Service manuals, schematics, eproms for electrical technicians

SONY KV-X2951D

TV - EPROM
Type: (RAR)
Size
434.0byte
Page
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Category
TV
EPROM
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  • Also known:
    SONY KVX-2951D KVX2951D KVX 2951 KV X2951D KV-X2951D
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Relevant TV forum topics:
SONY tv TDA8175 helyettesítése melyikkel? (TDA8170,8172,8177,STV9379)
Üdv mindenkinek. Egy Sony tv feladta nekem a leckét a következőképpen vertikál vezérlője elszállt (tda8175) sinis, hq-s javitó kitteket másodpercek alatt kilőtte a legdrágábbat és a legolcsóbbat is. Az eltérítő környékén lévő alkatrészek mind újak, tápfesz rendben, sorvég rendben. Tda8175 másik készülékből beletéve működik a gép szépen.Én már teljesen elvagyok keseredve hogy mit tegyek vele még a témában felsorolt alkatrészek(et) valamelyikét feláldoznám a sikerért. Kérek mindenkit hogy aki tud segítsen melyiket lehetne beleépíteni és leírást is küldjetek róla. Segítségeteket előre is köszönöm. Üdv.:Péter
Sony KDL-37W5500 - Blinks 8 times (Audio Error)
Hello to everyone, i have a problem with this Sony LCD Sony KDL-37W5500 Chassis EX2L MAINBOARD: 1-878-942-22 PANEL: T370HW02 Audio Amp: TAS5602 Sound System: CXA3785R-T6 main CPU: EMMA3 (under heat sink should be MB91F313APMC-GE1) Power Supply: G4, 3H267W, PSC10270F When i try to turn it on it clicks relay, blinks 1x Green Led, then it shuts down and blinks 8x Red Led. Looking at service manual it should be an Audio Error. When i try to enter Self Diagnostic Menu it just wont light up the screen. I do the sequence "I+" "5" "V-" "Power" and it powers up regularly-fault 1xgreen 8x red, black screen. From power supply i get all the voltages, except that 15V is 17.4V constant, but at the moment of powering it overshoots at 24V briefly. Also i don't get D3.3V voltage. I have 12V on regulator BD9540EFV, but enable pins 3 and 12 are held too low on 1.6V, and it need at least 2.2V to enable output, so i dont have 3.3V, only 0,7V. DVDD 3.3v is logic supply, so i dont get how CPU gets logic levels from ICs for error when there is no Logic Supply... When i measure the power for audio amplifier TAS5602DCAR it should be 13V i suppose, but it gets 17.4V, from the CON1300 pins 4 and 5. It is ok for that IC, it works on voltages until 30V, but I worry if that does not affect some other processes. Fault signal from audio amp TAS5602DCAR is on PIN19 and it is 3.3V that is HIGH and it suggests Normal Operation. On sound system IC CXA3785R-T6 pin44 the VFAULT signal is LOW 0.7V, that is too normal operation. But on audio amp pin18 TAS5602DCAR RESET is held in LOW and it does not go to HIGH to get out of the reset mode. That pin is controlled by main CPU signal X_SP_Mute. On sound system IC CXA3785R-T6 pin43 X_Protect output is LOW 0.4V that means ERROR. In datasheet it says X_PROTECTOUT outputs “L” when input voltage (SPxP/N) become under 3.0V. That is on pins 61-62 and 63-64, and if I understand right it needs to have 3+ V DC to output High Normal signal? Isnt that a bit too high to have on speakers? I measure 0V DC there, and 25mV AC. Also i can not find anywhere schematics for PSU board PSC10270F(3H267W), i need it because i think that this 15V should be around 15V not 17,4V. I did find zener diode that i think acts as a stabilizator and it measures ok, but i would replace it if i knew the markings that can not be read. All google stuff is from my posts so google wont help :) What do you think can be the main problem and solution for this ? I exclude replacing whole board I have and Audio Amp IC coming soon to replace, but i think that wont help. p.s. If anyone wants i can upload all pdfs that i have, ex2l SM, datasheets for audio ICs, datasheet for 3,3V regulator ect...
Sony KP -S4113 CHASSIS AP-1E Nem lehet konvergenciát álitani Serviz manula alapján sem
Sziasztok ! Fent nevezet projektoros tévével szenvedek Konvergencia beállítása nem megy Kapcsolási rajzot keresek de én nem találok aki tud rajzot hozzá segítsen Előre is köszönöm
Sony FE2 táphiba
Sziasztok, van itt egy KV29FX30. 11-et villog a LED. Sortranzisztor nem zárlatos. Elolvastam a vonatkozó csatolmányt, az R618 ellenállást nem találom, pedig nagyítóval többször átnéztem a panel mindkét oldalát. Létezik olyan verzió ahol más pozíciószámmal szerepel az adott funkciót betöltző ellenállás? A másik: tartok tőle hogy az MCZ3001 rossz. Ügyfél elmondása szerint kb 2 hete kezdődött hogy nehezen indult a TV, most márt egyáltalán nem indul, akkor sem ha melegítem az IC-t. Látom hogy a Sininél kapható kétfajta is olyan 3000+ÁFA áron, a kérdésem hogy cserélt-e valaki mostanában ilyent? Sok rosszat hallottam erről az IC-ről. Esetleg ha volna valakinek egy tuti működő, át is venném. Üdv. Tamás.
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