Ren-W Troubleshooting: Difference between revisions
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*Some components have specific mounting requirements: | |||
::* The notch on the MAX232 chip faces to the right, toward the U1 voltage regulator. | |||
::* The zener diode (D1) has the black stripe on the TOP, next to the JP6 header pins. | |||
::* The 3.3 voltage regulator (U1) has the metal tab facing up, toward the JP2 header pins. | |||
::* The electrolytic capacitor (C3) has the - strip facing DOWN toward the LED, which means the + side is up toward the J2 jack. | |||
Revision as of 04:52, 3 February 2010
The Ren-W circuit board is a very simple design but good soldering technique is still extremely important.
Voltage Measurements: three test points are just below pin 16 of the MAX232 chip/socket:
- Some components have specific mounting requirements:
- The notch on the MAX232 chip faces to the right, toward the U1 voltage regulator.
- The zener diode (D1) has the black stripe on the TOP, next to the JP6 header pins.
- The 3.3 voltage regulator (U1) has the metal tab facing up, toward the JP2 header pins.
- The electrolytic capacitor (C3) has the - strip facing DOWN toward the LED, which means the + side is up toward the J2 jack.