You need to solder wires
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| sony cs290 (mbx-196) on....off https://vlab.su/viewtopic.php?f=55&t=14390 |
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| mrfelc [ 11 июл 2013, 12:05 ] | |
| Заголовок сообщения: | sony cs290 (mbx-196) on....off |
sony cs290 mbx-196 shortly on and off flash bios change i/o chip 3.3v ok 5v ok 19v ok |
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| RsM [ 13 июл 2013, 01:23 ] | |
| Заголовок сообщения: | Re: sony cs290 (mbx-196) on....off |
See SC on inductors, other voltages. Reconnect RTC-battery. |
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| mrfelc [ 13 июл 2013, 13:46 ] | |
| Заголовок сообщения: | Re: sony cs290 (mbx-196) on....off |
reconnect rtc bat all inductor not sc to GND,...but PL12 in VCCP have 28 ohm by gnd capacitor on N-BRIDGE have 28 ohm ...is this normal? check voltage in power on time(2sec) checked voltage on inductors and GND 1.5v ok 1.8 v ok(ram) 3.3v ok 5v ok !!not have any voltage on cpu power (2 inductor enclose cpu) |
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| RsM [ 14 июл 2013, 11:48 ] | |
| Заголовок сообщения: | Re: sony cs290 (mbx-196) on....off |
Is 0.9V on pin 2 of PU3 (or on capacitors on RAM modude)? Is 1.8V on both sides on PQ37 ? Is voltage on PL12 and what is value? Is VCC 1.1 on pins 123 of PQ44, PQ45 ? is a 3.3V enable signal on pin 29 (VR_On) of PU9? is a 3.3V enable signal on pin 44 (VR_On) of PU1? What on pins 48,20,22 of PU1? Also you need to check PowerGood signal for all IC, where it used. (see schematic diagram) |
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| mrfelc [ 15 июл 2013, 00:48 ] | |
| Заголовок сообщения: | Re: sony cs290 (mbx-196) on....off |
i download schematics and find part and test voltage as soon as but i have problem by ISL6262A that under a mini pcb of input voltage are you have way to test voltage on this pwm ic? |
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| RsM [ 15 июл 2013, 10:13 ] | |
| Заголовок сообщения: | Re: sony cs290 (mbx-196) on....off |
mrfelc писал(а): but i have problem by ics6262 that under a mini pcb of input voltage are you have way to test voltage on this pwm ic? upload foto please |
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| mrfelc [ 15 июл 2013, 13:36 ] | |
| Заголовок сообщения: | Re: sony cs290 (mbx-196) on....off |
i am sory....ISL6262A (i write ics6262) PU1 |
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| RsM [ 15 июл 2013, 23:37 ] | |
| Заголовок сообщения: | Re: sony cs290 (mbx-196) on....off |
You need to solder wires
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| mrfelc [ 18 июл 2013, 14:54 ] | |
| Заголовок сообщения: | Re: sony cs290 (mbx-196) on....off |
test reslt: 1.8v on cap of ram PL12=1.05v PU9(ISL6263): pin29 of pu9 =3.3v pin31 of pu9=0v PU1(ISL6262 CPU CORE): pin44=0v pin48=3.3v pin20=19v pin22=5v |
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| laptopfix101 [ 25 окт 2013, 16:15 ] | |
| Заголовок сообщения: | Re: sony cs290 (mbx-196) on....off |
Also consider southbrige is defective and north<->south bridge might not work properly. |
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