Sanyo RD 4080 User manual

SANYO
CASSETTE TAPE DECK
RD4080
RD4080 UM
RD 4080 Australia
SERVICE MANUAL

ADJUSTMENT OF PINCH ROLLER
Tape:
Recordingsystem:
,Erasingsystem:
Tape speed:
Rewind
81 Fast
forwardtime:
Wow
81 Flutter
Bias frequency:
Distortion
Frequency response:
Signal tonoise ratio:
Terminal impedance:
(Input)
(Output)
Power source
Dimensions:
Weight:
Chromiumdioxide or normal cassettetape
AC bias, 114 track stereo
AC erase, 112track
1-718 ips. (4.75 cmlsec.)
90sec. (C-60)
0.15% RMS
67
- 73 KHz
Less than 1% (1 KHz, -60dB)
30 - 13,000Hr (Normaltape)
30
- 16,000Hz (Chromiumdioxide tape)
Dolby N.R. OFF: 50dB
ON
: 58dB
MIC: 10Kohms (0.25mV)
LlNE IN: 60K ohms (63mV)
RECIPB: 10Kohms (1mV)
LlNEOUT: 5K ohms (500mV)
RECIPB: 5K ohms (500mV)
HEADPHONE: 8 - 10Kohm
AC: 120120012201240V 50160Hz (RD4080)
11011251220V 50160Hr (RD4080UM)
240V 50160Hz (RD4080AUST.).
15-114"(W) x 10"(D) x 4-318"(H)
(386x256x lllmm)
Approx. 8 Ibs. 2 02s. (3.7Kg)
1. Set the unit to the PLAY mode.
2. Apply a tension gauge to the pinch roller. Read the gauge at the
precise moment when the pinch rolier separates from the capstan.
3. If the gauge reading iswithin a range of more than 200 g, noadjust-
ment is necessary. If otherwise, make adjustment by changing the
force of the spring coil. (Seeexploded view No. 23)
TORQUE ADJUSTMENT
1. Set the unit to the PLAY, FAST FORWARDor REWIND mode.
2. Measure the each torque with a torque gauge. They should be as
following;
PLAY 30
- 60glcm
FAST FORWARD 55
- 110glcm
REWIND 55
- 110glcm
3. If the each torque fails to reach the standard value. Clean the drive
belt, flywheel, motor pulley, take-up reel, idler and rewind roller
with acotton swab soaked in alcohol.
AUTO SHUT-OFF ADJUSTMENT
1. Set the unitto the PLAY mode.
2. Apply a tension gauge to the sensor. Push the gauge and measure
the sensor pressure.
3. The sensor pressureshould be 30
- 50g.
4. If a sensor pressure of more than 50 g, or less than 30
g, adjust the
spring coil (Seeexploded view No. 25).
PARTS LOCATION
D302
+
Q103 Q105 Q106
1 0 -
0803
00
D802 t )~801 Q202 Q102
+
SVR201
0 0
EB Q201 Ql01
SVRlOl (2206
B 0 0
0
Q205
a
SVR203
0
@ D806
SVR103
SVR202 -0 Q203 SVR8010
4z Q104
a
Q204
0 0
SVRlO2 SVRBO2
0
RECORD - PLAY

No. Using Test Input Input Input Tape
SW
Dolby
SW
DIN. Mic RECIPB Adjust-
test tape point terminals frequency level position position line Volume ment Remarks
VTT-658 Adjust azimuth screw to obtain
1 Headazimuth 10kHz
-
-
-
Normal OFF
-
OUT
Azimuth
maximum 10kHzoutput for
-1 5dB screw both L and Rchannels.
1
Adjust SVR101
&
SVR201
&
I
MTT-150
1
obtain output of 580mV
2 Output level Dolby
-
Normal OFF
I
-
I
Max.
OUT
SVR1O1
k0.5dB at LlNEOUT.
tape
SVR201
(Playbackvolume to max.
position.)
Meter reading should
MTT-150 LINE
SVR
02
be +2VU point after
3 Meter Dolby OUT
- -
Max.
SVR202
adjustingSVR 102
&
meter S'JR202 toobtain
'
6
Bias
(Provisional)
Bias
(
RecIPlay
frequency
response)
Output level
Tesi
tape Test
tape
Test
Both
terminals
of R101,
R201.
(10ohm)
LINE
OUT
LINE IN
LINE IN Normal
-
tape
1
LINE IN
-
LINEIN
LINEIN)
Normal
1kHz -20dB OFF
-
-4OdBINormal
correspondsto recording rnoni-
tor output.
Max.
OFF
'
SVR103 SVR203
Max. SVR801
&
SVR802 toobtain
output of 10kHz+2to +3dB,
when frequency response is:
1kHz
=
0 dB.
Take note of recording monitor output and adjust SVR103
&
SVR203 until RECIPLAY output
SVR801 SVR802
output of 580mV.
Identify head base color marks
and adjust as follows (Leftside
for L channel and right side for
Rchannel): purple
-
4mV,
green
-
4.5mV, black
-
5mV.
red
-
5.5mV. blue
-
6.5mV.
brown
-
7mV.
Marking
point
L-ch
R-ch
Recordand play back at bias level
adjusted as above. Re-adjust

PARTS LIST
NO. Description
Key
No.
Part
NO.
Q'ty Part No. Description
PACK1 NG
Q'ty
141-6-132T-63101
141-6-132T-63100
141-6-132T-63102
141
-6-144T-26800
141-6-144T-26900
141-641IT-73600
123-6453R-00100
141-6479T-08300
141-6472T-05603
141-6472T-05604
141-6415T-11300
CHASSIS
141-2-224T-04200
141-2-851T-84300
141-2-161T-17600
141-2-161T-28400
141-2-852T-30001
141-2-751T-83900
141-2-741T-71500
141
-2462T-29000
141-2-852T-31100
141-2422T-04300
141-2472T-01000
123-2472R-00600
123-2472R-00400
141-2-741T-77200
141-2-751T-83400
Individualcarton (RD4080)
Individual carton (RD4080UM)
Individual carton (RD4080Aust.)
Styrol filler
Styrol filler
Instruction booklet
Inspectionsheet
Label, DOLBY patent
Caution label, Voltage select
(RD4080 & Aust.)
Caution label, Voltage select
(RD4080UM)
Polyethylenebag450 x 600mm. Set
Polyethylenebag 100 x 200mm.
Patch cord
Polyethylenebag 100 x 300mm.
Power cord
Polyethylenebag 100 x 200mm. Socket
Polyethylenebag 200 x 300mm.
Inst. book
Notice, Swedish (RD4080UMonly)
1
1
1
1
1
1
2
1
1
1
1
1
1
1
1
1
Bracket, Deck panel mtg.
Coil spring, Lever returning
Push button, Powerswitch (RD4080
& Aust.)
Push button, Power switch
(RD4080UM)
Wire spring, REC select
Shaft, REC
Lever, Safety recording
Boss, Lever mtg.
Wire spring, REC shah mtg.
Lug, Head lead retainer
Lug, Lead retainer
Lug, Lead retainer
Lug, Lead retainer
Lever, REC
Shaft, REC shaft (T-839)mtg.
Adhesivecushion 10 x 10 x 160mm.
Panel
ACCESSORIES
1
1
1
1
1
1
1
1
1
1
3
1
1
1
1
1
ELECTRICALPARTS
2
1
1
1
4-243T-11800
4-241T-08300
4-235R-11801
4-235R-11802
Power transformer 12012001240V
(RD4080)
Powertransformer 11011251220V
(RD4080UM)
Power transformer 240V (RD4080
Aust.)
Meter
Variable resistor 50KD
Lug
Switch, AC (RD4080 & Aust.)
Switch, AC (RD4080UM)
Switch, LINEIDINIMIC
Switch, Voltage select (RD4080
only)
Switch, Voltage select (RD4080
UMonly)
Power supply cord (RD4080)
Power supply cord (RD4080UM)
Power supply cord (RD4080Aust.1
Terminal clip, AC cord (RD4080
only)
CR pack (RD4080 only)
Fuse holder (RD4080UMonly)
Fuse 200mA. Amp (RD4080UM
only)
Fuse 31
5mA, Meter & Motor
(RD4080UMonly)
Terminal bourd (RD4080UMonly)
AMP PCB ASSY
Printed circuit boardassembly,
AMP
Variable resistor lOKB
Variable resistor 50KB
Variablre resistor lOOKB
High frequency choke coil
4.7mH
Low frequency choke coil lOmH
High frequency choke coil
lOOpH
Socket, MIC
Socket, 5P DIN
Socket, Headphone
Socket, RCA
Switch, RIP
Terminal,Wire wrap pin
Transistor2SC1571 or
2SC1327
Transistor2SC945
Transistor 2SC536
Transistor 2SC536
Rectifier IN4001
Diode DS442
VRlO1,
201
Lead, RCA
- RCAcord
Cassette tape, DOLBY recording
Socket, Siemense 2 pin type
(RD4080only)
Socket, England 2 pin type
(RD4080only)
1
1
1
2
2
1
1
1
1
1
1
1
1
1
2
1
1
1
2
1
1
4
2
2
2
2
1
2
1
1
4
2
31
4
4
2
2
3
2
4-251
T47800
4-251T-47900
4-251
T48700
4-51IT-07300
4-222T-12471
1
23-2-472R-00300
4-231T-51900
4-231T-53700
4-231T-52900
4-231T-37603
4-231T-53600
4-243R-00100
4-243R-77171
4-243T-76600
141-2-382T-02000
4-227T-01000
141-2-383T-02001
4-234T-04000
4-234T-01100
4-237T-06900
CAB l N ET
Deck panel assembly
Cassette comp. lid assembly
Headcover assembly
Bottom lid assembly (RD4080)
Bottomlidassembly (RD4080UM)
Bottom lidassembly (RD4080Aust.)
Slide knob assembly
Shah, Top lidfulcrum
Coil spring, Top lid opener
Inlay, Mechanismbutton
1
1
1
1
1
1
2
1
1
7
SVR101.103
201,203
SVR 102,202
SVR801,802
L101.201
L102.202
LEO1
0101,102
201,202
0103,203
105,205
0104,204
Q105.205
D801,802,
807
0803,806
4-226T-815911
4-222T-39375
4-222T-39577
4-222T41078
4-253T-01019
4-252T-05200
4-253R-10100
4-235T-23200
4-235T-23100
4-235T-23000
4-235T-23700
4-231T45672
4-237T-00100
1
1
1
1
1
1
2
1
1
1
1
1
1
1
2
1
1
2
1
1
2
1
1
1
1
1
CHASSIS
141-2-365T-30601
141-2-322T-26700
141-2-367T-27301
141-2-322T-27800
141-2-1
35T40200
141-2-367T-27401
123-2472R-00400
141-2-322T-30600
141-2-373T-05800
141-2-31IT-21600
141-2-31IT-21601
141-2-363T-03400
141-2-143T-51400
141-2462T-37500
141-2-464T-11800
141-2-464T-14400
141-2411T-04800
141-2-322T-27600
141-2-445T-13500
141-6476T-05201
141-2-135T-42200
141-0-741T-16302
141-2-851T-28100
Bracket, VR switch mtg.
Shield plate, VR shield
Bracket, MIC headphone
Shield plate, AMP P.C.B.
Cover, Slide switch
Bracket, Voltage select
Sheet 15 x 90mm. Bracket switch
Lug, Shield plateearth
Shield plate, PT
Bracket, Meter mtg.
Chassis, P.C.B
& PT mtg. (RD4080)
Chassis, P.C.B. & PT mtg. (RD4080UM
& Aust.)
Bracket, CR pack (RD4080
& Aust.
only
Markingplate, Rearsocket
Boss, Powerswitch
Fixer, AC cord fixer (RD4080)
Fixer, AC cord fixer (RD4080UM
& Aust.)
Plate nut, PT fixer
Shieldplate, Powerswitch side
Fiberwasher 3.3 x 10 x 1mm,
AMP fixer
Rubber cushion, Meter mtg.
Indication label, Fuse (RD4080UM
& Aust. only)
Cover, conector (terminalboard)
(RD4080UMonly)
Lever assembly, EJECT
Coil spring, EJECT
Contraction tube 0.7 x 25rnm.
coil spring

EXPLODED VIEW PARTS LIST
Q'ty
part NO.
Q'ty
Part NO.
Description Description
SCREW MOUNTING
Pan head screw 2 x 4mm
Pan head screw 2 x 6mm
Pan head screw 2.6 x 4mm
Pan head screw 3 x 4mm
Pan headscrew 3 x lOmm
Pan headscrew 4 x 8mm
Tapping screw 2.3 x 6mm
TappingTapping screwscrew 33 x x 6mm8mm
Washer 3mm
Washer 4mm
Washer 2mm
I Washer 3.3 x 8 x 0.5mm
Washer 3.3 x 13 x lmm
I External tooth lock washer 3mm
External "E" ring 2mm
External "E" ring4mm
Pan headscrew withwasher 3 x 4mm
Pan headscrew withwasher 3 x 8mm
Pan head screw withspringwasher
3 x 6mm
Pan head screw withspring washer
3 x 8mm
Tapping screw with washer 3 x 6mm
Tapping screw with washer 3 x 1Omm
Thread rolling screw 3 x 8mm
1
4
1
2
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
2
1
1
1
1
3
3
1
1
1
1
1
2
1
1
1
1
3
4
4
6
1
5
3
2
6
1
1
2
1
1
6
1
3
2
2
2
7
2
Flame assembly, Push button mtg.
Lever, Push button
Lever, Eject button
Coil spring, Push buttonreturning
Coil spring, Stop buttonreturning
Lever, REC button
Shaft, Push button
Slide assembly, PAUSE
BOSS
Cam, Lock lever
Coil spring, Lever returning
Lever, PAUSE
Coil spring, Eject returning
Coil spring, Pause-returning
Slide, F.FWD button
Plate spring, Head slide pressure
Specialwasher, Headslide pressure
Specialwasher, Spacer
Special washer, Counterrelay
Brake platespring assembly
Mainslide
Coil spring, Mainslide returning
Counter
Squarepulleybelt,
S Reel plateto Relay
Square belt, Relay pulley toCounter L
Pulley, Counter relay
Power supply switch
Muting switch
Special washer
Lever, Unti miss recording
Coil spring, Lever (82) mtg.
DC motor
Special screw, Motor mtg.
Rubber cushion, Motor mtg.
Lever, STOP button
Lug, Bracket (90) Counter mtg.
Motor pulley assembly
Bracket, Counter mtg.
Bracket, Lock slide
Coil spring. Slide (37.45) returning
Chassis mounting, Right
Chassis mounting assembly, Left
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
93
96
97
98
MECHANISM
141-0-613T-00100
141-2-611T-08600
141-2-61
IT-08601
141-2-851T-71300
141-2-851T-71400
141-2-611T-08602
141-2-612T-03300
141-0-652T-00101
141-2462T-24600
141-2-671T-04100
,
141-2-851T-72300
141-2-651T-01300
141-2-851T-71500
141-2-851T-71600
141-2-731T-26600
141-2-853T-38700
141-2457T-04100
141-2457T-08100
141-2457T-04100
141-0-713T-00100
141-2-731T-26901
141-2-851T-73500
141-2-811T-04500
141-2-564T-13300
141-2-564T-15200
141-2-661T-16601
4-231T-42600
4-231T-43000
141-2457T-04100
141-2-741T-60800
141-2-851T-56100
4-527T-09300
141-2-421T-16000
141-2445T-11801
141-2-61IT-08603
141-2472T-01000
141-0-661T-69991
141-2-812T-05400
141-2-747T-07800
141-2-851T-92900
141-2-316T-08300
141-0-316T-00100
MECHANISM SCREW
MECHANISM
1
2
3
4
1
2
1
1
7
1
2
4
2
1
3
1
5
3
2
1
1
4
3
1
1
1
1
3
1
1
1
1
1
Y 1
Y 4
Y 5
Y 6
Y 7
Y 8
Y 9
Y10
Y12
Y13
Y14
Y15
Y16
Y17
Y18
Y19
Y20
Y21
Y22
Y23
Y24
Y25
Y26
Y27
Y28
Y29
Y30
Y31
Y33
Y34
Y35
Y37
Y38
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
Pan head screw 2 x 2mm
Pan headscrew 2 x 8mm
Pan head screw 2 x 15mm
Pan head screw 2.6 x 4mm
Pan head screw 2.6 x 5mm
Pan head screw 3 x 4mm
Pan head screw 3 x 5mm
Pan head screw 3 x 6mm
Tappingscrew 3 x 6mm
Tapping screw 3 x 18mm
Washer 3 x 8 x 0.5mm
Spring washer 217-1177
Spring washer 3mm
Internal tooth lock washer 2.6mm
External "E" ring 1.5mm
External "E" ring 1.9mm
External "E" ring 2.3mm
External "E" ring3.2mm
External "E" ring 4mm
External "E" ring6mm
Graphite nylonwasher 1.5 x 5 x 0.5mm
Graphite nylon washer 2 x 4 x 0.25mm
Graphite nylonwasher 2 x 4 x 0.5mm
Graphite nylonwasher 2.6 x 5 x 0.5mm
Graphite nylonwasher 3 x 4.5 x 0.5mm
Graphite nylon washer 3.6 x 6 x 0.5mm
Graphite nylonwasher 4.2 x 6 x 0.13mm
Graphite nylonwasher 5.1 x 8 x 0.25mm
Graphite nylonwasher 3.1 x 6 x 0.5mm
Graphite nylonwasher 4.1 x 8 x 0.3mm
Nylon washer 2.4 x 6 x 0.5mm
Tapping screw with washer 3 x 6mm
Pan headscrew 3 x 8mm
Chassis
Platespring, Cassette pressure
Lug
Bracket, Power supply switch mtg.
Bracket, Mutingswitch mtg.
Bracket assembly, Flywheel mtg.
Flywheel assembly
Plate nut, Bracketmtg.
Bracket assembly, Flywheel
Square belt, Flywheeldrive
RIPhead
Pipe, RIP head mtg.
Coil spring
Ehead
Pipe, Ehead mtg.
Lug, Eheadearth mtg.
Slide assembly, Head slide
Platespring, Slide (17) pressure
Coil spring, Slide (17) returning
Stell ball 2mm, Head slide Platespring
Tape guide
Pinch roll'er lever assembly
Coil spring, Pinch roller pressure
Lever shut off assembly, Auto stop
Coil spring, Auto stop
Lever, Kick lever
Coil spring, Kick lever
Reel plate assembly,Supply reel
Reel plate assembly, Take up reel
.- - - - -- -
141-0-311T-01903
141-2-853T-33300
123-2-472R-00600
141-2-365T-22600
141-2-365T-26100
141-0-524T-06191
141-0-521T-05100
141-2-411T-02601
141-0-573T-01000
141-2-564T-14700
4-242T-18500
141-2461T-19300
141-2-851T-54500
4-242T-13600
141-2461T-19200
141-2-472T-02200
141-0-731T-06300
141-2-853T-27800
141-2-851T-71800
141-2-821T-09500
141-0-545T-01000
141-2-851T-71700
141-0-721T-00900
141-2-851T-91000
141-2-741T-60700
141-2-851T-72200
141-0-531T-02300
141-0-531T-02400
1
1
1
1
1
1
1
1
1
1
1
1
1
1
2
2
1
1
1
6
1
1
1
1
1
1
1
1
1
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
Slide assembly, Play idler mtg.
Play idler
Coil spring, Pulley pressure
Idler assembly, REW & FWD roller
Lever assembly, FWD lever
Idler, REW roller
Lever, REW operation
Slide, F.FWD operation
Specialwasher, Spacer
Specialwasher, Spacer
Coil spring, F.FWD operation
Coil spring, Idler (33) returning
Coil spring, Idler (33) returning
Special screw, REW lever (34)fulcrum
Slide, STOP button
Slide, PLAY button
Coil spring, Slide (45) returning
Slide, REW button
Slide cam, Slide mtg.
Lever, Lock slide
Fix reel plate, Reel cap
Slide. REC button
Coil spring, Lock slide returning
141-0-731T-06000
141-2-551T-02100
141-2-851T-73700
141-0-551T-00800
141-0-741T-09800
141-2-551T-02000
141-2-741T-60500
141-2-731T-26801
141-2-457T-07800
141-2457T-07900
141-2-851T-72000
141-2-851T-73300
141-2-851T-73900
141-2-421T-13500
141-2-731T-27000
141-2-731T-26400
141-2-851T-73800
141-2-731T-26500
141-2-673T-03100
1
141-2-614T-04601
141-2-536T-01700
141-2-731T-27101
141-2-851T-73600
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
2
1
1

PARTS LlST PARTS LlST
Part No. Key
No.
1 Part No.
I No. I
Description Key
No. Description
Part No.
a'ty
I OSC PCB ASSY
Part No.
SWITCH PCB ASSY
2
2
4
2
2
2
3
1
1
1
1
1
1
2
2
2
2
2
2
2
2
2
1
2
2
2
2
2
2
1
2
2
1
6
2
4
2
2
4
7
1
4
5
2
2
6
5
2
2
2
2
2
C111,211
C108.208
C112.113
212,213
C103.203
C106.206
C110,210
C107.207
801
-02
C811
C803
C809
C810
C808
C116,216
C102,202
C115.215
C105.205
C117.217
C109.209
C114.214
C812,815
C118.218
C807
C104.204
-04,805
C101,201
R101.201
R120,220
R107.207
R804
R121.221
R138,238
R803
R110.129,
131,210,
229,231
R116.216
R115,215,
135,235
R137.237
R122.222
R123.125,
223,225
R102.124,
118,202,
224,140,
240
1
R810
R109.130,
209,230
R103.104
203,204
802
R106,206
R111,211
R128,228
R112,127,
132,212
227,232
R114.214
R119,139
219,239,
801
R117,217
R126,226
R108,208
R105,205
R113.213
-
-
Description
CAPACITORS
Electrolytic 0.33pF 16WV
Electrolytic 1pF 16WV
Electrolytic 1pF 25WV
Electrolytic 2.2pF 25WV
Electrolytic4.7pF 25WV
Electrolytic 22pF 16WV
Electrolytic 47pF 6.3WV
Electrolytic47pF 16WV
Electrolytic 1OOpF 10WV
Electrolytic 220pF lOWV
Electrolytic470pF 16WV
Electrolytic 470pF 25WV
Electrolytic 1OOOpF 25WV
Mylar 470pF +lo%50WV
Mylar 820pF 210%50WV
Mylar 0.001pF 220% 50WV
Mylar0.0068pF ~5%50WV
Mylar 0.0068pF *20% 50WV
Mylar 0.018pF *lo%50WV
Mylar 0.027pF +lo%50WV
Mylar 0.033pF *20% 50WV
Ceramic lOOpF +20%50WV
Ceramic l8OpF *lo%50WV
Ceramic 220pF *20% 50WV
Ceramic470pF 510%50WV
Ceramic 820pF 210%50WV
RESISTORS
Carbon 10ohm +lo%1/4W
Carbon 100ohm 210%1/4W
Carbon 150ohm +lo%1/4W
Carbon 220 ohm +lo%1/4W
Carbon 390 ohm +lo%1/4W
Carbon 560 ohm +lo%1/4W
Carbon 1K ohm +lo%1/4W
Carbon 1.2K ohm +lo%1/4W
Carbon 1.8K ohm +lo%1/4W
Carbon2.2K ohm +lo%1/4W
Carbon 3.3K ohm +lo%1/4W
Carbon 3.9K ohm 510% 1/4W
Carbon4.7K ohm +lo%1/4W
Carbon 5.6K ohm +lo%1/4W
Carbon 5.6K ohm +lo%1/4W
(RD4080UMonly)
Carbon6.8 K ohm +lo%1/4W
Carbon 1OK ohm +lo%1/4W
Carbon 12K ohm +lo%1/4W
Carbon15Kohm *10%1/4W
Carbon 18K ohm +lo%1/4W
Carbon 22K ohm *lo% 1/4W
Carbon 33K ohm *lo% 1/4W
Carbon 47K ohm 210%1/4W
CarbonlOOKohm +10%1/4W
Carbon 220K ohm +lo%1/4W
Carbon 330K ohm +lo%1/4W
Carbon 390K ohm +lo%1/4W
Carbon lMohm +lo% 1/4W
METER PCB ASSY
OSC coil
Plug 6P
Transistor 2SC1317
Transistor 2SC536
Mylar 0.0033pF 510% 50WV
Mylar 0.022pF
+20% 50WV
Electrolytic 4.7pF 25WV
Electrolytic 220pF 25WV
a'ty Description
R134,234
R136,236
C501,601
C502.504,
505,602,
604,605
C503,603
R504.506
604,606
R503,603
R507.607
R508.608
R501.601
R502,602
R505.605
1
4-226T-797911
a'ty
Printedcircuit boardassembly,
SWITCH
Switch assembly,
LIMITER
Switch assembly, TAPE SELECT
& DOLBY
Terminal, Wire wrap pin
Carbon Ptype 180K ohm 210%
1/4W
Carbon Ptype 1M ohm *lo%
1/4W
4-226T-816911
4-231T-500911
4-231T-476912
4-237T-00100
Printedcircuir bardassembly,
OSC
Carbon Ptype 18K ohm +lo%
I
1
1
2
13
2
2
-
Electrolytic 2.2pF 16WV
Electrolytic4.7pF 16WV
Electrolytic47pF 6.3WV
Carbon Ptype 1K ohm 210%
1/4W
Carbon Ptype 3.3K ohm +lo%
1/4W
Carbon Ptype 3.9K ohm +lo%
1/4W
CarbonPtype 4.7K ohm +lo%
1/4W
Carbon Ptype 8.2K ohm +lo%
1/4W
CarbonPtype 18K ohm *lo%
1/4W
Carbon Ptype47K ohm i10%
1/4W
CarbonPtype 8.2 ohm +lo%
1/4W
Solid type 8.2 ohm +lo%112W
Solid type 33 ohm +lo%1/2W
CarbonPtype 2.2K ohm +lo%
1/4W
DOLBY
L301.40 1
L302.402
D302,402
C303,309
403,409
C310.410
C305,405
C307,308,
312,407,
408.412
C302.402
C304,404
C301.401
C318.418
C317.417
C316.416
C311.411
C314.414
C313.413
C306.406
C315.415
R302.402
R308,408
R301,311,
401.41 1
R306.406
R307,407
R309,409
R305,405
R304.404
R303.403
--
LED PCB
2
6
2
4
2
2
2
2
2
2
2
1
1
1
PCB ASSY
DOLBY
4-252T-05600 Low frequency choke coil
36mH
4-252T-02800 Lowfrequency choke coil
23mH
4-236T-09600 Plug 6P
4-235T-32400
4-235T-32100 Or
206-5-995T-05452
Printed circuit board assem
LED
Luminous diode SLP24B
Carbon Ptype 1.8K ohm -t
1/4W
Spacer, LED
D804.805
R805.806
-
Socket, IC
I C NE545B
Diode 15188
CAPACITORS
Electrolytic 0.1pF 16WV
Electrolytic0.33pF 16WV
METER PCB ASSY
4-226T-85891 1 Printedcircuit board assembly,
METER
1 QEEi:gE; 1 4-236T-09600 1 Plug, 6P
1 1
Transistor 2SC536
D501,502, Diode IS188
503,601,
602,603
4-226T-822911
141-2-135T-11100
2
2
2
4
2
Electrolytic 1fiF 16WV
Electrolytic 10pF 16WV
Electrolytic47pF 16WV
Electrolytic4.7pF 16WV
Electrolytic 220pF 16WV
Mylar 0.0022pF +20%50WV
Mylar 0.0027pF +lo%50WV
Mylar 0.0039pF +20%50WV
Mylar 0.0047pF +5%50WV
Mylar 0.0056pF +5%50WV
Mylar 0.027pF +5%50WV
Mylar 0.047pF +5%50WV
Ceramic 150pF 210% 50WV
RESISTORS
Carbon 120ohm +lo%1/4W
Carbon 180ohm +lo%1/4W
Carbon 1K ohm +lo%1/4W
Carbon3.3K ohm ~5%1/4W
Carbon47K ohm t5% 1/4W
Carbon l00Kohm 510% 1/4W
Carbon 150K ohm 25% 1/4W
Carbon270K ohm +lo%1/4W
Carbon680K ohm +5% 1/4W
2
6
2
2
2
2
2
2
2
2
2
2
2
2
2
4
2
2
2
2
2
2
ASSY

MODIFICATION NOTICE
CASSETTE TAPE DECK
Chassis Nos.
Serial Nos.
RunNos.
Date
Date Jun. 20, 1977 Issued by
RD 4080 RD 4055
RD 4080 G
R D 4055 G
I3 D 4260 G
RD 4080 UM R D 4055 UM RD 4050
RD 4080 AUS RD
4450 CANADA
Thefollowing correctionsshould
be made in the SERVICE MANUALSand PARTS (PRICE) LIST.
Section Ref. Original Part No. New Part No. Description
No.
MECHANISM
28 141-0-531T-02300 141-0531T-02301 Reel plate Assy,
Supply real
MECHANISM
29 141-0531T-02400 141-0-531T-02401 Reel plate Assy,
Take up real
Reason
REASON FOR MODIFICATION
A ..... Standardization C ..... Improvement of reliability E ..... Miss print
B ..... Change of materials D ..... Improvement of performance
SANYO ELECTRIC TRADING CO., LTD.
OSAKA, JAPAN
Printed in Japan 4000
WM- 2492

Chassis Nos.
Serial Nos.
Run Nos.
Date
ate- Issued by
RD 4080 RD 4055
RD 4080
G RD 4055 G RD4260 G
RD 4080 UM RD 4055 UM RD 4050
RD 4080 AUS RD 4450 CANADA
Section Ref. Original Part No. New Part No. Description
No.
MECHANISM 28 141-0-531T-02300 141-0-531T-02301 Reel plate Assy,
Supply real
MECHANISM 29 141-0-531T-02400 141-0-531T-02401 Reel plate Assy,
Take
UP real
The following correctionsshould be made in the SERVICE MANUALS and PARTS (PRICE) LIST.
Reason
E
E
REASON FOR MODIFICATION
A
..... Standardization C ..... Improvement of reliability E ..... Miss print
B ..... Change of materials D
..... Improvement of performance
SANYO ELECTRIC TRADING CO., LTD.
OSAKA, JAPAN
Printed in Japan 4000
WM- 2492

MODIFICATION NOTICE
CASSETTE TAPE DECK
Chassis Nos.
Serial Nos.
RunNos.
Date
Date Jun. 20, 1977 Issued by
RD 4080 R D 4055
RD 4080 G R D 4055 G RD 4260 G
RD 4080 UM R D 4055 UM RD 4050
RD 4080 AUS RD
4450 CANADA
Thefollowing corrections should
be made in theSERVICE MANUALSand PARTS (PRICE) LIST.
Section Ref. Original Part No. New Part No. Description Reason
No.
MECHANISM
28 141-0-531T-02300 141-0-531T-02301 Reel plateAssy, E
Supply real
MECHANISM
29 141-0-531T-02400 141-0-531T-02401 Reel plate Assy, E
Take up real
-
REASON FOR MODIFICATION
A ..... Standardization C ..... Improvement of reliability E ..... Miss print
B ..... Change of materials D ..... Improvement of performance
SANYO ELECTRIC TRADING CO., LTD.
OSAKA, JAPAN
Printed in Japan 4000
WM- 2492