toshiba L635
BM10G -6050A2338501_MB-A02
This machines was having Hang during post , somethimes freeze during boot , and stuff like , random shutdown insyde windows . all was poiting to HM chipset , since all the outher tests was showing good values and signals .
we replaced hm55 ... not machine is making 3.3 volts oscilating all time in all points , main regulator, bios etc .. and there is no 5volts line .
O.o each time im understanding less this machines nowadays .
simple hm55 replacement , now got 3.3 volts like
3.3 , 3.08 , 3.3 , 0 , 3.3 , 1.98 .. doing all same thing , and also (the turn on led , and wirless led , blink each time there is a oscilation on the 3.3 volts line .
Cmos bat is ok , the board was protected to avoid to much heat on certain components.. really dont get it why after the HM replacement is acting like this .. bad HM55 ? bad soldering ?? (that is something i dont think much , since my machine is insyde a big special box to have a always correct temp , and all chip stay well soldered usually , why wouldn't this one ) now im stuck
cheking main regulator , i got a stable 19 volts dc in . but will post here pinout and wich are making the oscilation
1- 0 , 0.09 , 0 , 0.11 , 0 etc
2- 0.22 , 0 , 0.2 , 0.18 ,0
3 - 0 , -0 , 0
4 - the more or less stable value 3.37 , 3.32 , 3.35
5 - 2.02 , 1.5 , 2.02 , 0.49 , 1.99 pfffff i could be here writing diferente values and each second
6 - 1,58 stable
7 - 3,37 , 1.95 , 0.45 ,3.33 , 0 , 1.99 etcetc
8 - the more or less stable value 3.37 , 3.32 , 3.35
9 - 7.69 ,4.56 , 7.56 , 6.98 etc etc
10 - 3,37 , 1.95 , 0.45 ,3.33 , 0 , 1.99 etcetc
11- 3,37 , 1.95 , 0.45 ,3.33 , 0 , 1.99 etcetc
12 - 0.01. , 0.02 ,0.0 , 0.15 etc
13 - 1.24
14 - 1.98
15 - 0
16 - dc in stable 19,8 volts
17 - 4.93 stable
18 - 0.06
19 - 0.03 , 0.00 , 0.02 etc
20 - 0 , 0.58 , 0.0 , 0.01
21 - the same as pin 20
22 - 4.47 , 4.76 ,4.45 , 5 etc
23 - 0 0.01 0.03 0
24 - 0 0.3 0 0.5 0 0.4 :S
spent a good minutes to be more precise possible guys --
im even going to drink a coffe before exploding this board
BM10G -6050A2338501_MB-A02
This machines was having Hang during post , somethimes freeze during boot , and stuff like , random shutdown insyde windows . all was poiting to HM chipset , since all the outher tests was showing good values and signals .
we replaced hm55 ... not machine is making 3.3 volts oscilating all time in all points , main regulator, bios etc .. and there is no 5volts line .
O.o each time im understanding less this machines nowadays .
simple hm55 replacement , now got 3.3 volts like
3.3 , 3.08 , 3.3 , 0 , 3.3 , 1.98 .. doing all same thing , and also (the turn on led , and wirless led , blink each time there is a oscilation on the 3.3 volts line .
Cmos bat is ok , the board was protected to avoid to much heat on certain components.. really dont get it why after the HM replacement is acting like this .. bad HM55 ? bad soldering ?? (that is something i dont think much , since my machine is insyde a big special box to have a always correct temp , and all chip stay well soldered usually , why wouldn't this one ) now im stuck
cheking main regulator , i got a stable 19 volts dc in . but will post here pinout and wich are making the oscilation
1- 0 , 0.09 , 0 , 0.11 , 0 etc
2- 0.22 , 0 , 0.2 , 0.18 ,0
3 - 0 , -0 , 0
4 - the more or less stable value 3.37 , 3.32 , 3.35
5 - 2.02 , 1.5 , 2.02 , 0.49 , 1.99 pfffff i could be here writing diferente values and each second
6 - 1,58 stable
7 - 3,37 , 1.95 , 0.45 ,3.33 , 0 , 1.99 etcetc
8 - the more or less stable value 3.37 , 3.32 , 3.35
9 - 7.69 ,4.56 , 7.56 , 6.98 etc etc
10 - 3,37 , 1.95 , 0.45 ,3.33 , 0 , 1.99 etcetc
11- 3,37 , 1.95 , 0.45 ,3.33 , 0 , 1.99 etcetc
12 - 0.01. , 0.02 ,0.0 , 0.15 etc
13 - 1.24
14 - 1.98
15 - 0
16 - dc in stable 19,8 volts
17 - 4.93 stable
18 - 0.06
19 - 0.03 , 0.00 , 0.02 etc
20 - 0 , 0.58 , 0.0 , 0.01
21 - the same as pin 20
22 - 4.47 , 4.76 ,4.45 , 5 etc
23 - 0 0.01 0.03 0
24 - 0 0.3 0 0.5 0 0.4 :S
spent a good minutes to be more precise possible guys --
im even going to drink a coffe before exploding this board
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