MSI Trident 3_MS-B9061 Rev 2.1 EC Request

[Spider1211]

It`s identical to the OP`s backup.

My backup being 'leaked' already? 😆😆

[noname2024]

My backup being 'leaked' already? 😆😆

Read here https://www.chinafix.com/thread-1268694-1-1.html

[noname2024]

SMDFlea do you have any solution to the problem?

[Spider1211]

Read here https://www.chinafix.com/thread-1268694-1-1.html

I was joking about the 'leak' comment by the way 😁. Thank you for the link though.

[SMDFlea]

noname2024 do you know the coil resistance to ground for each coil of a known good MS-B9061?

The bios and EC are ok, and as this is a thread requesting the EC i suggest you make a new thread with the Schematic & Boardview request, hopefully someone will post them.

[noname2024]

Check step no power


二、維修指導 Maintenance guidance
當按下電源開關後,檢查POWER_ON信號是否動作 After pressing the power switch, check whether the POWER_ON signal is active.
1.Power on已動作(低電位),證明主板電路已經通電,可能是主板電源供電部分電路有短 路性故障,而引起電源帶不起負載自動保護而不通電,其次小電源19V，CPU電壓， SIO_3VA電壓短路也會造成不通電。可參考短路板的維修方法。 The power on has been activated (low potential), which proves that the motherboard circuit has been energized. It may be that the motherboard power supply circuit has a short-circuit fault, which causes the power supply can not carried the load and automatically protect started. Secondly, the small power supply 19V, CPU voltage, and the voltage of 3VA has a short circuit will also cause no power. Refer to the repair method of the short circuit board.
2.power on未動作（高電位）,檢查電池電壓是否為3V及JBAT插針電壓是否正常,如不 正常則看一下插針跳帽是否插反(正常是短接1-2PIN)，32.768k 晶振是否起振。 Power on doesn't working (high potential), check whether the battery voltage is 3V and the JBAT pin voltage is normal, if it is not normal, check whether the pin jumper is plugged in reverse (normally short-circuit 12PIN), 32.768k Whether the crystal oscillator has started to oscillate.二、維修指導 Maintenance guidance
3.不通電可參照下頁通電時序進行維修。 If there is no power, please refer to the power sequence on the next page for maintenance.
通電時序注解： Notes on power-on sequence:
(1)ATX電源給出19V ATX power supplies 19V. (2)19V經Q68轉出5VDUAL，經U44轉出3VSB，經U50轉出3VA 19V transfers out 5VDUAL through Q68, transfers out 3VSB through U44, transfers out 3VA through U50. (3)3VSB經線路供給FCH﹑I/O作起動電壓，供給轉換電路用來替換電池，供給JFP1插針 作開關控制電壓。 3VSB supplies FCH and I/O as the starting voltage through the line, supplies the conversion circuit to replace the battery, and supplies jfp1 pin as the switching control voltage. (4)觸發開關產生PSIN# 信號送給I/O The trigger switch generates the PSIN# signal and sends it to I/O. (5)I/O收到PSIN#信號後送出PWRBTN#信號給FCH I/O sends PWRBTN# signal to FCH after getting PSIN# signal. (6)FCH得到PWRBTN#信號後送出SLP_S3信號給I/O FCH sends out SLP_S3 signal to I/O after getting RWRBTN#. (7)I/O得到SLP_S3後送出PS_ON#信號給電源 I/O sends out PS_ON# signal to the power supply after getting SLP_S3.

Maintenance guidance
After pressing the power switch, check whether the POWER_ON signal is active.
1. Power on has been activated (low voltage), which proves that the motherboard circuit has been powered on. It may be that there is a short circuit fault in the power supply circuit of the motherboard, causing the power supply to be unable to carry the load and automatically protect itself without power. Secondly, short circuit of the small power supply 19V, CPU voltage, and SIO_3VA voltage will also cause power failure. Please refer to the maintenance method of the short-circuit board. The power on has been activated (low potential), which proves that the motherboard circuit has been energized. It may be that the motherboard power supply circuit has a short-circuit fault, which causes the power supply can not carried the load and automatically protect started. Secondly, the small power supply 19V, CPU voltage, and the voltage of 3VA has a short circuit will also cause no power. Refer to the repair method of the short circuit board.
2. If the power on does not work (high potential), check whether the battery voltage is 3V and whether the JBAT pin voltage is normal. If not, check whether the pin jumper is inserted in reverse (normally, 1-2PIN is short-circuited) and whether the 32.768k crystal oscillator is oscillating. Power on doesn't working (high potential), check whether the battery voltage is 3V and the JBAT pin voltage is normal, if it is not normal, check whether the pin jumper is plugged in reverse (normally short-circuit 12PIN), 32.768k Whether the crystal oscillator has started to oscillate. Maintenance guidance
3. If there is no power, please refer to the power-on sequence on the next page for maintenance. If there is no power, please refer to the power sequence on the next page for maintenance.
Notes on power-on sequence:
(1) ATX power supplies 19V. (2) 19V transfers out 5VDUAL through Q68, transfers out 3VSB through U44, transfers out 3VA through U50. (3) 3VSB is supplied to FCH and I/O as starting voltage, to the conversion circuit for replacing the battery, and to the JFP1 pin as switch control voltage. 3VSB supplies FCH and I/O as the starting voltage through the line, supplies the conversion circuit to replace the battery, and supplies jfp1 pin as the switching control voltage. (4)The trigger switch generates the PSIN# signal and sends it to I/O. (5)I/O sends PWRBTN# signal to FCH after getting PSIN# signal. (6)FCH sends out SLP_S3 signal to I/O FCH sends out SLP_S3 signal to I/O after getting RWRBTN#. (7)I/O sends out PS_ON# signal to the power supply after getting SLP_S3.
Send feedback
Side panels
History
Saved

in English please..