Author Topic: help: component values for stereo amplifier (Read 522 times)

cybercarlos02 · « **on:** September 24, 2010, 01:48:20 AM »

patulong naman sa binubuo kong amplifier kit
magkakaiba kasi ung ibang component values na nasa schematic, sa pcb lay-out, tsaka yung included component sa kit
wala kaya maging effect un??

e2 pala sila
schematic,pcb,included
capacitor- 202, .005, (203 or 502)
203, .02, (203 or 502)
resistor- 5WR22J, (included 5WR39J)

PATULONG NA REN SA BASIC TROUBLESHOOTING! DI KO MAPAGANA EE!
THANKS IN ADVANCE!

Philippine Electronics Forum · « **on:** September 24, 2010, 01:48:20 AM »

cybercarlos02 · « **Reply #1 on:** September 24, 2010, 01:54:45 AM »

tsaka yung transistor pa pla 2SC945 sa schematic pero D438 ung asa kit

help,,pls!!

Philippine Electronics Forum · « **Reply #1 on:** September 24, 2010, 01:54:45 AM »

Engr. Dacuycoy · « **Reply #2 on:** September 24, 2010, 02:04:09 AM »

202 = 0.002uF
203 = 0.02uF
502 = 0.005uF
5WR22J = 5WATTS 0.22 OHMS +/-5% = J

Philippine Electronics Forum · « **Reply #2 on:** September 24, 2010, 02:04:09 AM »

Engr. Dacuycoy · « **Reply #3 on:** September 24, 2010, 02:17:30 AM »

the transistor 2sc945 is equivalent of d438 (2SD438)

do check the datasheet for pin configuration.

Philippine Electronics Forum · « **Reply #3 on:** September 24, 2010, 02:17:30 AM »

cybercarlos02 · « **Reply #4 on:** September 24, 2010, 02:26:14 AM »

salamat sir!
di bale swak na ren yung 0.22 ohms at 0.39 ohms
maliit lang naman difference.

pahirapan na lng sa paghanap ng problema,,sana mapagana..
thanks ulit!

Philippine Electronics Forum · « **Reply #4 on:** September 24, 2010, 02:26:14 AM »

Engr. Dacuycoy · « **Reply #5 on:** September 24, 2010, 02:39:02 AM »

you are welcome. much better if you can post the schematic so that other may give you some hints.

yokogawa · « **Reply #6 on:** October 24, 2010, 12:47:35 AM »

tama..post mo nlng yung schem diag para ma analyze ng mga engrs dito...

akosiikem · « **Reply #7 on:** October 24, 2010, 12:56:33 AM »

good luck sa built. Post mo lang dito pag may problema ka.

Philippine Electronics Forum · « **Reply #7 on:** October 24, 2010, 12:56:33 AM »

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