Manuel d'utilisation / d'entretien du produit 6420FE du fabricant Emerson
Aller à la page of 52
20" COLOR TELEVISION SERVICE MANUAL 6420FE EWF2004.
IMPORTANT SAFETY NOTICE Proper servic e and repair is important to the safe, relia ble operation of all Funai Equipm ent. The service proce dures recomm ended by Funai and de- scribed in this service ma n ual are effective methods of performin g service operations.
1-1 L6200S P SPECIFICATIONS <TUNER> ANT . Input --- ----------- ----- 75ohm Unbal., F ty pe Reference Lev el ------ ----- 20Vp -p (CRT Green Ca thode) T est Input Signa l --------- - 400Hz 30 % modulati on <DEFLECTION> <VIDEO & CHROMA> <A UDIO> All ite ms are m easured acros s 8 Ω load a t spea ker output ter mi nal.
2-1 L6115IM P IMPORTANT SAFETY PRECAUTIONS Prior to shi pment from the fact ory, our produ cts are str ictly in spec ted for reco gnized p roduct sa fety and elec trical codes o f the coun tries in wh ich the y are to be so ld.
2-2 L6115IM P ing is per formed tha t invol ves B+, ho rizontal de - flection or hig h voltage . Correct ope ration of th e X- radiation p rotec tion circ uits also mus t be rec on- firmed each time t hey are servic ed. (X-r adiation protecti on cir cuits a lso m ay be called "hor izonta l disable " or "hol d down.
2-3 L6115IM P Precautions during Servi cing A. Parts i dentifi ed by th e ( # ) symbo l are criti cal fo r safety. Replace o nly with part numb er sp ecified. B. In addit ion to sa fety, other p arts an d assembl ies are speci fied for c onform ance with regulati ons ap- plying to sp uriou s radiation.
2-4 L6115IM P Safety Check after Servi cing Exami ne the are a surro unding the repai red locati on for damage or deter ioratio n. Obser v e that screws, par ts and wire s have been retur ne d to or igin al posi - tions.
3-1 L14S T A STANDARD NOTES FOR SERVICING Circuit Board I ndications a . The o utput p in of th e 3 pin Reg ulator ICs i s indic at- ed as shown. b. For othe r ICs, pin 1 a nd ever y fifth pin are in dicat- ed as shown. c . The 1st pin of ev ery mal e conne ctor is i ndicated as shown.
3-2 L14S T A 3 . The f lat pac k-IC on the CBA is affi xed with glue, s o be care ful not to break or d amage t he foil of each pin or the sol der lan ds under the IC when remov- ing it . With Soldering Ir on: (1) Using des oldering br aid, rem ove the sol der from all pins of t he fl at pack-I C.
3-3 L14S T A (4) Bottom of the fl at pack -IC is fi xed wi th glue to t he CBA; when remov ing e ntire flat pack-I C, firs t apply sold ering ir on to cente r of the f lat pac k-IC an d he at up. Then r emove ( glue will be mel ted). (Fig . S-1-6 ) (5) Releas e the flat pa ck-I C from the CB A using twee- zers.
3-4 L14S T A Instruc tions f or Handl ing Semiconductors Electr ostatic brea kdown of the semi condu ctors m ay occur due to a pote ntial di fference caused by electro - static charge duri ng unpa cking or repai r work .
4-1 L240 1DC CABINET DISASSEMBLY INSTRUCTIONS 1. Disassembly Flowchart This flo wcha r t indicates t he disasse mb ly step s f or the cabine t par t s, and the CBA in order to gain acce ss to item(s ) to be ser viced. W hen r eassembling, follow the steps in rev e rse order .
4-2 L240 1DC Fig. 1 (S-1) (S-1) (S-1) (S-1) (S-4) (S-2) [1] Rear Cabinet Fig. 2 (S-1) (S-1) (S-1) (S-1) (S-2) (S-4) (S-1) [1] Rear Cabinet Fig. 3 [3] Main CB A Fig.
4-3 L240 1DC TV Cable Wiring Diagram ANODE Fig. 5 FL YBACK TRANSFORMER T571 A C601 A C CORD CN801 CLN801 SP801 CLN802 SP802 CN802 CN691 MAIN CBA DG691 DEGA USSING COIL TU11 TUNER WH301A WH501A CN571 J.
5-1 L2401E A ELECTRICAL AD JUSTMENT INSTRUCTIONS Gen eral Note : "CBA" is abbreviation for "Circuit Board Assem - bly ." NO TE: Electr ical adju stment s are requ ired af ter repla cing circuit c ompon ents a nd certa in mecha nical parts.
5-2 L2401E A 2. Initia l S ett ing General 1. En ter the Se rvic e mode . (See pag e 5-1) 2. Pr es s "VO L p " b utton on th e serv ice r emot e con trol unit.
5-3 L2401E A 4. H f 0 Adjustment Purpo se: T o get corr ect hor izont al freque ncy . Use se r vice r emot e cont rol uni t. 1 . Pres s "2" but ton on the servi ce remote con trol uni t. and sele ct H- ADJ mode. (By pr essing "2" button the displ ay will ch ange from TV AGC to H-ADJ.
5-4 L2401E A 8. H. Positi on Adjustment Purpo se: T o obtain corr ect hor izontal pos itio n of screen imag e. Symptom of Misadjustment: If H. P o sition i s incor- rect, ho rizontal pos ition of image on the scr een may not be proper ly di splay ed. Note: Use ser vi ce remo te cont rol unit 1.
5-5 L2401E A 12. Cut-off Adjustme nt Purpo se: T o adjust th e beam cur rent of R , G, B, and screen voltage. Symptom of Misadjustment: White co lor ma y be reddis h, greenish o r b luish. Note: Screen C ontrol FBT -- - Main CBA F .B .T= Fly B ack T ransf o rmer Use ser v ice rem ote con trol unit 1.
5-6 L2401E A 14. Sub-Brightness Adjustment Purpo se: T o get prope r br ightne ss. Symptom of Misadjustment: If Sub-Bri ghtnes s is incorre ct, prop er br ight ness ca nnot b e obtai ned by adju sting the Br ightn ess Contr ol. Note: IQW Setup le vel --- 7.
5-7 L2401E A 17. Convergence Adjustment Purpo se: T o obtain pro per convergence of red, gre en and blue beam s. Symptom of Misadjustment: If Con vergence Adju st- ment is inc orrect , the edge of whi te letters may ha ve color edg es.
6-1 BLOCK DIA GRAMS System Control Block Diagram L2401BLS 58 73 75 63 62 80 56 SCL AFT -IN AGC AFT -IN AGC INPUT0 INPUT1 PRO TECT -2 PRO TECT -1 PRO TECT -3 P-ON-H SDA REMOTE SENSOR KEY SWITCH 74 28 18 40 DG-ON-H +5V -CTRL +5V -CTRL2 +8V -CTRL DG-ON-H +5V -CTRL +5V -CTRL2 +8V -CTRL TO POWER SUPPL Y BLOCK TO CRT/H.
6-2 L2401BLIF IF/Video Block Diagram 58 16 56 32 30 SCL CF31 CF32 VCO F/B Q31 AGC SDA CPN. CPS. CPS. CPN. TUNER LINE S-SW TO CRT/H.V . BLOCK WH301A TO CRT/H.
6-3 A udio Bloc k Diagram L2401BLA MAIN CBA A UDIO SIGNAL A-MUTE VOLUME TO SYSTEM CONTROL BLOCK INPUT 0 INPUT 1 SCL SDA IC771 (INPUT SELECT) SW CTL 11 15 12 4 2 1 9 10 VCA STEREO FIL TER 75uS DE-EMPH .
6-4 CR T/H.V . Block Dia gram L2401BLCRT MAIN CBA CRT CBA 7 4 8 6 11 10 9 RAMP-OUT V-RAMP-F/B H-DRIVE GREEN AMP BLUE AMP Q572 Q571 T572 1 3 4 5 FBP-IN ACL V- DRIVE H- DRIVE DY551 D.Y. IC551 (V-DEFLECTION CONTROL) ANODE FOCUS SCREEN WH301B R G B HEATER ANODE GND V501 CRT FOCUS SCREEN GND JK1501 CN1501 WH501B WH501A VIDEO SIGNAL CN571 H.
6-5 P ower Suppl y Block Diagram L2401BLP 4A/125V F601 4A/125V LINE FIL TER L601 AC6 01 AC CORD DEGA USSING COIL DG691 CN691 PS691 BRIDGE RECTIFIER D605 - D608 HO T COLD T601 6 4 2 1 11 12 8 7 4 3 IC6.
7-1 L13SC SCHEMATIC DIAGRAMS / CB A'S AND TEST POINTS Standard Notes Many electr ica l and mech anica l par ts in this cha ssis hav e speci al character is tics.
7-2 L13SC LIST OF CAUTION, NOTES, AND SYMBOLS U SED IN THE SCHEMATIC DIAGRAMS ON THE FOLLOWING PAGES: 1. CA UTION: FOR CONTINUED PRO TECTION A GAINST RISK OF FIRE, REPLACE ONL Y WITH S AME TYPE_A ,_V FU SE. A TTENTION: UTILISER UN FUSIBLE D E RECHANGE DE M ÊME TYPE DE_A ,_V .
A1 A2 A3 A4 B1 B2 B3 B4 C1 C2 C3 C4 D1 D2 D3 D4 E1 E2 E3 E4 F1 F2 F3 F4 VIDEO SIGNAL Main 1/4 Schematic Diagram 7-3 7-4 L2401SCM1 M A IN 1 /4 Ref No. P osit i on IC 11 1 C-2 IC 15 1 A- 3 Q11 1 D - 1 Q.
G1 G2 G3 G4 H1 H2 H3 H4 I1 I2 I3 I4 J1 J2 J3 J4 K1 K2 K3 K4 L1 L2 L3 L4 VIDEO SIGNAL A UDIO SIGNAL 7-5 7-6 L2401SCM2 Main 2/4 Schematic Diagram M A IN 2 /4 Ref No.
M1 M2 M3 M4 N1 N2 N3 N4 O1 O2 O3 O4 P1 P2 P3 P4 Q1 Q2 Q3 Q4 R1 R2 R3 R4 IF SIGNAL VIDEO SIGNAL A UDIO SIGNAL Main 3/4 Schematic Diagram L2401SCM3 7-7 7-8 NOTE : The voltage for parts in hot circuit is measured using hot GND as a common terminal. CA UTION: FOR CONTINUED PR O TECTION A GAINST RISK OF FIRE, REPLACE ONL Y WITH SAME TYPE 4A, 125V FUSE.
S1 S2 S3 T1 T2 T3 U1 U2 U3 V1 V2 V3 W1 W2 W3 X1 X2 X3 VIDEO SIGNAL 7-9 7-10 L2401SCM4 Main 4/4 & CRT Schematic Diagram M A IN 4 /4 R e f No . P os ition R e f No .
FOCUS-VR (UPPER SIDE) SCREEN-VR (LO WER SIDE) VR661 +B ADJ +B TP601 TP300 GND Main CB A T op View BECA USE A HO T CHASSIS GROUND IS PRESENT IN THE PO WER SUPPL Y CIRCUIT , AN ISOLA TION TRANSFORMER MUST BE USED .
Q571 Base WF8 PIN 4 OF CN571 WF12 WF9 PIN 1 OF CN571 PIN 3 OF WH501A WF10 PIN 7 OF IC551 WF11 Q572 Collector WF7 WF1 PIN 26 OF IC111 WF2 PIN 14 OF IC111 PIN 8 OF TU11 WF16 WF6 PIN 3 OF IC801 Main CB A Bottom View BECA USE A HO T CHASSIS GROUND IS PRESENT IN THE PO WER SUPPL Y CIRCUIT , AN ISOLA TION TRANSFORMER MUST BE USED .
WF15 Q1511 Collector Q1511 Base WF3 WF14 Q1521 Collector Q1521 Base WF4 WF13 Q1531 Collector Q1531 Base WF5 7-15 BL2700F01012-2 7-16 CR T CB A T op View CR T CBA Bottom Vie w CRT CBA Ref No .
W A VEFORMS L2701WF 8-1 1DIV: 0.5V 20 µ s IC 111 Pin 26 WF1 GND 1DIV: 0.5V 20 µ s IC 111 Pin 14 WF2 1DIV: 2V 20 µ s Q1511 Base WF3 GND 1DIV: 2V 20 µ s Q 1521 Base WF4 GND Input: NTSC Color Bar Signal (with 1kHz Audio Signal) INITIAL POSITION: Unplug unit from AC outlet for at least 5 minutes.
L2701WF 8-2 Input: NTSC Color Bar Signal (with 1kHz Audio Signal) INITIAL POSITION: Unplug unit from AC outlet for at least 5 minutes. reconnect to AC outlet and then turn power on. (Brightness---Center Color---Center Tint --- Center Contrast---Approx 70%) WF1 ~ WF16 = Waveforms to be observed at Waveform check points.
WIRING DIA GRAM L2401WI 9-1 CRT CBA FOCUS SCREEN GND D.Y. DY551 HD VD MAIN CBA WH301A CN1501 1 2 CN691 CLN501 CLN301 AC601 1 2 3 4 5 1 2 3 4 5 CN571 5 4 3 2 1 WH301B GND RED GREEN BLUE V501 CRT ANODE .
10-1 L2401P IN IC PIN FUNCT IONS IC111 (TV Micro C ontroller) Pin No. Signal Name Function 1 CNVSS GND 2 N.U . Not Used 3 N.U . Not Used 4 N.U . Not Used 5G N D G N D 6V C C A L L + 5 V 7 N.
10-2 L2401P IN 71 MONO-OUT MONO-OUT 72 I2C OPEN Whi te Balan ce Adjus tment Judgement 73 AFT -IN AFT V ol tage Inp ut 74 DG-ON-H Dega ussing C oil Co ntrol 75 A GC A GC V olt age Inpu t 76 PRO TE CT 3 P ower Sup ply Pr otection 77 N.U . Not Used 78 N.
EXPLODED VIEWS Cabinet A-3 A-1 B-5 B-5 B-2 B-2 L-8 L-8 L-8 L-9 L-10 L-8 L-8 L-8 L-8 B-5 B-5 B-2 B-2 B-11 B-11 B-1 SP801 SP802 L-13 B-13 B-13 L-13 A-4 A-2 L1 L1 B2 Scotch T ape #880 Scotch T ape #880 V.
11-3 L2401 PEX Packing S-5 S-1 P acking T ape T ape X-5 X-2 X-1 FRONT X-3 X-4 S-2 S-3 S-6 S-4 S-7.
20040405 12- 1 L2401CA MECHANICAL P A R TS LIST PRODUCT SAFE TY NO TE: Products marked with a # hav e speci al c haracteri stics impo r tant to s afety . Bef ore replacing any of thes e componen ts, read car efull y the product safety notice in thi s ser vi ce manual.
20040405 13- 1 L2401EL ELECTRICAL P ARTS LIST PRODUCT SAFE TY NO TE: Product s mar ked with a # ha ve special cha racter isti cs im por t ant to sa fety . Before replacing any of these c ompone nts, read care- fully the pr oduct safety notice i n this ser vice manual.
20040405 13- 2 L2401EL ELECTROL YTIC CAP . 1000 µ F/10V M CE1AMASDL102 C351 CERAMIC CAP .(AX) B K 100pF/50V CCA1JKT0B101 C352 CERAMIC CAP .(AX) B K 100pF/50V CCA1JKT0B101 C353 ELECTROL YTIC CAP . 1 µ F/50V M or CE1J MAST L1R0 ELECTROL YTIC CAP . 1 µ F/50V M or CE1J MASDL 1R0 ELECTROL YTIC CAP .
20040405 13- 3 L2401EL C656 # ELECTROL YTIC CAP . 100 µ F/ 160V M o r C E2C MZPTL 101 # ELECTROL YTIC CAP . 100 µ F/ 160V M or CE2C MZNDL 101 # ELECTROL YTIC CAP . 100 µ F/ 160V M CE 2CMZ PDL1 01 C657 # ELECTROL YTIC CAP . 470 µ F/ 35V M( VR) or CE1G MZNT L471 # ELECTROL YTIC CAP .
20040405 13- 4 L2401EL # RECT IFIE R DIODE E RB12 -06 QDQZ0ER B1 206 D606 # DIODE 1N539 9-B/ P or NDLZ001 N53 99 # RECT IFIE R DIODE E RB12 -06 QDQZ0ER B1 206 D607 # DIODE 1N539 9-B/ P or NDLZ001 N53 .
20040405 13- 5 L2401EL TRANS ISTOR KTC319 8(GR) or NQS40KTC 3198 TRAN SISTOR 2SC3 331(T) -AAN P or 2SC3 331T Z TRANS ISTOR 2SC3 331(U )-AAN P or 2SC3 331UZ TRAN SISTOR 2SC1 815-G R(TPE 2) QQS 102SC1 8.
20040405 13- 6 L2401EL R161 CHIP RE S. (1608) 1/10W J 470 Ω RRXAJB5Z0471 R162 CHIP RE S. (1608) 1/10W J 22k Ω RRXAJB5Z0223 R163 CHIP RE S. (1608) 1/10W J 470 Ω RRXAJB5Z0471 R164 CHIP RE S. (1608) 1/10W J 10k Ω RRXAJB5Z0103 R165 CHIP RE S. (1608) 1/10W J 4.
20040405 13- 7 L2401EL R671 CARB ON RES. 1/4W J 3.3k Ω RCX4JA T Z0332 R672 CARB ON RES. 1/4W J 3.3k Ω RCX4JA T Z0332 R673 CARB ON RES. 1/4W J 100k Ω RCX4J A TZ010 4 R674 CHIP RE S. (1608) 1/10W J 22k Ω RRXAJB5Z0223 R675 CARB ON RES. 1/ 4W J 15k Ω RCX4JA T Z015 3 R676 CHIP RE S.
20040405 13- 8 L2401EL CRT CB A J120 C HIP RES. 1 /10 W J 0 Ω RRXAJB5Z0000 J135 C HIP RES. 1 /10 W J 0 Ω RRXAJB5Z0000 J180 C HIP RES. 1 /10 W J 0 Ω RRXAJB5Z0000 J196 C HIP RES. 1 /10 W J 0 Ω RRXAJB5Z0000 J242 C HIP RES. 1 /10 W J 0 Ω RRXAJB5Z0000 JC703 CHIP RES.
6420FE/ EWF200 4 L2401UB/ L2404UE 2004-04-1 2.
Un point important après l'achat de l'appareil (ou même avant l'achat) est de lire le manuel d'utilisation. Nous devons le faire pour quelques raisons simples:
Si vous n'avez pas encore acheté Emerson 6420FE c'est un bon moment pour vous familiariser avec les données de base sur le produit. Consulter d'abord les pages initiales du manuel d'utilisation, que vous trouverez ci-dessus. Vous devriez y trouver les données techniques les plus importants du Emerson 6420FE - de cette manière, vous pouvez vérifier si l'équipement répond à vos besoins. Explorant les pages suivantes du manuel d'utilisation Emerson 6420FE, vous apprendrez toutes les caractéristiques du produit et des informations sur son fonctionnement. Les informations sur le Emerson 6420FE va certainement vous aider à prendre une décision concernant l'achat.
Dans une situation où vous avez déjà le Emerson 6420FE, mais vous avez pas encore lu le manuel d'utilisation, vous devez le faire pour les raisons décrites ci-dessus,. Vous saurez alors si vous avez correctement utilisé les fonctions disponibles, et si vous avez commis des erreurs qui peuvent réduire la durée de vie du Emerson 6420FE.
Cependant, l'un des rôles les plus importants pour l'utilisateur joués par les manuels d'utilisateur est d'aider à résoudre les problèmes concernant le Emerson 6420FE. Presque toujours, vous y trouverez Troubleshooting, soit les pannes et les défaillances les plus fréquentes de l'apparei Emerson 6420FE ainsi que les instructions sur la façon de les résoudre. Même si vous ne parvenez pas à résoudre le problème, le manuel d‘utilisation va vous montrer le chemin d'une nouvelle procédure – le contact avec le centre de service à la clientèle ou le service le plus proche.
