Instruction/ maintenance manual of the product TRINITRON KV-20S90 Sony
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TRINITR ON ® COLOR TELEVISION SER VICE MANU AL B A-4D CHASSIS MODEL NAME REMO TE COMMANDER DESTINA TION CHASSIS NO. Self Diagnosis Supported model KV -20S90 9-965-905-01 KV -20S90 RM-Y155 US SCC-S27N.
— 2 — KV -20S90 / 21SE43C T ABLE OF CONTENTS Specifi cations ................................................................................................................ ....................... 3 W ar nings and Cautions.......................
— 3 — KV -20S90 / 21SE43C T elevision system American TV Standard/NTSC Channel covera ge VHF: 2-13/ UHF: 14-69/ CA TV : 1-125 Picture tube Flat T rinitron ® tube Visible screen size 20-inch pictu.
— 4 — KV -20S90 / 21SE43C W ARNINGS AND CA UTIONS CA UTION Shor t circuit the anode of the picture tube and the anode cap to the metal chassis, CR T shield, or carbon painted on the CRT , after removing the anode . W ARNING!! An isolation transf or mer should be used during any service to avoid possib le shock hazard, because of liv e chassis.
— 5 — KV -20S90 / 21SE43C SAFETY CHECK-OUT After correcting the original ser vice problem, perf or m the f ollowing saf ety checks bef ore releasing the set to the customer : 1. Check the area of your repair for unsoldered or poor ly soldered connections.
— 6 — KV -20S90 / 21SE43C Detected Symptoms SELF-DIA GNOSTIC FUNCTION *If a +B ov ercurrent is detected, stoppage of the vertical defl ection is detected simultaneously . The symptom that is diagnosed fi rst by the mircrocontroller is displa yed on the screen.
— 7 — KV -20S90 / 21SE43C Self-Diagnostic Screen Displa y F or errors with symptoms such as “po wer sometimes shuts off ” or “screen sometimes goes out” that cannot be confi rmed, it is possible to bring up past occurrences of f ailure on the screen for confi rmation.
— 8 — KV -20S90 / 21SE43C 1-1. REAR CO VER REMO V AL 1-2. CHASSIS ASSEMBL Y REMO V AL 1-3. SER VICE POSITION SECTION 1: DISASSEMBL Y Screw +BVTP 4x16 Chassis Assembly C Board A Board Screw +BVTP 4.
— 9 — KV -20S90 / 21SE43C 1. Discharge the anode of the CRT and remo ve the anode cap . 2. Unplug all interconnecting leads from the defl ection y oke , neck assembly , degaussing coils and CR T grounding strap . 3. Remov e the C Board from the CRT .
— 10 — KV -20S90 / 21SE43C The f ollowing adjustments should be made when a complete realignment is required or a new picture tube is installed. These adjustments should be perf or med with rated pow er supply voltage unless otherwise noted.
— 11 — KV -20S90 / 21SE43C 2-2. CONVERGENGE Bef ore star ting convergence adjustments: 1 P erf or m FOCUS, VLIN and VSIZE adjustments. 2. Set BRIGHTNESS control to minimum.
— 12 — KV -20S90 / 21SE43C D YNAMIC CONVERGENCE ADJUSTMENT Bef ore performing this adjustment, perform Horizontal and V er tical Static Conv ergence Adjustment. 1. Slightly loosen defl ection y oke scre w . 2. Remov e defl ection y oke spacers. 3.
— 13 — KV -20S90 / 21SE43C 2-5. METHOD OF SETTING THE SER VICE ADJUSTMENT MODE SER VICE MODE PROCEDURE 1. Standby mode (pow er off). 2. Press Display Channel 5 Sound V olume + P ower on the Remote Commander (press each button within a second). SER VICE ADJUSTMENT MODE IN 1.
— 14 — KV -20S90 / 21SE43C HOLD-DO WN READJUSTMENT If the setting indicated in Step 2 of Hold-Down Operation Confi rmation cannot be met, readjustment should be perf or med by altering the resistance value of R582 component mark ed with X . + IABL ABL T504 FBT range - ampmeter 3.
— 15 — KV -20S90 / 21SE43C C N 5 0 1 C 5 7 3 I C 5 2 1 J 2 0 0 J 2 0 3 D 5 0 2 R 3 1 1 D 5 4 1 D 5 7 2 R 5 4 5 R 5 4 3 R 5 5 2 C 5 6 2 C 5 6 4 R 5 0 4 I C 5 4 1 R 5 4 2 T 5 0 4 C N 5 0 2 R 5 4 9 D.
— 16 — KV -20S90 / 21SE43C 4-1. SETTING THE SER VICE ADJUSTMENT MODE 1. Standby mode (P ower off). 2. Press the follo wing buttons on the remote commander within a second of each other : Displa y Channel 5 Sound V olumne + P ower SER VICE ADJUSTMENT MODE ON 1.
— 17 — KV -20S90 / 21SE43C ADJUSTMENT ITEMS (1 OF 2) Reg # ITEM FUNCTION DATA RANGE INITIAL DATA VIDEO AVERAGE DATA 1 HSIZ Horizontal Amp. Adjustment 0-31 31 31 2 HPOS Horizontal Position Adjustment 0-31 21 20 3 VBOW Vertical Line Bowing Adj. 0-15 6 6 4 VANG Vertical line Bowing Slant Adj.
— 18 — KV -20S90 / 21SE43C Function Mode SERVICE Data ID0 25 Notes: No . 1-78 show the order that each adjustment mode may be selected while in Service Mode. Data Range shows the range of possib le setting f or each Adjustment Mode. Initial Data shows the standard settings f or each Adjustment Mode.
— 19 — KV -20S90 / 21SE43C V . FREQUENCY CHECK 1. Select video 1 with no signal input. 2. Set the conditions for a standard setting. 3. Connect the frequency counter to TP-508 or CN501 pin 6 (V D Y+) connector and ground. 4. Check that V . F requency shows 60 ± 4 Hz.
— 20 — KV -20S90 / 21SE43C V . SIZE ADJUSTMENT (VSIZ) 1. Input a crosshatch signal. 2. Activate the Service Adjustment Mode. 3. Select the VSIZ item with 1 and 4 . 4. Adjust v alue of VPOS with 1 and 4 f or the best vertical center . 5. Press MUTING then ENTER to sav e into the memory .
— 21 — KV -20S90 / 21SE43C 5-2. PRINTED WIRING BO ARD AND SCHEMA TIC DIA GRAM INFORMA TION All capacitors are in µF unless otherwise noted. pF : µµF 50WV or less are not indicated e xcept for electrolytics and tantalums . All electrolytics are in 50V unless otherwise specifi ed.
KV -20S90 / 21SE43C — 22 — 5-3. BLOCK DIA GRAM AND SCHEMA TICS BLOCK DIA GRAM O-ADJ I-DSC O-DSC 4 HD HP/PROTECT PWM-DC/VOLUME REF BOOST OUT 5 D573 +B 2 3 4 5 7 8 9 10 11 12 14 15 13 1 2 4 3 1 3 4 .
— 23 — KV-20S90 / 21SE43C 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 10 | 11 | 12 | 13 | 14 | 15 | 16 | 17 | 18 | 19 | 20 | 21 | 22 | A — B — C — D — E — F — G — H — I — J — K — L .
— 24 — KV -20S90 / 21SE43C (*) A BOARD VARIANT MODEL LIST REF. NO. LOCATION KV-20S90 KV-21SE43C C604 N-2 4700pF 250V 2200pF 250V C605 N-3 4700pF 250V 2200pF 250V C613 M-2 470µF 250V 330µF 400V C616 N-3 # 0.022µF 400V C617 N-3 # 220PF 1KV C638 N-1 0.
— 25 — KV -20S90 / 21SE43C A BOARD IC VOLTAGE LIST IC001 29 N/C 5 GND IC201 19 3.0 IC401 4 -12.9 PIN VOLT 30 4.9 6 4.9 PIN V OLT 20 2.6 PIN VOLT 5 0.0 1 0.9 31 4.9 7 GND 1 5.9 21 1.0 1 0.8 6 13.6 2 4.9 32 N/C 8 4.9 2 0.2 22 1.5 2 N/C 7 2.4 3 0.5 33 4.
— 26 — KV -20S90/21SE43C DEMOD YS1 SW <RGB SEL> CVCO APC <HUE> FSC <FSC SW> 45 APC FIL 47 XT AL 46 FSCOUT 44 VCC2 40 GND2 8 Y CLAMP 1 APED ACC DET . CHROMA AMP COLOR KILLER <<KILLER ID OFF>> ACC AMP BPF <C BPF> FIL TER ALIGNMENT CAL.
KV -20S90 / 21SE43C — 27 — 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 10 | 1 1 | 12 A — B — C — D — E — F — G — H — I [TUNING CONTROL, Y/C/J, PO WER SUPPL Y , DEFLECTION, TUNER/IF , A UDI.
— 28 — KV -20S90 / 21SE43C 1 | 2 | 3 | 4 | 5 | 6 | A — B — C — D — E — F — G — H — C BO ARD SCHEMA TIC DIA GRAM H KG G2 CV KR G1 G4 HV KB 1 1 2 3 4 5 6 7 8 9 1 2 3 4 5 6 1 2 3 4 5 4 5 6 7 8 9 10 11 12 1 I.
— 29 — KV -20S90 / 21SE43C 1 | 2 | 3 | 4 | 5 | A — B — C — [RGB DRIVE, CRT DRIVE] C C N 1 7 5 1 C N 1 7 5 4 J 1 7 5 1 L 1 7 5 1 C 1 7 5 2 R 1 7 6 4 R 1 7 6 5 R 1 7 5 9 C 1 7 5 5 C N 1 7 5 3 .
— 30 — KV -20S90 / 21SE43C 5-4. SEMICONDUCTORS 2SB709A-QRS-TX 2SD601A-QRS-TX 2SC3209LK-TP 2SA1091O-TPE2 2SD1292-T103 2SC3311A-QRST A 1SS83TD GP08DPKG23 R U4AM-T3 RGP10GPKG23 MA111-TX UDZ-TE-17.
— 31 — KV -20S90 / 21SE43C SECTION 6: EXPLODED VIEWS Components not identifi ed by a part number or description are not stoc ked because they are seldom required for r outine service . NO TE: The components identifi ed by shading and ! mark are critical for safety .
— 32 — KV -20S90 / 21SE43C SECTION 7: ELECTRICAL P ARTS LIST * Items marked with an asterisk are not stocked since they are seldom required f or routine service.
— 33 — KV -20S90 / 21SE43C NO TE: The components identifi ed by shading and ! mark are critical f or saf ety . Replace onl y with part number specifi ed . NO TE: Les composants identifi es par un trame et une marque ! sont critiques pour la securite .
— 34 — KV -20S90 / 21SE43C NO TE: The components identifi ed by shading and ! mark are critical f or saf ety . Replace onl y with part number specifi ed . NO TE: Les composants identifi es par un trame et une marque ! sont critiques pour la securite .
— 35 — KV -20S90 / 21SE43C NO TE: The components identifi ed by shading and ! mark are critical f or saf ety . Replace onl y with part number specifi ed . NO TE: Les composants identifi es par un trame et une marque ! sont critiques pour la securite .
— 36 — KV -20S90 / 21SE43C REF . NO . P ART NO . DESCRIPTION V ALUES REF . NO . P ART NO . DESCRIPTION V ALUES R054 1-216-073-00 RES-CHIP 10K 5% 1/10W R055 1-216-033-00 RES-CHIP 220 5% 1/10W R056 1-249-425-11 CARBON 4.7K 5% 1/4W R057 1-216-065-91 RES-CHIP 4.
— 37 — KV -20S90 / 21SE43C NO TE: The components identifi ed by shading and ! mark are critical f or saf ety . Replace onl y with part number specifi ed . A component identifi ed by this X symbol indicates that it has been carefully factory-selected to satisfy regulations regarding X-ray radiation.
— 38 — KV -20S90 / 21SE43C NO TE: The components identifi ed by shading and ! mark are critical f or saf ety . Replace onl y with part number specifi ed . NO TE: Les composants identifi es par un trame et une marque ! sont critiques pour la securite .
— 39 — KV -20S90 / 21SE43C Sony Corporation Sony T echnology Center T echnical Services Service Promotion Department 9-965-905-01 English 2001CS74119-1 Printed in USA © 2001.
1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 10 | 1 1 | 12 | A — B — C — D — E — F — G — H — I — A BO ARD SCHEMA TIC DIA GRAM 1 2 3 4 5 44 45 46 47 48 1 2 3 4 5 6 7 8 9 1 0 1 1 1 2 1 3 1 4 1 .
KV -20S90 / 21SE43C 13 | 14 | 15 | 16 | 17 | 18 | 19 | 20 | 21 | 22 | 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 4 5 6 1 2 1 2.
— 23 — J — K — L — M — N — O — P — 1 2 1 2 3 1 2 3 1 2 1 2 1 3 2 4 6 1 2 3 4 1 2 3 4 5 3 4 5 6 1 2 3 4 5 6 7 8 1 3 4 5 6 8 9 2 10 11 S 2 3 4 5 7 8 9 10 11 12 14 15 13 1 2 4 3 C692 C6.
1 2 3 4 5 6 2 3 4 5 6 7 1 2 3 4 5 6 7 8 1 2 3 4 5 6 C576 C562 C564 C531 L591 D541 D552 D561 D562 D574 L504 C552 C553 CN501 R553 D571 D581 C574 R311 R580 R586 C561 D320 D502 L503 CN502 C511 C541 C571 C.
4-081-454- 21 KV -13M42 KV -20M42 KV -20S 9 0 © 2001 b y Sony Corporation T rinitr on Color TV ® Operating Instructions.
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User Guide WA R N I N G T o r educe the ri sk of fir e or ele ctric s hock, do not expose the TV t o rain or moistur e. This symbo l is int ended to ale rt the user to the presen ce of unins ulated .
Co nnect ing Addi tion al E qu ipmen t NOTIFIC A TION This eq uipment has been tested and found to comply wit h the lim its for a Class B digital device pur suant to Pa rt 15 of the FCC R ules. These l imits ar e designed to provi de reasonab le p rotection again st h armful in terfe rence in a resid enti al ins talla tion .
User Guide Impo rtant Safe guar ds For your pr otection, please r ead these i nstructi ons completely , and keep this manual for future r eference . C arefully obser ve and com ply with all warn ings , cautions and instructio ns placed on the set, or descri bed in th e operating ins tructions o r servi ce manual.
Co nnect ing Addi tion al E qu ipmen t Overloading Do not overload w all outlet s, extension cor ds or conv enience r eceptacles beyond thei r capac ity , sin ce this can resu lt in fire or elect ric shock. A lways turn the set of f when it is not to be used.
User Guide Accessories Do not place the s et on an unsta ble car t, stand, tripod, bra cket, tabl e, or shelf . The set may fall, c ausing serio us injury to a child or an ad ult, and serious damag e to the set.
Co nnect ing Addi tion al E qu ipmen t Gro unding or Polarization This set may be equipped with a polarized alternating current line plug (a pl ug having one blade w ider than other). Thi s plug will fit i nto the power o utlet onl y one way . This is a safety f eature.
User Guide Service Damage Requiring Service Unplug t he set fr om the wa ll outlet and refer serv icing to qualifi ed se rvi ce pers onnel under the f ollow ing co nditio ns: • When the pow er cord or plu g is damaged or frayed. • If liq uid has been spilled into the s et or objects have falle n into the prod uct .
Co nnect ing Addi tion al E qu ipmen t.
Intro duction Trinitron ® Color TV Features . ........................... 1 Batteries for the Remote Control .............. ......... 2 About this Manual ................... ........................... 2 Conn ec ting Y our TV Basic Connections ......
User Guide.
Connecting Additional Equipment 1 Intr odu ction Congratulations on your purchase o f the Sony T rinitr on ® Color TV . Befor e you begin using this ma nual, please ch eck the model number locat ed on the r ear of your TV or on the fro nt cover of this ma nual.
2 Operating Instructions Batteries for the Remot e Contr ol Insert t wo AA (R6) batteries (supplied) into the re mot e control usin g the followi ng illust ration as a guide. About this Manual This manu al provides instructions to hel p you enjoy yo ur new TV .
Connecting Your TV 3 Connecting Y our TV Read this cha pter befor e settin g up you r TV for the first time. T his section covers basic connecti ons in additio n to any optio nal equipment you may be connecting.
4 Operat ing Inst ructi ons Connecting Additio nal Equipment TV and VCR 1 Connect the coaxial cable fr o m your TV antenna or cable se rvice to the IN jack on y our VCR. 2 Connect a coaxia l cable (not supplied) from the OUT jack on your VCR to the VHF/UHF IN jack on the TV .
Connecting Your TV 5 TV and Ca ble Bo x 1 Connect the coaxial cable fr om your cable service to the IN jack on your cable box. 2 Connect a coaxia l cable (not supplied) from the OUT jack on your cable box to the VHF/UHF IN jack on the TV .
6 Operat ing Inst ructi ons TV , VC R, and Cable bo x 1 Connect the coaxial cable fr om your cable service to the IN jack on your cable box. 2 Connect a coaxia l cable (not supplied) from the OUT jack on your cable box to the IN jack on you r VCR. 3 Connect a coaxia l cable (not supplied) from OUT on your VCR to VHF/ UHF jack on yo ur TV .
Connecting Your TV 7 Conn ectin g a Ca mcorde r Using Audio/V ideo cables (not supplied), connect AUDIO and VIDEO OUT on your cam cor der to AUDI O and VIDE O IN on your TV . Conn ectin g Headph ones Connect your headphones to the ja ck on the front of yo ur TV .
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9 Using the Remote Control and Ba sic Functions Using the Remote Contr ol and Basic Functions This sectio n shows you h ow to u se more advanced buttons on the remote control and how to u se the on-screen men us. . Button Desc ription Press when you w ant to turn the TV on and of f.
10 Operat ing Inst ructi ons Moves the cursor in the on-screen menu. Press to r estor e factory set tings w hile in the on-scr een menu. Pr ess when you w ant to change ch annels .
11 Using the Remote Control and Ba sic Functions Setting Up the TV Automatically After you have finished connectin g your TV , you will wa nt to run AUT O PROGRA M to set up you r channels, (KV -13M42, see page 1 7 for informa tion on A UTO PROGR AM).
12 Operat ing Inst ructi ons Quick Star t to the Menus The follow ing settings a r e avai lable in your on -screen menus: Menu Allow s yo u to Make adjustme nts to your picture settings. Choose from avai lable audi o featur es, s uch as Multi- Chan nel Sound , ( KV - 20S90 only).
Using the Menus 13 Using the Menus Thi s cha pte r sho ws t he opt ions av ailabl e f or set ting up and adj usti ng your TV . T o acces s a men u 1 Pr es s .
14 Operat ing Inst ructi ons Using the AUDIO menu KV -20S 90 onl y MTS Multi-Cha nnel TV So und STEREO: Select when vie wing a b ro adcast in ster eo. SAP: Listen to bilingu al or oth er Secon d Audio Pr ograms (SAP). MONO : Select to r educe nois e in a reas with poor r eception .
Using the Menus 15 Using the TIMER menu Exce pt K V -13M 42 DA Y L I G H T SA VING YES: Select in spring to compen sate for Dayl ight Sa vings. NO: Select i n fall at the end o f Daylight Savings. CURRENT TIME S ET W ith the m enu open: 1 Pr es s . 2 Pr es s F or f to cycle thr ough the day s, then pr ess .
16 Operat ing Inst ructi ons Using the SE T UP m enu P ARENT A L CONTROL The P A RENT AL CONTROL featur e provides paren ts several options for progr amming the TV to block sh ows based on their rating , (see page 1 8). FAV O R I T E CHANNEL Quick ac cess to favorite chan nels W ith the F A VORITE C HANNEL me nu open: 1 Pr ess .
Using the Menus 17 CHANNEL SET UP me nu CABLE ON: Select if you ar e r eceiving cable channel s w ith a C A TV cab le. OFF : Selec t if you are using a n antenn a. CHANNEL FIX 2 -6: Select w hen you want to c ontr ol all chan nel select ion thro ugh a cable box .
18 Operat ing Inst ructi ons Using P ARENT AL CONTROL The P A RENT AL CONTROL feature is designed to help par en ts monitor what their children watch on televisi on. This section shows y ou the dif ferent rating systems available and how to set your TV’s rating.
Using the Menus 19 MOVI E RA TINGS (U .S . model s only) This system defines the rating levels of movies sh own on the big scr een and those on prime cable ch annels. UNRA TED (U .S . model s only) Y ou have the optio n of blocking TV programs or mo vies that ar e not rated.
20 Operat ing Inst ructi ons ENGLIS H RA TINGS (Cana dian models only) These ratings ar e for Canadian pr ograms that ar e broadca st in Englis h. FRENCH RA TINGS (Cana dian models only) These ratings ar e for Canadian pr ograms that ar e bro adcast in French.
Using the Menus 21 Initial a ccess in to P ARENT AL CONTROL 1 In the SET UP menu, point the cursor to P ARENT A L CONTRO L and pr ess , (you will be aske d to set 4-digit passwor d for any future access into P ARENT AL CON TROL ). 2 Pr ess , then us e the but tons to enter a 4 -digit password.
22 Operat ing Inst ructi ons Setting t he RA TING If you ar e not famili ar with the Parental Guidelines rating system, you should use one of the following preselected categories: CHILD, YOUTH or YO UNG ADUL T . 1 Point the cursor to RA TING and p r ess .
Using the Menus 23 Rese tti ng yo ur pa ssw ord 1 Use the F or f buttons to m ove the cursor to CHAN GE P ASSWOR D and press . 2 Follow the direction s for , “Initial A ccess into P arental Control,” on page 21 , for inform ation on chan ging yo ur password.
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25 Other Info rmation Other Information T r oubleshooting If you ar e having a pr oblem with your TV , try the sug gestions below . If the problem persists, contact your near est Sony dealer . No picture, n o sound Make sur e the power c ord is plugged in.
26 Operat ing Inst ructi ons If, after reading these operating instructions, you have additional questio ns related t o the use of your Sony televisio n, please call our Dir ect Response Center at 1-800 -222-SONY (7669) (U.S. customers only) or (416) 499-SONY (7669) (Canad ian customers only).
27 Other Info rmation Specifications For all m odels (e xcept as n oted ) Design and specifi cation s are subje ct to c hange withou t not ice. T ele vision syst em Ame rican TV sta ndard/N TSC Chann .
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29 Index Inde x A AUDIO menu 14 AUTO PROGRAM 17 B Batter y Insta llation 2 BRIGHTNESS 13 C CAPTION VISION 16 CHANNEL FIX 17 CHANGE P ASSWORD 23 CHANNEL S ET UP 17 COLOR 13 Connections Anten na/Cabl e .
30 User Guide Operat ing Inst ructi ons T TIMER men u 15 Troubleshoot ing 25 TV Feature s 1 TV RATING 18 U U.S.A. RATINGS 20 UNRATED 19 V VIDEO menu 13.
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Sony Corp oration Pr inted in U. S.A..
PRINTING THE SE R VICE MANUAL The PDF of this service manual is not designed to be printed from cover to cove r . The pages vary in size, and must therefore be printed in sections based on page dimensions. NON-SCHEM A TIC P AGES Data that does NOT INCLUDE schematic diagrams are formatted to 8.
ON-SCREEN SEARCH OPTION All of the text within the service manual PDF is content searchable. This means that you can enter any text, word, phrase or reference number that appears in the manual, and the PDF software will search, fi nd and move the cursor to the location where you requested text fi rst appears.
TRINITR ON ® COLOR TELEVISION B A-4D CHASSIS MODEL NAME REMO TE COMMANDER DESTINA TION CHASSIS NO. HIST OR Y INFORMA TION FOR THE FOLLO WING MANU AL: 9-965-905-01 ORIGINAL MANU AL ISSUE D A TE: 4/2001 ANY REVISIONS AND UPD A TES T O THE ORIGINAL MANU AL ARE APPENDED T O THE END OF THE PDF FILE.
An important point after buying a device Sony TRINITRON KV-20S90 (or even before the purchase) is to read its user manual. We should do this for several simple reasons:
If you have not bought Sony TRINITRON KV-20S90 yet, this is a good time to familiarize yourself with the basic data on the product. First of all view first pages of the manual, you can find above. You should find there the most important technical data Sony TRINITRON KV-20S90 - thus you can check whether the hardware meets your expectations. When delving into next pages of the user manual, Sony TRINITRON KV-20S90 you will learn all the available features of the product, as well as information on its operation. The information that you get Sony TRINITRON KV-20S90 will certainly help you make a decision on the purchase.
If you already are a holder of Sony TRINITRON KV-20S90, but have not read the manual yet, you should do it for the reasons described above. You will learn then if you properly used the available features, and whether you have not made any mistakes, which can shorten the lifetime Sony TRINITRON KV-20S90.
However, one of the most important roles played by the user manual is to help in solving problems with Sony TRINITRON KV-20S90. Almost always you will find there Troubleshooting, which are the most frequently occurring failures and malfunctions of the device Sony TRINITRON KV-20S90 along with tips on how to solve them. Even if you fail to solve the problem, the manual will show you a further procedure – contact to the customer service center or the nearest service center
