Problem | Possible Cause or Test
|
Robot completely inoperative, green LED is off
(after placing OFF-ON switch to ON and pressing the RESET switch). |
- Wiring of batteries
- Low battery voltage
- Fuse Fl blown
- Keyboard
- U302,Q301, Q302
- U221,U222
- U201
- Jumper at TP201 disconnected
|
Robot does not speak; however, red data LEDs flash on and off. |
- R234 turned fully CCW
- Q204,Q205
- U201, U215, U223, or U224
- SP2
|
Robot's speech is distorted, while red data LEDs flash on and off. |
- R224 misadjusted
- D202, Q202, Q203
- U201, U215, U223
|
Red data LEDs do not flash, while Robot's speech is okay. |
- U225
- P205
- Keyboard LEDs installed backwards
|
Malfunction in memory circuits. |
- U209 (if no 5.0 vofts)
- U203 not installed.
- Jumpers J201 through J210 incorrectly installed
- U201
- U202
|
Robot says: "Sonar malfunction." Also, no sound from sonar transducer |
- A4 not connected to P305
- U214 or U215
- U201
- U304 or U314
- U307, U308, or U313
|
Steering motor does not operate. |
- P203
- A1
- P309
- U201 or U214
- Q316, Q317, Q318, or Q319
- U213, U221.
|
Steering motor reaches Hmit switch, bit then continues to run. |
- Plug on P203 pins 9 and 10 not connected or reversed.
|
Malfunction in light sensor; however, red data LEDs flash on and off. |
- LDR1 or P306
- U201 or U214
- U304 or U314.
- U215 or Q309.
- Q311, Q312, or U306.
|
Drive wheel is not tuming. |
- A2 wiring
- A2
- P308 or P311
- U201, U214, or U215
- A3
- U304 or U305
- Q321
|
Data LEDs do not flash on and off. |
- P301
- U304
- D308
|
Unable to enter time or date. |
- Keyboard
- P204 or P206
- Q206,Q207, Q208, or Q209
- U214
- U201
- U213, U221
- U211 or U212
|
None of the keyboard keys can be activated. However, RESET key functions properly. |
- Keyboard
- U213, U221
- U201 or U202
- U214 cK U215
- U203, U204, U205, U206, U207, or U208
- Jumpers J201 through J210 incorrectly installed
|
Robot says: 'Low battery.' However, the batteries check out okay. |
- D304
- D305
- U303
- U214 or U201
|
Batteries will not take charge. |
- Battery charger
- P1 or J1
- P307
- U301
|
Drive wheel is tuming forward and backward in the "explore" mode |
- Distance between A3 and disk is not approximatety 1/8"
- Connector lo A3 removed
- P311
- U304 or U305
- U201 or U214
|
Drive wheel turns only in reverse. |
- RY301
- Q322
- U214, U201
|