Fender Ultimate Chorus User manual

ULTIMATE CHORUS
SERVICE MANUAL
CONTENTS:
Notices
Specifications
Parts lists:
PCB assembly
Chassis assembly
Cabinet assembly
Footswitch assembly
Miscellaneous
Schematics/diagrams
Fender Musical Instruments Corp. 7975 North Hayden Road Scottsdale, AZ 85258

ULTIMATE CHORUS
(This is the model name for warranty claims)
SERVICE MANUAL
JUNE 1995
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

ULTIMATE CHORUS
SPECIFICATIONS
Product Release No.: PR 204 (This is not a model number)
Input Impedance: Greater than 1M Ohm
Nominal Level: 100mV
Power output: 65 Watts RMS @ 5% T.H.D. per channel =
130 Watts RMS
Rated Load Impedance: 8 ohms per channel
Mono Effects Loop: Output impedance: 1kΩ
Input impedance: 25kΩ
Nominal level: -10dBV
Stereo Effects Loop: Nominal Level: -10dBV
Output Impedance: 1k Ohms
Input Impedance: 94k Ohms
Specifications for each channel –
Left on Tip, Right on Ring
Dimensions: Height:18 1/2" (47.0 cm)
Width: 26 1/8” (66.0 cm)
Depth: 10 1/4" (26.0 cm)
Weight: 47 lbs. (21.3 kg)
Product specifications are subject to change without notice
THEORY OF OPERATION
NORMAL CHANNEL
The first stage (U1A) sets up the initial response of the amplifier. It provides a second order high-pass filter
with a 3dB down point of 60 Hz, and a gain of about 4. The output of U1A splits to feed the NORMAL and
DRIVE channels. For the NORMAL channel, the signal feeds through the NORMAL VOLUME control
(R11) to U1B. The output of U1B drives through the tone controls and feeds summing amplifier U4A.
DRIVE CHANNEL
The signal from U1A feeds a special tone-shaping circuit which optimizes the frequency response for the
distortion circuit that follows. U2A provides the variable gain adjustment that drives the distrotion circuit. It
also acts as a bandpass filter with 3db down points at 90Hz and 4kHz. JFET Q2 mutes the input to the
distortion circuit when in the NORMAL channel mode. Diodes CR4 and CR5 are used as a voltage clamp
to prevent excessive voltage from damaging the JFET. U2b is the distortion circuit. The signal couples to

ULTIMATE CHORUS
THEORY OF OPERATION (CONT)
U3A, which contains a tone shaping circuit that enhances the distortion characteristics. The signal is then
fed to the PRESENCE control, DRIVE VOLUME control, and to U3B. U3B drives the tone controls, and
feeds the signal through JFET Q3 to summing amplifier U3A.
REVERB AND EFFECTS LOOP
The output from U4A splits to feed U4B and the reverb drive circuit U5B. U5A senses the return signal
from the reverb pan and feeds the NORMAL REVERB (R60) and DRIVE REVERB (R63) controls. When
switching between channels, JFETs Q4 and Q5 select the reverb signal from the respective reverb control
pot. This allows different levels of reverb for each channel. The reverb signal and dry signal are summed
at U4B. The output from U4B drives the MONO EFFECTS SEND jack (J3), is normalled to the MONO
EFFECTS RETURN jack (J4) then splits to feed the chorus and stereo circuitry. U7A represents the left
channel, and U7B the right channel. The output signals from U7A & U7B drive the STEREO EFFECTS
SEND jack (J5), and are normalled to the STEREO EFFECTS RETURN jack (J6), and feed the left and
right power amplifiers.
CHORUS
The input signal to the Chorus circuit is capacitivly coupled to U6B, which drives the Bucket Brigade Device
(BBD) U13. Trimpot R75 set the DC bias for U6B and U6A. When properly adjusted, the ouput from U6A
will display symmetrical clipping. (Refer to the adjustment procedure on the service diagram). The BBD is
clocked by U12 at 180kHz.
The 180kHz carrier clock is Frequency Modulated by the Low Frequency Oscillator (U11), which deviates
the carrier at maximum DEPTH from 60kHz to 300kHz. The RATE of deviation runs from about 0.3Hz to
8.7Hz. The FM deviation on top of the BBD delay results in a pleasing choral effect.
C39 and R72 (@U6B) provide pre-emphasis above 7kHz. At the output of U6A, R84 and C47 provide the
de-emphasis. This helps to reduce noise. C43, C44, and C46 filter out clock noise. The Dry or Chorus
signal is selected by JFETs Q6 and Q7, buffered by U7b, and fed through the STEREO EFFECTS LOOP
to the right channel power amplifier.
CHANNEL, CHORUS, AND REVERB SWITCHING
The A.C. voltage from the power transformer secondary is tapped off through resistor R134, and presented
to the footswitch jack (Approx. 20 V RMS). By rectifying the positive or negative side of the waveform, a
D.C. control voltage is created and sensed by comparators U10A and U10B. Diode’s CR57 and CR59 set
up the reference voltages at the non-inverting inputs of the comparators. Therefore the control voltage (@
inverting inputs) must toggle above and below the reference voltage to cause the output of the comparator
to toggle between +15Vdc and –15Vdc. The output of comparator U10A controls the indicator LEDs and
JFETs Q1 through Q5. JFETs Q1 and Q3 select the output of either the NORMAL or DRIVE channel.
When the CLEAN channel is active, JFET Q2 mutes the signal that feeds the input of the DRIVE channel.
This prevents crosstalk. JFETs Q4 and Q5 select the reverb return signal through the NORMAL REVERB
or DRIVE REVERB controls. This allows different levels of reverb for the NORMAL and DRIVE channels.
The output of U10B provides a control voltage to the following three sections of the Chorus circuit:
The base of transistor Q13, which enables the Chorus indicator LED.
The Low Frequency Oscillator U11.
JFETs Q6 and Q7, which determine if the dry or chorus signal is fet to U7B.
INHIBIT/MUTING
The inhibit circuit provides two functions. First, without a guitar cable plugged into the input jacks, all of the
JFETs will mute their respective signal paths. Channel switching will not operate. The muting will be
disabled when a cable is inserted at the input jacks. Secondly, if a guitar cable is connected to one of the
input jacks, and then the power is switched on, the muting circuit will be disabled after a short delay (about

ULTIMATE CHORUS
THEORY OF OPERATION (CONT)
1 second) set up by R139 and C73. This allows time for the circuitry to stabilize, which prevents turn-on
pops and snaps.
The inhibit switches are located within the input jacks. The control voltage through CR55 to U10A locks the
unit in the DRIVE channel mode, muting the NORMAL channel and NORMAL REVERB. At the same time,
the inhibit voltage mutes the DRIVE channel and DRIVE REVERB. AT JFET Q6, the Chorus output has
it’s own turn-on delay circuit. If the Chorus button is engaged before power-up, R88 and C49 will provide a
delayed turn-on for the Chorus. Again to prevent pops and snaps.
POWER AMPLIFIERS (The following reference designators apply to the Left amplifier)
U8 (MC1436) is a high-voltage op-amp that provides voltage gain for the power amplifier. CR28 and CR29
act as differential protection diodes that prevent the positive and negative inputs of U8 from becoming more
than 0.6 volts apart. Bootstrap Capacitors C59 and C60 sense the output through R107. This provides
more voltage swing for the opamp with respect to ground.
Diodes’ CR30-CR33 (BYV26D) make up the Fixed-Bias circuit for the output transistors. The Bias Diodes
mount through a hole in the transistor heatsink. This ensures the Diodes will properly track the
temperature of the output transistors. These Diodes were selected because they exhibit a 2mV decrease
in Knee Voltage for every 1 degree (Celsius) increase in temperature. Pin 6 of U8 is at 0Vdc. Therefore
the Bias Diodes provide 2 voltage drops (+/-1.2volts) to the Base of Darlington Transistors Q8 and Q9.
TROUBLESHOOTING TIP: With the circuit board removed, the heatsinking for the output transistors is
greatly reduced. With no signal applied, the Bias/Idle current will cause the output transistors to quickly
overheat. Use a jumper wire to short across the bias diodes. The easiest way is to jumper from the bases
of opposing output transistors. This will turn off the transistors.
Diodes’ CR34-CR37 make up a voltage clamp protection circuit. IF the bases of the output transistors
reach 4.5 volts with respect to the output, the diodes will turn on, clamping the bases of the output
transistors. The power amplifiers each provide 63 watts at 5% THD into a single 8 ohm speaker.
PARTS LIST
PRINTED CIRCUIT BOARD ASSEMBLY
QTY PART # DESCRIPTION REFERENCE DESIGNATION
1 039246 PCB ASY “ULTIMATE CHORUS” ALL VOLTS (STUFFED)
1 031910 BREAKER THERMAL 15A 155/195 DEG F TS1
3 028104 BUTTON PUSH SWITCH BLACK (@ S1,2,3)
1 028577 CABLE ASSY REVERB 30” (REVERB CABLE)
6 038689 CAP AE AX 100V .47uF 20% C14,16,29,32,38,48
4 038690 CAP AE AX 100V 1uF 20% C49,73,80,83
7 026517 CAP AE AX 50V 2.2uF 20% C37,55,56,58,64,65,67
2 038691 CAP AE AX 50V 4.7uF 20% C57,66
2 038692 CAP AE AX 35V 10uF 20% C3,4
10 025960 CAP AE AX 16V 22uF 20% C5,30,36,42,51,53,61,62,70,71
1 038693 CAP AE AX 50V 47uF 20% C78
4 028471 CAP AE RDL 50V 47uF 20% C59,60,68,69
2 028474 CAP AE RDL 25V 100uF 20% C88,89
1 028479 CAP AE RDL 25V 220iF 20% C41
2 031756 CAP AE RDL 50V 4700uF C84,85
2 038873 CAP CA 100V 22pF 5% C28,82
3 038698 CAP CA 100V 47pF 5% C35,54,63
4 038699 CAP CA 100V 100pF 5% C33,40,50,52
1 039259 CAP CA 100V 220pF 5% C46
3 038701 CAP CA 50V 470pF 5% C7,15,25

ULTIMATE CHORUS
PRINTED CIRCUIT BOARD ASSEMBLY (CONT)
QTY PART # DESCRIPTION REFERENCE DESIGNATION
1 038874 CAP CA 50V 560pF 5% C19
2 039263 CAP CA 100V 1000pF 5% C6,22
2 039264 CAP CA 100V 1500pF 5% C44,81
5 039265 CAP CA 100V 2200pF 5% C17,20,21,31,39
1 039266 CAP CA 100V 3300pF 5% C18
1 039267 CA[ CA 100V 3900pF 5% C45
2 039268 CAP CA 50V 4700{F 5% C1,2
1 038702 CAP CA 50V 6800pF 5% C12
3 038703 CAP CA 50V .1uF 10% C79,86,87
2 036234 CAP PF RDL 100V .015uF 10% C23,24
2 033590 CAP PF RDL 100V .022uF 10% C11,13
3 033591 CAP FP RDL 100V .033u 1% C34,74,76
4 033592 CAP PF RDL 100V .047uF 10% C43,47,75,77
1 033594 CAP PF RDL 100V .056uF 10% C10
2 027281 CAP MPF 63V .22uF 10% C9,27
3 027289 CAP MPF 63V .47uF 10% C8,26,72
1 019994 CONTROL T-POT 100K PC MTG 20% R75 (TRIMPOT CHORUS BIAS ADJ)
2 037937 CONTROL SNAPIN 2K 15A TAPER R19,51 (MID)
4 027940 CONTROL SNAPIN 50K 15A TAPER R17,18,49,50 (TREBLE, BASS)
4 027941 CONTROL SNAPIN 50K B TAPER R11,43,60,63 (VOLUME, REVERB)
1 027942 CONTROL SNAPIN 50K 2B CTR DETN R40 (PRESENCE)
2 027945 CONTROL SNAPIN 100K TAPER R160,167 (RATE, DEPTH)
1 027947 CONTROL SNAPIN 100K 30C TAPER R30 (GAIN)
47 006260 DIODE 1N4448 75 PRV CR1-29,34,37,40,41,46,49,52-63
4 064089 DIODE 1N4003 200PRV 1AMP CR38,39,50,51
8 028776 DIODE BIAS BYV26D LEAD FORMED CR30-33,42-45
4 029045 DIODE 6A4 400V 6AMP LEAD FORMED CR64-67
4 027329 DIODE ZENER 1N5228B 3.9V CR35,36,47,48
2 028119 DIODE ZENER 1N5353B 16V 5 WATT CR68,69
14 025802 FASTON TAB MALE .250X.032 PCB MT CP1-14
2 025996 FUSE CLIP PCB .250 &5mm FUSE (@ XF1)
1 039982 FUSE QA 1-1/4”X1/4” 250V 4AMP F1 (100/120V DOM)
1 020794 FUSE QA 20mmX5mm 250V 2 AMP F1 (EXPORT 230V ONLY)
1 031725 HEATSINK PLATE (M-80) (TRANSISTOR MOUNT)
8 016795 IC DUAL OP AMP TLO72C U1-7,11
1 031611 IC DUAL OP AMP PC4560 U10
2 028047 IC OPAMP MC1436P1 U8,9
1 029671 IC MN3007 BUCKET BRIGADE U13
1 029672 IC MN3101 CLOCK GEN/DRIVER U12
4 036815 INSULATOR SILICONE TO-3P (SIL PAD)
4 040903 INSULATOR MICA TO-218 (MICA PAD)
4 031570 JACK PHONE PCB STEREO PREMIUM J1,2,5,6(INPUTS STEREO SEND/RETURN)
3 037036 JACK PHONE PCB MONO CA PREMIUM J3,4,7 (MONO SEND/RETURN)
18 020888 JUMPER WIRE 22GA .5X.175 W1-18
1 028039 LED 5X5mm RED SLB-55VR3 LD3 (DRIVE CHANNEL LED)
1 028098 LED 5X5mm GREEN SLV-55MG3 LD2 (NORMAL CHANNEL LED)
1 033177 LED 5X5mm BI-COLOR RED/GREEN LD4 (CHORUS LED)
1 9902202281 LED RED LNG LEAD LUMEX CS02 LD1 (DISTORTION LED)
1 039245 PCB ULTIMATE CHORUS (BLANK BOARD)
4 024947 RES CF 1/4W 470Ω5% R56,74,172,173
3 024952 RES CF 1/4W 100Ω5% R8,9,155
2 028015 RES CF 1/4W 130Ω5% R15,47
1 024961 RES CF 1/4W 470Ω5% R10
9 024965 RES CF 1/4W 1K 5% R31,67,92,95,109,110,128,129,136
2 024969 RES CF 1/4W 1.5K 5% R22,58
1 024972 RES CF 1/4W 2.7K 5% R84
4 024973 RES CF 1/4W 3.3K 5% R14,29,46,161
4 024975 RES CF 1/4W 3.9K 5% R98,99,117,118
1 024977 RES CF 1/4W 4.7K 5% R55
4 028034 RES CF 1/4W 5.1K 5% R5,78,79,171
1 024979 RES CF 1/4W 6.8K 5% R6
2 025942 RES CF 1/4W 7.5K 5% R41,42
13 024981 RES CF 1/4W 10K 5% R57,72,135,138,142,143,149,150,153,157-159,165

ULTIMATE CHORUS
PRINTED CIRCUIT BOARD ASSEMBLY (CONT)
QTY PART # DESCRIPTION REFERENCE DESIGNATION
1 029002 RES CF 1/4W 11K 5% R26
2 024985 RES CF 1/4W 15K 5% R7,25
5 024986 RES CF 1/4W 18K 5% R81-83, 162,169
5 024987 RES CF 1/4W 22K 5% R16,35,36,38,48
4 024988 RES CF 1/4W 27K 5% R100,101,119,120
3 024989 RES CF 1/4W 33K 5% R23,24,166
1 029004 RES CF 1/4W 36K 5% R27
2 024991 RES CF 1/4W 39K 5% R13,45
9 024993 RES CF 1/4W 47K 5% R71,73,86,87,96,97,115,116,164,
1 024994 RES CF 1/4W 56K 5% R12
3 024995 RES CF 1/4W 68K 5% R1,2,37
1 028153 RES CF 1/4W 75K 5% R44
1 024996 RES CF 1/4W 85K 5% R54
13 024997 RES CF 1/4W 100K 5% R65,66,69,70,76,77,90,91,96,94,137,470,168
2 024998 RES CF 1/4W 120K 5% R20,61
1 024999 RES CF 1/4W 150K 5% R21
2 025059 RES CF 1/4W 220K 5% R59,85
2 025060 RES CF 1/4W 270K 5% R52,62
2 025061 RES CF 1/4W 330K 5% R80,170
3 025065 RES CF 1/4W 470K 5% R53,68,163
3 028018 RES CF 1/4W 510K 5% R3,4,32
1 025066 RES CF 1/4W 560K 5% R64
2 025067 RES CF 1/4W 680K 5% R102,121
1 025068 RES CF 1/4W 820K 5% R39
10 025069 RES CF 1/4W 1M 5% R33,34,88,139,141,144,147,148,151,152
2 025084 RES CF 1/4W 10M 5% R28,89
1 027869 RES CF 1/2W 470Ω5% R154
2 028045 RES MF 1W 220Ω5% R107,126
4 028030 RES MF 1W 680Ω5% R103,105,122,124
1 029722 RES MF 1W 1K 5% R156
5 028029 RES MF 1W 1.5K 5% R104,106,123,125,134
2 028038 RES MF 1W 3.9K 5% R145,146
4 037354 RES CF 1W 4.7K 5% R108,111,127,130
6 028028 RES WW BT 5W .47Ω10% R112-114,131,133
1 028898 RES WW BT 5W 240Ω5% R174
1 036940 RES WW BT 5W 270Ω10% R175
4 027638 SCREW TF 4-40X3/8 HWH ZI (TRANSISTOR MOUNTING)
6 032908 SCREW TF 6-32X3/8 PHP ZI (HEATSINK TO PCB MOUNT)
1 029697 SHILED 6”X1.25”
1 036178 SPACER LED .5X.1 BRN (@ LD4)
2 9904701440 SPACER LED .7X.125 BLUE (@ LD2,3)
4 025936 STANDOFF PCB PUSH ON NYL 3/8L (PCB TO CHASSIS MOUNT)
3 028091 SWITCH PUSH SLFLK DPDT S1,2,3 (WITHOUT BUTTON) (MID BOOST,
DDRIVE SELECT, CHORUS SELECT)
1 026411 THERMISTOR 2.2Ω8AMP TH1
4 028169 WASHER SHLDR NYL 5/32X1/4 (TRANSISTOR MOUNTING)
7 014689 XISTOR N-CH JFET J111 TO-92 Q12,14
2 016739 XISTOR NPN 2N4401 TO-92 Q12,14
1 016742 XISTOR PNP 2N4403 TO-92 Q13
2 028114 XISTOR NPN TIP142 TO-218AC Q8,10
2 028115 XISTOR PNP TIP147 TO-218AC Q9,11
CHASSIS ASSEMBLY
QTY PART # DESCRIPTION REFERENCE DESIGNATION
1 039248 CHASSIS ASSY ULTRA CHORUS 120V (COMPLETE CHASSIS)
2 021709 BUSHING SR .437X.062X13/32 BLK (@ SPEAKER CABLE)
1 026116 BUSHING SR .500X.063X7/16 BLK (@ REVERB CABLE)
1 026038 BUSHING SR .625X.062X37/64 BLK 100/120V (@ POWER CABLE)
1 010401 BUSHING SR .625X.125X37/64 WHT 230V (@ POWER CABLE)
1 026541 CABLE ASSY PWR W/.250 TAB 120V (POWER CABLE 100/120V)
1 033331 CABLE ASSY PWR W/.250 TAB 230V (PWR CABLE 230V EXPORT)

ULTIMATE CHORUS
CHASSIS ASSEMBLY (CONT)
QTY PART # DESCRIPTION REFERENCE DESIGNATION
1 038602 CABLE ASSY PWR AUST W/.250 TAB (240V AUSTRALIA ONLY)
1 033045 END BELL XFMR (PWR CHOR) (TRANSFORMER MOUNT)
1 031726 HEATSINK BAR (M-80) (COUPLER TO CHASSIS)
14 026402 KNOB POINTER BLAKC
4 028591 NUT ACORN 8-32 (TRANSFORMER MOUNT)
1 049104 PANEL FRONT LEXAN ULTIMATE CHROUS
1 049105 PANEL REAR VINYL ULTIMATE CHORUS
5 028500 SCREW TF 8-32X3/4 SLTD HWH ZI (HEATSINK TO CHASSIS)
4 028937 SCREW TF 6-32X5/8 ROLOK PHP ZI (PCB TO CHASSIS MOUNT)
1 038900 SCREW TF 6-32X1/4 [J[ ZO (@ GROUND LUG)
1 039236 SWITCH PWR ROCKER DPST PSEUDO-IEC
.870”X1.181” HOLE
(100/120V)
1 040582 SWITCH PWR ROCKER DPST IEC
.870”X1.181” HOLE
230V EXPORT
4 030007 WASHER LOCK INTL 8X.330X.02 ZI (TRANSFORMER MOUNT)
1 031668 XFORMER PWR 120V 125 WATT (120V DOMESTIC)
1 039253 XFORMER PWR 100/230V 125 WATT (100V/115V/230V EXPORT)
CABINET ASSEMBLY
QTY PART # DESCRIPTION REFERENCE DESIGNATION
1 040071 CABINET ASSY ULTRA CHORUS/PRO 185 (COMPLETE CABINET)
4 023505 CASTER MOUNTING PLATE
4 023513 CASTER SWIVEL STEEL
4 026566 CORNER 2 HOLE W/ TAB NI (BOTTOM FRONT, TOP REAR)
2 026568 CORNER 3 HOLE NI (BOTTOM REAR)
4 029821 EYELET RFLNGD .215 OD X.315 L BRASS (REVERB PAN MOUNT)
4 019275 GLIDE CUSHION INSERT (RUBBER ONLY)
4 019276 GLIDE CABINET 1.24X.335 NI (STEEL ONLY)
1 040072 GRILLE ASSY “ULTRA CHORUS” (COMPLETE GRILLE)
1 011298 NAMEPLATE FENDER SMALL (LOGO)
12 021972 NUT T 10-32X3/4 STR 3 PRNG BLX (SPEAKER, HANDLE MOUNT)
1 028055 REVERB UNIT 800 OHM 8EB2C1B DN (PAN)
4 022244 SCREW M 10-32X1-1/8 OHP NI (HANDLE MOUNTING)
10 026571 SCREW CORNER MOUNTING
4 026625 SCREW WOOD 8X1” FH (GLIDE MOUNTING)
16 027199 SCREW SMAB 10X3/4 PHP NI (CASTER PLATE MOUNT)
2 018113 SCREW SMA #4X1/2” OHP BLX (NAMEPLATE MOUNTING)
8 026577 SCREW M 10-32X1” PHP BLX (SPEAKER MOUNTING)
5 029828 SCREW PB 8X3/4 PHP ZI (REVERB PAN/CBL CLMP MT)
6 036199 SCREW M 8-32X1-3/16 OHP BLX WX (CHASSIS MOUNT)
2 025923 SPEAKER 12” 8 OHM 75 WATT
6 029527 WASHER FNSH 8-5/8 FLNDG BLX WX (CHASSIS MOUNT)
FOOTSWITCH ASSEMBLY
QTY PART # DESCRIPTION REFERENCE DESIGNATION
1 029972 FOOTSWITCH 2 BTTN CHAN/CHORUS (COMPLETE FOOTSWITCH)
1 028895 CABLE ASSY FOOTSWITCH RT ANGLE 12” (FOOTSWITCH CABLE)
2 006260 DIODE 1N4448 SIGNAL BENT 75PRV CR1,2
1 037036 JACK PHONE PCB MONO CA PREMIUM J1
2 028039 LED 5x5mm RED SLB-55VR3 LD1,2
1 028448 PCB ASSY FTSW 2 BUTTON (STUFFED)
2 034921 SPACER .147X.250X.780 RND NYLON (LED SPACERS)
8 028889 SCREW SMB #6X1/4” PHP (END PANEL MOUNT)
2 028714 SWITCH PUSH SPDT S1,2
2 031899 WASHER NYL .485X.775X.150 TK (SWITCH SPACER)
MISCELLANEOUS
QTY PART # DESCRIPTION REFERENCE DESIGNATION
1 049106 MANUAL OWNERS ULTIMATE CHORUS
1 039243 SCHEM W/SERVICE DA. “ULTRA CHORUS” (USE FOR “ULTRA CHORUS” AND “ULTIMATE
CHORUS”