Samsung HW-K950 Soundbar - Surround Speaker (PS-KS2) Disassembly and Repair

In this video we attempt to repair a left surround speaker (PS-KS2-1) from a Samsung HW-K950 (HW-N950) Soundbar. The speaker would not turn on and the 3amp fuse in the plug was blown.

WARNING: This video is for information purposes. Working on power supplies is dangerous as they can carry lethal voltages.

Parts tested:

FP801S = F3.15A, 3.15amp Fast Blow Fuse (failed)
VX8015 = TVR14751 Zinc Oxide Varistor
NT801S = SCK-054 NTC Thermistor (failed)
C801S = 0.33uf, 275v Class X Capacitor
BD801S = GBU4J Bridge Rectifier (failed)
CX801S = 82uf, 450v Electrolytic Capacitor
Q801S = 10N65A Mosfet (failed)
R815 = R270JSMT, 0.27ohm 5W Resistor
ZD811 = 1N4742A, 12v 1.0W Zener Diode (failed)
C813 = 47pf, 2kv Capacitor
IC801S = 3S111 Power IC (failed)
CY803S = WMEC HJ681k, X:400v, Y:250v Capacitor
D812 = UF4007 Diode
R811 = 75k Resistor
C811 = 2.2nf 650v Capacitor
C901 = 220uf, 50V Capacitor
C902 = 220uf, 50V Capacitor

Parts replaced:

1. F3.15A Fast Blow Fuse
2. SCK-054 Thermistor
3. GBU4J Bridge Rectifier
4. 10N65A Mosfet (used 10N65B)
5. 1N4742A Zener Diode
6. 3S111 Power IC

Видео Samsung HW-K950 Soundbar - Surround Speaker (PS-KS2) Disassembly and Repair канала A M P