Fender Cyber-Twin Service Manual Download Page 15 | Manualshive

Page: 15 / 42

Fender Cyber-Twin Service Manual Download Page 15

FX KILL/ FOOTSWITCH IS NOT WORKING

NO

YES

NO

YES

NO

YES

NO

YES

NO

YES

NO

YES

NO

YES

NO

YES

See Footswitch Notes on

Digital I/O Board Section

Schematics

(0055766000)

Power

Supply

OK

Voltage on

U26 Pins

4,5,10,11,12

Digital Activity

on U26 Pins 7&15

Troubleshoot

Power Supply

Troubleshoot area

around J3 or J5

Ribbon Cable P4

OK

Digital Activity

on U26 Pin 13

Swap U26

SN74HC166N

Ribbon Cable P4

OK

Swap Ribbon

Cable P4

Ribbon Cable P7

OK

Swap Ribbon

Cable P7

Swap Front Panel

PCB

(0055754000)

Ribbon Cable P7

OK

Swap Ribbon

Cable P7

Swap Front Panel

PCB

(0055754000)

Swap Ribbon

Cable P4

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Summary of Contents for Cyber-Twin

Page 1: ...ooting Guides Step by step User interface Flow charts Cyber Twin Presets Parts lists PCB assy Main PCB assy Host PCB assy Frnt Panel PCB assy Analog I O Chassis assembly Cabinet assembly End item Schematics drawings Fender Musical Instruments Corp 7975 North Hayden Road Scottsdale AZ 85258 ...

Page 2: ...indicate the required use of that specific part This is necessary for RELIABILITY and SAFETY requirements DO NOT USE A SUBSTITUTE A coded naming convention is used in the description of certain parts The codes and what they mean are as follows CAPACITOR CODES HARDWARE CODES CAP AE Aluminum Electrolytic BLX Black Oxide CAP CA Ceramic Axial CR Chrome Plated CAP CD Ceramic Disk HWH Hex Washer Head CA...

Page 3: ...mpedance 20kΩ Nominal level 10dBV 4dbu switchable SPDIF line out jack RCA jack digital stereo XLR output jacks 0dBV balanced stereo mono switchable Impedance 300Ω balanced Tube complement Two Groove Tubes 12AX7WA Speakers Two Celestion G12T 100 8Ω 12 P N 054420 Fuses Primary 100 120V F4A 125V Secondary Digital supply F2A Analog supply 2 x T1A Footswitch Four button remote Quick Access key access 5...

Page 4: ...peakers are OK and there is no Audio then check the Power Supplies 5 If the Power Supplies are OK check for Audio on Effects Send 5 1If there is no Audio on Effects Send 5 1 1 Check for Audio on U7 Pin1 on the Main PCB 5 1 2 If there is Audio on U7 then swap the Analog I O PCB 5 1 3 If there is no Audio on U7 then check for Audio on P1B Pin 7 8 on the Host PCB 5 1 4 If there is no Audio on P1B Pin...

Page 5: ...l Test described on the Motor Pot A D Section Schematics 0055766000 Sheet 4 MIDI IS NOT WORKING Setup Follow the Midi Test instructions described on the Digital I O Board Section Schematics 0055766000 Sheet 3 1 Check for Midi activity on the Midi test points 2 Check for Midi activity on P5B Pin 1 3 2 1If there is Midi activity on P5B Pin 1 3 then troubleshoot in the area around U33 and U34 or swap...

Page 6: ... the Power Supply is OK check the area around J3 and J5 3 If the Voltages are correct check for Digital Activity on U26 Pins 7 15 3 1 If there is no Digital Activity on Pins 7 15 check the Ribbon Cable P4 and swap if necessary 3 1 1 If the Ribbon Cable on P4 is OK check the Ribbon cable on P7 Swap if necessary otherwise swap the Front Panel PCB 0055754000 4 If there is Digital Activity on Pins 7 1...

Page 7: ...UME or MASTER past 1 Unplug connector from L MONO EFFECTS RETURN jack or the HEADPHONES jack NO EFFECTS What to check The effects function in the FX Menu is turned to NONE The effect output level is turned to 1 0 FX Kill switch is enabled How to solve the problem Press the FX menu button and turn on an effect Turn the effects level past 1 0 on the FX LEVEL knob Use the FX Kill footswitch to disabl...

Page 8: ...TRANSMIT CHANNEL on the Cybertwin is turned OFF How to solve the problem Connect the MIDI cables as follows Cybertwin MIDI IN Device MIDI OUT Cybertwin MIDI OUT Device MIDI IN Press the UTILITY menu button 5x to get to the MIDI RECEIVE CH function and set the RECEIVE CHANNEL to the same channel as the transmitting device or set the RECEIVE CHANNEL to OMNI Press the UTILITY menu button 6x and turn ...

Page 9: ... Speaker wiring has been switched How to solve the problem Press the AMP menu button 11x to get to the LINE SPKR PHASE function and turn it to STANDARD POLARITY Connect the white cable to the positive speaker connection and the black cable to the negative speaker connection EXPRESSION PEDAL DOES NOT WORK What to check The expression pedal is plugged in incorrectly The EXPRESSION PEDAL function is ...

Page 10: ...RECEIVE CHANNEL to OMNI Press the UTILITY menu button 4x to get to the CONTINUOUS CONTROLLER function and turn it to the same value as the foot pedal Press the AMP menu button 16x to get to the CONTINUOUS CONTROLLER function and turn it to the parameter you would like to control DRY GUITAR SIGNAL ON SPDIF OUTPUT What to check SPDIF PATCHING is switched to GUITAR DIRECT OUT How to solve the problem...

Page 11: ...s Troubleshoot Power Supplies Ribbon Cables OK Swap Ribbon Cables Swap Host PCB 0055736000 Audio on Effects Send Audio on U7 Pin1 Main PCB 0055766000 Audio on P3B Pin7 8 Analog I O PCB 0056333000 Swap Analog I O PCB 0056333000 Audio on P2B Pin1 3 Host PCB 0055736000 Audio on P1B Pin7 8 Host PCB 0055736000 Swap Host PCB 0055736000 Troubleshoot Pre Amp Section on Main PCB 0055766000 Audio on P1B Pin...

Page 12: ...66000 Amp OK Motor Pot OK Power Supplies OK Voltage on PW Pins 1 8 while running Pot test Troubleshoot Power Supplies in Motor Pot A D Section on Main PCB 0055766000 Swap Motor Pot Voltage on Pin1 3 of BA6218 Controller Proceed to Digital Test described on Motor Pot A D Section Schematic 0055766000 Swap BA6218 Controller ...

Page 13: ...d on Digital I O Board Section Schematics 0055766000 Midi is working Midi Activity on TP 47 48 49 Midi Activity on P5B Pin1 3 Swap Digital I O PCB 0055766000 Ribbon Cable on P5 OK Ribbon Cable on P6 OK Swap Ribbon Cable on P5 Swap Ribbon Cable on P6 Swap Host PCB 0055736000 ...

Page 14: ...EADPHONES ARE NOT WORKING NO YES NO YES Audio Output through Speakers with Headphones unplugged Proceed to NO AUDIO worksheet Ribbon Cable on P3 OK Swap Ribbon Cable on P3 Swap Analog I O PCB 0056333000 ...

Page 15: ...U26 Pins 4 5 10 11 12 Digital Activity on U26 Pins 7 15 Troubleshoot Power Supply Troubleshoot area around J3 or J5 Ribbon Cable P4 OK Digital Activity on U26 Pin 13 Swap U26 SN74HC166N Ribbon Cable P4 OK Swap Ribbon Cable P4 Ribbon Cable P7 OK Swap Ribbon Cable P7 Swap Front Panel PCB 0055754000 Ribbon Cable P7 OK Swap Ribbon Cable P7 Swap Front Panel PCB 0055754000 Swap Ribbon Cable P4 ...

Page 16: ...Cyber Twin Presets ...

Page 17: ... C117 118 C122 124 C128 5 0042001001 CAP CA 33Pf 100V LL C48 C54 C69 C99 C104 3 0038701001 CAP CA 470Pf 50V LL C60 C134 C146 2 0051459003 CAP CD 560Pf 500V LL C32 33 1 0025995000 CAP CD 8200Pf 1000V 20 C149 38 0034788003 CAP CR 1Uf 50V 20 2 LS C13 C16 C18 C22 23 C50 C58 59 C61 62 C67 C70 C72 C75 77 C80 C83 C85 C87 89 C92 93 C100 C102 C110 112 C116 C129 C135 C140 141 C151 154 2 0027255003 CAP MPF 0...

Page 18: ...O 220 U30 U32 2 0050849000 HEATSINK PCB LEVEL 576012U U28 U31 2 0039420000 SCRW M 4 40x3 8 PHP SS SEMS U28 U31 2 0097360000 NUT HEX 4 40 EX LOCK U28 U31 1 0055881000 HEATSINK PLATE 4 PLACE HS1 3 0032908000 SCRW TF 6 32x3 8 PHP ZI HS1 1 0055995000 IC 3 TO 8 DECODER 74HC138 U16 1 0055996000 IC 8 BIT A D TLC542 U10 4 0055997000 IC 8 BIT ADDR LATCH 74HC259 U11 U13 U17 U21 1 0055985000 IC 8 BIT SHIFT R...

Page 19: ...5 2 2k LL R86 R95 R119 2 0029455001 RES CF 1 4W 5 2 4k LL R4 R8 2 0029006001 RES CF 1 4W 5 20k LL R84 R100 11 0025059001 RES CF 1 4W 5 220k LL R41 R52 R59 R108 R124 R127 R134 R138 R160 R163 164 12 0024956001 RES CF 1 4W 5 220ohm LL R87 R121 R128 R139 R149 R155 R166 167 R196 R204 R208 209 2 0024987001 RES CF 1 4W 5 22k LL R20 R32 1 0029450001 RES CF 1 4W 5 240k LL R39 1 0025060001 RES CF 1 4W 5 270...

Page 20: ...MT 100 Q313 Q413 2 0028759000 XSTR PNP 2SA1306A TO 220P Q311 Q411 2 0014866003 XSTR PNP MPSW92 TO 226AE Q305 Q405 4 0040903000 INSULATOR MICA TO 218 Q305 Q405 Q312 Q412 10 0027638000 SCRW TF 4 40x3 8 HWHS ZI 1 HD Q305 Q405 Q310 312 Q410 412 U30 U32 8 0032937000 WSHR CONE Q305 Q405 Q310 312 Q410 412 1 0056865000 WIRE SET PCB CYBER TWIN WJ1 to WJ2 WIRESET ON MD 0056549000 1 0055765000 PCB FAB CYBER ...

Page 21: ... R40 R43 6 0056430004 RES 0805 MF 1 10W 5 47 ohm R22 24 R26 27 R30 9 0053550004 RES 0805 MF 1 10W 5 180 ohm R13 R31 32 R41 42 R48 49 R59 60 1 0055974004 RES 0805 MF 1 10W 5 240 ohm R16 11 0053549004 RES 0805 MF 1 10W 5 560 ohm R1 3 R5 7 R9 R11 12 R14 15 14 0056401004 RES 0805 MF 1 10W 5 1k R34 36 R38 R44 46 R51 R53 55 R61 63 9 0053546004 RES 0805 MF 1 10W 5 2k R8 R10 R39 R52 R56 58 R64 R77 20 0055...

Page 22: ... COMB CYBER TWIN FRONT PANEL PRINTED CIRCUIT BOARD ASSEMBLY ANALOG I O QTY PART DESCRIPTION REFERENCE DESIGNATION 2 0048451000 BUTTON PUSH OFF WHITE S1 2 14 0028467003 CAP AE RDL 22uF 50V 20 C10 C13 14 C16 17 C23 C25 C27 C29 C31 33 C46 47 4 0051408003 CAP CD 47pF 500V 5 C30 C34 C39 C42 16 0051457003 CAP CD 100pF 500V 5 C1 4 C12 C15 C18 19 C26 C28 C35 36 C40 41 C45 C48 2 0051406003 CAP CD 220pF 500...

Page 23: ...T 6 1 0056588000 CABLE ASSY RIBBON 10 CKT 6 1 0056589000 CABLE ASSY RIBBON 12 CKT 6 2 0056854000 CABLE ASSY RIBBON 10 CKT 4 3 0056339000 KNOB DATA WHEEL SMALL 1 0056340000 KNOB DATA WHEEL LARGE 9 0055856000 KNOB VINTAGE D SHAFT CONTROLS 1 0039236000 SWITCH ROCKER DPST PSEUDO IEC REF 0040582000 SWITCH DPST 250 TAB GLOBAL REF 0020794000 FUSE QA 20mmX5mm 250V F2A PRIMARY FUSE 220 240V 1 0053884000 FU...

Page 24: ...2 1 0055989000 VFD 20T202DA1J VACUUM FLOURESCENT DISPLAY REF 0056549000 WIRE SET CHS CYBER TWIN 1 0056317000 XFMR PWR CYBER TWIN 120V REF 0056318000 XFMR PWR CYBER TWIN 230V REF 0056319000 XFMR PWR CYBER TWIN 100V CABINET ASSEMBLY QTY PART DESCRIPTION REFERENCE DESIGNATION 4 0019275000 INSERT GLIDE CUSHION 1 27 DIA FEET 4 0019276000 GLIDE CAB 1 24x 335 NI CAB FEET 2 0019279000 HANDLE CAP 2 HOLE NI...

Page 25: ...F 0053997000 CORD PWR W IEC CONN 100V JPN 1 0057518000 COVER DSP 212 1 0023192000 NAMEPLATE FNDR 65 TWIN 994093 LOGO 8 0026577000 SCRW M 10 32x1 PHP BLX SPEAKERS 10 0029527000 WSHR FNSH 8 5 8 FLNGD BLX WX CHASSIS SCREWS 10 0036199000 SCRW M 8 32x1 3 16 OHP BLX CP CHASSIS 3 0037985000 SCRW SMA 2x3 8 PHP BLX NAMEPLATE 1 0051894000 FOOTSWITCH ASSY 4 BUTTON DSP 1 0057172000 FOOTSWITCH ASSY 1 BUTTON FX...

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