TC Electronic G-Force Service Manual Download | Manualshive

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Summary of Contents for G-Force

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Page 2: ...in Test Program 6 Disassembly Procedure for Main Board 7 Disassembly Procedure for Front Section 8 Exchange of Power Supply Module 9 Exchange of Battery Exchange procedure 10 Block Diagram 11 Circuit...

Page 3: ...ibes the changes from older software versions to newer versions Appendix contains Schematics Part lists PCB Layouts and service notes Schematics start with a main sheet where sub sheets are shown as b...

Page 4: ...wer again gives access to the boot menu 5 Quickly press ENTER to load the software loading takes approx 15 seconds Blank display Cannot run application software Enter the SOFTWARE BOOT menu by keeping...

Page 5: ...ption Description Load PCMCIA Load Application or Boot software directly from PCMCIA card See also service note no 720 10 04 02 in appendix Load Link Used for loading Application software from MIDI IN...

Page 6: ...o the upper of the display Analog I O A sine wave is generated on both analog outputs When connected to one of the analog inputs the dis play reads OK if the level is correct In this way a problem mig...

Page 7: ...J1 see fig 2 4 Remove screws at MT7 MT8 MT2 on the main board see fig 2 5 Remove 5 nuts at the Jack connectors on the back panel see fig 3 6 Remove screw at SPDIF in out connector see fig 3 7 Push the...

Page 8: ...s 5 Remove the front section 6 Pull off the PARAMETER and VALUE knobs by hand 7 Place the front profile horizontally with the buttons facing down Place the profile on some stand off to avoid any press...

Page 9: ...front section 6 At the main board desolder all seven power supply wires 7 Dismount the power supply by removing the screw just below the mains plug at the back panel see fig 6 8 Mount the new power s...

Page 10: ...der the terminals one by one Avoid any short circuit of the terminals 5 The voltage measured directly across the terminals of the new battery should be higher than 3 0VDC 6 Do not discard the old batt...

Page 11: ...s will always be active even in Bypass mode SPDIF ANALOG INPUTS unbalanced L DIG RECEIVER DIG TRANS FORMER OUTPUT R DIGITAL INPUT LEVELS INPUT GAIN OUTPUT GAIN LEVELS DIGITAL OUTPUT A D D A DIGITAL SI...

Page 12: ...g a PAL The interface for the front has an integrator which converts a 3 3kHz square wave to a negative DC voltage for the display contrast By changing the duty cycle of the square wave the DC voltage...

Page 13: ...mal current load is approx mA 2 TP4 goes to 4 7VDC C8 is discharged and keeps IC1 pin 13 low and subsequently IC1 pin 8 goes high IC1 DZ1 3a 5VSB 5V_STANDBY Brown wire goes to approx 3 2VDC R7 3b Q1 a...

Page 14: ...tests SRAM If reset or not OK this message appears User Preset Error Cleared All Presets Check IC8 IC4 or battery 12 MPU checks header in application software If not OK Boot menu appears Try to reloa...

Page 15: ...ksum error in boot software Reload boot software LD4 has two functions 1 Show power on 2 Defines the voltage named 5VDA 5 5VDC Jumper settings Main board version PC13002 2 J7 JTAG is unused JP3 JP4 JP...

Page 16: ..._________________________________________________________________________________________________________________________________________________________ __________________ TC Electronic A S G Force S...

Page 17: ...and volume jumps Verify Preset change is now in one of two modes muting on or muting off When in on mode output from every effect is muted during change When in off mode the effects are muted accordi...

Page 18: ...requency Response 0 0 5dB 20 Hz 20 kHz Crosstalk 60 dB 20 Hz 20 kHz Digital Input and Output S PDIF In Out Coaxial RCA Type Formats EIAJ CP 340 IEC 958 S PDIF 24 bit Sample Rate 44 1 kHz PCMCIA Interf...

Page 19: ...r MIDI CABLE EXTERNAL CONTROL CABLE ANALOG IN CABLE ANALOG OUT CABLE ANALOG OUT CABLE DIN CONNECTOR Note Pin 1 and 3 are reserved for optional RS485 interface Therefore use only 3 wires if the G Force...

Page 20: ...ges Service note no 720 1004 06 1 page Schematic for Main board ver PC13002 2 15 pages Part list for Main board ver PC13002 2 9 pages PCB lay out for Main board ver PC13002 2 2 pages Schematic for Mai...

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