Service document for the Samsung Galaxy SM-A800F, a 13.8 MB PDF; the TSHOO token suggests a troubleshooting section of the Samsung service manual, here part 7. Such pages usually combine block and circuit diagrams with fault-finding flows for problems like no power, charging or display faults, along with test points to measure. Open it in any PDF reader. Confirm the model on the device label reads SM-A800F before relying on the circuit details.
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How to open a .pdf file
The standard format for schematics, block diagrams, power-sequence charts and service manuals.