Sunn MODEL T, 21-3373, 21-3343, 21-3333, 21-3303 Service Manual
...
MODEL T
p/n 021-3303-000 (120V)
SERVICE MANUAL
CONTENTS:
Notices
Specifications
Parts lists:
MainPCB assembly
Effects PCB assembly
Chassis assembly
Cabinet assembly
Unit assembly
Footswitch assembly
Schematics
Service diagrams
Fender Musical Instruments Corp. 7975 North Hayden Road Scottsdale, AZ 85258
MODEL T
(This is the model name for warranty claims)
MAY 1998
IMPORTANT NOTICE:
The information contained herein is CONFIDENTIAL and PROPRIETARY to Fender Musical Instrum ents Corp. It is
disclosed solely for use by qualified technicians for purposes of equipment m aintenance and service. It is not to be
disclosed to others without the expressed permission of Fender Musical Ins truments Co. All specifications subjec t to
change without notice.
For warranty repair service, only Fender specified part numbers are to be used. It is recom mended 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 nec essary for RELIABILITY and
SAFETY requirements.
DO NOT USE A SUBSTITUTE!
A coded naming convention is used in the description of certain parts. T he 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 HW H = 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
1
SPECIFICATIONS
Product Release No.: PR 344 (This is not a model number)
Part Number: 120V Version : 21-3303
240V Aust : 21-3333
230V UK : 21-3343
230V : 21-3363
100V : 21-3373
Input impedance: 1 MΩ
Tubes: Four 6L6GC Tubes p/n 053980
Two 12AX7A Tubes p/n 023572
Four 12AX7WA Tubes p/ n 013341
Power output: 120 Watts RMS Arena
29 Watts RMS Club
1 kHz sine wave into 8Ω @ 5% THD Presence @ "1"
Power Requirements: 120V: 120 VAC 60 Hz, 360W
240V: 240 VAC 50 Hz, 360W
230V: 230 VAC 50 Hz, 360W
100V: 100 VAC 50/60 Hz, 360W
Speaker: Designed for use with Sunn 412 Loudspeaker Enclosures
Fuse: T4A 250V fuse for 100V and 120V versions
T2A 250V fuse for 230V and 240V versions
Footswitch: 2 Button Footswitch p/n 053584
(Controls Channel & Effects Loop Select)
Dimensions: Height: 10.2" (25.9 cm)
Width: 24.5" (62.2 cm )
Depth: 11.6" (29.5 cm)
Weight: 45 lbs. (20.4 k g)
Product specifications are subject to change without notice
PARTS LIST
NOTE: SHADED ITEMS ARE FOR REFERENCE ONLY
MAIN
PRINTED CIRCUIT BOARD ASSEMBLY
QTY PART # DESCRIPTION REFERENCE DESIGNATION
2 051660 BRACKET R/A PC MT #6-32 BK1 BK2
1 038690 CAP AE AX 1.0uF 100V C17
2 028953 CAP AE AX 100uF 350V +50% -10% C47 C48
2 038692 CAP AE AX 10uF 35V C35 C38
3 024819 CAP AE AX 22uF 500V C49 C52 C53
1 038693 CAP AE AX 47uF 16V C1
2 024820 CAP AE AX 47uF 350V C50 C51
2 041589 CAP AE AX 47uF 500V C54 C55
2 028494 CAP AE RDL 1000uF 35V 20% C60 C61
2 031040 CAP AE RDL 100uF 100V 20% C56 C57
2 028482 CAP AE RDL 220uF 50V 20% C58 C59
2 036954 CAP AE RDL 22uF 63V 20% C62 C63
3 051458 CAP CD 470pF 500V 10% C3 C8 C18
1 011435 CAP CD 680pF 1000V 10% C16
2 025951 CAP CD 750pF 1000V 10% C13 C15
1 025995 CAP CD 8200pF 1KV 20% C46
5 027272 CAP MPF .047uF 63V C21 C33 C37 C32 C36
1 027280 CAP MPF .15uF 63V C34
1 027286 CAP MPF .47uF 63V C31
1 024823 CAP MPF RDL .01mF 400V 10% C22
6 024833 CAP MPF RDL .022uF 400V 10% C9 C10 C12 C19 C20 C40
4 024845 CAP MPF RDL .047uF 400V 10% C2 C14 C24 C23
2 024846 CAP MPF RDL .047uF 630V 10% C44 C45
2 024853 CAP MPF RDL .1uF 250V 10% C42 C43
1 037666 CAP PPF .001uF 400V 10% C5
1 026202 CAP PPF .0022uF 600V C4
2 025962 CAP PPF .0047uF 400V C6 C41
2 033477 CAP RF 63V .68uF 10% C7 C11
2 041507 CONTROL SNAPIN 1M 10A R6 R15
2 047540 CONTROL SNAPIN 250K 15A R37 R18
3 037597 CONTROL SNAPIN 250K 30A R14 R36 R40
1 047031 CONTROL SNAPIN 25K 30C TAPER R110
2 041510 CONTROL SNAPIN 25K B R16 R38
2 026133 CONTROL TRIM 25K LIN R141 R139
2
PARTS LIST
MAIN
PRINTED CIRCUIT BOARD ASSEMBLY (CONT)
QTY PART # DESCRIPTION REFERENCE DESIGNATION
17 026730 DIODE 1N4006/1N5062 800PRV 1A LL CR35 CR37 CR36 CR38 CR41 CR44 CR42 CR43
CR39 CR47 CR49 CR50 CR48 CR40 CR28 CR29
CR57
15 006260 DIODE 1N4448/1N914B SIGNAL LL CR1 CR9 CR13 CR12 CR25 CR15 CR18 CR16
CR17 CR19 CR21 CR22 CR24 CR11 CR23
2 029690 DIODE HV 3KV 200mA LL CR33 CR34
4 031017 DIODE ZEN 1N5223B 2.7V 5% LL CR56 CR55 CR54 CR53
2 031019 DIODE ZEN 1N5245B 15V .5W 5% LL CR2 CR3
2 028119 DIODE ZEN 1N5353B 16V 5W 5% LL CR51 CR52
2 041811 DIODE ZEN 1N5368B 47V 5W 5% LL CR45 CR46
7 041296 EYELET G.S. 4-4 P2A P3A P4A P5A P13A P14A P35
23 025802 FSTN TAB MALE .250x.032 PCB MT CP26 CP2 CP1 CP3 CP4 CP5 CP6 CP7 CP8
CP10 CP9 CP21 CP19 CP20 CP15 CP16 CP25
CP24 CP17 CP18 CP23 CP13 CP14
3 026000 FSTN TAB MALE PCB MT .187x.032 CP11 CP12 CP22
1 027416 HDR .1 CTR 8 CKT SQ PIN P15
2 031611 IC DUAL OPAMP PC4560 U1 U2
1 037117 JACK PCB MONO CLOSED CIRCUIT J1
3 026481 JACK TIP J11 J12 J10
2 033177 LED RED/GREEN 5x5mm BI-COLOR LD3 LD2
2 036178 SPACER LED .5x.1 BRN @ LD3 LD3
1 025926 LED RED PC MOUNT 3mm LD1
1 051431 PCB FAB MAIN MODEL T
2 036613 RELAY DPDT DIP 24 VOLT 8.3mA K2 K1
7 025116 RES CF 1/2W 5% 100K LL R10 R3 R21 R31 R34 R12 R112
1 025113 RES CF 1/2W 5% 10K LL R104
4 027871 RES CF 1/2W 5% 1K LL R154 R153 R148 R147
1 025117 RES CF 1/2W 5% 220K LL R127
2 026368 RES CF 1/2W 5% 100 ohm LL R133 R134
1 036957 RES CF 1/2W 5% 470K LL R26
1 031065 RES CF 1/2W 5% 91K LL R111
1 041277 RES CF 2W 5% 820 ohm R83
3 024969 RES CF 1/4W 5% 1.5K LL R4 R22 R46
PARTS LIST
MAIN
PRINTED CIRCUIT BOARD ASSEMBLY (CONT)
QTY PART # DESCRIPTION REFERENCE DESIGNATION
1 024937 RES CF 1/4W 5% 10 ohm LL R81
5 024997 RES CF 1/4W 5% 100K LL R90 R96 R97 R113 R114
15 024981 RES CF 1/4W 5% 10K LL R25 R9 R20 R30 R44 R84 R85 R82 R98 R91 R92
R93 R33 R152 R146
1 028955 RES CF 1/4W 5% 130K LL R138
1 024999 RES CF 1/4W 5% 150K LL R107
2 024986 RES CF 1/4W 5% 18K LL R27 R137
1 024965 RES CF 1/4W 5% 1K LL R100
11 025069 RES CF 1/4W 5% 1M LL R1 R43 R86 R87 R101 R99 R5 R19 R41 R103
R106
4 025059 RES CF 1/4W 5% 220K LL R17 R24 R29 R39
4 024987 RES CF 1/4W 5% 22K LL R42 R157 R151 R145
1 024959 RES CF 1/4W 5% 330 ohm LL R89
1 024989 RES CF 1/4W 5% 33K LL R35
1 024961 RES CF 1/4W 5% 470 ohm LL R105
1 024977 RES CF 1/4W 5% 4.7K LL R109
5 025065 RES CF 1/4W 5% 470K LL R7 R8 R23 R28 R95
3 024993 RES CF 1/4W 5% 47K LL R45 R47 R108
1 028948 RES CF 1/4W 5% 6.2K LL R94
1 024963 RES CF 1/4W 5% 680 ohm LL R102
2 024995 RES CF 1/4W 5% 68K LL R13 R2
2 024964 RES CF 1/4W 5% 820 ohm LL R11 R32
2 029613 RES CF 1/4W 5% 91K LL R140 R142
8 027354 RES FILM 1W 5% 220K LL R125 R126 R156 R155 R150 R149 R144 R143
1 029870 RES FILM 2W 5% 1.5K LL R128
1 036921 RES FILM 2W 5% 1K R129
2 033095 RES MOX FP 1W 5% 1 ohm LL R117 R118
2 036470 RES MOX FP 1W 5% 10K LL R131 R132
1 041740 RES MOX FP 2W 5% 4.7K R130
4 041256 RES WW BT 5W 10% 470 ohm R119 R120 R123 R124
2 029047 RES WW BT 7W 10% 270 ohm R135 R136
4 051442 SOCKET, TUBE 9PIN PCB MOUNT V2 V1 V3 V4
1 028091 SWITCH PUSH SLFLK SHORT STROKE S1
1 028104 BUTTON PUSH BLACK @ S1
1 049976 SWITCH TOGGLE DPST DC W/NUTS S6
1 028503 THERMISTOR 10 ohm 5A C60-11 TH1
3
PARTS LIST
MAIN
PRINTED CIRCUIT BOARD ASSEMBLY (CONT)
QTY PART # DESCRIPTION REFERENCE DESIGNATION
1 041465 XSTR N-CH JFET J113 TO-92 Q1
5 016739 XSTR NPN 2N4401 TO-92 Q8 Q7 Q6 Q4 Q5
EFFECTS PCB ASSEMBLY
1 053963 PCB FAB FX MODEL T
1 048914 CABLE RIBBON 8 CKT 7 in @P15
1 038690 CAP AE AX 1.0uF 100V C30
1 009512 CAP AE AX 22uF 25V 20% C28
1 027286 CAP MPF .47uF 63V C39
1 024823 CAP MPF RDL .01uF 400V 10% C25
1 024845 CAP MPF RDL .047uF 400V 10% C29
1 024853 CAP MPF RDL .1uF 250V 10% C27
1 024876 CAP MPF RDL .68uF 250V 10% C26
4 047540 CONTROL SNAPIN 250k 15A R49 R51 R63 R65
5 006260 DIODE 1N4448 SIGNAL LL CR5-6 CR10 CR20 CR26
1 031635 DIODE ZEN 1N5240B 10V 5% LL CR4
2 031019 DIODE ZEN 1N5245B 15V 5% LL CR7-8
4 037036 JACK PHONE PCB MONO CA PREMIUM J2 J4 J5-6
1 031570 JACK PHONE PCB STEREO PREMIUM J3
2 036613 RELAY DPDT DIP 24 VOLT 8.3mA K3-4
2 025116 RES CF 1/2W 5% 100k LL R57 R69
2 024969 RES CF 1/4W 5% 1.5k LL R56 R70
4 024937 RES CF 1/4W 5% 10 ohm LL R61 R74 R79 R80
1 024997 RES CF 1/4W 5% 100k LL R62
2 024981 RES CF 1/4W 5% 10k LL R55 R68
2 024965 RES CF 1/4W 5% 1k LL R60 R75
7 025069 RES CF 1/4W 5% 1M LL R53-54 R67 R71-73 R77
2 025059 RES CF 1/4W 5% 220k LL R58-59
1 024987 RES CF 1/4W 5% 22k LL R78
1 024989 RES CF 1/4W 5% 33k LL R48
1 028948 RES CF 1/4W 5% 6.2k LL R76
4 024980 RES CF 1/4W 5% 8.2k LL R50 R52 R64 R66
PARTS LIST
EFFECTS PCB ASSEMBLY (CONT)
QTY PART # DESCRIPTION REFERENCE DESIGNATION
1 028091 SWITCH PUSH SLFLK SHORT STROKE S2
1 048451 BUTTON PUSH OFF WHITE @S2
1 041465 XSTR N-CH JFET J113 TO-92 Q3
1 016739 XSTR NPN 2N4401 TO-92 Q2
CHASSIS ASSEMBLY
1 051432 PCB ASSY MAIN PCB SUNN MODEL T
1 053964 PCB ASSY FX LOOP SUNN MODEL T
2 028069 BUSHING SNAP 3/4x1-1/8 WHT @ PWR XFMR
1 018022 BUSHING SNAP 5/16x17/32 BLK @ CHOKE
2 012560 BUSHING SNAP 5/8x27/32 BLK @ OUTPUT XFMR
1 051425 CHASSIS SUNN MODEL T
1 036486 CHOKE CHOKE L1
1 032219 COLLAR-PILOT LIGHT @ PILOT LIGHT
1 047213 CONN. AC LINE MALE IEC IEC PWR JACK
1 053892 COVER BOX BIAS CONTROLS
4 026730 DIODE 1N4006 800V LL @ V7 V8 V9 V10
1 051439 FRONT PANEL SUNN MODEL T
036702 FUSE HOLDER 3AG FINGER GRIP @ LINE FUSE F1
013737 FUSE TD 1-1/4x1/4" 250V 4A LINE FUSE F1 (120V/100V UNITS)
013115 FUSE TD 20mm x 5mm 250V 2A LINE FUSE F1 (230V/240V UNITS)
036703 FUSE HOLDER 5mm FINGER GRIP @ V7-V10 PROTECT, @ F1 (230V/240V).
013004 FUSE 100mA TIME 5mm V7-V10 PROTECT F2 F3
14 024604 KNOB BLACK W/WHITE STAMP 1-10 @ ALL CONTROLS
1 021741 HOLDER DIAL LITE ASSY PILOT @ PILOT LIGHT
1 026471 JACK XLR MALE PANEL MOUNT XLR LINE OUT
1 021550 JACK PHONE TIP SHUNT 12A MAIN SPKR JACK J8
1 021956 JACK PHONE OPEN CKT 11 EXT. SPKR JACK J9
1 025718 JEWEL PILOT LITE RED #20 @ PILOT LIGHT
1 031625 NUT 1/16-27 HOLDER PILOT LIGHT @ PILOT LIGHT
4 028272 NUT KEP 1/4x20 FOJ @ PW R XFMR
4 022004 NUT KEPS #8-32 ZINC @ OUTPUT XFMR
4
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