Pioneer CT-W205R User manual

Service
ORDER NO.
RRV1540
STEREO DOUBLE CASSETTE DECK
CT-W205R
THIS MANUAL IS APPLICABLE TO THE FOLLOWING MODEL(S) AND TYPE(S).
Type Power Requirement Remarks
CT-W205R
cs
Pv [ Oo | AC230-240V
[uv | oO | AC220-230V
LS ser]
Pp Oo
es)
SDXJ AC110V/120-127V/220V/230-240V With voltage selector
AC110V/120-127V/220V/230-240V With voltage selector
CONTENTS
1. SAFETY INFORMATION........... ccc eee reece neeee 2
2. EXPLODED VIEWS, PACKING AND PARTS LIST...... 3
3. BLOCK DIAGRAM ....... cece cee cneseesecensesteneeeecneees 10
As TEST: MODE wiiessccn dietitian tier Gael vpliedledesice 11
5. ADJUSTMENTS. ..00 cece cece ene ceereneetaetteseereee 12
6. SCHEMATIC DIAGRAMS .... cece eceeteeeetetees 19
7. PCB CONNECTION DIAGRAM ........0..eceseseeeereees 23
B..-PCB.PARTS LIST. .e.cctccvestesssteseesoeciesvsdesisieed ude dcescs 26
9. IC INFORMATION uu... ccc cee ce eceereeeeeeeeeenaetes 29
10. PANEL FACILITIES... cecccesesseseseseseeeeeseesetaetene 31
11. SPECIFICATIONS oc cccctcccciseatissccsssecesecninedeedetitecieeet 32
PIONEER ELECTRONIC CORPORATION 4-1, Meguro 1-Chome, Meguro-ku, Tokyo 153, Japan
PIONEER ELECTRONICS SERVICE, INC. P.O. Box 1760, Long Beach, CA 90801-1760, U.S. A.
PIONEER ELECTRONIC (EUROPE) N.V. Haven 1087 Keetberglaan 1, 9120 Melsele, Belgium
PIONEER ELECTRONICS ASIACENTRE PTE. LTD. 501 Orchard Road, #10-00 Lane Crawford Place, Singapore 0923
© PIONEER ELECTRONIC CORPORATION 1996 T-SSG APR. 1996 Printed in Japan

CT-W205R
1. SAFETY INFORMATION
This service manual Is intended for quallfled service techniclans; It Ils not meant for the casual
do-it-yourselfer. Qualified techniclans have the necessary test equipment and tools, and have been
trained to properly and safely repalr complex products such as those covered by this manual.
Improperly performed repairs can adversely affect the safety and reliability of the product and may void
the warranty. If you are not qualified to perform the repair of this product properly and safely, you should
not risk trying to do so and refer the repair to a qualified service technician.
WARNING
Lead In solder used In this product Is listed by the Callfornla Health and Welfare agency as a known reproductive toxicant which
may cauae birth defects or other reproductive harm (California Health & Safety Code, Section 25249.5).
When servicing or handling circuit boards and other components which contain lead In solder, avoid unprotected skin contact with
the solder. Also, when soldering do not inhale any smoke or fumes produced.
NOTICE
(FOR CANADIAN MODEL ONLY)
Fuse symbols -§&—+ (fast operating fuse) and/or -§E—# (slow operating fuse) on PCB indicate that replacement parts
must be of identical designation.
REMARQUE
(POUR MODELE CANADIEN SEULEMENT)
Les symboles de fusible -§E—4 (fusible de type rapide) evou -§e—# (fusible de type lent) sur CCI indiquent que les
pidces de remplacement doivent avoir la méme désignation.
(FOR USA MODEL ONLY)
1.SAFETY PRECAUTIONS
The following check should be performed for the
continued protection of the customer and service
technician.
LEAKAGE CURRENT CHECK
Measure leakage current to a known earth ground
(water pipe, conduit, etc.) by connecting a leakage
current tester such as Simpson Model 229-2 or
equivalent between the earth ground and all exposed
metal parts of the appliance (input/output terminals,
screwheads, metal overlays, control shaft, etc.). Plug
the AC line cord of the appliance directly into a 120V
AC 60Hz outlet and turn the AC power switch on. Any
current measured must not exceed 0.5mA.
Reading should
Uaakage not be above
0.5mA
Test all
exposed metal
surfaces
S32
© Also test with
plug reversed
(Using AC adapter
plug as required)
Earth
ground
AC Leakage Test
ANY MEASUREMENTS NOT WITHIN THE LIMITS
OUTLINED ABOVE ARE INDICATIVE OF A PO-
TENTIAL SHOCK HAZARD AND MUST BE COR-
RECTED BEFORE RETURNING THE APPLIANCE TO
THE CUSTOMER.
2.PRODUCT SAFETY NOTICE
Many electrical and mechanical parts in the appli-
ance have special safety related characteristics. These
are often not evident from visual inspection nor the
protection afforded by them necessarily can be ob-
tained
by
using
replacement
components
rated
for
vol-
tage, wattage, etc. Replacement parts which have
these
special
safety
characteristics
are
identified
in
this Service Manual.
Electrical
components
having
such
features
are
identified by marking witha A on the schematics and
on the parts list in this Service Manual.
The use of a substitute replacement component which
dose not have the same safety characteristics as the
PIONEER recommended replacement one, shown in
the parts list in this Service Manual, may create shock,
fire, or other hazards.
Product
Safety
is
continuously
under
review
and
new
instructions
are
issued
from
time
to
time.
For
the
latest
information,
always
consult
the
current
PIONEER
Service
Manual.
A
subscription
to,
or
ad-
ditional
copies
of,
PIONEER
Service
Manual
may
be
obtained
at
a
nominal
charge
from
PIONEER.

CT-W205R
2. EXPLODED VIEWS, PACKING AND PARTS LIST
NOTES:
® Parts marked by “NSP” are generally unavailable because they are not in our Master Spare Parts List.
© The A mark found on some component parts indicates the importance of the safety factor of the parts. Therefore, when replacing, be sure
to use parts of identical designation.
© Parts marked by “©” are not always kept in stock. Their delivery time may be longer than usual or they may be unavailable.
1. EXTERIOR AND PACKING
@ CONTRAST OF KUXJ, KCXJ, HVXJ, HYXJ, HPWXJ, SDXJ AND SLXJ TYPES
KUXJ, KCXJ, HVXJ, HYXJ, HPWXJ, SDXJ and SLXJ types have the same construction except for the following:
Part No.
Symbol & Description Remarks
Main Unit RAWZ3930 | AWZ3930 | RWZ3727 | RWZ3727 | RWZ3952 | RWZ3728 | AWZ3728
SUB Unit AWZ3931 RW2Z3931 | RWZ3729 | RWZ3729 | RWZ3953 | AWZ3730 | RWZ3730
Transtormer 2 Unit AWZ3872 | RWZ3872 | RWZ3772 | RW2Z3772 | RWZ3954 | RAWZ3954 | RWZ3954
Strain Reliet CM-22C CM-22C CM-22B CM-22B CM-22B CM-22B CM-22B
Fuse (FU1, FU2, 1.25A) REK1076 | REK1076 | Not used Not used Not used Not used Not used
v
Fuse (FU1, FU2, T1.25A) Not used Notused | REK1023 | REK1023 | REK1023 | REK1023 | REK1023
AC Power Cord PDG1015 | PDG1015 | PDG1055 | PDG1043 | ADG1159 | ADG1157 | PDG1043
Power Transformer (AC 120V) RTT1311 RTT1311 Not used Not used Not used Not used Not used
Power Transformer Not used Not used RTT1312 RTT1312 RTT1312 Not used Not used
(AC220-230V/230-240V)
Power Transformer Not used Not used Not used Not used Not used RATT1313 RTT1313
(AC110/120—127/220/230-240V)
> PPPRP PRG
Rubber Sheet AEB1111 AEB1111 Not used Not used AEB1111 AEB1111 AEB1111
Foot Assy AEC1531 | AEC1531 Not used Notused | AEC1531 AEC1531 | AEC1531
Power Knob RAC1863 | RAC1883 | RAC2110 | RAC2110 | RAC1883 | RAC1883 | RAC1883
Front Panel RAH2704 RAH2704 RAH2703 RAH2703 RAH2704 RAH2704 RAH2704
Rear Panel RNA2050 | RANA2050 | RNA2053 RNA2049 RNA2053 RNA2051 RNA2052
Operating Instructions (English) | RRB1169 | RAB1169 | RAB1169 | Notused | RRB1169 | Notused Not used
Operating Instructions (French) Notused | ARD1186 | Not used Not used Not used Not used Not used
Operating Instructions Not used Notused | Notused | ARE1131 Not used Not used Not used
(Dutch/Italian/German/Swedish/
Spanish/Portuguese)
Operating Instructions Not used Not used Notused | RARE1132 | Not used Not used Not used
(English/French)
Operating Instructions Not used Not used Not used Not used Not used ARE1130 | RRE1130
(English/Spanish/Chinese)
Packing Case RHG1717 | RHG1717 | AHG1758 | RHG1716 | RHG1719 | AHG1718 | RHG1718
65 Label ORW1069 | ORW1069 | Noi used Noi used Not used Not used Not used
Fuse Caution Label RRW-111 RRW-111 Noi used Noi used Not used Not used Not used
Transformer 1 PCB FANZ3046 RNZ3046 FANZ3041 RNZ3041 RNZ3041 Not used Not used
Transformer 1 Unit Not used Not used Noi used Not used Not used RW2Z3731 | AWZ3731
Line Voltage Selector Not used Not used Not used Not used Not used RASB1022 | RSB1022
(AC1 10/120—127/220/230-240V)
Insulator (Foot) Not used Notused | PNW1912 | PNW1912 | Not used Not used Not used
LED Lens Cover Not used Not used RNK2206 | RNK2206 Not used Not used Not used
Vinyl bag (115 x 270 x 0.05) Not used Not used Z21-013 Noi used Not used Not used Not used
Spacer A Not used Notused | RHC1032 | Notused | RHC1032 | Notused Not used
Spacer B Not used Notused | RHC1033 | Notused | AHC1033 Not used Not used
Caution Card Not used Not used | RRAN1001 Not used Not used Not used Not used
Caution 220V label Not used Not used Noi used Not used Not used ARR1003 | ARR1003
Fuse (T5A) Not used Not used PEK1003 Not used Noi used Not used Not used

CT-W205R
© Parts List for KUXJ type
Mark No. Description Parts No. Mark No. Description Parts No.
1 Main Unit RWZ3930 51 65 Label ORW1069
2 Sub Unit RWZ3931 52 Meter Panel RAH2702
ee a 53 Slide Knob REA1078
NSP 4 Transformer 2 Unit RW2Z3872 54 Screw BSZ26P120FMC
5 Strain Relief CM-22C 55 Bonnet REA1077
A 6 Fuse (FU1, FU2, 1.25A) REK1076 56 LED holder RNK2194
A 7 AC Power Cord PDG1015 hy
8 Lead Card 18P RDD1355 58 Knob spacer REC1195
A 9 Power Transformer RTT1311 59 --- ee
10 1 Mechanism Unit RYM1237 60 Eject Collar RLA1283
11. 2 Mechanism Unit RYM1238 61 ------
12 Rubber Sheet AEB1111 NSP 62 Earth Lead Unit DEO15VFO
13. Foot Assy AEC1531 NSP 63 Fuse Caution Label RRW-111
14 Eject Spring L RBH1379 NSP 64 Transformer 1 PCB RNZ3046
15 Door Spring L RBH1304 65 +e eee
16 Door Spring R RBH1305 66 «--ee:
17. Half Pressure Spring RBK1004 67 eee
18 Eject SpringR RBH1380 NSP 68 PCB Spacer PNY -404
19 Damper Assy REC1267 NSP 69 Chassis RNB1100
NSP 20 Cord clamper RNH1005 70 Connector Assy 3P RKP1678
21 eee ees 71 ~~ Connector Assy 5P RKP1677
220 eee NSP 72 ~+Binder ZCA-T18S
23. - Eject Lever L RNK2203 73 Eject LeverR RNK2202
24 Cord Clamper RNH-184
25 Balance Knob RAC1705 Packing
26 Eject Konb L RAC1881
27 Eject Konb R RAC1882 EN ep On) ; 39
28 Power Knob RAC1883 78 79 (HVXJ and HPWXJ t
29 Control Knob RACI919 eres upes.anhy)
30 REC KnobB RAC1788
31 Meter Lens RAH2705 es
32 Front Panel RAH2704
33 Door Pocket L RAH2690
Mie ae
HPWX4J types only) BO (HVXJ and HPWX4J types only)
36 Name Plate RAM1007 81 (HVXJ type only)
37 Remain Display Paper REE-113
38 Rear Panel RNA2050 42
39 Connection Cord with PDE1267 43
Mini Plug 44
40 Connection Cord Assy RDE1036
41 Getter (PVC) RAX1051
42 Operating Instructions RRB1169
(English)
43 Pad RHA1115
44 PadR RHA1116
45 Packing Case RHG1717
46 Sheet Z23-007
47 LED Lens PNW2019 40 39 4645
48 Screw BBZ30P060FMC
49 Screw BBZ30PO080FZK
50 Screw 1BZ30P150FCC CB
Zz 82 (SDXJ and SLXJ types only)
42
2%
Except
HPWXJ
and
HVXJ
types

CT-W205R
oOo
-—
(9)
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fo)
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esa
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177)
Z
\
HVXJ and HYXJ types only
een a
Except HVXJ and HYXJ types
>»
7
“ “
aoe
HVXJ and HY
types only
51
Exterior

CT-W205R
2. 1 MECHANISM UNIT AND 2 MECHANISM UNIT
2 MECHANISM
UNIT ONLY
2 MECHANISM UNIT

CT-W205R
Parts List
Mark No. Description Part No. Mark No. Description Part No.
1 PLUNGER RLA1288 51 STOP RING YE15FUC
2 PCB CONTROL BLK RXA1623 52 SPRING INTERLOCK L_ RBH1385
(1 MECHANISM UNIT) (2 MECHANISM UNIT ONLY)
3 PUSH SWITCH RSG1018 53. ARM INTERLOCK L RNE1780
4 SPLF RSN1023 (2 MECHANISM UNIT ONLY)
5 PHOTO-TRANSISTOR — SPI133534FG 54 PCB CONTROL BLK RXA1733
(2 MECHANISM UNIT)
6 MTR MAIN BLK RXM1081 55 PLATE HD BLK RXA1683
7 SOLENOID BLK RXP1021 (2 MECHANISM UNIT)
8 SPRING INTERLOCK R- RBH1386
9 ARM INTERLOCK R RNE1781
10 CHASSIS BASE BLK RXA1626
J1 SPRING BRAKE RBH1387
12 MAIN BELT REB1157
13. F/R BELT REB1254
14. LEVER BRAKE RNK2071
15 F/W ASSY RXA1295
16 PINCH ROLLER BLK R_ RXA1628
17 PINCH ROLLER BLK L_ RXA1629
18 CLUTCH BLK ASSY RXA1631
19 SCREW RBA1120
20 WASHER W41D065D025
21 SPRING REEL (L) RBH1388
22 SPRING REEL (R) RBH1389
23 CAM SPRING RBH1393
Vy
25 LEVER F/R RNE1782
26 REEL FEATHER RNK2072
27 REEL BASE RNK2073
28 PLAY GEAR (A) RNK2074
29. FF GEAR (A) RNK2075
30 F/R PULLEY RNK2076
31 CLUTCH BLK ASSY RXA1632
32 WASHER WA17D040D025
33 wees
34 SCREW PCZ20P040F MC
35 SCREW PMZ20PO60FMC
36 SPRING HB RBH1390
37 HEAD BASE RNE1783
38 PLATE HD BLK RXA1682
(1 MECHANISM UNIT)
39 anne :
40 SCREW RBA1121
Al seeeee
42 SPRING ARM PLAY RBH1392
cS
44 PLATE SLIDE RNE1785
45 CAM GEAR RNK2078
46 ARM PLAY RNK2079
47 SPRING CASSETTE RNE1786
48 SCREW BMZ26P040FZK
49 WASHER WA26D045D025
50 WASHER WA26D047D050

CT-W205R
BLOCK DIAGRAM
3.
XdN
SLAW
F
:
SNIN4
8
z
440/NO
2
oa
Yamod
2
=
(O4OL=14)
SO@9SLVXD
LNO
3NI1(O
AW
WwW
ee!
OT
97g
AG
lod
ISO
ZHASOL
QVAH
3Svye4a
1snfpy
3
LAW
ALAW
svl@
o3uy
934
dw
dVyL
oa
934
SsvI@
YA
LAGNI
N]
dV3H
ANI
p—
+
o3u/ad
WSINVHO3W
I
WSINVHO3SW
I
HOLIMS
33u/8d
HOLIMS
"ec7tezL
a,
daSLLLvxo
eo
dvai
“<p
wes
|
SUK
asnfpy
.
<
“oat
dy
ad
Perea
“AW
ad
10

CT-W205R
4. TEST MODE
4.1 Entering the Test Mode
STOP Mode
® Press the STOP key of deck I, MUTE, and PAUSE keys of deck II simultaneously to enter the test mode.
4.2 Exiting the Test Mode
© Press the STOP keys of deck 1 and deck 2 together. (Because the RESET key is not provided for this unit)
® Inputting the STANDBY Key (If the STANDBY key is available)
® Power OFF
The test mode can be exited by any one of the above.
4.3 Main Test Mode Items
@ SW Check
4.3.1 SW Operation Check
SW operations are as follows in the test mode.
-oo goes off All keys except « In this mode, the mechanism operates without the half.
REWIND
AUTO PLAY ¢ SW check
When the switch is pressed, the level meter lights up or blinks as shown in Table 1, enabling
switch operations to be checked.
Table 1
When the REV mode is
sel to
= : Blinks quickly
© : Blinks slowly
When DOLBY NR is set to Lights up when the half | Lights up when the CrO2
B : Blinks quickly switch of deck I is{ switch of deck I is
C : Blinks slowly pressed, pressed.
Lights up when forward | Lights up when the metal | Lights up when the half | Lights up when the CrO2 | Lights up when reverse
recording inhibit switch | switch of deck II is | switch of deck II is} switch of deck II is| recording inhibit switch
of deck II is pressed. pressed. pressed. pressed. of deck II is pressed.
4.3.2 x2 Speed Check
In the test mode, play the unit and complete assist operations (to stabilize mechanism operations), and then press ff or rew to set
x2 speed play.
Press PLAY again to set normal speed play.
11

CT-W205R
5. ADJUSTMENTS (a+)
1. MECHANICAL ADJUSTMENT (i#ti8%o8®)
1.1 Door Damping Check and Adjustment (k7 #> 7i##8# + UEB®)
DECK |
Within
15mm
F
DECK II
DECK Il
Within
Va
;
ae)
Position (A)
DECK | and DECK II
1.2 Tape Speed Adjustment (+-72'- Fia®)
TEST MODE: ON
DECK II
REC MUTE PAUSE
POWER
ON
Press
together
TEST MODE: DOUBLE SPEED PLAY
PP or dd > or dq
»
Normal
speed
PLAY
Double
speed
PLAY
Normal
speed
PLAY
TEST MODE: STOP ~ CANCEL
STOP
> or
POWER OFF
LED display example.
DECK II
STOP STOP
+
> Normal Mode
Press together

(1) Double speed PLAY
(fERPLAY)
DECK |
* Test mode
* Test tape STD-301
or NCT-111
* Double speed PLAY
2
SIGE ORT MAIN UNIT
L ch (Cas as
Ach ©
Normal speed PLAY
(7EXRPLAY)
DECK |
* Test mode
* Test tape STD-301
or NCT-111
¢ Normal speed PLAY
LINE OUT
& VR851
MAIN UNIT
CT-W205R
6000Hz + 600Hz
Example
6050Hz
DECK Il
* Test mode
* Test tape STD-301
or NCT-111
¢ Double speed PLAY
‘2
Example
6050Hz
L 88888888 |
TPP OES OEE
Frequency counter
| 2080H2 +5Hz + 5Hz
Example
2982Hz
VR801
@ MAINUNIT
DECK Il
¢ Test mode
¢ Test tape STD-301
or NCT-111
* Normal speed PLAY
Example
2062Hz[+ 5H2|
_, [28988888]
& VRB52
Lech Cp Se eer QD]
Rch©
Frequency counter
13

CT-W205R
2. ELECTRICAL ADJUSTMENT (@2%0 8%)
Adjustment Conditions (a# (+) NOTE: This unit has an automatic tape selection feature.
1. The mechanical adjustments must be completed first.
(AA ROBEMSETLTTHAZLL, ) A-hF-FHUIY— PMTCT
2. The head must be cleaned and demagnetized.
(Nv FOV ¢ HATTON TRAT LE, )
3. Turn power on allow the deck to warm up for at least a few min- Dolby noise reduction and HX Pro headroom extension
utes before commencing any electrical adjustments. manufactured under licanse from Dolby Laboratories Licens-
(ABO, ty MERZ OY Y7tSCL. ) ing Corporation. HX Pro originated by Bang & Olufsen.
4. The reference signal is 0 dBV=1Vmmns. “DOLBY”, the double-D symbol and “HX PRO” are
(EEL Nid, OABV=1Vimst $4, ) trademarks of Dolby Laboratories Licensing Corporation.
5. Connect a 10 kQ load resistance to the OUTPUT terminals.
74> =10kQ® TU FRA °
(PERRET DOANE RMS Pe) KME-S 4 XU F945 > RU HX PRON y FI AL IAF YE Yaris k
6. Unless otherwise specified, the switches listed below are left in WE-SKS RU -RS4 HL YL IA-KL —Y aL PS ORMMICES EW
the positions indicated. WAN TUT. HX PROW NL IPL KALI EL OSETH,
(EILESE O %V0.4BS 14 & TDOLBY NRA f y FOFFE TS, ) Ful E — DOLBY, ¥ FL DEE 8B BUHX PROS FVE- SKF bU-AST ty
DOLBY NR : OFF YY IA—-KL-LVsar-OMIECT.
TAPE SELECTOR : NORM
* As the reference recording level is 250 nwb/m for STD-331E, *® STD-331Eit, RBREL 1 4'250nwb/mt 4o THN, STD-331B
the recording level will be higher by 4 dB for STD-331B (160 (160nwb/m) i#f LT. 4dBEREL LATE Co TET . aMEB FI Ie
nwb/m). When adjusting, pay carefull attention to the type of — 7 ORBIT TERL TRS,
tape used.
odB 30s
OdB : 315Hz, 250nwb/m
Fig. 1 Test tape STD-331E
DECK
|
PLAY
BACK
REV azimuth asjustment screw FWD azimath adjustment screw
DECK Il RECORDING
REV azimuth asjusiment screw FWD azimath adjustment screw
Fig.2 Head azimuth adjustment Fig.3 Frequency response zone
14

JIGS AND MEASURING INSTRUMENTS
Test tape (STD-331E) Test tape (STD-631 or STD-632)
(Normal blank tape)
©) Screwdriver (medium)
© Screwdriver (small)
@) Screwdriver (large) Dual-trace oscilloscope
AC millivoltmeter Low-frequency oscillator
VR301
zy A339
TRI
£ paso
Vv
R302 po
BI UE Ss aLRR)
Test tape (STD-622)
(CrOz blank tape)
© Precise screwdriver
o 18888888s
Frequency counter
LO0'0%,
Attenuator
P. BLEVEL
Leh Leh Ach Ach
VR101 VR102
VR103 VR104
BIAS Adj.
SPEED Adj
Xo xy | VRaot SQ) vaeoe
VR851
x1
©@®)®@ veese Lech Ach Se
R407
Fig.4 Adjustment points
CT-W205R
Test tape (STD-611)
(Metal blank tape)
@) Screwdriver (medium)
—dciwiD—
10kQ
Load resistance
15

CT-W205R
2.1 Playback Section (5 +%)
(1) Head Azimuth Adjustment (~ » Kass)
Mechanical
Center (FA)
|
Sis baa el
VR101, 102 DECK |
eS VR103, 104 DECK II
MAIN UNIT
* Test tape STD-331E
10kHz/-20dB
Maximum
Silicon
®:
DECK
II
FWD
PLAY
;
)
a
CD.
bond
®):
DECK
Il
REV
PLAY
vi
heauah
©
:
DECK
|
FWD
PLAY
Azimuth
screw
Pee
Sete
©
:
DECK
|
REV
PLAY
See
Fig.
2
LINE OUT
Lch ©)
Reh a: a1 _
Player
10kQ 10kQ
ASIA ELEN IE NEN CEM SET EEL
AC millivolt meter Oscilloscope
(2) Playback Level Adjustment (#4. ~11i8%)
* This adjustment determines the DOLBY NR level, and must be performed with great care.
(KVE-LAWREE GSK. MRCAIZE, )
*
Test
tape
STD-331E
@®VR103
(Lch)
|
-e.7aBv
|
VR104
(Ach)
oS
@® : DECK Il FWD PLAY ®VR101 (Leh) Leh. Ach
- DECK | FWD PLAY wieIOe (en)
MAIN UNIT
TP1
(Lch) ot fee Cer nd ? wy
TP2
—O-@-
hen
Rich es a)
(Reh)
MAIN UNIT
Pa
LL IR SHORE
soeanncosontocenede
AC millivolt meter Oscilloscope

CT-W205R
2.2 Recording Section (325%)
(4) Bias Osillator Adjustment (<4 7 2 sik ee MGA®)
*
Test
tape
STD-611
If
possible
Permit
of
frequency
range
«DECK
Il
REC
105kHz+0.3kHz
105kHz+
4.3
KHz
6
L402
|
i. MAIN UNIT
Player
LINE IN
TP11
© Lch Oe ene eeenecer GB] a fe 2. fe! fai 88 fs
© Rech MAIN UNIT
Frequency counter
(2) Recording Bias Adjustment (aa/\-1 7 228%)
INPUT VR
. S[® vA401 (ich)
DECK
Il
b
VR402
(Ach)
*
Test
tape
STD-631
MAIN
UNIT
or
STD-632
« REC/PAUSE
(315Hz)
Low
frequency
Attenuator
:
oscillator Secenncie an eae ee crcnnat aun ie accecncmnoncaeinae
315Hz or10kHz AC millivolt meter Oscilloscope

CT-W205R
(3)
Recording
Level
Adjustment
(saU-~
#882)
Gi
INPUT VR
DECK II
* DOLBY NR OFF
* Test tape STD-631
or
Low frequency _— Attenuator
oscillator
315Hz
DECK II
¢ DOLBY NR OFF
¢ Test tape STD-622
or
STD-611
* REC/PAUSE (315Hz)
Low
frequency
Attenuator
oscillator
315Hz
315Hz
Lch, Reh
VA301 (Lch)
VR302 (Ach)
MAIN UNIT
LINE IN
TP1
: pose) Lch (Loch) Ove peers
3
Fee eteR SCATTERED SELLE OCONEE
AC millivoit meter Oscilloscope
315Hz
(Metal)
-11.2dBV
+1.5dB
Lch, Reh
MAIN UNIT
millivolt meter Oscilloscope

6. SCHEMATIC
6.1
MAIN
UNIT
(1/2)
NOTE FOR SCHEMATIC DIAGRAMS (Type 6A}
1. When ordering service parts, be sure to refer to
“PARTS LIST of EXPLODED VIEWS” or “PCB
PARTS LIST™.
. Gince these are baste circults, some parts of them or the
values of some components may be changed for [mprove-
ment.
3. RESISTORS.
Uni k& kQ, M:M@, or © unless otherwise noted
Rated power: 1/4W, 1/6W, 1/8W, 1/10W unless otherwise
noted
Tolerance. (F}: 41%, (G), 42%, (K) £10%,(M) +20% or +5% un-
less otherwise noted.
4. CAPACITORS:
Unit p:pF or pF unless otherwise noted
Ratings, capacitor (pF )/ voltage (V) unless olherwese notad
Rated vollage SOV except for alectrolytic capacitors
6. COILS;
Unit, m:mH or pH untess otherwise noted,
6. VOLTAGE AND CURRENT:
or- Vv
DC voltage (V) in STOP mode unleés olherwike noted,
@ mA or — mA
OC currenl in STOP mode unless otherwise noted.
7 OTHERS:
= @ or @ : Adjusting pont
= <<): Measurement point
© The A mark found on soma component parts indicates the imn-
Portance of the salety factor of the parts, Therefore, when re-
Placing, be Gure lo use parte of identical designation
@. SCH—C ON THE GCHEMATIC DIAGRAM:
© SCH—O indicates the drawing number of the schematic dis-
gram (SCH alands for schematic diagram.)
8. SWITCHES (Underline indicates switch position):
SUB UNIT
81601 . POWEA (STANDBY a ON)
$1602 : COPY NORMAL
81609 : COPY HIGH
$1604 : DECK NMS 4
81608 : DECK NMS -
81606 : REWIND AUTO PLAY 2
81607 - DECK IMS -
$1609 m STOP?
$1610 ' O MUTE 2
S161) » FWD2
91612 : = AEV2
$1619 me FF 2
81614 = REW2
$1615 fl PAUSE
$1616 REWIND AUTO PLAY |
Siei?7, BSTOPI
Sl6ie @REC2
81619 =» FWOS
61620, a AEV!
8162) ee FFI
S81a22 == REW)
$1624 DECKIMS +
$1625 OLOBY NA (B-OFF-C)
$1626 © =/Dy¥cz> REV MODE,
(RELAW/SKIP)
tew
iH
ry
é
MAIN UNIT (1/2)
DIAGRAMS
MAIN UNIT(1/2)RWZ3727 > HYXJ, HVXJd
RWZ3728: SOXJ,SLXJ
RWZ3930 : KUXJ, KCXJ
RWZ3952: HPWXJ
1 MECHANISM
P.B EQ AMP
VA12
Note! ¥ | KUXJ, KCXJ, HPWXu,
a SDXJ,SLXJ types
za
UNIT (172) |
(RYM1237)
#2 HVXI,HYXU types
2SK373-GRYY
61
Qi °
C1B4'-- 33aP
2) Cisse
-—P,
— Ea 36 Q1e81 “s
o165 m] |om m
ekcks Aa) | a
i — ee 7 Cts) | 3 © © eve ia el i wo
TDEZOR PB EQ AMP
1c101
CXA1115BP
R106 330K
PB LEVEL ADJ.
I
PB LEVEL ADJ.
OTF1@67
17458
6201 82F203
i
(e121
6BOPr vB
DOLBY B/C NR
—7.2dBV
CT-W205R
r —
EEE a
CXA1568S
1¢201
i
2 MECHANISM
UNIT (173)
(RYM1236)
j--
! (eh
B38-PH-K-S Fi] i Sy.
xfoe ti Sez
ry i Oy
ge
Soe
gD
alk
Q162
2SK 373-GRA~V.
Di66. D164
KRA15218
10301 (172)
RTF1208
4.7K
RTF1102
R339
a, 1K 910
Azet
RCN128-A-T
3
iq Sh
w
a’
=
as
i
oc
ao
a
REC
LEVEL
ADJ.
GNDA
(REC)
8 g tx oY 65 ba
Nn on
NY
i
~
-x
Ox
.
16K
Que
38
eX
es
Sx
xB
lex
Mm
Be
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ee
R320
$3
<7
5
ssi
133
4
ne
tm
en
we
Ki
@
0035
“.
(Cy)
+
ro
7.8
3
m
mo
Da
a
i
A316
NS
0
|
yuo
Stg
st"
azep
.
my,
{.
erin
de
aged
al
al,
ao
@,
avi
o
k
c302
§
Shin
38
sem]
ces
i
ey
=
man
ess
spe
'royva
2
s’
ye
6°
'p
oT’?
Ens
2s
Sen
ae)
ale
we
ra
en
“e L3e2 csi4 tg ae R340
R362 Aa36
&
1OmH
81K
910
4.7758
av]
ca22
3
ne
RON1028-A-T
ATEIS
G2)
1309
(272)
Me
ve
ae
XRA15218 bd
REMI
R341
LC n_| 2 2
as
so |YF
GNDA
VA12
----
5
f.
105KHZ
vl
dss
|
|
gp
bie?
i
is
Os
ee
sas
|e Heap pad TRAE sé] 32-f, Rats
| 28S 8 3iz! 15
(a)
Cai
™
‘bk
(17
20F)
|
‘|
oO
®.
00627188
a
@ (PA) Pay 3
|
Rpg
1
059-
aie
vz
é
yy
26
|
KE45A—C1
|
B2B-PHK-S
RAO?
e
=
2
aK
Cy
i
(SS
2
MECHANISM
LaOt
8.
12eH
es
UNIT (273) LFAI21K AE a’
~ p
(RYM1236)
BIAS
OSC
rR
CH)
gn
___ BIAS
GNDA
(BIAS)
TO MAIN UNIT (272)
®
lame
YA704 (374)
TP1 cH
B vec/2
cy. OO. GRE AL
& O
EK: VA12
41K
D651 RESS
MRAI5216 a
10651 (172)
)
w
\
~
¢
°
338/6.3
BUFFER
VA12
GNDA
y
MRAIS216
n feyy'¢78" (172)
a8 §
MRAI5218
10781 (272)
I
I
INPUT VR
RCV1089
KA
vr 7ot (272)
VR7Q1 (172)
ACV1089
-——————_- -
(RL=1 00)
YA7ON (174)
RKB-B20
GNDA
(INPUT)
| SIGNAL ROUTE
I ©} = PLAYBACK SIGNAL
™ : RECORDING SIGNAL
MAIN UNIT (1/2)
YA7Q4 (274)
20

CT-W205R
6.2 MAIN (2/2), SUB AND TRANSFORMER 2 UNIT
[ MAIN UNIT(272)- RWZ3727: HVXU,HYX¥
RWZ3726 : SDXJ, SLXJ
RWZ3930 : KUXJ, KCXu
1 MECHANISM UNIT(2/2) |
(RYM1237) 1 MECHA DRIVER
Vpce CONTROL BLK RWZ3952 : HPWXJ '
RXA1623 = ee 5 aa ae Pee SE Le PS oh oe ee
G) 1 H =a
K 5 q H LML1 LMuz LML3 .ML4
' (3) (L-8) (L-3) (L-@) (L+3)
01518 01519 D1S20 01521
! +4 |
LMAt LMR2 LMAI Lua
(R-8) (R-3) (R-@) (A+3)
01515 b1is13 st D514
—
1c5e1 oO
PDS3S1A
R 2
PBNA
MGAN
Line Voltage Selection
pCOM
© OOOQOOo0OD)-—
CAN AAR
ns
8 e
Line voltage can be chaged by the following modification : Ir @ | 3 e| | 4 t
1, Disconnect the AC power cord. = BEY! Play rm
2 Remove the cover i RSNIO23 ea ' , oH re
3. Change the transformer wiring as follows. ie : cf pene BIee +1 pize? bie28 pisea')
BRS pow | |
Q1517 '
zaov_[ neo wine | GRAY WRE ee ves | as dees ee ere eee
[_2aov_[ cravwne | neowire | 22K RET 5 S 5 |
ss
GSH
RB12
-——(F
68K
|
5)
5
|
4, Stick a line vollage label on the rear panel. 1 q C) caer CN15@3. CN1501 Q1507 =) D154 01 508 = BY D1S83 DISe@2 |
[Penno. [ Deserption | | ates Q|[O Bee age age e age
1
~*}_{
a8
vcsVv
p2
||
|@/sLqe
ao
a
ao
ToT
oe
|
Laaxiez | 240v bet] HRA AV ES V havo ‘ WD [WO [QO 1@ © |
cfc only ] @} |@ |
2 MECHANISM UNIT(3/3). IIMECHA DRIVER } P NaLD2_1G)| |@4}SL0 H
favMizsey
|
We
NOt
agiay
Efauos
@|
|@}sv0
HVXJ,HYXJ,HPWXJ
PCB
CONTROL
BLK
|
|
XG
APWXI
only
1
yas
]
ie . ind mi bermmemtal se 7 2 5 Q Q
tails eden | pore cee ncnaee ; Wire i we Repiese (S aes is a: y © OT
by '
AC220~230/230~240V no | AXM1081 i (@ warts, A os2 [ad Pet] |Or-®
50/60Hz
ue
'
|
RSe7
66K
D
p
r____,_J559~>30v_
oe
1
(2)
@
“|
y
I
@
a
si6e25
9
oor
c
51626
Le
Pe
:
‘
@t
a
23
—)}
|@y"
=
—
1 . (3) y eines 2 RSH1041 »o wo ASH1041 4 9 vo
ays ae a |@ = Eps 1@ @ Sue ahs § S13
Posi0g3 frente | 2g 3 33 3
A uvxs | RTT1312 A! © x50 ene DS _16| | SL2 “zfs | “zt 5 3
Vc5v 2 | |
ote
|
POWER
TRANSFORMER
©)
ln
as
a
G3)
|€2
4 B47 Q 2
ADG
2
59
:
GQ)
503
mises
aeareTe
~
(3)
|@
peeponencren aus cee tt See td aETSy \
ee
ee
eg
©
7
nap
wr
Sn
3) (8
(3)
04.
66K
1D
K
0
(5
Ge
47 NOC wo
SOKJ SUX) ewer; | E © ene,
ee POWER TRANSFORMER | > < 9] |
TTRANSFORMER
ATT
is
3A
=
@
SR
2
Gis
' 1 UNIT [ceteieiciataieteiateted es + x (3 Canes
| 1 t oe UY vc5V GNDCS &
SDXJ,
SLXJ!
'
‘
'
RSNIO23
vest
3
SR
JACK
ho
AC110/1
20~1
27/220
/230~240V
H
"
|
O20PWY1315E
=
=
7
a
6S
50/60Hz
i
'
ae
Be
|
a
HYXJ,
HVXJ
only
VCSV
|
a
OR
: tp cee ea eee | oot 18. F ARs 533 | 3 ,
pees vel F ‘y N cer GFE | | thie |
. 1 22K ‘ Do =. dvr i)
SOXJ:ADGI eu rt + : i Ve ry’ R903 3 D905 1 |
104 :
A
SLX:
POG
Al|
8
|
ae
xo
“|
sp
TASeR
'
tt an Or “a AKN1 004
AC POWER CORD Ze | aee~240. ' dia F 3 ‘
| oe Ll te ee nt H | ae 6 GNDC ‘ | 01504, 1505, 1515, 1516, 1520, 1521 :MVR5074X-TS (REO)
pe ye D1501~1503, 1507-1510, 1512~1514.] »-MAY5074X-TS (ORG! :KUXU,KCXU,SDXJ,SLX
ae
GSH
;
|
1517~1513,
ieee
|
.MPG5SB74X-TS
(GARNI!
HVXd,
HYXJ
| p1si1 » SLR-342UCT31-TS (RED)! KUXY, KCXU, SDKY,
| TO MAIN UNIT(I2) | $1601~1607. 1609-1622, 1624 .RSG1034 at
H VA12 ve12 —- = S m a a
FU1001, FU1002 : |
vesV SUB UNIT
1.25A/125V — (REK 1876) KUXY, KCXY POWER SUPPLY }
t
T1.25AL250V (ek (925) Hui ah IMOTH E R UN I Ne | RWZ 3729 : Hyxu,HVxU
| Wink pee nab . :
su HYXJ,HVXJ) RWM1 8 7 3: Hyxs,Hvxs ; RWZ3 730 = soxu,Sixu
pe 5 NMTBIZFAT Z i) : | RWZ 3951 : wuxg, KCK
KUKU,
KC
KU:
See
UNIT
|
Sa
83"
Nae
|
RWM1
8
74:
spxs,suxu
+
RWZ395
3
:
Hewxs
eee NA NAS Fa acre k Sek Re eee 1 uv 1 9 em ——_ —_—- - - _—-
Act2eV
6eHZ
—BLK/WAT!
‘|
nnn
oe
;
ra GO
|
RMT
8
ZS:
RUR
KCK
Te
ne
a
ee
aE
or
wes
i) wo
$B ae ips |
NEWTRAL s+ of So | ache se RWM1 94 6:HPwxs 2SA1309A (R/S)
H
|
A
Futeee
on
58
&
&
|
XDA114ES
AC
POWER
CORD
7
||
:
a
|
A pogie15 / L ! rae | -) 25C3311A (R/S)
i
BER
H
JIQBIA
GSH
GNDA
NUM7EMOSFA
' Wh Haine , SRG ee DTAI14TS XOC124ES
'
{}
AKR10@4—A-T
!
;
:
2
9+
—
7,
NaF
tos n aa 8 - IRWZ 3772 SHYXU,MVXY| ' c1903 o A m/e eto 1
POWER TRANSFORMER inwz3672 :KUXJ,KCXJ ! ' 8 047 <$ 38 S38 ASSHE DTC114TS
: ! ' = 8 Sho a es ++ 188254
A artists RW2 3954: HPWXu, ‘ail 1 : oa og oi 8 so | ¢ Sacer
SOXUSL ! H
at : ' ; ag we x ¥3 1
1 ( Ne 35 52 6
| H t rr ee §5| Yl os anoe 12? |
H ' ve :
|
|
KUXd,KCXY,SDXY)!
ao
o1ees
a1e11
|
| i. SEXY HPWXd only; 188752 3430072 vcey
GSH 1
| MAIN UNIT (2/2),
MAIN UNIT (2/2), . 8 . SUB UNIT,
SUB UNIT, TRANSFORMER 2 UNIT
TRANSFORMER 2 UNIT
21

7. PCB CONNECTION DIAGRAM
NOTE FOR PCB DIAGRAMS:
1. Part numbers in PCB diagrams match those In the schematic
diagrams.
2. A comparison between the main parts of PCB and schematic
diagrams is shown below.
Di
ymbol in PCB | Symbol in Schematic Part Name
Diagrams iagrams
BCEBCE
Transistor
Transistor
with resistor
0oGsoOGS
Field effect
transistor
Resistor array
3- terminal
regulator
"Power Supply Section for HVXJ,HYXJ and!
HPWXJ Types!
| A POWER |
PO ANSrORMER
NEUTRAL
| HYXJ : PDG1043
HVXJ : PDG1055
| HPwxJ:A0DG1159
01510
01506 @1503 Sisb6
a1s0s 91511 gi513
a1so4 O15°7 aisi2
Q1501
Qi502 21508
| Power Supply Section for SDXJ and SLXJ Types. E.
|
TRANSFORMER
|
| LSAT TRANSTORMER I
| A\ VOLTAGE QA td9 TRANSFORMER _
SELECTOR Qr@SZNY Z
| he
| |
|
|
| I |
|
|
| I |
l
cat
tl
| ~~ RTT1313 |
|
SDXU: POGII57 |
| SLXJ PDG1043 |
iA .
|
: |
| AC110/120 - 127/220/230- 240V
atest Oe ee eighteen arenes aepmen ence, <adk ee nes Phen 2s
Ti
fans
ss
oa
Ga
ic
mec
ana
ce?
gah.
ap
aivaty
SoMa
Ee
ee
“
Power Supply Section for KUXJ and KCXJ Types. ]
TRANSFORMER 2 UNIT)
OA Id
A POWER
|
A TRANSFORMER |
AC POWER CORD «Le 4
PDG1015 r |
|
|
|
| l |
| Re anh |
RTT131
|
|
|
|
|
|
|
| NEUTRAL | |
! {au VE Wo
| a
| AC 120V 6OHz |
|
|
|
|
Q651
1c651
Q652
Q301
Q303
Q305
1€1001
1C301
1c1002
Q302
Q304
Q306
1c1003
Q1002
Q1001
Q1003
Q1004
1¢501
Q804
Q806
Q802
Q801
Q807
Q307
Q202
Q203
1c201
Q309
Q310
Q308
Q201
Q312
Q311
Q502
Q751
Q313
e This diagram is viewed from the mounted parts side.
Q702
Q7o1
Q103
Q104
1c701
Qio1
Q102
1c101
* The parts mounted on this PCB include all
necessary parts for several destinations.
For further information for respective destinations,
be sure to check with the schematic diagram.
MAIN UNIT
PO Cm OnO} O
ee) rae
RNP1662-B8
TO 2 MECHANISM TO 1 MECHANISM UNIT
UNIT(2/3)(E.HEAD)
(172)
(R/P
HEAD)
TO 2 MECHANISM UNIT
(1/3) (R/P HEAD)
TO 2 MECHANISM
UNIT (3/3)
TO
1 MECHANISM
UNIT (2/2)
VR701
CT-W205R
25

CT-W205R
8. PCB PARTS LIST
NOTES:
® Parts marked by “NSP” are generally unavailable because they are not in our Master Spare Parts List.
© The /\ mark found on some component parts indicates the importance of the safety factor of the part. Therefore, when replacing, be sure
to use parts of identical designation. :
® Parts marked by “@® ” are not always kept in stock. Their delivery time may be longer than usual or they may be unavailable.
© When ordering resistors, first convert resistance values into code form as shown in the following examples.
Ex.] When there are 2 effective digits (any digit apart from 0), such as 560 ohm and 47K ohm (tolerance is shown by J=5%, and
K=10%).
S60 LL O56 KX LOMO SG] vvvtetseseevvcsesnevensseseesnsaeseeceseeessessecensseeeeneanes RD1/4PU Si@ily
AT QL HAT KO OTB wertrtrecetcreeseer seen econ teneneaesentnensaneseesesseseeesenanes RD1v4PU AB)
1Q Sb] RO wiv cecddevecenavatianedacennedsvaussncdeusnensasscdssnntsavsdodavtesbvcreasssvnsucneres RSIP (URI) K
Ex.2 When there are 3 effective digits (such as in high precision metal film resistors).
5.62 KL > S62 X LO Me SOD] nsec ecece ete receeveceeeeneee tessa atesenenesersensereas RN1/4PC BIE) F
@ LIST OF WHOLE PCB ASSEMBLIES
mat | __reanmonnion [ocr ems] Was i ns [| sre [Soe A
MOTHER UNIT AWM 1875 | RWM1875| RWM1873 | RWM1873 | RWM1936 | RWM1874/ RWM1874
TRANSFORMER 2 UNIT RWZ3872 | RWZ3872 | RWZ3732 | RWZ3732 | RWZ3954 | RWZ3954} RWZ3954
MAIN UNIT RWZ3930 | RWZ3930 | RWZ3727 | RWZ3727 | RWZ3952 | RWZ3728| RWZ3728
SUB UNIT RWZ3931 | RWZ3931 | RWZ3729 | RWZ3729 | RWZ3953 | RWZ3730 | RWZ3730
TRANSFORMER 1 UNIT Not used | Not used | Not used | Notused | Notused | RWZ3731 | RWZ3731
@ CONTRAST OF PCB ASSEMBLIES
TRANSFORMER 2 UNIT
TRANSFORMER 2 UNIT has no service part.
MAIN UNIT
© Although RWZ3930, RWZ3952 and RWZ3728 are different in part number, they consist of the same components.
© RWZ3930 and RWZ3727 have the same construction except for the following:
Symbol & Description Remarks
| Rwz3930_ | RW23727
F101-F104, F203, F204 Not used DTF1067
$1001 Not used RSA-069
C221, C222 Not used CCCSL101J50
C714 Not used CCCSL470J50
C803, C854 Not used CCSQSL330J50
C1016, C1017 Not used CKCYF473Z50
R131-R134, R231, R232 RS1/10S000J Not Used
R506 Not Used RD1/6PM683J
R512 RD1/6PM683J Not Used
26