[SOLVED]820-3435-B Th1H sesor read SMC error

macfix

Member
Hello Everybody

Working on liquid damaged A1465 Late 2014. before come to me some ones clean board and replaced LCD connector and replaced bios , (I m not sure where liquid damaged)

Computer turns on and working but too slow and fan noise ;

When i checked by ASD

[12/31/13 16:25:49] Temperature (Th1H) -- Fin Stack (test #11) - Extended Sensor Flat Line Test
- Checks that the Sensor changes value i.e. not stuck, with longer time allowance for change (5 mins).
[16:25:49] ERROR - -13005 [The SMC can not read this sensor] -- TEST FAILED
[12/31/13 16:26:10] Fan Motor: Exhaust (test #4) - Turn On Automatically
- System turns on fan motor and verifies fan motor can reach minimum/maximum values
[16:26:53] ERROR -- 9 [Motor unable to stabilize between min and max limits] -- TEST FAILED
[12/31/13 16:26:53] Quick Fan motor Test (test #5) - Quick Fan motor Test
- System verifies that the fan motor is running to target speed
[16:27:12] ERROR -- 7 [Fan motor is spinning slower than it should] -- TEST FAILED
[12/31/13 16:27:12] Fan Motor: Exhaust (test #21) - Verify Max Speed Other Fans At Full, Min Speed All at Min
- Verify fan max speed with other fans at full speed, min speed with other fans at minimum speed
[16:27:57] ERROR -- 9 [Motor unable to stabilize between min and max limits] -- TEST FAILED



What was tested:

I/O board
I/O Flex cable
Fan
Trackpad and cable ( cable also damaged)

After some flux + heat SMC fan noise gone but machine working slow and same error at ASD, checked R5210 and SMC_SENSOR_ALERT_L no short to ground .

Is it looking like SMC problem or can i check any thing?
 

dukefawks

Administrator
Th1h is on the LIO board. If that and the flat cable were already replaced it can only be a few things. J9500 pin 3 and 5 carry the data so connector can be bad. R5370/71 can be bad or there is still crap under the SMC.
Measure on diode mode on pin 3 and 5 of J9500 to see if traces are not open.
 

macfix

Member
Thank for suggestion Duke.

Problem is PP3V3_S3 voltage surge after replacement U8010 every things ok problem solved.
 
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