Lcd Samsung La26 R71 - Guasti Ricorrenti

[Delta S4]

Salve.

12 VOLT POWER SUPPLY OUTPUT IS MISSING.

FM 851 [KRG030], ICM 853 [KIA 278R12P1], RM 858 [10K OHMS], CM 858 [470 MFD/25V].

5 VOLT POWER SUPPLY OUTPUT IS MISSING.

ICM 852 [MC 33167T], DM 854 [EN 220A], CM 861 [2200 MFD/10V], DZM 853 [5V6-Z ZENER DIODE SHORT], DZM 852 [WP], QM 851 [ZG].

24 VOLT POWER SUPPLY OUTPUT IS MISSING.

DM 851 [EN 220A], CM 851 [1500 MFD/35V], DZM 853 [5V6-Z ZENER DIODE SHORT], DZM 852 [WP], CM 852 [1500 MFD/35V].

ALL OUTPUT POWER SUPPLY VOLTAGES ARE LESS THAN NORMAL, AND S.B POWER SUPPLY OTPUT IS OK.

PS 803S [WK 707], ZDTM 851 [KIA431A], ZDM 803 [5V1-Z ZENER DIODE], QM 802 [ZHOG], QM 803 [ZHOG], QM 803 [ZHOG], DM 803 [0E2 OHMS/2W], ICM 801S [F9222L].

ALL POWER SUPPLY VOLTAGES ARE EXCESS THAN NOMRAL, AND S.B POWER SUPPLY OUTPUT IS OK.

DZ 852 [WS], DZS 851 [WB], DS 852 [b31D], RS 855 [100 OHMS], QS 852 [ZG, RS 854 [100 OHMS], PS 802S [WK 707], RS 810 [4.7 OHMS], PS 803S [WK 707], RM 857 [750 OHMS], ZDTM 851 [KIA 431A], RM 855 [2.4 K OHMS], RM 814 [3.3K OHMS], RM 813 [100K OHMS], DZM 803 [5V1-Z ZENER DIODE].

12 VOLT AND 13 VOLT POWER SUPPLY OUTPUTS ARE MISSING

DM853 [FCH 10A10], CM 856 [1500 MFD/25V]..

NO OUTPUT FROM S.B SUPPLY

Check 300V across CP803 [150MFD/450V], FS 803 (2A), IC 801X (VIPER 22A), BZS 803 (MD1), CS 802 (22MFD/50V), DS 802 (UF4007S). DS 803 (UF 4007S), CS 806 (68MFD/63V) PS 804S(WK707), TS 801S, DS 851 (SB500), CS 852 (470MFD/10V), D853 (6V2 – ZENER DIODE). Check all these components before switch On the set. Make sure that all are good, If there is any component stated above suspected, replace them.

S.B SUPPLY VOLTAGE LESS.

ZDTS 851 (KIA431A), PS804S (WK707), RS 866 (6K8), RS 861 (5K6), RS 862 (33K), ICS801X (VIPER22A).

S.B SUPPLY MORE THAN NORMAL.

PS 804S(WK707), ZDTS 851 (KIA431A), RS 860 (6K8), RS 813 (4.7 OHMS), ICS 801X (VIPER22A).

S.B SUPPLY IS OK, BUT OTHER SUPPLIES ARE LOW OR MISSING.

You have to check well all the below stated components on the power board. If can, Isolate it from the power board, and check it individually, because, on-board check with multimeter won’t get perfect results.

R 852 (3K3), RS 851 (IK), QS 851 (ZG), RS 803 ( I OHM), DS 803 (RF4007), CS 806 (68MFD/63V), PS 801S (WK707), QS801 (C1008), RS 805 (150 OHMS/2W), QS803 (C1008), RS 908 (2.2 K.OHMS), CS 808 (47MFD/50V), ZDS 806 (WP), CM 810 (47MFD/50V), DM 805 (5K.OHMS), CM 813 (10MFD/50V), ICM801S (F9222L), RM 801 (0.22 OHM), PS 803S (WK707), ZDTM851 (KIA431A).

Fuse FS801S (6.3A0 blows off frequently

VX801X [iNR10D-751], BD 801 [RS605M], DP 801 [uF540], QP801 [FCPH20L60], CP 803 [150MFD-450V], CP 801 [1MFD-630V]

Check these components for short circuit.

FUSE FS803 BLOWS OFF FREQUENTLY

IC 801X [VIPER22A], DS851 [sB 5100], CS 852 [470MFD-10V], ZENER DIODE ZD 853 [6V2-Z].

Check the Zener diode ZD 852 for short. A common fault.

RM 801 (OE 22), OVERHEATS AND BURNS.

CM 801 [100KPF-630V ], ICM 801 [F9222L]

Short of F9222l short is a common fault.

300VDC ACROSS CP 803 IS MISSING OR LOWER THAN NORMAL

FS801[6.3A], VX801X [iNR10D-751], NT 811S [NTC5D-15], BD 801S [RS 605M]. check all these components out from the circuit board.

PICTURE OR RASTER SHAKING HORIZONTALLY [ This is a common fault to most of the LCD TVs]

CP803 [150MFD-400V] Replace this capacitor. This is the main smoothing capacitor to rectified main DC voltage.

[Riccardo Ottaviucci]

,aspettati comunque un colpo di pistola alle gambe......

[Delta S4]

Salve.

,aspettati comunque un colpo di pistola alle gambe......

?

[Riccardo Ottaviucci]

scherzo naturalmente,ma in passato abbiamo avuto qualche scontro verbale con esponenti di altri forum per divulgazione ,secondo loro illegale,di notizie riservate.

Notizie che si trovano ovunque in rete,basta cercarle,la mia era solo una battuta

[Delta S4]

Salve.

scherzo naturalmente

la mia era solo una battuta

meno male !!!! Per un'attimo ho temuto il peggio......

in passato abbiamo avuto qualche scontro verbale con esponenti di altri forum per divulgazione ,secondo loro illegale,di notizie riservate.

Scontri verbali?Per note riservate?Riservate....quanto? Come il segreto di Pulcinella...o di più?

[Riccardo Ottaviucci]

infatti,avevo tirato a suo tempo anch'io in ballo la maschera partenopea e comunque non sarei stato certamente io a spararti,aborro le armi...

Modificato: 27 dicembre 2013 da Riccardo Ottaviucci