ADJUSTING THE ELECTRICAL SECTIONS........................................................................................................9~10
NOTE FOR PARTS LIST............................................................................................................................................10
PARTS LIST OF 3U-2584 AUDIO METER UNIT................................................................................................. 11-13
PARTS LIST OF 3U-2063 POWER SUPPLY UNIT...................................................................................................13
PARTS LIST OF EXPLODED VIEW.......................................................................................................................... 14
Recording/playback head (amorphous) X 1
Erase head (Double-gap ferrite) X 1
Capstan (DC servo motor) X 1
Reel (DC motor) X 1
4.8 cm/sec. (FIX)
Approx. ±12%
Approx. 110 sec. with a C-60 cassette
Approx. 105 kHz
Dolby t NR on: more than 74 dB (CCIR/ARM)
25-19,000 Hz ±3 dB (at —20 dB, Metal tape)
More than 40 dB (at 1 kHz)
More than 65 dB (at 1 kHz)
0.055% WRMS (JIS method), ±0.14% w. peak
80 mV (—20 dBm) input level at maximum
Input impedance: 50 kohm unbalanced
775 mV (0 dB) output level at maximum
(with 47 kohm load, recorded level of
200 pwb/mm)
1.2 mW output level at maximum
(optimum load impedance
8 ohm-1.2 kohm)
Voltage is shown on rating label
16 W
482 (W) X 134 (H) X 275 (D) mm
4.7 kg
19-inch rack mountable (3U)
Above specifications and design styling are subject to change for
improvement.
Dolby noise reduction and HX Pro headroom extension manufactured
under licence from Dolby Laboratories Licensing Corporation. HX Pro
originated by Band & Olufsen.
"DOLBY", the double-D symbol □□ and "HX PRO" are trademarks of
Dolby Laboratories Licensing Corporation.
Best results will be obtained with use of DENOIM DX and HD Series cassette
tapes.
REC/PB MEAD
“"-CE=i
JK301
0/2)
LINE IN LCM
- ^
-----------
I.INF: in Ren
VRiOl
ìNPJTVOL'JML'
DOLBY NR SYSTEM iC
I 00
i r”
I
□
z
O
O
7Ñ
D
>
O
30
>
Q]
□
-LEVEL DIAGRAM
PLAYBACK SYSTEM
TCC-130 IDOLBY B-Pi^PE
400 Hz 200 nwb/m
1CDN-730RI
RECORDING SYSTEM
INPUT FREQUENCY
400 Hz
-40
-50
-60
-70 -
REC PLAY FREQUENCY : 400H7
IDN-730RI
j DISASSEMBLY INSTRUCTIONS j
1. How to Remove the Front Panel
(1i Remove the four screws, (4 X 12. CBTS-P) in the side of the
top cover. Move the top cover to the rear and rise it to
remove it.
(2) Press the eject knob, open the cassette box and remove the
cassette window as shown in the figure. .
Note: Handle the cassette window with care because it
can be scratched easily.
(3' Remove the three screws (3x10 CBTS-P) on top of the
front panel, the two hooks on the top, the three hooks on
the bottom and pull the unit forward to detach it.
(3) Disconnect all lead connectors.
C Mechanism ( W151 (7P) — CN151 '
I Head wire — CN301
1
Head wire — CN302
Meter circuit
board
Remove Volume Knob and Volume Knob (C).
(4)
Remove the four retaining screws (2 6 x 6 CBTS(Si)-Z) (3
(5)
X 10 CBTS(P)-B) holding the Mecha Bracket.
Remove the Hooks at the left and right of the f 'ont face of
(6)
the Front Esc. Ass'y, and the two hooks on the bottom.
Front Ass'y can be removed towards the front.
I W131 (3P) - CN131
1
23PFFC-CB121 .
Audio
circuit
board
2 hooks on the top of the front panet
m,...i. i. .... a
T
3 hooks on the bottom of the front panel
_ _____________0_
2. How to Remove the Front Escutcheon Ass'y
(1) Remove the top cover and front panel. (Refer to Step 1 )
(2) Remove the three retaining screws 3x10 CBTS-(P)-B
holding the Front Escutcheon at the front.
T
Hooks at left and right of Front Esc. Ass'y
3. How to Remove the Mec hanisms
Remove the four Mechanism retaining screws 3x10 CBTS(P)-B
and lake out C Mechanism.
4. How to Remove the Meter Circuit Board
(1) Remove the top cover and the front panel. (Refer to section
1.)
(2) Remove the front esc. ass'y, (Refer to section 2.)
(3) If you remove the five binding screws (3x8 CBTS -P tight)
of the meter circuit board, and loosening the five hooks, the
meter circuit board can be taken off.
Note; When replacing the tact switch, check to make sure
that It is not floating above the circuit board. If it is
floating, the switch will oe in the on condition when
the set is assembled
o
X
Meter Circuit Board
5. How to Remove the Cassette Door
(1 ) Remove the MINIthA'I'JIPER'retaining screw J x 8 CBTS(P)-
B and take out thé MINI DAMPER,
(2) Hold the legs of the CASSETTE BOX folded inwards and
pull up to remove the CASSETTE BOX and BOX SPRING.
tDN-730RI
Front surface of Front Ass'y
6. How to Remove the Audio Circuit Board
(1) Remove the top cover and the front panel. (Refer to section
. 1.)
Remove the front esc. ass'y. (Refer to section 2.)
(21
Remove the connectors from the audio circuit boaid and
(3)
power supply circuit board.
Side of the Side of the
Power supply CN901 — (7P) — CN901 audio circuit
circuit board TBG board
' CONNECTOR
Note: • Almost all of the service repairs to the audio cir
cuit board can be performed by removing the
bottom cover on the rear side of the chassis
Only when it IS unavoidable should you refer to
the removal method mentioned above.
• When reassembling, follow the procedures in
the reverse order. However, if each of the various
parts are not assembled properly in their respec
tive position, the sel cannot be assembled in
somie cases. Therefore, check the work of each
step carefully when assembling.
How to Remove the Power Supply Circuit
Board
Remove the top cover and the front panel. (Refer to section
1 )
Remove the bushing that is fixing the power supply cord
from the chassis.
When the five screws (4x19 CBTS-P tight) (3x10
(3)
CBTS-P tight) that are holding the power transformer and
chicuit board are removed, the power supply circuit board
can be removed by raising it.
Cress.s
Remove the screw (3 x 10 CBTS-P tight) (3 xBCBTS-S
(4)
tight) that is holding down the 4P pin jack and circuit board.
By removing the two catches (left and right) of the chassis
holding down the circuit board in the directions of the
arrows shown below, the audio circuit board can be pulled
forward.
IE)N-730ni
ADJUSTING AND CHECKING THE
MECHANISM SECTION
1. Replacing-the Pinch Roller (36)
Before replacing the pjnch roller, clean the tape contact surface
of the pinch roller and the capstan shaft.
Most causes of poor tape transport can be traced to dirty pinch
roller and capstan shaft. Remove the clips that press the pinch roller and pull the pinch
roller forward to remove it.
After replacing, run a padless C-90 tape to check for tape curls
at the tape guide section of the head.
2. Checking the Pressure Force of the Pinch
Roller (36).
In the playback mgdej^hpok a spring weight opto the bracket at
the center o* the pinch roller. After separating the pinch roller
from the capstan siTaft, allow the pinch roller to contact the caps
tan shaft again. Check to make sure the spring weight reads be
tween 250 ~ 350 g when the pinch roller starts to rotate
Replace the pinch roller (36) when it does not conform to the
standard specification values.
Capstan shaft
\
4. Replacing the ERASE HEAD (15)
(1) Unscrew the erase head holding screws (53).
(2) By unsoldering the HEAD W RES can be taken off the
mechanism unit.
(3) When the replacement is completed, secure the screws
with the screw lock.
white;
5. Checking the Take-up Torque
Load the cassette type torque meter (SONY TW21;1 1).
Check to make sure that the average torque meter reading is
within 30-70 g-crn during playback. If it is not within this range,
check the voltage (approx. 4V) of tha reel motor. If the voltage is
low, the torque will be weak: if it is high, the torque will be strong.
6. Checking the FF and REW Torques
Load the cassette type torque meter (SONY TW2231). Check to
make sure the torque meter indicates within 90—180 g-cm at
the end of FF and REW.
7. Checking the Back Tension Torque During
Record/Playback
Load the cassette type torque meter (SONY TW21 11) : check
to make sure the torque meter reads between 2 —6 g-cm during
playback and that there is no unevenness.
If it is not within this range, replace the reel ass'y (5) or Washer.
3. Replacing the Record/Playback Head (14)
(1) How to remove the R/P HEAD.
1) Remove securing screw (1) and azimuth adjusting
screw (1) from the record/playback head.
2) Remove the soldered head wire and disassemble the
mechanical unit to remove the record/playback head.
(2) How to assemble the R/P HEAD.
Reverse the above 1 procedures for removing the R/P
HEAD.
' Solder the HEAD WIRE according to the diagram,
mechanism (recording/play back head)
8. Checking the FF and REW Times
Load a C-60 cassette tape (DEMON GR-2/60): check to make
sure the tape is fast forwarded or rewound within 110 sec
onds. If it is not within this range, check sections 5 and 6.
9. Checking the Existence of a Cassette
Housing and the Operation of the Erase
Prevention, Metal and Chrome Switch
Confirm that the sensor arm properly detecting the tape t/pe de
tection holes on the cassette housina.
DN-730RI
ADJUSTING AND CHECKING THE
ELECTRICAL SECTION
e
Caution on adjusting
Before adjusting, clean the head surface, capstan and the
(1)
pinch roller with a gauze or a cotton swab moistened with
alcohol.
(2)
Demagnetize the R/P HEAD and the E. HEAD with a head
eraser
(3)
Completely demagnetize the adjustment screwdriver.
(4)
Unless instructed otherwise, set the various controls as fol
lows.
O DOLBY NR switch................................................................OFF
O TAPE SPEED volume........................................Center position
1. Tape Transport Check
Load the transport check cassette. In the operational mode, illu
minate the fixing guides of the R/P HEAD with a lamp and check
to make sure the tape edge does not come in contact with the
tape guide section.
The tape transport is the most important element in determining
the performance of a cassette deck.
Avoid moving the various adjustment screws, nuts, etc., as much
as possible Refer to the pages on "Adjusting and Checking the
Mechanism Section" when replacing or adjusting the R/P HEAD.
3. Checking and Adjusting the Tape Speed
(1) Connect the frequency counter to the LINE OUT terminal
and load test tape (SONY TY-224).
(2) Playback a test tape. At about halfway through the tape,
where the tape transport is stable, adjust the adjustment
points (RT305) on the P.W. BOARD (222 2778 ♦**) so that
the frequency counter will have a reading within the
range of 3,000 Hz ±6 Hz. Fig. 3-1
F. Counter
PB Amp
LINE OUT
SONY TY-224
3000 I
3000 Hz
Í 6Hz
4. Adjusting the Playback and Recording
Section
ProcedureItem
1PLAYBACK
GAIN
2P.B.
Frequency
REC/P.B.
3
Frequency
4
REC GAIN
REC/P.B.
5
Frequency
Usage tape —
input condition
A-BEX
TCC-130
A-BEX
TCC-162B,262B
GR-2/60
1 kHz, -40 dB
10 kHz, -40 dB
GR-2/60
1 kHz, -30 dB
GR-2/60
Dolby NR C
ResponseMode
Fig. 4-1
Fig. 4-1
Fig. 4-2REC. PLAY
Fig. 4-2REC. PLAY
Fig. 4-3REC. PLAY
PLAYBACK
PLAYBACK
1
PLAYBACK
1
PLAYBACK
i
PLAYBACK
Playback Fraquancy Raaponaa
Adjustment
iocation
RT-101 (L)
RT-201 (R)
RT-103 (L)
RT-203 (R)
RT-108 (L)
RT-208 (R)
Adjustment procedure
Adjust the LINEOUT output to 775 mV
(OdBs).
Make sure the playback characteristics
conform to Figure 4-2.
Record 1 kHz and 10 kHz alternately.
Adjust each volume so the 10 kHz
playback output is 0.5 dB in relation to
the 1 kHz playback output.
Adjust each volume to the playback output
is the same as when the recording monitor
is output.
Make sure that the DOLBY NR C recording
and playback characteristics conform to
Figure 4-3.
2.
Adjusting the Azimuth
After completing the tape transport check, load the test
(1)
tape (A-BEX TCC-153). Fig. 2-1
(2)
Playback the test tape; adjust the azimuth screw so that
section A of the resurge wave form is maximum and section
B is minimum. Fig. 2-2
OSCILLOSCOPE
RESURGE VYAVE
Y
O'
y
30'
Y
OKNG
O
90'
135'
180'
L-CM fl-CH
Fig. 3-1
Racord/Playback Ovarall Fraquancy Rasponsa
Tape HD-7E'60
Dolby NR Off
Level — 20 dB from Dolby Level
Dolby C Racord/Playback Ovarall Fraquancy Rasponsa
USES
Checking the Take-up Torque and
Back Tension.
SONY
Checking the FF and REW Torque
Checking the FF and REW Times.
Adjusting the Azimuth.
SONY
Checking and Adjusting the Tape
Speed.
Adjusting the Playback Level
Checking the Playback Frequency
Response
Transport checking cassette tape
NOTE FOR PARTS LIST
• Part indicated with the mark '' ® ” are not always in stock and possibly to take a long period of time for supplying, or in some
case supplying of part may be refused.
•When ordering of part, clearly indicate “1” and ‘T (i) to avoid mis-supplying.
• Ordering part without stating its part number can not be supplied.
• Part indicated with the mark is not illustrated inthe exploded view.
• Not including Carbon Film ±5%, 1/4W Type in the P.W.Board parts list. (Refer to the Schematic Diagram for those parts.)
WARNING:
Parts marked with this symbol A WBSS have critical characteristics.
Use ONLY replacement parts recommended by the manufacturer.
• Resistors
Ex.:RN
RD Carbon
Composition
RC
RS : Metal oxide film2H . 1/2W
RW Winding
RN
. Metal film3D 2WM
RK
Metal mixture
» Units; ohm
R 2
* Capacity (electrolyte only)
2 2 2
I ^
• Units: pF.
2 R 2 —
TL±
e Units: |iF.
14K
Type Shape Power Resist- Allowable Others
------------------
-----------------
2E182FR
and per
formance
2B1/8WF
2E : 1/4W
3A . 1WK
3F
3H
1800 ohm “ 1.8 kohm
Indicates number of zeros after effective number
2-dlgit effective number.
-1,2 ohm
-1 -digit effective number.
-2-digit effective number, decimal point indicated by R.
2200pF
Indicates number of zeros after effective number,
- 2-digit effective number,
-2.2nF
-1 -digit effective number,
-2-digit effective number, decimal point indicated by R.
ance error
G
J±5%NB . Non-burning type
3W
5W
1formance |, 1
\
: ±1%P : Pulse-resistant type
±2%
NL : Low noise type
±10%FR Fuse-resistor
F
±20%
. Lead wire forming
• Capacitors
Ex.: ÇE 04W 1H ^ M ^
Type Shape Dielectric Capacity Allowable Others
1 and per- strengtherror
i I1
CE . Aluminum (Oil
electrolytic
CA : Aluminum solid
electrolytic
CS : Tantalm electrolitic
Film
CO
CK
. CeramicIV
CC . Ceramic1H 50V
CP
Oil2A100V
CM ; Mica
CF
Meiaiized
CH
. Meiaiized
OJ
1A
1C : 16VJ±5%HR : Ripple-resistant type
IE25VK
2B125VP
2C160 V
2D 200V
2E 250VD
2H
2J
* Capacity (except electrolyte)
2 2 2
-------------- 2200tiMF - 0.0022pF
I ^— (More than 2) — Indicates number of zeros after effective number.
^
------------------------------
e Units: pF
2 2 1
---------------
l—(0 or 1)
T
-----------------------------
• Units. PF.
a When the dielectric strength is indicated in AC. “AC" is included after the
dielectric strength value.
220PF
----------------
F
:6 3V
10V
35V
; 500V
630V
±1%
HS : High stability type
G . ±2%BP
: ±10%DL : For charge and discharge
M
±20%HF : For assuring high
Z : +80%
-20%
+ 100% WUL-CSA type
-0%
+025pF
C
±0.5pF
-
: Others
• Non-polar type
frequency
U : UL part
C : CSA part
F
. Lead wire foming
2-digit effective number.
Indicates number of zeros after effective number.
2-digit effective number
10
□N-730R
PARTS LIST OF GU-2778 AUDIO/METER UNIT
■< Ref. No.
1 Part No.
SEMICONDUCTORS GROUP
IC301
iC3o;:
j
IC303
1C304
1C306
IC307
■ IC501 '
'lC601
i 1СЭ02
1 1СЭ03
IC309
IC602
1СЭ01
IC9C4
IC910, 911
TRI 01
TR102
TR103
TR104
TRIOS, 109
TR111~113
TR114, 115
TR201
TR202
TR203
TR204
TR208, 209
TR211-213
TR'307
TR.308
TR309, 310
TR370
TR371
TR507
TR508
TR515
TR552, 553
~P554~556
TF 557
TR558
TR559
TR560, 561
TR601
TH904
' DI55
D255
D315, 316
D320
D503
D517, 518
D553
D554
D601,602
D901~904
СЭ10, 911
C915, 916
ZD304, 305
ZD410
2D531
2D551
ZD552
¿:D907
I ZD912
ZD913
i
_
262 0590 001
1 262 08&ÌÌ106
263 0720 Ó04 _
263 C565 007
¡ 263 0711 000
1 263 0354 001
263 0565 007
! 262 0447 009
1 222 2045 001
1
262 1711 909
1 263 0810 008
I 263 0503 001
263 0793 002
263 3432 907
268 0072 003 ICJ’rotector ICP-NIO
269 0074‘*907’'|Trarrsistcir DTA114TS(10K) ^ Built in Resistor
269 0102 905 Transistor DTC124EKT146 Built in Resistor
273 024S900 | Transistor 2SC2603E/F T [
275 0048 912 ! Transistor 2SK381 (B)/(C)-T j
269 0038 906
____
269 0088 906
269 0102 905 I Transistor DTC124EKT146- | Built in Resistor
269 0074 907 ] Transistor DTAl 14TS(1 OK) j Built in Resistor
269 0102 905 Transistor DTCl 24EKT146 Built in Resistor
273 0245 900 i Trans stor 2SC2603E/F T |
275 0048 912 i Transistor 2SK381 (B)/(C)-T |
269 0088 906 ! Transistor DTCl 14TKT96 ; Built in Resistor
269 0088 906 I Transistor DTCl 14TKT96 | Built in Resistor
265 0040 902 j Transistor DTC144ES(47K-47K) 1 Built m Resistor
269 0062 906 ' Transistor DTC124E5(22K-22K) Built in Resistor
269 0016 907 i Transistor DTA144WS(47K-22K) Built in Resistor
269 0018 905 I TransistO' DTC143ES[4.7K-4.7K) Built in Resistor
269 0091 906 ^ Transistor DTC143TKT96 ' Built in Resistor
274 Q03B 905 ; Transistor 2SD468[C)TF j
269 0015 908 Transistor DTC124XS(22K-47K) | Built in Resistor
269 0082 902 I Transistor DTCl 14EKT96 ! Built in Resistor
269 0054 901 Transistor DTC144EKT96 , Built in Resistor
271 C183 92-7 ■ Transistor 2SA933(R/S)T93 i
269 C122 901 ‘ Transistor DTC144WKT146 | Built in Resistor
272 0025 907 '
276 0432 903 ¡
276 0432 903
276 0432 903
276 0432 903
, 2>
_ ’6 0432 903 i Diode 1 SS270A TE |
■ 2
276 0553 905 i Diode 1 SR35-200A{T93X) '
276 0432 903 : Diode 1SS270A TE j
276 0432 903 | Diode 1SS270A TE |
276 0553 905 I Diode 1 SR35-200A(T93X) |
2 76 0553 905 ' Diode 1SR35-200A(T93X) i
Transistor DTC114TKT96 | Built in Resistor
^6 0553 905 i Diode 1 SR35-200A(T93X) |
Part Name
TCUPC1330HA
1C UPG4570C 1C HA12170NT
1C BA15218
1C M5218AP
1C UPC1297CA
1C BAI 5218
1C BA6109U1
^ Computer UPD78043GF-
100-3B9
IC X24C00S
1C NJM7808FA(S)
IC NJM7908FA
IC NJM7806FA(S)
IC NJM78L05AT
Transistor DTC114TKT96 ! Built in Resistor
I
Transistor DTC143ES(4.7K'4.7K) Built in Resistor
Transistor DTA143ES(4.7K-4.7K) Built in Resistor
Transistor 2SB562(C)TF .
Diode 1SS270A TE
Diode 1SS270ATE |
Dioce 1SS270ATE
Chip (Cerarnici 0.0012 |iF/50 V
Chip (Ceramic) 0.0056 ¡iF/SOV
Chip (Ceramic) 0.0027 u.F/50 V
Chip (Ceram c) 150 pF/50 V
Chip (Ceram, c) 220 pF/50 V
Chip (Ceramic) 0.0012 pF/50 V
Chip (Ceramic) 0,01 pF/50 V
Chip (Ceram c) 100 pF/50 V (
Ceramic 390 pF/500 V i
Chip (Ceramic] 0,033 pF/25 V |
Chip (Ceramic) 0.022 pF/50 V 1
Chip (Ceramic) 0.0012 u.F/50 V j
Chip (Ceramic) 0.0G56 pF/50 V i
Chip (Cera Tiic) 0.0C27 pF/50 V i
Chip tCeramic) 1 50 pF/50 V
Chip iCeramic) 220 pF/50 V-^
Chip [Ceramic 0.0012 uF/50 У -|
Chip (Ceramic) 0,01 u.F/50 V !
Chip (Ceramic) 100 pF/50 V i
Ceramic ЗЭС pF/500V '
Chip (Cerarnici 0.033 uF/25 V (
Chip (Cerarnici 0.022 uF/50 У !
Chip (Ceramic) 0.047 uF/50 У
Chip (Ceran'ic) 10 pF/50 V
Chip (Ceramic) 0,0033 pF/'50 У i
Chip (Ceramic) 0.0033 uF/50 V ;
Chip (Cerarr ic) 0.01 uF/50 V i
Chip (Ceramic} 0.0082 |iF/50 V
Chip (Ce'ariic) 10 pF/50 V j
Chip (Ce'arriic) C.l jiF/50 V '
Chip (Ceramic) 0.001 uF/50 У
Chip {Ceramic) 0.001 uF/50 V
Chip (Ceramic) 0.001 pF/50 V
Chip (Ceramic) 0.01 uF/50 V
Chip (Cera.mi:) 0.001 uF/50 V
I Chip (Ceramic) 0.001 uF/50 V
j Cnip (Ceriimic i 0,058 uF/50V
: Chip iCeramic') 0.01 uF/50 У
1 Chip iCeram.iC) C.022 uF/25 V
j Chip iCera.micl 0 01 uF.'OO V
i Electrolvtic 1000 pF/25 V
Chip ■Ceramic) O.ODl pF/50 У
Chip (Ceramic) 0.C68 uF/50 V
Electrol\tic 1000 pF/25 V
Chip ;Cer smic) 0.068 uF/50 V
' Electralytic 2200 uF/25 V
I Electrolytic 4700 uF/6.3 V
; Chip (Ceramy) 0.C58 i.iF/50 V
Electrolytic 470 uE/50 V
■ Chip (Ceram:) 0.068 uF/50 V
j Chip (Cetamie) 0,001 uF/50 У
I Chip iCerarnic) 380 pF/50 V
I
Chip (Ceramm) 0 001 pF/50 V
I Chip iCeramic) 680 pF/50 V
МРХ Filter
Inductor 163JT
Inductor 8:¿2JT
HX Step up coi
MPX Filter
Inducto' 153JT
Inducto' 822JT
HX Step u|) coil
OSC Coil j
Remarks
CC73SL-H122JT
CK73B1H562KT
CK73B1H272KT
CC73SL1H151JT
CC73SL1H221JT
CK73B1H122KT
CK73B1H103KT i
CC73SL1H101JT I
Power Switch
7P TBG Connector Base
2P VH Connector Base
Ceramic Capacitorff.Ci‘uF/400VAC
Cord Bush ' ; ' ' iXt} i
AC Cord With Connector-M;
AC Coni Wilh Connector’.^AC Cord With Connector'^'j
AC Cord Wi»h Connector, **
Power Transforncr r }■
Power Trans .
P.jwer Tr.i'is'oinor ‘
Fuso 10 25'A
I Fuse Holder . - " 3^-^
j Voltage Selecioi (D)
and/or shading have special characteristics important
For AC Core
CK45f2GAC103MC
USA Canada^’r";
Multi-Voltage '
I Multi-Voltage Only
I Multi-Voltage Only
|MiHl^Voltage Only
IDLER
REEL MOTOR
CHASSIS BASE
REEL BASE
SCREW 2.6 X 6.4 ZN
WASHER 1.7 X 0.25T
POLY WASHER 2.1 X 0.25T
HEAD BASE
HB SPRING
HEAD SPACER
ERASE HEAD
R/P HEAD
SPRING
MAIN MOTOR
CONTROL P.W.B. Ass'y
REEL SENSOR (GP2S04B)
PUSH SWITCH
EJECT PROTECT ARM
CASSETTE SPRING
PLAY ARM
CAM GEAR (3R)
REC. SENSOR LEVER
PACK SENSOR LEVER
METAL SENSOR LEVER
MAIN BELT
POLY WASHER 2.6 X 0.25T
POLY WASHER 2.6 X 0.5T
EJECT PROTECT SPRING
SLIDE SPRING
FLYWHEEL Ass'y
PINCH ROLLER Ass'y (R)
SCREW 2.6 X 5 ZN
SCREW WITH STEP (7.7)
E RING
WAVE SCREW 3 X 8 ZN
SOLENOID
IRON CORE
PLUNGER
ERASE HEAD CORD
R/P HEAD CORD
2 X 9F LOCK SCREW
HOLDER CUSHION
• Parts marked with ^ and/or shading have special characteristics important
to safety.
Be sure to use the specified parts for replacement.
503 1079 005CUSHION2
501 1853 005
511 2682 007INST. MANUAL (5)1
203 2360 0042P PIN CORD2
CARTON CASE1
CARTON CASEU.K.1
REMOTE UNIT (RC^I)1
3P MINI PLUG CORD1
PAD ASS'Y
U.K. Only
PACKING & ACCESSORIES
1
1
17
lUN- 73GHI
ì P.W. BOARD OF GU-2778 AUDIO/METER UNIT
D
18
P.W. BOARD OF 3U-2603 POWER SUPPLY UNIT
IDN-730RI
Remarks
1. The following table shows the power circuit parts used for the 3U-2603 board by area.
2. Parts used are marked O, parts not used —.
Ref.No.
Areas
Europe (E2)
U.K. (EK)
Multi-Voltage (E1)
U.S.A. & Canada (E3)
Power T rans
part No.
2335985005
2335760000
2335758009
Voltage
Selector
--
—-
O
-
FUSE
F901
O
-
JV901
o
o
--
o
JV904 JV905 JV908
JV903
--
o
-
o
O
-
-
o
-
-
--
-
-
O
19
IDN-TSORI
SEMICONDUCTORS
• 1C
M15218AP
|.iPC4570C
TL4558
3 GND
2 INPUT
1 OUTPUT
• NJM7908
3 INPUT
2 GND
1 OUTPUT
• NJM7808
• NJM7806
20
/LtPC1330HA
^ 2
Q P,
<
g
H
fO ro_
с
<<O
M O
<
O
X
O
Z
о
< с
< N Н
Г О -, —
СЛ СЛ
J3 СЛ
w M
X X X X I
rsi N fSI N1 NJ
СЛ СЛ (Л СЛ СЛ
<D 0> 0> 05
Ш 9 ro n О
NJ CO
X X X X
N1 N1 N rsl
СЛ СЛ (/) СЛ
CO Ю -»
ro Ш ^
PO M ^
• •
о о
H -I
n о
11
m <
о
5’
Q.
(D
(Л
со PO —‘
О ГО
О ш
— v>
Q)
3
3
w
rô
O
-Ч
t/l
t
О Q
Н Н
> >
1
• • • •
о о о о
н н н н
о о о о
^ ^ PO PO
''Р
• •
О о
-I н
о о
со -с>.
7^ X
5
1
■:5
гЛ
со 4^ .1^
m m >< m
(Л (/> (Л (Л
O
—<
O
'^O
СЛ СЛ
O ro
^ en
05 05
00 M
ri
00
c
g
>
O
J3
>
L .J
□
Z
I
\l
Cjü
□
I
I
IDN-yaORI
WIRING DIAGRAM
LINE IN
LINE OUT
GU-2778-1
AUDIO P.W.B
JK301
GU-2778-3
HEADPHONE P.W.B
JK302
PHONES
JACK
O c c i S
R a: u o (0 5
9 £ _/ o: □ o ^
Q i O O < “ ^
>zO's\iuQ:a:_
K>o(L<<x>>a:
Q®(5X^>SX6X5®®®(»^^ —
_J Lii
< 2 _l
2 O <
or q: h
O Z u
z o 2
GU-2778-2
CONTROL P.W.B
o o
N. lU
CD QL
(/}
^LU
O (~
cg o
S 2 2
O < lU
N CD q:
CN122
r
_____________
W122
z o X ^ o r?
LU LU
-J -I
o o
(0 (0
3U-2603
POWER SUPPLY P.W.B
1
0
22
SCHEMATIC DIAGRAM
IDN-yaORI
Note: • Resistance shall bp 1/4 W unless othen/vise specified and
the unit is ohm.
• The unit of capacitor is pF, P is pF unless otherwise speci
fied.
• This circuit diagram shows the basic circuit It is subject to
change for the purpose of improvement.
Parts marked with this symbol A M have critical characteristics.
Use ONLY replacement parts recommended by the manufacturer.
23
□N-730RI
DENON
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