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94 TWIN AMP
(This is the model name for warranty claims)
SERVICE MANUAL
JUNE 1995 REV A
TYPE PR266
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
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94 TWIN AMP
SPECIFICATIONS
Product Release No.:PR 266 (This is not a model number)
Part Number:120V Version : 21-4809
230V Version : 21-4889
Power Requirements:120V Version: 120 volts AC, 60 HZ, 360 watts.
230V Version: 230 volts AC, 50 HZ, 360 watts.
Input Impedance:Input 1: 1M -¦
Input 2: 136k -¦
Effects Loop:Pre Reverb.
Nominal Level: +2, -5.5, -13 dbv
Output Impedance: 4.2k-¦ maximum
Input Impedance: 130k-¦ minimum
Effects Mix Control:Continuously variable between the signal at the
EFFECTS SEND and EFFECTS RETURN jacks.
Reverb:Post effects loop.
Preamp Out: Post reverb, +1.3 dbv nominal level.
Recommended load: 22 k -¦ minimum.
Power amp in:+1.3 dbv sensitivity, 1130k-¦ input impedance.
Balanced Line Output:Derived from the output transformer, fully balanced.
+3 dbv nominal level into 600-¦ or greater.
Pin 1 floating, pin 2 (+), pin 3 (-)
Amplifier Load Impedance:Switch selectable for 4, 8, or 16 -¦.
Power Output:OUTPUT HIGH setting: 100 watts RMS, 5% THD.
OUTPUT LOW setting: 25 watts RMS, 5% THD.
Speaker Complement:Two Fender P.N 026488 Special Design 12 8 ohm
speakers wired in series.
Dimensions:Height: 20 3/4 (52.7 cm)
Width: 26 3/8 (67 cm)
Depth: 11 1/2 (29.2 cm)
Weight: 77 lbs. (35 kg)
Product specifications are subject to change without notice
