Service manuals, schematics, eproms for electrical technicians

SAMSUNG CB20H1T5X CB21H1T5X CHASSIS S15A

TV - SERVICE MANUAL
Type: (RAR)
Size
2.6 MB
Page
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Category
TV
SERVICE MANUAL
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    SAMSUNG CHASSIS S-15A CB20H1T5X CB21H1T5X S15A CB 20 21 15
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Relevant TV forum topics:
Samsung : HR 8884 keresek
sziasztok, Ha lenne valakinek elfekvő , bontott vagy új amitől megválna normális áron az kérem jelezze magánban 13720076A A07)(AA26-00145A) (HR 8884)a trafó Attila
SAMSUNG LE32R32BX/HEX LCD TV nincs kép
Sziasztok! Van nálam egy a címben nevezett készülék, amelynél hang van kép és fény nincs. A biztik és a a feszültségek rendben, hibás alkatrész nem látható és a háttérvilágítás mégsem indul. Elakadtam ezért kérem a sgítségeteket. Üdv.Ckó
How to diagnose Samsung plasma failure using test patterns
MODEL: Most Samsung plasmas ISSUE: Cannot identify whether failure exists in main board, control board, sustains or PSU. DIAGNOSIS: Locate test header on control - should be 4x2 or 6x2. Jumper appropriate pins (refer to service manual or PCB) If you get test patterns: - sustains, PSU, control okay - main bad (control POSSIBLY bad - if input receiver bad) If not: - sustains, PSU, control or main are bad Then identify failure in PSU - test output voltages - if bad, fault lies in PSU, shorted sustain or main not turning the PSU on Then identify sustain board failures: - unplug X-main, check if powers up and Y-main functions (dim picture) - unplug Y-main, check if powers up (no picture) Then identify control board failures: - test SMD fuses - scope LVDS waveforms going to control (if possible) Might be main board failure. To confirm, test main board: - blindly select audio source using INPUT button
SAMSUNG CW29Z408PQ TÁPHIBA
A fenti készülék a táp IC STRX 6750 zárlatával került hozzám.A csere után kb. 2-3 óra múlva az IC ismét tönkre ment.A következő cserénél a szekunder oldali feszültségeket ellenőriztem,és a körben lévő két elkót kicseréltem,de az IC két óra múlva ismét bezárlatosodott.Kedves kollégák aki már találkozott ilyen jelenséggel és sikerült megoldania kérem segítsen.
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