4 things to check when fridge not cooling
1. Dust on coil? 2. Fan spinning? 3. Ice blocking freezer coil? 4. Compressor, Capacitor, Relay
PCI express pin
PCI-Express 16x PinOut Pin Side B Connector Side A Connector # Name Description Name Description 1 +12v +12 volt power PRSNT#1 Hot plug presence detect 2 +12v +12 volt power +12v +12 volt power…
CαΊ§n mua
23 cΓ’y treated pine https://www.bunnings.com.au/70-x-35mm-framing-mgp10-h2-blue-pine-2-4m_p8030953 10 tαΊ₯m gyprock https://www.bunnings.com.au/gyprock-csr-2400-x-1200-x-10mm-2-88sqm-plasterboard-re_p0731415 2 Gyprock C…
Power Rails from Battery Connector to Charging IC
PP_BATT_VCC : This is the main battery voltage rail that originates directly from the battery connector. It carries the raw battery voltage (typically 3.8V–4.2V, depending on charge level) into the mainboard. It’s t…
π΄ iPhone Power Distribution When Turned Off
π 1. Battery (VBAT) Supplies Standby Power The VBAT (Main Battery Line) is always connected to the logic board, even when the iPhone is off. VBAT voltage: ~3.7V-4.2V , depending on battery charge. ⚠️ If VBAT is miss…
π± iPhone Startup Process: Electrical Perspective
π 1. Power Source & Initial Activation This stage involves powering the device and initializing voltage regulators . Step 1: Battery or Charger Supplies Power The iPhone receives power from either: The battery (…
π± Complete iPhone Startup Process
πΉ Stage 1: Power-On & Hardware Initialization This stage handles the basic power flow and hardware activation. 1️⃣ Power Button Pressed Pressing the power button signals the PMU (Power Management Unit) to begin…