risistor value r1 and r2 of z506 power supply burn

[angelitojc37]

my z506 speaker is not working because the power aupply resistor 1 ang r2 is totally burn ang i cannot read the value of it.can u please help me what ia the value og R1 AND R2

 

[americanaudiophile]

Can't help you with the values but I suggest that the burned resistors may not be the cause of the problem but the result of the problem. Did you check the other power supply components?

 

[andrzej.umyjsie]

Hi, recently my power supply also died. I was trying to rescue it with new resistors, diods and fuse but it didn't work because main problem was AC/DC converter. Its named: TOP258MN and you can find it under brass radiator. Check it first before doing anything else. I decided that it is nonsense to replace resistors, diods, fuse and new AC/DC converter and buy new, stronger power supply - 64W laptop power supply - 16V DC and 4A. Everything works well for now
PS. You asked for R1 and R2 values. R1 : 51kOhm 5%, R2: 20Ohm 5%.