Sep. 2001 ERROR MESSAGE BATTERY check fig.EM-3 Normal Error Message fig.EM-1 “LOW” is displayed when 2.7 V or lower. fig.EM-4 The memory backup battery inside the GT-6 has run down. (This message will appear when the power is turned on.) Replace the battery as soon as possible. For battery replacement, please contact a nearby Roland service center or your dealer. “No Battery !!” is displayed when a battery is not inserted. fig.EM-2 * Insert a new lithium battery. If an error message continues to appear when a new lithium battery is inserted, check the following parts and wiring.
CPU(IC21):pin 84 OP.Amp(IC25):pins 1-5 Resistor(R80, R81, R82, R121) There is a problem with the MIDI cable connection. Diode(D9, D10) Check to make sure the cable has not been pulled out or is not shorted. Capacitor(C118, C136) fig.EM-3 MIDI Check fig.EM-5 You’ve attempted to switch patches by rotating the [PATCH/VALUE] dial, but the Dial function (p. **) is set to “VALUE Only.” If you want to be able to switch patches using the [PATCH/VALUE] dial, set the Dial function to “PATCH No.& VALUE.” Problem : No MIDI cables are connected. fig.EM-4 fig.EM-6 More MIDI messages were received in a short time than could be processed correctly. Problem :
The data sent (MIDI OUT) and the data received (MIDI IN) do not match. * Check the following parts and wiring. • MIDI IN Error messages in test mode CPU(IC21):pin 12 Resister(R67-R69) DSP check Capacitor(C80) Photo Coupler(IC13) fig.EM-1 Diode(D6) • MIDI OUT Problem : The data written in the DSP (IC8) PROM and the data read do not match. CPU(IC21):pins 10 Resister(R76,R77,R138) Gate IC(IC16) * Check the following parts and wiring. DSP(IC20): pins 77-79, 81-84, 86-89, 91-92, 94-97, 99-100, 102-107 DSP Pitch interruption signal check fig.EM-7 fig.EM-2 Problem : The interruption signal generated from DSP (IC8) internal oscillation is not recognized. Problem :
The data written to the DRAM (IC24) via the DSP (IC20) and the data read do not match. * Check the following parts and wiring. * Check the following parts and wiring. CPU(IC21):pin 8 DSP(IC20):pin 75 DSP(IC20): pins 7-10, 12-14, 16, 17, 19-21, 23-25, 27, 32-35 DRAM(IC24): pins 1-44 34