECTION 1 GENERAL from the Operating Manual. The page numbers of the Operating Instruction Manual remain as in the manual. Getting Started - Overview Advanced Operation - Advanced Presetting Overview of Remote Control Buttons Manually Tuning the TV Use this function to preset channels or a video input source one by one to the programme order of your choice.
Advanced Operation - Advanced Presetting Advanced Operation - Advanced TV Operation Fine Tuning Channels Adjusting the Picture Normally, the automatic fine tuning (AFT) function is operating. If the picture is distorted, however, you can manually fine Although the picture is adjusted at the factory, you can modify it to suit your own taste. tune the TV to obtain a better picture reception.
Advanced Operation - Advanced TV Operation Advanced Operation - Advanced TV Operation Adjusting the Sound Using the Sleep Timer Although the sound is adjusted at the factory, you can modify it to suit your own taste. You can select a time period for the TV to switch itself automatically into the standby mode. PICTURE CONTROL PICTURE CONTROL Press the MENU button on the remote control to display the menu...
Press the colour button (red, green, yellow or blue) on the remote control to access the corresponding page. “PlayStation” is a product of Sony Computer Entertainment, Inc. “PlayStation” is a trademark of Sony Computer Entertainment, Inc. Decoder...
• Replace the batteries. The standby indicator on the TV • Contact to your nearest Sony service centre. flashes. • If you continue to have these problems, have your TV serviced by qualified personnel. • NEVER open the casing yourself.
2-4. H BOARD REMOVAL 2-5. S1 BOARD REMOVAL Release the clip indicated To release, push the claws in the direction of the arrow as indicated. EHT Lead >20mm >20mm...
2-6. PICTURE TUBE REMOVAL Two DGC holders 7 Degaussing coils 8 2 Chassis assy Spring Extension 9 C Board 3 VM Board Neck assy 5 Deflection yoke 10 Four PT screws (M) Anode cap 1 11 Picture tube Cushion • REMOVAL OF ANODE-CAP Note : Short circuit the anode of the picture tube and the anode cap to the metal chassis, CRT shield or carbon paint on the CRT, after removing the anode.
REMOVAL AND REPLACEMENT OF THE MAIN-BRACKET For safety reasons, on no account should the plates be £ BOTTOM PLATES. removed and not refitted after servicing. REMOVING THE PLATES REFITTING THE PLATES In the event of servicing being required to the solder side of the A Board printed Because the plates differ in size it is important that the correct plates are refitted in wiring board, the bottom plates fitted to the main chassis bracket require to be their original location.
SECTION 3 SET-UP ADJUSTMENTS • When complete readjustment is necessary or a new Carry out the following adjustments in this order : picture tube is installed, carry out the following 3-1. Beam Landing adjustments. 3-2. Convergence • Unless there are specific instructions to the contrary, 3-3.
3-2. CONVERGENCE • Tilt the V.STAT magnet and adjust the static convergence by opening or closing the V.STAT magnet. Preparation: • Before starting this adjustment, adjust the focus, horizontal size and vertical size. • Minimize the Brightness setting. • Input a dot pattern from the pattern generator. Horizontal and vertical static convergence If the V.STAT magnet is moved in the direction of the a and b arrows, the Red, Green and Blue points move as...
Page 18
• Operation of the BMC (Hexapole) magnet. V.STAT Purity BMC (Hexapole) • The respective dot position resulting from moving each magnet interact, so be sure to perform adjustment whilst tracking. Use the H.STAT VR to adjust the Red, Green and Blue dots so that they coincide at the centre of the screen (by moving the dots in the horizontal direction).
Screen corner convergence. 3-3. FOCUS • If you are unable to adjust the corner convergence properly, Receive a television broadcast signal. correct them with the use of permalloy assemblies. Normalise the picture setting. Adjust the focus control on the flyback transformer for the best focus at the centre of the screen.
SECTION 4 CIRCUIT ADJUSTMENTS 4-1. ELECTRICAL ADJUSTMENTS PICTURE Service adjustments to this model can be performed R - Drive using the supplied Remote Commander RM-887. G - Drive B - Drive HOW TO ENTER INTO SERVICE MODE R - cut - off G - cut - off Turn on the main power switch and enter into the stand-by B - cut - off...
Page 21
SUB COLOUR ADJUSTMENT TECHNICAL Receive a PAL colour bar signal. GD - Secam Connect an oscilloscope to Pin 3 of CN504 [A Board]. BD - Secam Enter into the ‘Picture’ service menu. RC - Secam Adjust the ‘Sub Colour’ data so that the Cyan, Magenta and GC - Secam Blue colour bars are of equal levels as indicated below.
Page 22
V SIZE BELL FILTER ADJUSTMENT (Secam models only) Note : Ensure that the TV set has been powered up for at least 1 minute to allow for drift before carrying out the following V LIN adjustment. Input a video SECAM Colour Bar signal via AV1. Connect an oscilloscope to pin 1 of CN504 [R-OUT] on the S CORRECTION A board.
4-2. TEST MODE 2: Is available by pressing ‘TEST’ button twice, OSD ‘TT’ appears. The functions described below are available by pressing the two numbers. To release the Test mode 2, press 0 twice, or switch the TV into stand-by mode, or press the TV button on the remote commander.
Page 24
5-1 BLOCK DIAGRAMS (1) CN201 R AUDIO TO SPEAKERS L AUDIO POWER SUPPLY, DEFLECTION TUNING, CN208 PROCESSOR, VIDEO SIGNAL PROCESSOR AV IN/OUT MUTE PH601 ISOLATOR DY ASSY L AUDIO TO H1 CN606 IC501 V OUTPUT BOARD R AUDIO CN501 CN908 TO F V- DY+ V- DY+...
5-5. IC BLOCK DIAGRAMS A BOARD IC201 TDA7495 A BOARD IC501 STV 9379 VOLUME FLYBACK GENERATOR OP AMP POWER AMPLIFIER MUTE/STBY PROTECTIONS THERMAL PROTECTION VOLUME OP AMP A BOARD IC101 TDA9817/V1 A BOARD IC606 STR-F6654 VOLTAGE TUNER REFERENCE DETECTOR START O.V.P LATCH DRIVE...
A BOARD COMMON Parts List : Parts common to all models listed in this manual ....... 58 A BOARD VARIANT Parts List : Parts that belong only to the model specified Model KV-25FX20A/25FX20D/25FX20E KV-29FX20A/29FX20D/29FX20E ....................65 KV-25FX20B/29FX20B ....................66 KV-25FX20K/29FX20K ....................
Page 38
The components identified by shading and marked are critical for safety Replace only with the part number specified. REF. NO. PART.NO DESCRIPTION REMARK REF. NO. PART.NO DESCRIPTION REMARK C313 1-163-233-11 CERAMIC CHIP 18PF C518 1-106-375-12 MYLAR 0.022MF 250V C314 1-164-222-11 CERAMIC CHIP 0.22MF C519 1-163-275-11 CERAMIC CHIP 0.001MF C316...
Page 39
The components identified by shading and marked are critical for safety Replace only with the part number specified. REF. NO. PART.NO DESCRIPTION REMARK REF. NO. PART.NO DESCRIPTION REMARK C641 1-111-034-11 ELECT 220MF D202 8-719-914-43 DIODE DAN202K C642 1-104-665-11 ELECT 100MF D203 8-719-914-43 DIODE DAN202K C643...
Page 40
The components identified by shading and marked are critical for safety Replace only with the part number specified. REF. NO. PART.NO DESCRIPTION REMARK REF. NO. PART.NO DESCRIPTION REMARK D610 8-719-067-78 DIODE RN3Z-LF014-302 < COIL > D613 8-719-911-19 DIODE 1SS119-25 D619 8-719-043-76 DIODE AK04V0 L102 1-414-182-11 INDUCTOR...
The components identified by shading and marked are critical for safety Replace only with the part number specified. REF. NO. PART.NO DESCRIPTION REMARK REF. NO. PART.NO DESCRIPTION REMARK Q016 8-729-920-72 TRANSISTOR 2SA1037K-T-146-QR R019 1-216-295-91 SHORT Q017 8-729-920-72 TRANSISTOR 2SA1037K-T-146-QR R020 1-216-049-91 RES,CHIP 1/10W Q018...
Page 42
The components identified by shading and marked are critical for safety Replace only with the part number specified. REF. NO. PART.NO DESCRIPTION REMARK REF. NO. PART.NO DESCRIPTION REMARK R090 1-216-206-00 RES,CHIP 2.2K 5% 1/8W R314 1-216-025-91 RES,CHIP 1/10W R091 1-216-081-00 RES,CHIP 1/10W R315 1-216-075-00 RES,CHIP...
Page 43
The components identified by shading and marked are critical for safety Replace only with the part number specified. REF. NO. PART.NO DESCRIPTION REMARK REF. NO. PART.NO DESCRIPTION REMARK R427 1-216-113-00 RES,CHIP 470K 5% 1/10W R540 1-215-861-00 METAL OXIDE R429 1-216-041-00 RES,CHIP 1/10W R542 1-216-089-91 RES,CHIP...
The components identified by shading and marked are critical for safety Replace only with the part number specified. REF. NO. PART.NO DESCRIPTION REMARK REF. NO. PART.NO DESCRIPTION REMARK < RESISTOR > < VARIABLE RESISTOR > R109 1-216-061-00 RES,CHIP 3.3K 5% 1/10W RV101 1-241-765-11 RES, ADJ, CARBON 22K...
The components identified by shading and marked are critical for safety Replace only with the part number specified. REF. NO. PART.NO DESCRIPTION REMARK REF. NO. PART.NO DESCRIPTION REMARK < COIL > < THERMISTOR > L105 1-408-603-31 INDUCTOR 10UH THP601 £ 1-810-961-11 THERMISTOR, POSITIVE <...
The components identified by shading and marked are critical for safety Replace only with the part number specified. REF. NO. PART.NO DESCRIPTION REMARK REF. NO. PART.NO DESCRIPTION REMARK < TRANSISTOR > < TUNER > Q108 8-729-120-08 TRANSISTOR 2SC1623-L5L6 (KV-25FX20R) TU101 8-598-432-00 TUNER (BTP-AC411) 8-725-901-81 TRANSISTOR 2SC2412K (KV-29FX20R)
The components identified by shading and marked are critical for safety Replace only with the part number specified. REF. NO. PART.NO DESCRIPTION REMARK REF. NO. PART.NO DESCRIPTION REMARK < TRANSFORMER > D715 8-719-991-33 DIODE 1SS133T-77 D716 8-719-991-33 DIODE 1SS133T-77 T533 1-433-906-11 TRANSFORMER, HORIZONTAL LINEAR D717 8-719-991-33 DIODE 1SS133T-77...
The components identified by shading and marked are critical for safety C VM Replace only with the part number specified. REF. NO. PART.NO DESCRIPTION REMARK REF. NO. PART.NO DESCRIPTION REMARK R713 1-247-903-00 CARBON 1/4W C1804 1-126-964-11 ELECT 10MF R714 1-216-464-11 METAL OXIDE C1805 1-137-366-11 FILM 0.0022MF...
The components identified by shading and marked are critical for safety Replace only with the part number specified. REF. NO. PART.NO DESCRIPTION REMARK REF. NO. PART.NO DESCRIPTION REMARK D1902 8-719-991-33 DIODE 1SS133T-77 R1704 1-216-051-00 RES,CHIP 1.2K 5% 1/10W D1903 8-719-991-33 DIODE 1SS133T-77 R1705 1-216-031-00 RES,CHIP 1/10W...
The components identified by shading and marked are critical for safety Replace only with the part number specified. REF. NO. PART.NO DESCRIPTION REMARK REF. NO. PART.NO DESCRIPTION REMARK R1912 1-216-121-91 RES,CHIP 1/10W R1913 1-216-049-91 RES,CHIP 1/10W *A-1646-184-A, H Board Complete R1914 1-216-057-00 RES,CHIP 2.2K 5%...
Page 56
The components identified by shading and marked are critical for safety Replace only with the part number specified. REF. NO. PART.NO DESCRIPTION REMARK REF. NO. PART.NO DESCRIPTION REMARK...