Fender Cyber-Twin Manual de usuario

CYBER-TWIN



p/n 022-9000-000 (120V)

SERVICE MANUAL

CONTENTS:

Notices

Specifications

Troubleshooting 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

CYBER-TWIN Service Manual

JANUARY 2001

IMPORTANT NOTICE:

The information contained herein is CONFIDENTIAL and PROPRIETARY to Fender Musical Instruments Corp. It is

disclosed solely for use by qualified technicians for purposes of equipment maintenance and service. It is not to be

disclosed to others without the expressed permission of Fender Musical Instruments Co. All specifications subject to

change without notice.

For warranty repair service, only Fender specified part numbers are to be used. It is recommended they also be used

for post-warranty maintenance and repair.

Parts marked with an asterisk (*) 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

CAP MPF = Metalized Polyester Film M = Machine Screw

CAP MY = Mylar NI = Nickel Plated

CAP PFF = Polyester Film/Foil OHP = Oval Head Phillips

PB = Particle Board

RESISTOR CODES PHP = Pan Head Phillips

PHPS = Pan Head Phillips Sems

RES CC = Carbon Comp SMA = Sheet Metal "A" Point

RES CF = Carbon Film SMB = Sheet Metal "B" Point

RES FP = Flame Proof SS = Stainless Steel

RES MF = Metal Film TF = Thread Forming

RES WW = Wire Wound ZI = Zinc Plated

CYBER-TWIN Service Manual

SPECIFICATIONS

Product Release No.: PR 393 (This is not a model number)

Part Number: 120V Version : 22-9000

240V Aus : 22-9030

230V UK : 22-9040

230V Eur : 22-9060

100V : 22-9070

Power Requirements: 360W

Power Output: 65 W (per channel, 130W total) @ 5% THD

Sensitivity: Adjustable using trim control

Preamp Input impedance: 900kΩ

Effects Loop:

Send impedance: 220kΩ

Return impedance: 20kΩ

Nominal level: -10dBV/+4dbu (switchable)

SPDIF line out jack: RCA jack, digital stereo

XLR output jacks: 0dBV, balanced, stereo/mono switchable

Impedance: 300Ωbalanced

Tube complement: Two Groove Tubes, 12AX7WA

Speakers: Two Celestion G12T-100 8Ω12" (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-pin MIDI type cord

Dimensions: Height:18 9/32" (46.4 cm)

Width: 26 1/8" (66.4 cm)

Depth: 12 1/8" (30.8 cm)

Weight: 55 lbs. (25 kg)

Product specifications are subject to change without notice

CYBER-TWIN Service Manual

Step by Step

Fender Cyber-Twin Troubleshooting Guide for Hardware Problems

NO AUDIO

Setup: Follow the instructions as stated under notes 8, on the Cyber-Twin Main Schematics

(0055766000 Sheet1).

1. Turn on the Power to the Cyber-Twin.

2. Does the Jewel LED come on?

1.1If the Jewel LED does not come on, but there is Audio, check the Jewel LED.

1.2If the Jewel LED does not come on and there is no Audio, check the Power Supplies.

2 Does the VFD (Vacuum Flourescent Display) come on?

2.1If the VFD does not come on, but there is Audio, check the VFD.

2.2If the VFD does not come on and there is no Audio, check the Power Supplies.

2.2.1 If the Power Supplies are OK then check the Ribbon cables.

2.2.2 If the Ribbon cables are OK, swap the Host board.

3 If both the Jewel LED and the VFD come on, but there is no Audio, then check the speaker

connections. Remove any rear panel audio connections (Headphones, FX etc).

4 If the Speakers 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 7 & 8, then troubleshoot the Pre-amp section on the

Main PCB.

5.1.5 If there is Audio on P1B Pin 7 & 8, then check for Audio on P1B Pin 1 & 2 on the

Host PCB.

5.1.6 If there is no Audio on P1B Pin 1 & 2, then swap the Host PCB.

5.1.7 If there is Audio on P1B Pin 1 & 2, then troubleshoot the Distortion section on the

Main PCB.

5.2If there is Audio on Effects Send.

5.2.1 Check for Audio on P3B Pin 7 & 8 on the Analog PCB.

5.2.2 If there is no Audio on P3B Pin 7 & 8, then swap the Analog I/O PCB.

5.2.3 If there is Audio on P3B Pin 7 & 8, then check for Audio on P2B Pin 1 & 3 on the

Host PCB.

5.2.4 If there is no Audio on P2B Pin 1 & 3, then swap the Host PCB.

5.2.5 If there is Audio on P2B Pin 1 & 3, then troubleshoot the Power Amp section on the

Main PCB.

CYBER-TWIN Service Manual

MOTOR POT DOES NOT WORK

Setup: Follow the Motor Pot Test instructions described on the Motor Pot A/D Section Schematics

(005576600 Sheet 4).

1. If the Motor Pots do not work then check if the Power Supplies are OK and troubleshoot if

necessary.

2. If the Power Supplies are OK, check the voltage on the PW# Pins while running the Pot test.

3. If the correct voltage is present on the PW# Pins, then swap the damaged Motor Pots.

4. If there is no voltage present on the PW# Pins, then check for the correct voltage, specified on

the Schematics, on Pin 1 & 3 of the BA6218 controllers.

5. If there is a voltage on the input of the BA6218 controllers, but the Motor Pot does not work,

then swap the damaged BA6218.

6. If there is no Voltage present on Pin 1 & 3 of the BA6218 controllers, then proceed to the

Digital 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 Digital I/O boards.

2.2If there is no Midi activity on P5B Pin 1 & 3, then check if ribbon cable on P5 is OK.

3 If the ribbon cable on P5 is OK, check the ribbon cable on P6, otherwise swap the ribbon

cable on P5.

4 If the ribbon cable on P6 is OK, swap the Host PCB, otherwise swap the ribbon cable on P6.

NO AUDIO ON HEADPHONES JACK

Setup: Follow the instructions as stated under notes 8, on the Cyber-Twin Main Schematics

(0055766000 Sheet1).

1. Check for Audio Output through the Speakers with Headphones unplugged.

2. If there is no Audio Output through the Speakers proceed to the previous troubleshooting

section NO AUDIO.

CYBER-TWIN Service Manual

NO AUDIO ON HEADPHONES JACK (cont)

3. If there is Audio Output through the Speakers, check if ribbon cable P3 is OK.

3.1If the ribbon cable is OK, then swap the Analog I/O PCB.

3.2 If the ribbon cable is defective, then swap the cable.

FX KILL/ FOOTSWITCH IS NOT WORKING

Setup: See Footswitch Notes on the Digital I/O Board Section Schematics (0055766000 Sheet 3).

1. Check the Voltage on U26 Pins 4,5,10,11,12.

2. If the Voltages are not correct check the Power Supply.

2.1.If 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 & 15, check for Digital Activity on U26 Pin 13.

4.1.If there is no Digital Activity on Pin 13 swap U26, otherwise check the Ribbon Cable P4

and swap if necessary.

4.1.1. If the Ribbon Cable on P4 is OK, check the Ribbon Cable on P7. Swap if

necessary, otherwise swap the Front Panel PCB (0055754000).

CYBER-TWIN Service Manual

Fender Cyber-Twin Troubleshooting Guide for User Interface Problems

NO SOUND

What to check:

- The LED ladder is not coming on when hitting a string.

- The TRIM, GAIN, VOLUME or MASTER is turned to 1.

- Something is plugged into the L/MONO EFFECTS RETURN jack, or the HEADPHONES jack.

How to solve the problem:

- Turn up the guitar VOLUME or the amp TRIM controls so that green LED’s turn on.

- Turn TRIM, GAIN, VOLUME 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 disable the function.

DELAY TIME CHANGE SOUNDS ABRUPT

What to check:

- The DELAY TIME CHANGE function is set to STEP.

How to solve the problem:

- Press the FX menu button 7x to get to the DELAY TIME CHANGE function, and turn it to

RAMP.

CYBER-TWIN Service Manual

NO REVERB

What to check:

- The REVERB control is turned to 1.

- The REVERB INPUT is turned to 1.0.

- FX Kill switch is enabled.

How to solve the problem:

- Turn the REVERB knob on the front panel past 1.

- Press the AMP menu button 6x to get to the REVERB INPUT function, and turn REVERB

INPUT past 1.0.

- Use the FX Kill Footswitch to disable the function.

NO MIDI RECEPTION/ TRANSMISSION

What to check:

- The MIDI connection between the Cybertwin and another MIDI device is incorrect.

- The MIDI RECEIVE CHANNEL on the Cybertwin is set to a different channel than the

transmitting MIDI device.

- The 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 the MIDI TRANSMIT CH to the desired channel.

AMP WILL NOT RECEIVE SysEx INFORMATION

What to check:

- The SysEx DEVICE ID is turned to a different value than when the SYSEX data dump was

done.

How to solve the problem:

- Press the UTILITY menu button 7x to go to the SYSEX DEVICE ID function, and set the

DEVICE ID to the same value as when the SYSEX data dump was completed or set the

SYSEX DEVICE ID to OMNI.

CYBER-TWIN Service Manual

AMP DOES NOT LOAD PRESETS OR WILL NOT SAVE A PRESET

What to check:

- DEMO MODE is turned ON.

- MEMORY PROTECT is turned ON.

How to solve the problem:

- Press the UTILITY menu button 1x to go to the DEMO MODE function and turn DEMO MODE

OFF.

- Press the UTILITY menu button 2x to go to the MEMORY PROTECT function and turn

MEMORY PROTECT OFF.

LOW END IN SOUND IS MISSING

What to check:

- LINE/SPKR PHASE is set to RIGHT or LEFT REVERSE POLARITY.

- 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 switched to an incorrect control parameter.

How to solve the problem:

- Plug expression pedal into the EXPRESSION PEDAL jack on the rear panel.

- Press the AMP menu button 15x to get to the EXPRESSION PEDAL function and turn it to the

desired control parameter.

CYBER-TWIN Service Manual

MIDI FOOT-PEDAL DOES NOT WORK

What to check:

- The MIDI RECEIVE CHANNEL on the Cybertwin is set to a different channel than the

transmitting MIDI device.

- The CONTINUOUS CONTROLLER on the Cybertwin is set to a different CONTINUOUS

CONTOLLER value on the foot-pedal.

- The CONTINUOUS CONTROLLER is switched to an incorrect control parameter.

How to solve the problem:

- 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 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:

- Press the UTILITY menu button 3x to get to the SPDIF PATCHING function and turn it to AMP

LINE OUT.

PROGRAM CHANGE DOES NOT WORK CORRECTLY

What to check:

- MIDI MAPPING is used incorrectly.

How to solve the problem:

- Press the UTILITY menu button 8x to get to the MIDI MAPPING function and map the correct

preset to the desired program change value.

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