Changes between Version 1 and Version 2 of Hardware/bDomains/bOutdoor/HTCEvo4G

Timestamp:

Jun 25, 2015, 8:36:56 PM (10 years ago)

Author:

jkol

Comment:

—

Hardware/bDomains/bOutdoor/HTCEvo4G

@@ -1 @@
-=== HTC Evo 4G (model: PC36100) ===
+= HTC Evo 4G (model: PC36100) =
 
 
-==== Chassis Manager (CM) Compatibility Modification ====
+== Chassis Manager (CM) Connector ==
 
-TO DO
+The CM connector is a standard 3x2 0.100" header. It is located on the back of the phone above the rear camera lens. Pin 1 is in the upper left corner. Refer to Table 1 for connector pinout.
+
+|| Pin || Function ||
+|| 1 || Power - ground ||
+|| 2 || Power - signal ||
+|| 3 || Volume Up - signal ||
+|| 4 || Volume Up - signal ||
+|| 5 || Volume Down - ground ||
+|| 6 || Volume Down - signal ||
+Table 1: CM Connector Pinout
+
+[[BR]]
+[[Image(phone - complete diagram.jpg,title="Figure 1", 200)]]
+[[BR]]Figure 1: CM Connector
+
+== Chassis Manager (CM) Compatibility Modification ==
+NOTE: All steps assume a device orientation where the "top" is the edge of the phone with the headphone jack, and the "bottom" is the edge with the USB and HDMI ports.
+
+[[BR]]'''Phone Disassembly:'''
+ 1. Pry off back cover starting at the top.
+ 2. Remove battery.
+ 3. Unlock and remove SD Card.
+ 4. Remove 6x T-5 Torx screws.
+ 5. Separate the front and back of the phone by prying them apart along the edge (the black border around the red is part of the back half).
+
+[[BR]]'''Adding CM Connector:'''
+  1. Remove 1x Phillips screw in the top left of the PCB (by headphone jack).
+  2. Gently lift the PCB from the right side using the cables on the left as a "hinge" until the PCB is at 90 degrees to the screen.
+  3. Locate the power button on the under side of the PCB. It is at the top nearest the notch in the PCB (see Figure 2).
+  4. Solder 2 wires to the power button pads nearest the notch in the PCB. Looking at the power button, the top-right pad is ground, the bottom-right pad is the signal.
+  5. Place the PCB back down against the screen and reattach the screw removed in step 1.
+  6. Locate the Volume Up button on the right edge of the PCB (see Figure 2). It is just above the orange ribbon cable.
+  7. Solder 2 wires to the top 2 pads. The top-left pad is ground, the top-right pad is the signal.
+  8. Locate the Volume Down button on the right edge of the PCB (see Figure 2). It is just below the orange ribbon cable.
+  9. Solder 2 wires to the top 2 pads. The top-left pad is ground, the top-right pad is the signal.
+  10. Route all wires to the area just above the rear camera (use hot glue or tape as needed).
+  11. Solder the wires to a 3x2 0.100" header as described in the Table 1 CM Connector Pinout.
+  12. Hot glue the CM Connector to the PCB.
+  13. Cut/drill a hole in the red half of the phone as in Figure 3.
+  14. Looking at the underside of the read half:
+    a. Discard the black rubber gasket around the speaker on the red half of the phone (see Figure 4).
+    b. Cut off the 0.5cm tab at the bottom of the top-right screw hole.
+  15. Cut/drill a hole in the black back cover of the phone as in Figure 3.
+  16. Reassemble the phone by following the reverse of the disassembly steps above.
+
+
+|| [[Image(phone - pcb diagram.jpg,title="Figure 2", 200)]] || [[Image(phone - all parts diagram.jpg,title="Figure 3", 400)]] || [[Image(phone - gasket.JPG,title="Figure 4", 200)]] ||
+|| Figure 2 || Figure 3 || Figure 4 ||
+[[BR]]
+
+'''Testing CM Connector:'''
+ 1. Short pins 1-2 momentarily, the phone should start booting up.
+ 2. Once the phone boots up, unlock it to the home screen.
+ 3. Short ping 3-4 momentarily, the screen should indicate volume being increased.
+ 4. Short pins 5-6 momentarily, the screen should indicate volume being decreased.
+ 5. As a final step, test the power and volume up/down buttons themselves.