Hi. I have sony trinitron 21" KV-HP212 model colour tv. 3Dsorround woofer is there. Now a days I did not get that much sound effect as earlier. Is there any problem. please help me.

SOURCE: Sony KV-32LS60U FD Trinitron 32

Your tv has Leak cap in POWER supply its either primary or secondary power. Need to replace it. Look for a Electronic Tech.

SOURCE: Sony Trinitron 29inch Color TV

The 2 blinks are an indication of over-current. This is usually because of a shorted component. The most common is the horizontal output transistor. This will be a 3-legged part attached to a heat sink close to the flyback transformer (part with red wire coming out the top). This transistor will be marked C4856 or something similar. Update this with the exact marking and I'll provide you with the full part number and approximate cost.

Dan

Jan Michael

• 52 Answers
• Posted on Oct 30, 2008

SOURCE: Sony trinitron KV-27FS100

probably, you have to call for a technician to check for it, the switch of the tv might have some dis alignment of cables

SOURCE: no sound (sony trinitron kv-2197pf 21" tv)

try to short the spider transistor along ic amplifier. it is in a mute

SOURCE: I need copy of schematic drawing Sony Trinitron

Since the set recovers under some conditions, I would first look for poor solder connections. With a set of your vintage, it is common for some of the connections to become faulty. If you can solder, resolder any connections on the board that appear grainy or have rings. Please note that there are potentially dangerous high voltages present inside the set even when unplugged.

Keep us posted on your progress.

Dan