JVC KD-D30A, KD-D30B, KD-D30C, KD-D30E, KD-D30J SERVICE MANUAL

...
Page 1

No. 4209 April, 1982

Page 2

Contents

Page
Specifications 2
Features 2
Controls and Connections 3
Main Parts Location 3
Description on New Technology 4
Safety Precautions 5
Removal of the Main Parts 6
Dimensions 7
Main Adjustment 8
Block Diagram 10
Wiring Connections 11
Main Amp. P.W. Board Parts 12
Standard Schematic Diagram (Main Amplifier Circuit) 13
Done Standard Schematic Diagram (Mecha. Control Circuit) .................................... ICs 15 Power Supply P.W. Board Parts ..... 15 Power Supply P.W. Board Parts List 16 Main Amp. P.W. Board Parts List .................................... Other P.W. Board Parts, Parts List .................................... Mechanical Component Parts .................................... Enclosure Assembly and Electrical Parts .................................... Mechanical Component Parts List .................................... Enclosure Assembly and Electrical Parts List .................................... Packina. Packina Material Parts List .................................... Accessories ....................................

Specifications

Туре : Stereo cassette deck Input terminals
Track system : 4-track, 2-channel Mic jack x 2 · Max sensitivity: 0.2 mV
Tape speed : 1-7/8 inch/sec (4.8 cm/sec) (- 74 dBV)
Frequency response : (O dB recording)
Metal tape *1;
30-12,500 Hz (±3 dB) Input jack x 2
SA/Chrome tape *2: Input impedance: 100 k0
30-8,000 Hz (±3 dB) Output terminals input impedance, 100 km
SF/Normal tape *3; : Output loval: 200 mV
30-8,000 Hz (±3 dB)
(-20 dB recording) Phones jack × 1 : Output Impedance, 5 km
Metal tape *1; Matching impedance: 9 1 k0
20–16,000 Hz Power requirement
30-15,000 Hz (±30 dB) i ower requirement
SA/Chrome tape *2:
20-16,000 Hz 50/60 Hz (KD D2011)
30-15,000 Hz (± 3 dB) Power consumption : With power on 17 M
SF/Normal tape *3: With power on 17 W
20-15.000 Hz Dimensions • 17 1/9" (425 mm) W/
30-14.000 Hz (± 3 dB) Dimensions 19/16" (116 mm) H
Note: *1 IVC ME or Equivalent 10.13/16″ (275 mm) D
*2 TDK SA or Equivalent Weight
*3 MA) Accessories : Pin plug cord
S/N rotio Accessiones
S/IN TALIO : 58 UB (S = 1 KHZ, K3 = 3%, Design and specifica tions are subject to obspace without
N = A-weight, Metal tape) notice tions are subject to change without
1E dB at EQO He and by may
ADOVE 5 KHZ WITH ANRS/DULBY B Eastura
Improvement of MO reatures 5
improvement of MO
Wow and flutter • DOLBY * C NR sys item.
wow and nutter : 0.05% (WRIVIS),
0.16% (DIN 45 500)
  • Music Scan mecha
anism
Croostally "Under license of Staar S.A., Brussels Belgium''
Metal tape compatient tible.
harmonic distortion
  • 2-color LED peak I
evel indicator.
Hoodo IMER START facilities lity.
neaus ding (newback, 2 and for recor- Full auto-stop mec hanism.
for crocure I ape running indic ator.
Motor Flastrania neuronal DC mater
  • Geared and oil-dan
nped cassette door.
Fast fl muand time . Electronic governed DC motor Automatic input se elect.
cassette
  • REC MUTE (record
muting) mechanism.
Rewind time : Approx 100 sec. with C-60
cassette
* ''Dolby'' and the dou
Laboratories Licensi
uble-D symbol are trademark of Dolby
Page 3

Controls and Connections

Fig. 1

Fig. 2

  • 1. POWER switch
  • 2. MULTI PEAK INDICATOR
  • 3. Tape running indicator
  • 4. Cassette holder
  • 5. Tape COUNTER/counter RESET button
  • 6. NR SYSTEM switches [OFF, ANRS DOLBY C]
  • 7. Headphone jack [PHONES]
  • 8. Microphone jacks [MIC-L, MIC-R]
  • 9. TAPE SELECT switches [METAL, SA/CrO2, SF/NORM]
  • 10. REC LEVEL control (right)
  • 11. REC LEVEL control (left)

  • 12. Cassette operation buttons
    • O REC (Record) button
    • REW/REV (Rewind/Review) button
    • PLAY button
    • ►► FF/CUE (Fast forward/cue) button
    • STOP button
    • PAUSE button
  • 13. EJECT button
  • 14. REC MUTE button
  • 15. Power cord
  • 16. Voltage select switch
  • 17. LINE IN (REC) terminals
  • 18. LINE OUT (PLAY) terminals

Main Parts Location

  • 1. Power switch
  • 2. Pin jacks ass'y
  • 3. Recording switch
  • 4. Power transformer
  • 5. Remote bar for power transformer
  • 6. Microphone jacks
  • 7. Main P.W. board ass'y
  • 8. Tape select switches
  • 9. Motor
  • 10. Hall IC. P.W. board

Fig. 3

Page 4

Description of New Technology

Dolby C-type Noise Reduction System

- A newly developed IC is used to reduce noise and expand the MOL (maximum output level) dramatically. -

The Dolby C-type closely resembles the B-type in operation, the system compatible with ANRS, yet offers even better performance and more distinctive features. Namely: • Noise reduction is greater -20 dB from 1 kHz to

  • 10 kHz and as much as 15 dB at 500 Hz.
  • At 10 kHz it improves MOL by 4 dB when recorded at 0 VU.
  • It is immune to undesirable side effects such as modulation noise and breathing.

Dolby C noise reduction solves the problem of achieving a large amount of compression and expansion without introducing undesirable side effects by the use of two processing stages in series, each supplying 10 dB of compression during recording and of expansion during playback. These circuits operate at independent levels. One, identified as the high-level stage in Figure B, is sensitive to signals at about the same levels as Dolby B-type noise reduction, while the other, the low-level stage, operates on signals of somewhat lower level. Because the two stages operate in tandem with each other, their effect is to multiply the signals (or add and subtract in dB's), so that a total of 20 dB of compression and expansion, and thus of noise reduction is accomplished. Yet simultaneously, at no time is the signal subject to the vagaries of a single compression. or expansion action of 20 dB. In other words, the tandem two-level, two-stage configuration provides a much more accurate control of the signal than a single compander circuit would be able to achieve.

Since a single newly developed IC is used for Dolby C noise reduction in this unit, compared with the Dolby B ICs two normally used, better characteristics are achieved.

  • 1. Recording/playback mode and NR mode (OFF/Dolby B/ Dolby C) selection is electronic.
  • 2. The circuit does not need adjustment.
  • 3. The over-shoot and limiter level specified for Dolby B and C are adopted to give better transient characteristics.

  • 4. Phase distortion is improved by use of a full-wave rectifying circuit.
  • Almost totally integrated with few external components.
  • With all signal processing performed in a single chip, characteristics in recording and playback are indentical.
  • 7. Since the same elements are used for spectral skewing and in the anti-saturation network in both recording and playback, the characteristics are the same.
  • 8. Multiplex buffer amplifier built-in.
  • External semi-fixed resistor allows setting of monitor output level to required level.
  • Since the performance of the unit is not affected by the side chain when noise reduction is switched off, distortion and frequency response do not deteriorate.
  • 11. It can be used as two Dolby B noise reduction circuits.
Other developments

In addition to two-level processing, Dolby C-type noise reduction incorporates a number of further innovations. Two of these, shown in Figure B as anti-saturation and spectral skewing networks, are carefully calculated frequency response modifications introduced in the encoding (record) process and reciprocally compensated for in the decode (playback) process. Their purpose is two-fold: to further guard against audible side effects, and to ensure the practicality of the system in day-to-day consumer use. The specific benefits of these innovations include the reduction of encode-decorde errors and a reduction of upper-middle and high frequency tape saturation and its side effects, such as high frequency losses and intermodulation distortion. Together with the two-level twostage configuration, these new developments result in a 20 dB noise reduction system at least as free of side effects as the 10 dB B-type system, and one which is just as practical in day-to-day use.

Fig. 4-A Low-level encoding frequency response

Page 5

These curves, showing the maximum low-level boost imparted by both C-type and B-type noise reduction in the absence of high frequency signals, illustrate some of the similarities and differences between the two systems. Dolby C noise reduction imparts more boost in recording and more cut in playback, thus providing more noise reduc-

tion. The effect also extends about two octaves lower with C-type noise reduction to maintain subjectively uniform noise level across the spectrum. Processing at very low frequencies is not required with either system because low frequency noise is insignificant in properly engineered cassette recorders.

Fig. 4-B Dolby C-type NR block diagram

Safety Precautions

▲Safety mark

Safety is very important with this unit. When replacing the parts marked A, be sure to use only those designated parts. The designated resistors, diodes, transistors become hot in use. When replacing, be sure to secure them with a distance of more than 5 mm from the circuit board. In addition, they are banded together to avoid touching other wiring, recheck this point as well after repair.

The wiring of the primary side should be wound more than one and half times, then soldered.

To protect the circuit board from carbonized under abnormal condition.

Fig. 5

Page 6

Removal of the Main Parts

Observe care in handling the parts since the parts are small in size and the distance between them are short due to a deck design aimed mainly at compactness and high performance.

Page 7
Enclosure assembly parts

1. Cassette door

Push the EJECT button to open the cassette door. Slide off the cassette door upwards to unlock its pawls off both sides.

2. Top cover

Remove 6 screws 1. (left, right and rear ..... 2 screws on each.)

  • 3. Bottom cover Remove 6 screws (2)
  • 4. Front plate assembly

Remove 6 screws (4 screws (3) on upper side and 2 screws (4) on bottom side).

5. Cassette holder Remove 2 screws (5) fastening the door bracket ass'y.

Mechanical assembly

Remove 6 screws 6 fastening the mechanical ass'y (2 screws on the front bracket, and 4 screws on the chassis.)

Mechanical parts

The removal methods of mechanical parts are the same as model KD-D20. Please refer to service manual of KD-D20 (No. 4208 page 6).

Electrical parts

When removing wire clamp (QHX2075-001), cut off it and when clamping wires, use new parts.

  • 1. Power switch
    • Remove 2 screws (7) fastening the power switch.
  • Power transformer Remove 4 screws (8) fastening the power transformer. Slide knobs (Recording level control)
  • Remove 2 screws (9) fastening the blind. 4. Main amplifier P.W. board ass'v
    • 1) Pull off 4 knob holders (10) of tape select switches and NR system switch.
    • 2) Remove a screw (12) fastening PIN jacks cover.
    • 3) Remove the recording switch wire (13)
    • 4) Remove 5 screws (14) fastening the main amplifier P.W. board.
    • 5) Slide down the rear side of main amp. P.W. board and pull off it to rear side.
  • 5. Power supply P.W. board ass'y
    • Remove 4 screws (15) fastening the power supply P.W. board

Dimensions

- 7 -

Page 8

Main Adjustments

[I] Equipment and measuring instruments used for adjustment

1. Electrical adjustment

  • 1) Electronic voltmeter
  • Audio frequency oscillator (range: 50-20 kHz and output 0 dB with impedance 600 Ω)
  • 3) Attenuator
  • 4) Standard tapes for REC/PB Maxell UD — SF tape TDK SA — SA tape IVC ME — Metal tape
  • 5) Reference tapes for playback (JVC Test Tape) VTT-658 (for head azimuth adj.) VTT-656 (for motor speed, wow flutter adj.) VTT-664 (for Reference Level 1 kHz) VTT-675N (for playback frequency response)
  • VII-675N (for playback frequency response) 6) Resistor 600 Ω (for attenuator matching)
2. Mechanical adjustment

  • 1) Torque testing cassette gauge, CTG-N.
  • 2) Blank tape (C-120) for tape running checker.
[II] Mechanical adjustment

This adjustment is the same as those of the service manual for PC-3 JW/W/WH/C (No. 1469) or PC-3L/LB (No. 1470).

Please refer to the service manual of PC-3 JW/W/WH/C (No. 1469, page 17) or PC-3L/LB (No. 1470 page 17).

[III] Electrical adjustments location

Main Amp. P.W. Board (parts ass'y side view)

Fig. 8

[IV] Electrical circuit adjustment procedure

In the steps marked by an asterisk (*), adjustment should be performed, however, only checking is sufficient with steps other than those.

Adjustment should be performed in the order of steps 1, 2, 3,..... Perform this adjustment with the NR SYSTEM switch set to OFF.

Step ltem Adjustment Adjusting
point
Standard
value
Remarks
1* Playback
frequency
response
  • Play back test tape VTT-675N (1 kHz, 10 kHz) for following adjustment.
  • 1. Connect/Disconnect C102 or C103 so that 10 kHz signal and 1 kHz signal gains become flat response.
C102
C103
Reference
frequency:
1 kHz
0±2 dB
at 10 kHz
NR SYSTEM: OFF
TAPE SELECT: SF/NORM
2* Adjusting
playback
level
  1. Play back the VTT-664 Reference tape
    (1 kHz) with the tape select switch set
    to the SF/NORM position.
  2. Adjust VR101 and VR201 until the
    LINE OUT becomes about -8 dBs.
VR101
201
- 8 dBs This adjustment becomes necessary
when a change in playback level results
(for example, due to head
replacement).
Page 9
Step ltem Adjustment Adjusting
point
Standard
value
Remarks
3* Checking
record/
playback
frequency
response
Record 1 kHz, 50 Hz and 12.5 kHz signals
at an input level of 0 dB to - 20 dB.
Play back the tape.
Check to see that the 50 Hz and 12.5 kHz
signal output deviations fall within the
standard range, using the 1 kHz signal out-
put as a reference.
Increase in high frequencies
(with a small bias current)
Optimum level
Decrease in high frequencies
(with a larger bias current)
1kHz 12.5kHz
Frequency (Hz)
For SF/
NORM
tape;
VR103
203
For Metal
tape;
VR104
204
Reference
frequency;
1 kHz
0±3 dB
at 50 Hz
0±4 dB
at 12.5 kHz
  • This checking should be performed for normal tape and for both right and left channels.
  • 1. Bias current adjustment for a cassette deck should generally be performed referring to the record/playback frequency response. This is because the frequency response of a cassette deck depends more greatly upon the bias current than does that of an open reel deck.
  • 2. If the bias current is not properly adjusted, the record and playback characteristics become as shown left.
4 Adjusting
recording
level
  1. Apply a 1 kHz, approx 10 dB signal
    to the LINE IN terminals. Adjust the
    recording level controls until the signal
    is available at - 8 dBs at the LINE OUT
    terminals.
  2. After checking to see if the Peak level
    indicator become 0, record the signal
    applied to both left and right channels
    using normal tape.
  3. Play back the recording part. Perform
    the recording signal adjustment with
    VR102 and VR202 so that the peak
    level indicator become 0.
VR102
202
0 VU The level difference between left and
right channels for SF/NORM tape and
metal tape should be less than 1 dB.
Perform the adjustment using a normal
tape, level difference between recor-
ding and playback for metal tape,
should be less than 1.5 dB, and that
between left and right channels should
also be less than 1 dB.
5 Checking
record/
playback
signal
distortion
  1. Record a 1 kHz, -8 dBs signal to LINE
    IN terminals and perform recording with
    the peak level indicator become 0.
  2. Play back the recorded part.
    Check the output with a distortion
    meter to see if the value conforms to
    the standard value.
SF/NORM
tape; Less
than 2.5%
SA/CrO2
tape; Less
than 3%
Metal tape;
Less than
2%
Be sure to perform this adjustment
following bias current and recording
level adjustments.
6 Checking
signal to
noise ratio
in record-
ing/play-
back
  1. Record a 1 kHz, O dB signal. Stop the in-
    put by disconnecting from the terminal
    to perform nonsignal recording.
  2. Play back the recorded part. Measure
    the O dB recording output and the non-
    signal recording output for comparison
    using an electronic voltmeter.
    Check to see if the value conforms to
    the standard value.
SF/NORM,
and Metal
tapes;
More than
42 dB
7 Checking
erasing
coefficient
  1. Apply a 1 kHz signal to the LINE IN terminals. Adjust the recording level controls until the peak level indicator become 0.
  2. Perform recording with the signal enhanced by 20 dB.
  3. Erase a part of the recording.
  4. Measure the output difference between the erased part and nonerased part to compare with an electronic voltmeter.
More than
65 dB
For the measuring, connect a band pass
filter between the deck and the elec-
tronic voltmeter.
Input
(1kHz OdB
+ 2OdB)
Band pass
filter
(1kHz)
8. Check
Auto stop
Hold less than 1 +0
-0.5 mm gap to the mag
net from the h all IC.
Page 10

Block Diagram

Recording System

Playback System

Power Supply and Mecha. Control Circuit

Page 11

Wiring Connections

Page 12

No. 4209 - 12 -

Page 13

Standard Schematic Diagram of KD-D30 (Main Amplifier Circuit)

- 13 -

No. 4209

Page 14

.

Page 15

Power Supply P.W. Board Parts

Page 16

Power Supply P.W. Board Parts List

▲ parts are safety assurance parts.

When replacing those parts, make sure to use the specified one.

Ref. No. Parts No. Parts Name Remar ks Q'ty
R1
R2
R3
R4
R5
VMW2541-***A
QRG019J-4R7
QRG019J-152
QRD129J-821S
QRD121J-122
QRG019J-680
P.W. Board
O.M.F. Resistor
"
C. Resistor
"
O.M.F. Resistor
4.7 Ω
1.5 kΩ
820 Ω
1.2 kΩ
68 Ω
1 W
1 W
2 W
1/2W
1 W
1
1
1
1
1
1
R6,7
R8
R9
R10,24,25
R11,14,35
QRD161J-152
QRD121J-2R2
QRD161J-224
″-562
″-563
C. Resistor
"
"
"
1.5 kΩ
2.2 Ω
220 kΩ
5.6 kΩ
56 kΩ
1/6 W
1/2 W
1/6 W
2
1
1
3
3
R12,13,31,36
R15
R16
R17
R18
" -103
" -682
" -333
QRD143J-225S
QRD161J-222
" 10 kΩ
6.8 kΩ
33 kΩ
2.2 MΩ
2.2 kΩ
"
"
1/4 W
1/6 W
4
1
1
1
1
R19
R2O,21,23
R22
R26
R27
" -472
" -223
" -151
QRD147J-102S
QRD161J-224
4.7 kΩ
22 kΩ
150 Ω
1 kΩ
220 kΩ


1/4 W
1/6 W
1
3
1
1
1
R30
R32
R33
R34
R37
QRD149J-121S
QRD161J-333
″ -473
″ -153
QRD147J-152S
O.M.F. Resistor
C. Resistor

120 Ω
33 kΩ
47 kΩ
15 kΩ
1.5 kΩ
2 W
1/6 W

1/4 W
1
1
1
1
C1
C2,3
C4,5,6,7
C8
C9
QET41ER-108
QCF11HP-103
QET41HR-477
QET61ER-476
QET61ER-336
E. Capacitor
F.C. Capacitor
E. Capacitor
1
2
4
1
1
C10,13
C11
C12
C14
C15
QET61HR-106
QET61ER-107
QEN41EM-226
QET41HR-104N
QFM41HJ-154
"
"
N.P.E. Capacitor
E. Capacitor
Mylar Capacitor
2
1
1
1
1
C16
C17
C18
C30
C31
QET61ER-476
QFN31HJ-103
QET41HR-227N
QET41ER-477N
QET41HR-106
E. Capacitor
Mylar Capacitor
E. Capacitor
"
1
1
1
1
IC1
IC31
Q2
Q3
Q4,5,31
LA2000
IR2408
2SC1318(R,S)
2SC1685(R,S)PH
2SA564(R,S)
IC
"
Si. Transistor
"
1
1
1
3
Q32
D1~4,5,7,8
D6
D9~16, 31~36
D17
2SC1685(R,S)PH
10E1-B
RD20E(E3)
1SS119-14TE
10E1-B
"
Si Diode
Zener Diode
Si Diode
"
MA165-TA5 1
7
1
14
1
Page 17

Main Amp. P.W. Board Parts List

▲ parts are safety assurance parts.

When replacing those parts, make sure to use the specified one.

Ref. No. Parts No. Parts Name Ren narks Q'ty
VMW1580-***A P.W. Board 1
R101,201,119 QRD161J-273 C. Resistor 27 kΩ 1/6 W 7
219,160,260
901 " 222 " 2210 " ٩
R102,202,127 -332 3.3 KM 5
B103 203 105 ″ -104 " 100 kΩ " 12
205.121.221
145,245,169
269,905,916 10010 " 2
R104,204 // ·184 ,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,, "
R106,206,138 ″ -823 02 KM -
238 120.0 " 2
R107,207 " 1 MO " 6
R108,208,172 -105 1 10122 Ŭ
2/2,1/3,2/3
P100 200 120
" _222 " 2.2 kΩ " 9
220 134 234
167.267.929
R110,210,170 ″ -103 " 10 kΩ " 10
270,171,271
906,911,913
931 " 101 " 100 0 " 4
R111,211,100 -101 100 1
200 - // 152 " 1.5 kΩ " 4
R112,212,144 -152 1.0 (12
244
B113 213
″ -224 " 220 kΩ " 2
R114,214,140 " -123 " 12 kΩ " 4
240
R115,215,163 ″ -223 " 220 kΩ " 4
263 " 1740 " 12
R116,216,126 -4/2 4.7 1.1 12
253 914 923
P117 217 910 1 ″ -562 " 5.6 kΩ " 4
912 002
R118,218 ″ -274 " 270 kΩ " 2
R129,229,130 ″ -682 " 6.8 kΩ " 4
230 " 1 40 " 5
R131,231,164 " -102 1 K12
264,928 " _683 " 68 kΩ " 6
259 908 909
P122 222 -512 " 5.1 kΩ " 2
R135,235 157 " -473 " 47 kΩ " 5
257.922 -
R136,236,142 ″ -334 " 330 kΩ " 4
242 200 10 " 6
R137,237,143 390 KM
243,148,248 - 753 " 75 kΩ " 2
n141,241 -755 " 120 40 " 4
K14/,24/,162 -124
B150 250 ″ -151 " 150 Ω " 2
R151.251.902 ″ -563 " 56 kΩ " 3
R152,252 ″ -153 " 15 kΩ " 2
R154,254 ″ -821 " 820 Ω " 2
R155,255 ″ -393 " 39 kΩ "
R156,256,158 ″ -333 | " 33 kΩ " 4
258 1
Page 18
Ref. No. Parts No. Parts Name Rema arks Q'ty
R161,261
R165,265
R168,268
R915
R917
QRD143J-155S
QRD161J-560
″ -154
″ -6R8
QRD121J-272
C. Resistor 1.5 ΜΩ
56 Ω
150 kΩ
6.8 Ω
2.7 kΩ
1/6 W


1/2 W
2
2
2
1
R918
R919
R920
R921
R924
QRG019J-181
"-680
QRD129J-4R7
QRD149J-100S
QRD121J-122
O.M.F. Resistor
"
C. Resistor
"
180 Ω
68 Ω
4.7 Ω
10 Ω
1.2 kΩ
1W

1/2 W
1/4 W
1/2 W
1
1
1
1
1
R925
R926
C100,200
C101,201
C102,202
"-681
QRG019J-680
QCS11HJ-331
"-361
"-131
"
O.M.F. Resistor
F.C. Capacitor
"
680 Ω
68 Ω
330 pF
360 pF
130 pF

1 W
50 V
1
1
2
2
2
C103,203
C104,204
C105,205
C106,206,108
208,143,243
154,254,906
C107,207
"-201
QEB41EM-106
QCS11HJ-471
QET41ERT-476
"
E. Capacitor (Low Leak)
F.C. Capacitor
E. Capacitor
200 pF
10 μF
470 pF
47 μF

25 V
50 V
25 V
2
2
9
C109,209
C110,210
C111,211
C112,212
C113,213
QET41ER-227N
QEB41EM-475
QET41AR-107
QFN41HJ-822
″ -182
E. Capacitor
E. Capacitor (Low Leak)
E. Capacitor
M. Capacitor
220 μF
4.7 μF
100 μF
0.0082 μF
0.0018 μF
25 V
10 V
50 V
"
2
2
2
2
2
2
2
C114,214,123
223
C115,215,116
″ -103
QEB41HM-105
"
E. Capacitor (Low Leak)
0.01 μF
1 μF

50 V
4
C117,217
C118,218,121
221,124,224
133,233,904
905
C122,222,142
QCS11HJ-470
QET41HR-106N
″ -335N
F.C. Capacitor
E. Capacitor
"
47 pF
10 μF
3.3 μF
"
"
2
10
4
C125,225
C127,227,134
234
QFN41HJ-473
″ -472
M. Capacitor 0.047 μF
0.0047 μF
" 2
4
C128,228,132
232,136,236
C129,229
C130,230,156
256
· ″ -333
″ -683
″ -104
"
"
"
0.033 μF
0.068 μF
0.01 μF
"
"
"
6
2
4
C131,231
C135,235
C138,238,141
241,149,249
901,903
C139,239
"-154
QEB41HM-224
QET41HR-105
"
E. Capacitor (Low Leak)
E. Capacitor
0.15 μF
0.22 μF
1 μF
""
"
2
2
8
C140,240
C144,244
C145,245
C146,246,160
QET41CR-227N
QET41HR-104N
QFN41HJ-122
QFN41HJ-152
"
M. Capacitor
M. Capacitor
220 μF
0.1 μF
0.0012 μF
0.0015 μF
16 V
50 V

50 V
2
2
2
2
4
260
C147,247
C148,248
QET41HR-105
QFN41HJ-124
E. Capacitor
M. Capacitor
1 μF
Ο.12 μF
"
"
2
2
C150,250,909
C151,251
C152,252
C153,253
" -153
" -392
QCS11HJ-391
QCS12HJ-151


C. Capacitor
0.015 μF
0.0039 μF
390 pF
150 pF


500 V
3
2
2
2
Page 19
Ref. No. Parts No. Parts Name Remarks Qʻty
C155,255
C157,257
C158,258,910
C159,259
C907
QCY12HK-221
QCS11HJ-151
QET41HR-474N
QFN41HJ-102
QET40JR-227N
C. Capacitor
"
E. Capacitor
M. Capacitor
E. Capacitor
220 pF 500 V 150 pF 50 V 0.47 μF " 0.001 μF " 220 μF 6.3 V 2
2
3
2
1
C908
C911
C912
C914
CRB1,2
QFP82AJ-103
QFP82XJ-152
QFN41HJ-122
QET41ER-336N
EXR-P472M393W
P.P. Capacitor
M. Capacitor
E. Capacitor
C.R. Block
0.01 μF 100 V
0.0015 μF
0.0012 μF 50 V
33 μF 25 V
1
1
1
1
2
VR101,201
VR102,202
VR103,203,104
204
α. QVP8A0B-054 V. Resistor 50 kΩ
20 kΩ
220 kΩ
2
2
4
2
L101,201 VQZ0013-001 2
L103,203
L104,204,105
205
VQP0001-332S
″-183S
Inductor
2
4
T901
IC101,201
VQH1009-018
VYH4514-002
NE652N
OSC Coil
Shield Case
IC
Dolby 1
1
2
2
IC901
IC902
Q101,201,102
202,108,208
AN6552
UPC78L15
2SC2634(T)
″″

Si. Transistor
1
1
6
Q103,203,106
206,109,209
110,210,901
902,905
2SC1685(R,S)PH " 11
Q107,207 2SC2001(L,K) " 2
Q903,904
D901,902
904 ~ 908
2SC2274(E,F)
1SS119-14TE

Si. Diode
or MA165-TA5 2
7
D903
S1
S2,3
RD6.8E(B3)
QSS9201-005R
QST4242-V03
Zener Diode
Slide Switch
Push Switch
for REC/PB
for NR
1
1
1
S4,5
CN901
"-V02
VMJ5006-003
VMJ3004-102
QMV5005-005

Jack Ass'y
PIN Jack Ass'y
Plug Ass'y
for EQ
for MIC & H.P
1
1
1
1
Page 20

Other P.W. Board Parts

Slide Switch (Voltage select SW)

Other P.W. Board Parts List

▲ parts are safety assurance parts. When replacing those parts, make sure to use the specified one.

Fig. 15

Ref. No. Δ Parts No. Parts Name Remarks Q'ty
(R/P Head) VMW4647-001 P.W. Board for R/P Head 1
(LED) VMW4629-001
LD-702
P.W. Board
LED
1
(Voltage select swi tch)
S02 VMW4644-002
VKS4354-001
QSS2325-203BS
QSS2325-203
QSR0084-001
VMA4151-001
VYSR106-007
P.W. Board
Wire Clamp
Slide Switch
Slide Switch
V. Select Switch
Insulator
Spacer
KD-D30B
KD-D30 A/C/E/J
KD-D30U
for Voltage select switch
1
1
1
1
1
1
1
(Input Volume)
VR105,205 VMW1580-***B
VMW1580-***C
QVZ6201-001
P.W. Board

V. Resistor
1
1
1
(Level Indicator)
RA,RB
CC,CD
CA,CB
CE
LT-1062
QRD161J-472
QET41ER-106N
QET41HR-105N
QET41ER-226N
L.E.D. Module
C. Resistor
E. Capacitor
1
2
2
2
1
(Indicator)
D961
D962,963
VMW1580-***D
GL-9PR92
GL-9NG92
P.W. Board
L.E.D.
Red
Green
1
1
1
(Rec Mute SW) VMW1580-***E
QSP0301-002
P.W. Board
Push Switch
1
(Power Transistor)
Q1 VMW2541-***B
2SC1162(B,C)
VKL5002-001
DPSP3006Z
P.W. Board
Si. Transistor
Heat Sink
Screw
for Q1
for Q1
1
1
1
1
(Hall IC)
VMW2541-***C
DN6835A
P.W. Board
Hall IC
1
(Power Switch)
S01 VMW2541-***D
QSP0219-061
P.W. Board
Push Switch
1
(Tape run LED)
D981~982 VMW2541-***E
GL-9PR92
P.W. Board
L.E.D.
red 1
3
Page 21

Mechanical Component Parts

Page 22

KD-D30 A/B/C/E/J/U

No. 4209 - 22 -

Page 23
Mechanical Component Parts List

▲ parts are safety assurance parts.

A parts are safety assurance parts. When replacing those parts, make sure to use the specified one.

Def No Parts No Parts Name Bemarks Q'ty
Ref. NO. Moin Pace 1
VK52115-001 Pause Trigger 1
VK34400-001 Spring Pause Trigger 1
3 VK$4401-001 FELever 1
5 VKW3006-027 Spring FF Lever 1
6 VK$4402-001 Play Trigger 1
VKW3006-028 Spring Play Trigger 1
8 VKS4403-002 EB Safety 1
9 VKS4404-001 Rew Lever 1
10 VKW3006-029 Spring Rew Lever 1
11 VKS4405-00A Pause Arm Ass'v 1
12 VKS4483-00A Play Arm Ass'y 1
13 VKW4333-001 Spring Pause Cam 1
14 VKS3147-001 Pause Cam 1
15 VKS4410-002 Lock Bush Pause Cam 1
16 VKW4334-001 Spring Play Cam 1
17 VKS4411-002 Play Cam | 1
18 VKS4410-002 Lock Bush Play Cam
20 VKS2117-00A Disk Base Ass'y
21 VKR4265-00A Supply Reel Ass'y
22 VKZ4003-003 Felt Back Tension
23 VKR4170-001 Ring
24 VKS4131-001 Reel Stopper
25 VKR4267-00A Take-up Reel Ass y
26 VKR4170-001 Ring
27 VKS4131-001 Reel Stopper
28 VKS3148-00A FR Base Ass'y FF 1
29 VKW3006-031 Spring
30 VKW3000-032 Bew Gear 1
Special Wester Row Gear 1
32 VK24004-001 ER Stopper
33 VKW3006-033 Spring FB Base 1
35 VKS4414-00A FR Arm Ass'v 1
36 VKW3006-034 Spring FR Arm 1
37 + VKH3000-045 Collar " 1
38 VKS4416-002 FR Trigger 1
39 VKW3006-035 Spring FR Trigger | 1
40 VKS4417-001 FR Cam | 1
41 VKW3006-036 Spring FR Cam 1
42 VKS4410-002 Lock Bush 1
43 VKS4418-001 Return Lever | 1
44 VKW3006-045 Spring Return Spring
45 VKR4272-00A FW. Gear Ass'y
46 VKR4276-001 Roller
47 VKL3352-00A Chassis Base Ass'y
49 VKL3354-00A Button Case Ass'y
50 VKS4420-00A Button Ass'y 2
51 VK54420-00C Pause Button Ass'y
52 VK34493-00A 1
53 VKW4345-002 spring
54 -001
VKW/4326-001
" 2
55 VKI 3355-007 Bec Cam 1
57 VKL5125-00A Main Cam Ass'y 1
E0 VKI 3357-002 Sub Cam 1
50 VKL3358-001 Switch Cam 1
60 VKW3002-094 Tension Spring Switch Cam ~ Main Cam 2
61 // -100 , Switch Cam ~ Rec. Cam | 1
Page 24
Ref. No. Parts No. Parts Name Remarks Q'ty
62
63
64
65
66
VKW3002-095
VKS4422-001
VKW4340-001
VKW4327-002
VKS4423-001
Tension Spring
Select Arm
Spring
Wire
Wire Stopper
Sub Cam
Select Arm
1
1
1
1
1
69
70
71
72
73
VKF4115-00A
VKS4424-00A
VKS4427-001
VKW3002-096
VKS4428-003
Capstan Metal Ass'y
Take-up Idler Ass'y
Pause Arm
Tension Spring
Brake Arm (1)
Take-up 1
1
1
1
1
74
75
76
77
78
VKW3002-097
VKS4429-001
VKS4430-002
VKW3002-097
VKS4431-002
Tension Spring
Brake Lever
Brake Arm (2)
Tension Spring
Brake
Brake Arm (1)
Brake Arm (2)
1
1
1
1
1
79
80
81
82
83
VKP4121-00A
VKW4356-001
VKL3359-002
VKS2119-001
VGH0421-003
Pinch Roller Arm Ass'y
Pinch Roller Spring
Slide Base
Head Mount Base
R/P Head Ass'y
1
1
1
1
1
84
85
86
87
88
ZMM090430-0A
VKW3001-020
VKW4342-002
VKW3002-099
VKS4432-002
E Head Ass'y
Compression Spring
Slide Base Spring
Tension Spring
Roller
R/P & E. Head 1
2
1
1
3
89
90
91
92
93
VKS4433-001
VKS4434-001
VKY4238-001
T41615-004
VKW4341-001
Switch Arm
Cassette Guide
Spring Plate
Stell Ball
Spring
Slide Base 1
1
1
1
1
94
95
96
97
98
VKS4435-003
VKW3002-011
VGP0601-013
VKW3002-043
VKS4436-001
Rec Lever
Tension Spring
Solenoid Ass'y
Tension Spring
Rec Arm
1
1
1
1
1
99
100
101
102
103
VKF3120-00A
VKW3001-010
VKB3001-011
VKL3402-001
VKS4437-001
Flywheel Ass'y
Spring
Belt
F.M. Bracket
Thrust Plate
Thrust
Capstan
1
1
1
1
104
105
106
107
108
۸ MMI-6A2LKUA
VKS4139-002
VKZ4014-001
VKS4438-002
VKW3002-039
D.C. Motor
Motor Pulley
Special Screw
Rec. Safety Arm
Tension Spring
Rec - S. Arm 1
1
4
1
1
111
112
113
114
115
VKS4492-00A
VKY4239-001
VKS4490-001
VMW4647-001
VKW3006-049
Rec. Arm Ass'y
Pack Spring
Select Arm
Printed Wiring Board
Spring
for REC/PB Head 1
1
1
1
1
116
117
118
119
121
VKW4374-002
VKL3403-001
VSH1121-001
VSH1119-001
Q03093-838
"
Switch Bracket
Leaf Switch
"
Washer
1
1
2
3
1
122
123
124
125
126
" -627
" -827
" -522
REE1500
BEE2500
"
"
E. Ring
Thrust
Öil Cut
Select Arm x 1
Rec. Arm Unit x 1
Switch Cam x 1
1
1
1
2
2
120 NCE20UU Switch Cam x 1
Pinch Roller Ass'v x 1
2
Page 25
Ref. No. Parts No. Parts Name Remarks Qʻty
128 HPST2604Z Screw Solenoid Ass'y x 1
Pack Spring x 1,
Side Bracket Ass'y x 3
5
129 HPST26067 " 1
130 HPST2612Z " Main Base x 1 Disk Base x 1 2
132 | . SBSB2006Z " Leaf Switch 2
133 SDSP2006Z " " 3
134 VKZ4109-001 Motor Screw 3
135 SPSX2010N " R/P Head x 2 E. Head x 1 3
136 SSST2604Z " Capstan Metal Ass'y 3
137 SSST2605Z " Button Case 2
138 SPSP2612Z Side Bracket Ass'y 1
139 SPSX2008N Screw E. Head 1
141 VKL3399-001 Side Bracket 1
142 VKS4488-001 Lock Arm 1
143 VKH3001-054 Flange Collar 1
144 VKS4487-001 Connecting Lever 1
145 VKW3002-063 Tension Spring E. Button | 1 |
146 ″ -034 " E. Lever 1
147 VKS4480-001 Eject Button 1
148 VKH3000-053 Collar 1
149 VKL5256-002 Bracket 1
150 SPSK1425M Screw 1
151 VKZ4130-001 Cushion Rubber 3
152 TFB345469-01 Rubber Stopper 1
154 VKL5295-001 Stopper
155 SSSP3004Z Screw 1
156 SDSP3004Z Screw 1
157 VKL5199-002 Plate 1
Page 26

Enclosure Assembly and Electrical Parts List (Except P.W. Board Parts)

▲ parts are safety assurance parts.

When replacing those parts, make sure to use the specified one.

Ref. No. Δ Parts No. Parts Name Remarks Q'ty
1 VJD3340-001 Mecha. Cover 1
2 VJD4437-003 Disk Plate ĺ | 1 |
3 VKL5257-001 Mecha. Bracket (L)
4 VXP4240-001 Push Button Mecha. 6
5 VKB3000-053 Beit 1
6 VJD3339-001 Blind
VK53159-001 Volume Lever
9 VKS3160-002 Bemote Bar
10 VXP4234-001 Push Button 4
11~15 ZCKDD30Y-CBF Front Plate Ass'y
(18,21)
23~28
11 VJC1236-002 Front Plate 1
VJD4593-001 Scale Plate 1
13 VJD4594-002 Plate 1
14 E69212-001 JVC Mark 1
15 VJD3342-001 Counter Escutcheon 1
10 VXP4241-001 Reset Knob
18 V ID3357 001 Button Escutoboon
19 VXP4239-001 Push Button Fiect 1
20 Compression Spring
20 V ID3341-002 Button Case
22 VKI 5262-00A 1
23 V.IK3195-001 Finder
24 VJD2189-001 LED Escutcheon
25 V.ID4595-002 I ED Plate 1
26 VJD3198-001 Light Lens
27 VJD4592-001 Button Escutcheon
28 E69189-002 Push Knob Ass'y 1
29 VKS4003-011 Pipe 1
30 VYH4460-001 Gear 1
31 VJT2073-001 Cassette Door 1
32 VKY4273-001 Cassette Spring 2
33 VKY4252-002 1
34 VJ13089-001 1
35 VKW4365-002 Holder Spring 1
36 VJD3311-001 1
38 VJC2075-001 Bottom Cover
40 VJC2076-001 4
VK73001.002 Special Scrow
42 VYN2100-002 Name Plate 4
12 ″ -003PA // //////////////////////////////////// KD-D30A 1
″ -004PA " КД-ДЗОС, -004РК 1
″ -005PA " KD-D30E
″ -006PA " KD-D30J 1
″ -007PA KD-D30U 1
43 LD-702
44 VIVIVV4629-001 Amp Chassis
46
17
VJC2074-002 Kear Panel
47
48
VKL3383-001
VKL2160-002
Front Bracket (L)
49 VKL2100-003
50 VKL3387-001 Power Bracket 1
51 VKL3395-001 Bec Arm 1
52 VKL5260-00A Rec. Bracket Ass'v
53 VKW4363-001 Spring | i |
54 VKW4364-002 Rec. Wire 1
Page 27
Ref. No. Parts No. Parts Name Remarks Q'ty
55 VMW4644-001 P.W. Board Voltage Select SW 1
56 OSS2325-203BS Slide Switch KD-D30A/B/C/E/J 1
" -203 " KD-D30A/C/E/J 1
57 VMA4151-001 for V.S. Switch
58 QSR0084-001 V. Select Switch KD-D30U 1
60 Δ VKL4275-001 Bracket " 1
61 VTP54C3-031BBS Power Transformer KD-D30B 1
″ -031A
″ -032B
,
VTP54U3-031B " KD-D30U 1
62 Â QMP9017-008BS Power Cord KD-D30B 1
QMP2560-200
OMP1200-200
KD-D30A
KD-D30C/J
1
i QMP3900-200 " KD-D30E 1
QMP7600-200 "
Otherin Daliaf
KD-D30U 1
63 UHS3876-16285
″-162
KD-D30A/C/E/J/U 1
64 VKC5160-001T Tape Counter 1
65 VKL5258-001 Eject Lever 1
67 VKH4387-001
VKZ4001-011
Wire Holder 5
68 VKL5276-001 Lamp Holder 1
69 VGZ0001-006 Lamp Ass'y 1
70 T47818-002
VXP4258-001
Spacer
Push Button
Rec. Mute 4
72 VKL5268-001 Bracket (A) 1
73 VKL5269-001 Bracket (B) KD D2011 1
/4 PE2500 E Ping Fiect Escutcheon 2
82 REE3000 L Thing
"
Rec. Bracket x 1 2
100000047 1
83 LPSP26042
SSSP26047
Screw Door Bracket Ass'v 2
85 LPSP3006Z " Power Switch P.W.B. x 2 4
V. Select SW x 2 (KD-D30U)
86 SDSF2606Z "
"
Tape Counter
P W B
2
88 SDSP3006R " V. Select Switch 2
89 SDST2604Z " Mecha. Bracket 2
90 SDS126062 Blind X 2 Lamp holder X 1 3
91 SDST3006R Rear Panel x 3 9
Angle x 2
Power Bracket x 1
92 SDST3006Z " Mecha. x 6 32
Bottom Cover x 6
Front Bracket (L) x 3
Front Bracket (R) x 3
Rec. Bracket x 1
Power Transformer x 4
P.W.B. x 3
Wire Holder x 2
93 SSST3006Z " Front Plate 3
94 SDST3008Z Screw Main P.W.B. x 5 11
Fower Supply X 4
Transistor X 2
1 1 1
Page 28

Packing

Positions of controls and switch knobs at renew packing

Power switch : OFF
NR system SWs : OFF
Tape select SWs : SF/NORM
Rec level controls : MIN
Counter : 000
Mecha. operation buttons : OFF
Eject : OFF
Rec Mute SW : OFF

Fig. 18

Packing Material Parts List
Ref. No. Parts No. Parts Name Remarks Q'ty
1 VPD2100-J02 Carton KD-D30B 1
″ -JO3 " KD-D30A 1 1
″ -J04 " KD-D30C 1
″ -J05 " KD-D30E 1
″ -J06 " KD-D30J 1
″ -J07 " KD-D30U 1
2 VPH3111-001 Cushion Left 1
3 VPH3112-001 " Right 1
Q04141H Wire Clamp for Power Cord 1
TKS000501-08 Sheet for Unit 1
VPE4002-005 Poly Bag for Unit KD-D30B 1
QPGA060-06005 Envelope for Unit 1
KD-D30A/C/E/J/U
AP4056A-36 Poly Bag for PIN Cord 1
4 VPE4002-004 " for Inst. Book KD-D30B 1
AP4056B-077 Envelope for Inst. Book 1
KD-D30A/C/E/J/U
Page 29

Accessories

A parts are safety assurance parts.

When replacing those parts, make sure to use the specified one.

Parts No. Parts Name Remarks Q'ty
VMP0002-00B
VNN0095-901
~ -301
BT20013C
BT20029B
Pin Cord
Instruction Book
Guarantee Certificate
Warranty Card
KD-D30A/C/J/U
KD-D30B/E
KD-D30B
KD-D30A
2
1
1
1
1
BT20025E
BT20047
TJL000443-01


Seal
KD-D30C
KD-D30U/J
KD-D30B
(Made in Japan)
1
VNC5004-001
TLT052401-01
BEAB Label
Mark Sticker
Warning Label
KD-D30B
KD-D30B/E
KD-D30A/B/E
for Dis Connection
1 1
QZL1002-003BS
T44362-001
E66416-003
"
CSA Marker
Envelope
KD-D30B
for 2 Pin Power Cord
KD-D30C
KD-D30J
for Werenty Cord
1
BT20046A
BT20046
Special Relay Card KD-D30J
KD-D30U
1
1
BT20044D
TLT000505-01
E7795-1
VNC5311-101
V04062-001
Safety Instruction
UL/CSA Caution Label
EP Mark
Caution Card
Siemens Plug
KD-D30J
"
KD-D30U
KD-D30U
"
1
2
1
1
1
T46328-001
VND4037-001
Caution Label
F. Mark Label

КD-D30Е
1
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