I just did this exact fix on the DS1815+. Same problem, wouldn't turn on. To fix it, there is a transistor near the power connector (BC847C (SOT-23)) in spot Q4. It's really, really small! I tested it with a multimeter on diode mode
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``_____``
-
-
``| |``
-
-
``B|1 3|C``
-
-
``|__2__|``
-
-
``E``
+
``[image|3604853]``
Red lead to ***Base*** (Pin 1), black lead to ***Emitter*** (Pin 2), should show voltage, not OL[br]
Reverse should show ***OL***
Red to ***Base*** (Pin 1), black to ***Collector*** (Pin 3) should show voltage, not OL[br]
Reverse should show ***OL***
Black to ***Collector*** (Pin 3), red to ***Emitter*** (Pin 2): Should show ***OL***[br]
Reverse: Should show ***OL***
I tried replacing it with a soldering iron, but it's just not up to the job (unless your a magician with a soldering iron...I'm definitely not!). I switched to my ATTEN ST-862D hot air soldering station set on 400F and 7% air flow and the smallest nozzle. The chip came after a brief minute. Replaced the chip, reassembled the NAS, and it's been running fine since.
I just did this exact fix on the DS1815+. Same problem, wouldn't turn on. To fix it, there is a transistor near the power connector (BC847C (SOT-23)) in spot Q4. It's really, really small! I tested it with a multimeter on diode mode
-
_______
+
``_____``
-
| |
+
``| |``
-
B |1 3| C
+
``B|1 3|C``
-
|___2___|
+
``|__2__|``
-
E
+
``E``
Red lead to ***Base*** (Pin 1), black lead to ***Emitter*** (Pin 2), should show voltage, not OL[br]
Reverse should show ***OL***
Red to ***Base*** (Pin 1), black to ***Collector*** (Pin 3) should show voltage, not OL[br]
Reverse should show ***OL***
Black to ***Collector*** (Pin 3), red to ***Emitter*** (Pin 2): Should show ***OL***[br]
Reverse: Should show ***OL***
I tried replacing it with a soldering iron, but it's just not up to the job (unless your a magician with a soldering iron...I'm definitely not!). I switched to my ATTEN ST-862D hot air soldering station set on 400F and 7% air flow and the smallest nozzle. The chip came after a brief minute. Replaced the chip, reassembled the NAS, and it's been running fine since.
I just did this exact fix on the DS1815+. Same problem, wouldn't turn on. To fix it, there is a transistor near the power connector (BC847C (SOT-23)) in spot Q4. It's really, really small! I tested it with a multimeter on diode mode
-
_______
+
_______
-
| |
+
| |
B | 1 3 | C
-
|___2___|
+
|___2___|
-
E
+
E
Red lead to ***Base*** (Pin 1), black lead to ***Emitter*** (Pin 2), should show voltage, not OL[br]
Reverse should show ***OL***
Red to ***Base*** (Pin 1), black to ***Collector*** (Pin 3) should show voltage, not OL[br]
Reverse should show ***OL***
Black to ***Collector*** (Pin 3), red to ***Emitter*** (Pin 2): Should show ***OL***[br]
Reverse: Should show ***OL***
I tried replacing it with a soldering iron, but it's just not up to the job (unless your a magician with a soldering iron...I'm definitely not!). I switched to my ATTEN ST-862D hot air soldering station set on 400F and 7% air flow and the smallest nozzle. The chip came after a brief minute. Replaced the chip, reassembled the NAS, and it's been running fine since.
I just did this exact fix on the DS1815+. Same problem, wouldn't turn on. To fix it, there is a transistor near the power connector (BC847C (SOT-23)) in spot Q4. It's really, really small! I tested it with a multimeter on diode mode
_______
| |
B | 1 3 | C
|___2___|
E
Red lead to ***Base*** (Pin 1), black lead to ***Emitter*** (Pin 2), should show voltage, not OL[br]
Reverse should show ***OL***
Red to ***Base*** (Pin 1), black to ***Collector*** (Pin 3) should show voltage, not OL[br]
Reverse should show ***OL***
Black to ***Collector*** (Pin 3), red to ***Emitter*** (Pin 2): Should show ***OL***[br]
Reverse: Should show ***OL***
I tried replacing it with a soldering iron, but it's just not up to the job (unless your a magician with a soldering iron...I'm definitely not!). I switched to my ATTEN ST-862D hot air soldering station set on 400F and 7% air flow and the smallest nozzle. The chip came after a brief minute. Replaced the chip, reassembled the NAS, and it's been running fine since.
Hope this helps.