Kenwood KX-W6050 User manual

STEREO DOUBLE CASSETTE DECK
KX-W6050
SERVICE MANUAL
KENWOOD
©1992-12 PRINTED IN JAPAN
B51-4679-00(S) 4229
Cassette
lid
Panel
Mettalic
cabinet
Knob
(EJECT)
Dressing
plate
Cassette
lid
(A53-1383-14)
(A60-0325-02):
K,
P,
Y,
M, X
(A01-3018-01):
K,
P,
Y,
M,
X
(K29-3592-04)
|
(BO3-2806-03)
(A53-1383-14)
(A60-0367-02):
T,
E
{(A01-3031-01):
T,
E
oe
Cassette
holder
ass’y
Knob
(PLAY)
Dressing panel
Phone
jack
Knob
(PLAY)
Cassette
holder
ass’y
(A53-1384-03)
(K29-5626-03)
(A21-1824-03)
(E11-0208-05)
(K29-5626-03)
(A53-1386-03)
Knob
(REC
LEVEL,
REC
BALANCE)
(K29-5627-04)
Phono
jack
Miniature
phone jack
Slide
switch
(E63-007
1-05)
(E11-0188-05)
($31-2131-05)
D
e
7
2indeoid
|
Foot”
{JO2-)
Power cord bushing
(J42-0083-05)
AC power cord*
(E30-)
* Refer to part list on page 38.

KX-W6050
CONTENTS
ACCESSORIES
-avsiascitivih
tetettersntl
kl
ob
ed
tee
2
REGLAGES
isis
eee
i
ee
Oceana
26
CONTROL
AND
OPERATION
.........0cccccc
eee
cess
3
ABGEEBICH
2.
ccsc.
ceasstssesdetiacticeed
otcecbevteteacdewncctsbceseses
27
DISASSEMBLY
FOR REPAIR
..............::cceesceeeeees
4
WIRING
DIAGRAM
.........ccccc
ccc
ceeeeeeceeeseeennes
29
BLOCK
DIAGRAM
o...cccsssossssseessssssseserssssnsseeeeessseeee
6
PC
BOARD
ss.
Metta
isan
earers
31
CIRCUIT
DESCRIPTION
.....0..
cee
eee
cence
7
SCHEMATIC
DIAGRAM
..........ccccccccceeeeteeeseeeeeeee
33
TIMING
CHART
ou...
ecccccccccsccsscecsseecessecesesrenseenaes
15
EXPLODED
VIEW
ou...
..cccccecccesccesessececsessnseeneeseues
37
MECHANISM
DESCRIPTION
.............ccccceeeeseeeee
18
PARTS“
EIST
cavecds
Siececlcn
scot
he
avetceh
de
tants
Peck
lens
39
ADJUSTMENT
sicioiccitcslid
aicctenaaiiaseeaieecdesieeweteestes
25
SPECIFICATIONS.
0...
eeeeeeee
BACK
COVER
[
.
INSTRUCTION
MANUAL
Accessories
B60-1062-00
ENGLISH
B60-1063-00
FRENCH
P,E
Audio
cord
...........ce
2
System
control
cord......
1
B60-1064-00
CHINESE
M
(E30-0505-05)
(Except
for
U.K.
and
Europe)
B60-1065-00
SPANISH
M,
E
(E30-2733-05)
B60-1066-00
GERMANY,
DUTCH,
ITALY
E
ITEM
CARTON
CASE
H50-0512-04
K,
P,
Y,
M,
X,
E
H50-0563-04
T
POLYSTYRENE
FOAMED FIXTURE
H10-5101-12
le
K,
P,
Y,
M,
X,
E
H10-5102-12
R
K,
P,
Y,
M,
X,
E
H10-5420-02
t
T
AG
COPE
esses:
aris
pastenenes
1
AC plug
adaptor.
.
]
H10-5421-02
R
T
(Except for
some
areas.)
{Except
for
some
areas)
(The
shape
may
vary
de-
{E03-0115-05)
pending
on the
destination
area}
ss
4
CF
po
|

KX-W6050
CONTROL AND OPERATION
EJECT key EJECT key
STAND BY indicator
CCAD Olerstewa)
re com
ee aa aaa
Fast
reverse
Fast
forward
key
(<<)
Stop
key
®
Stop
key
(l]|
key
5)
Play
keys
[<)
,
>)
‘
Play
keys
[<,
(}
Fast
forward
key >>]
Fast
reverse
key [<<]
TIMER
switch
REC
LEVEL/REC
BAL.
(BALANCE)
knob
POWER
switch
DOLBY NR switch
INDEX SCAN
key
PHONES
jack
DIRECTION
switch
Connect
headphones
plug to
this
jack
DUBBING
keys
CCRS
keys
Cran
(aoa)
COUNTER
RESET
A/B
key
(
tice
(rise)
A
COUNTER
a
a
NOR. a
HIGH
NOR.
CCRS
oS
aIPAUSE @REC/ARM RELAY REC HPAUSE @REC/ARM
RELAY REC key

KX-W6050
DISASSEMBLY FOR REPAIR
*Take out the case beforehand.
Push
the
Eject
button,
and
when
the
cassette
holder
Te
and
have opened, push the two hooks @ of the right
left-hand
sides
with
a
square-bar
standard
sorewdriver
and
the
like
from
the
outer
side,
and
remove
the
lid.
2. Remove the screw @ of the lower part, undo the 5
claws, and remove the front panel.
3. Remove the 2 screws @ of the lower part, remove
the 6 screws @ of the rear side and remove the 4
screws @ of the transformer, undo the 2 claws @,
and remove the sub-panel ass’y to the front side.
:
x.
i
WA
§
=
VE
OX;
.
.
<e
AW
wes

KX-W6050
DISASSEMBLY FOR REPAIR
4. To remove the X28 (F/7) headphone jack, push the
2 claws @ with a square-bar standard screwdriver
and the like, and undo them.
5. Remove the knob @, undo the 6 claws, remove the
2 screws @, and then remove X28-(A/7), (B/7) and
(C/7) (G/7),
6. The mechanism ass’y comes off when the 8 screws
@ are removed.

KX-W6050
BLOCK DIAGRAM
18 ‘szo
62 ‘£20 Adit
1
rt
=
NOS,
:
1
A1ddNS
YINOd
Sa6
i)
i!
wa
1
svia-8
phy
>o-
0e
‘+20
-
HOLOW
|
zy
=
i
A@
ONVIS
re
ce
oy
:
7
ez
‘220
@
yoiow
|
>
y
4
gg
TAY,
Ay
ite
Vy
:
~
'
>
4
buggin
|
AIS+
Azl+
!
Rr
os
@
$v
yoiow
|
wy
|
690
Zol
'
(020)
©@
‘220
y
ae
=
‘
aeaeN
Hd
1!
'
Ssvia-v
{e491
(991)
Pa
ieee
eee
ote
.
!
9os0
svia
way
|
Atieov"
eso
(990)
1
Oa
4a:
:
I
vasna
[AS!*
;
———+
(850)
1
O11
WSILSAS
est
'
———>
(06
‘98
‘2S0)
I
|
1
:
\
7
>
(99
‘SE
“1G0)
1
vay
WOI-"
<
hee
I
—-»
(090)
I
[7
32
-
'
|
120
I
{950}
1
(aa
AO'EOY
4
|
}
2cl4ae
Z
a
a>
(22
420)
DO
eee
8
elo
:
|
>
(92
‘£20)
H
(£0)
+20
*
220
i
(160)
|
¥90
ozo
a
oo4y
vy
ooau
WIBA
[’
ZILA
(v2
‘©20)
|
way?
(22
120)
eS
*
ae
1
m
92
‘szo
Qa
<?
<
ee
$
HA
OS)
mn
|
et
(W31SA8)
ae
m
»
NI
i)
Oo
D
2D
zm
am
a)
DO
ers)
ol pox
rm
240
wagane.
|||
\t
Speteg
es
i
en
Pm
ze
F
a
a
oO
AWG
LL
:
saPo2-
=
9
£s0
=
oso
\/
2
x
<i
p=
z
9
ino
Add
,
a
=
,
Ee
=x
pa
=
504
bape
A
JJ)
]
"4
ees
ae
i
+
Z10
2
j20
4
120
sears
am
Q
610
HI
=®)
F
:
We
9)
ee
22.
¢@
a
9
ol
‘67
tso0
230
80
e-O
s
=
AWO6F
dH
SOP
p-
aL
ect
dvus
£9
"290
oS
“#s0
Hav
AGI+
dou-v
d/4-@
$90
990
9
‘SUA
“2Mh
Oud
@‘ZuA
ar
oO
D
7
fol
oO
0
2
gol
190
090 630
060 690
dua
a/an4tagi
ZHGIE

Parts Name
KX-W6050
CIRCUIT DESCRIPTION
Record playback amplifier unit (K28-249X-XX)
Use/Function
Operation/Condition
CXP82324-1260. MICRO PROCESSOR
TA8125S
P-B AMP
XRU4052B
P-B A/B SW
uPC1297CA
DOLBY-HXPRO IC
PST529D
RESET IC
XRA1781 2T +12V AVR
XRA17815T
HA1215NTA
+15V AVR
SYSTEM IC
NJM4565D-D or
| XRA15218-DX
INPUT BUFFER
2$D1302 (S, T)
PLAY OUT MUTING
2SC 1845 (F, E)
er oe
HEADPHONE AMP
CONTROLED BY O50 ON-MUTE
DTC124ES or
UN4212
HIGH-SPEED EQ SW ON-NOMAL SPEED
2SC 1845 (F, E)
28C1845 (F, E)
HX BIAS SW (A)
HX BIAS SW (B)
CONTROLED BY O87 ON- A REC
CONTROLED BY O88 ON- B REC
2SC1740 (Q, R) or
2S8C3311A (Q, R)
LEVEL AMP SW
CONTROLED BY Q50 ON-MUTE
Q19, 20
2S8D1302 (S, T)
REC MUTE
-+
CONTROLED BY Q84 ON- PLAY
| DTC124ES or _
UN4212
Q23, 24
DTC124ES OR
UN4212
REC A SW
REC B SW
B REC- ON
Q25, 26
2S$C1740S (Q, R),
28C3311A (Q, R)
REC MITE
A REC- OFF
Q27, 28
DTC1214ES or
UN4212
PB EQ 70x SW
70n PB- ON
Q29, 30
DTC124ES or
UN4212
120 » HIGH SPEED
+
A- 120 » HIGH SPEED DUB. ON
Q31, 32
DTC124ES or
UN4212
70 » HIGH SPEED
A- 70 » HIGH SPEED DUB. ON
Q50
DTA124ES or
UN4112
PB OUT MUTE DRIVER
CONTROLED BY IC1-76 PIN
Q51
DTC124ES or
UN4212
A HEAD R/P CONTROLE
CONTROLED BY IC1- 40 PIN,
A REC- ON
Q52
DTC124ES or
UN4212
B HEAD R/P CONTROLE
CONTROLED BY IC1- 44 PIN,
B REC- ON
Q53
DTC124ES or
UN4212
EQ SP- SW
HIGH SPEED DUB- ON
Q54, 55
25C1740S (Q, R) or
25C3311A (Q, R)
A-BIAS OSC
Q56
25C3940A (R, S)
A-BIAS CONTROLE
| CONTROLED BY 057
Q57
DTC143TS or
UN4216
A-BIAS ON-OFF SW
CONTROLED BY 058

KX-W6050
CIRCUIT DESCRIPTION
Use/Function
le Ref. No Parts Name © | _
058
|
Date
.
_|
A-BIAS
CONTROLE
a59
rea
ae
_
B-BIAS
CONTROLE
aso
|
STE
ES
0
B-BIAS CONTROLE
a61 | 28D1302 (S, T)
B- ‘BIAS ON- OFF SW
Q62, (63
2S$C2003 (L, K)
|
B- BIAS OSC —
' 2SC3940A (R, S)
064
Q65 UN4212
a2: UN4212 or _
B66 | DTC124ES
2SC1740S (Q, R) or
-28C3311A (Q, R)
2SC1740S (Q, R)
| 2SC3311A (Q, R)_
or
or
B- BIAS CONTROLE
_ B-BIAS CONTROLE
_B-BIAS CONTROLE
| GRID DRIVER
| GRID DRIVER
2SC3940A (Q, R)
' 2SC1740S (Q, R)
_ 2SC3311A (Q, R)_
28A1123 (R, S)
DTC124ES or
(072,78 | una2i2
DTC124ES or
Q73, 79 .UN4212
or
|
+5.6 Ms AVR
RESET
—23 Vv AVR
, A OR B CPM SW
A OR B SOL SW
2SA1534A (R, S)
Q76, 82
Q77, 83 | DTC124ES
DTA124ES or
UN4112
_2SA1534A iR, s)
2SA1309A (Q, R) or
| 2SA933S (Q,R)
| AOR B SOL SW
-AORBCSP SW
A OR B CPM SW
| AORBCSP SW
| REC MUTING DRIVER
| DTC124ES or
| UN4212 ;
DTC124ES or
UN4212 |
| A BIAS SELECT
| B BIAS. SELECT
| 2SA992 (F, E)
O87
. | DTC124ES or
ass — | UN4212 _
as9 2SA992 (F, E)
Se. DTC124ES or
Q90 — | UN4212 _
DTC124ES or
ooh | UN4a2120
DCTC143TS or
UN4216
{
1
| A BIAS CONTROLE
, A BIAS CONTROLE
B BIAS CONTROLE
PB °B A/B SW
A BIAS CONTROLE
| B 3 BIAS CONTROLE
a+.
— oP
—a—. |
CONTROLED BY IC 1- 43 PIN
| CONTROLED BY IC1- 42 PIN
CONTRTOLED BY Q65 B REC- OFF
. B REC- OFF
| CONTROLED BY IC1-
A REC- ON
| B REC- ON
| CONTROLED BY IC1
Operation/Condition
_ CONTROLED BY IC1- nd PIN
_ CONTROLED BY Q65—
B REC- ON
CONTROLED BY IC1- 19 PIN
CONTROLED BY IC1- 20 PIN
CONTROLED BY IC6
77 PIN
CONTROLED BY Q88
CONTROLED Bh: IC1- 40° PIN
_CONTROLED BY Q90—
| CONTROLED- BY IC1- 44 PIN:
- 37 PIN
CONTROLED BY Q58

KX-W6050
CIRCUIT DESCRIPTION
Description of Functions
Feature
(a) Recording system
*
Relay
recording,
W
reverse
(c)
DPSS
If decks A and B are loaded with a cassette, the di-
rection mode is — or, one deck is recording and
the other is in the REC PAUSE mode, and the re-
cording sources match, then, when the end of the
tape on the deck recording is reached, recording
continues automatically on the other deck.
Conditions:
1
Decks
A
and
B
are
both
loaded
with
a
cassette
that can be recorded on in the appropriate cur-
rent tape direction.
The reverse mode switch is set to or =>.
The recording source is the same for both decks.
Neither deck is in ARM. One deck records and
the other is stopped.
&WNP
Operation:
1 — mode (A to B only)
When the end of the tape of one side is reached
on the deck recording, the deck stops, and the
other deck starts recording automatically.
2 ~mode (A to B only)
When
the
end
of
the
tape
of
the
reverse
side
is
reached
on
the
deck
recording,
the
deck
stops,
and
the
other
deck
starts
recording
automati-
Cally.
(b) Relay play
If decks A and B are both loaded with a cassette,
and the direction mode is —or—>, then when the end
of the tape is reached on the deck playing, the other
deck starts playing automatically.
Conditions:
1 Decks A and B are both loaded with a cassette.
2 The reverse mode switchis setto or .
3 One deck plays normally, not with DPSS, and
the other is stopped.
Operation
1 = mode
When the end of the tape is reached on the deck
playing, the deck rewinds if it is playing in the
forward direction, and fast forwards if it is playing
in the reverse direction, and the other deck starts
playing automatically in the current tape direc-
tion.
2 —~mode
When
the
end
of
the
tape
of
the
reverse
side
is
reached
on
the
deck
playing,
the
deck
stops,
and
the
other
deck
starts
playing
in
the
forward
direction.
SKIP
selection,
single-tune
repeat,
autorecord
mute,
and
RE-REC
standby
operations
are
per-
formed
by
pressing
the
appropriate
keys.
(d) Timer operation
Timer recording and playback are possible by set-
ting the timer switch. When the timer switch has
been set to PLAY or REC and the power is switched
on, the desired operation takes places after an initial
delay (about four seconds). With timer recording,
“TUNER
PLAY”
28H
(serial
code)
is
output
about
1.5 seconds after the power comes on, and the
amplifier input selector is set to TUNER.
(e) Dubbing
Normal and high-speed dubbing from deck A to
deck B are possible with the NORMAL DUBBING
and HIGH-DUBBING keys.
(f) CCRS
Synchronized recording is done by automatically
optimizing the deck recording level to suit the CD
maximum output level.
Procedure
1 Load a disc in the CD player and a recordable
tape in the deck.
2 Set the amplifier input selector to CD, and set
TAPE2 MONITOR to OFF. (For models with a
REC OUT selector, set REC OUT to CD.)
3 Set CD TRACK/PGM and EDIT1/2 as required.
4 If you want to do relay recording, press the RE-
LAY REC key.
5 Press the CCRS/HI-CCRS key.
(g) Serial communication function
Various serial operations are possible when the
deck is combined with a system having a serial
communication bus.

KX-W6050
10
Pin Connection
FL G7
FL G8
FL Segl
FL Seg2
FL Seg3
FL Seg4
FL Seg5
FL Seg6
FL Seg7
FL Seg8
FL Seg9/KSO
FL Segi0/KS1
FL Seg11/KS2
FL Seg12/KS3
FL Seg13/KS4
FL Segl4/KS5
FL Seg15/KS6
FL Seg16/KS7
STANDBY LED
B Mechanism BIAS
B Mechanism R/P
BIAS NORMAL
BIAS CrO2
A Mechanism BIAS
CIRCUIT DESCRIPTION
|
ae
io)
re EB §
Z mt tm
COUTTS raya mse S35
Pee eee SSS Ele O<<
65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80
CXP82324-126Q
40 39 38 37 36 35 34 33 32 31 30 29 28 27 26 25
KIMOMASCAHIY PHM aS YD
nAnne lg n
Rogegs cess bag obs
ZOQ% IF & i
eSB 9 a L_
3 3
= E
= 8
=
ae)
1
2
3
4
5
6
A
8
9
B Mechanism CrO2
B Mechanism METAL
VERSION
NC (PULL UP)
NC (PULL UP)
S.BUSY
S.DATA
Clock
Strobe | System
Data
00 ON/OFF
00 B/C
MPX ON/OFF
KRO
KR1
KR2
KR3
KR4
KR5
Encoder CW
Encoder CCW
SOL
CPM | Mechanism
CSP

Pin Description
Name
CIRCUIT DESCRIPTION
Description
KX-W6050
B Mechanism CrO2
B-mechanism CrO2 tape detection
H: NORMAL
B Mechanism METAL
B-mechanism metal tape detection
L: METAL
VERSION
Destination changeover
H: 6050, L: 4050, W893
Unused (PULL UP)
Unused (PULL UP)
S. BUSY
Serial BUSY input/output
S. DATA
Serial data input/output
CLK
System IC clock output
STB
System IC strobe signal input
DATA
System IC serial data output
O00 ON/OFF
Dolby ON/OFF control
DO BIC
Dolby B/C switching
MPX ON/OFF
MPX filter switching
KRO~KR5
Key return signal input
H: RETURN
Encoder CW
Encoder clock signal input
H: RETURN
Encoder CCW
Encoder clock signal input
H: RETURN
A-solenoid control
H: ON
A-capstan motor control
H: ON
A-capstan motor switching
H: NORMAL L: HIGH SPEED
B-solenoid control
H: ON
B-capstan motor control
H: ON
B-capstan motor switching
H: NORMAL L: HIGH SPEED
LEVEL R
CCRS, DPSS Rch signal input
LEVEL L
CCRS, DPSS Lch signal input
RESET
Reset signal input
L: RESET
EXTAL, XTAL
Clock oscillator connection terminal (10 MHz)
Vss
GND
11

KX-W6050
CIRCUIT
DESCRIPTION
Pin
No.
1/0
Name
7
Description
34
O
|
7OHSP
EQ
SP
HIGH
&
BIAS
70
us
H:
ON
35
0
|
120/70
Bias
switching
H:
120
us
36
O
|
EQ
SPEED
PLAY
EQ
SPEED
switching
H:
NORMAL
37
O
|
PLAY
A/B
A/B
head
switching
ps
B
head
ON
38
O
|
RECEQB
REC
equalizer
A/B
switching
39
O
|
RECEQA
REC
equalizer
A/B
switching
40
O
|
A
Mechanism
R/P
A
REC/PLAY
swtiching
H:
REC
41
O
|
A
Mechanism
BIAS
A
bias
ON/OFF
contro!
H:
ON
42
O
|
BIAS
CrO2
PLAY
BIAS
SWITCHING
H:
CrO2
43
O
|
BIAS
NOR
PLAY
BIAS
SWITCHING
H:
CrO2
44
O
|
B
Mechanism
R/P B
REC/PLAY
switching
H:
REC
45
O
|
B
Mechanism
BIAS
B
bias
ON/OFF
control
H:
ON
46
O
|
STBY
LED
Standby
LED
ON
H:
ON
47-~5A
0
KS7~KSO
&
Key
scan
signal
output
H:
SCAN
Seg
16~9
&
FL
tube
segment
signal
output
H:
ON
55
~62
O
|
Seg
8~1
FL
tube
segment
signal
output
H:
ON
63~70
O
|
Grid8~1
FL
tube
grid
signal
output
H:
ON
71
VFDP
FL
tube
driving
voltage
(—
30
V)
7
;
H:
ON
72
VDD
Positive
power
supply
terminal
(+
5V)
73
Unused
(OPEN)
:
74
|
PHA
A-mechanism
rotation
detection
input
|
-
_
75
|
PHB
B-mechanism
rotation
detection
input
/
76
O
|
L
MUTE
Line
mute
control
ie
ON
77
O
|
R
MUTE
Rec
mute
control
|
.
L:
ON
:
78
l
CE
Backup
detection
terminal
.
|
L:
BACK
UP
:
79
|
A
Mechanism
CrO2
A-mechanism
CrO2
tape
Soecten
|
:
.
NORMAL
A
Mechanism
METAL
A-mechanism
metal
tape
detection
:
L:
METAL
:
12

KX-W6050
CIRCUIT DESCRIPTION
Test Mode
The system enters this test mode when KS4 (TP4) | Cancel method : Press the REC pause key or
and KR5 (TP3) are shorted together with a diode disconnect the AC power plug
and the AC power plug connect to the AC cutlet. from the AC outlet.
Timer
switch
position
PLAY | POWER
Operation
ALL ON-DISPLAY
All the indicators light for about 1.5 sec.
Keys are enabied after the indicators go out.
MECHANICAL SWITCH DISPLAY
The state of each mechanical switch is shown on the level meter.
BOFFC | DECK A
F RVS
t
-00 6-25 -15 -9 HALF -6 REC -3 CrO2 0 MET +3 REC
MOOOOOOnORonoOmMoe
FWoOooooomoApoABoOHoOn
WSS EDy IED
DECK B
4 SECOONDS RECORDING
Record for 4 seconds, retums to the begining, and play back (can be
repeated).
REC PLAY
Ju
AUTOMATIC TIMER PLAY
Set timer play when the power is switched on.
HI-SP NOR-SP HI-SP | NOR-SP
4 SEC 12 SEC 4SEC|} 12SEC
13

KX-W6050
CIRCUIT DESCRIPTION
M Timer
switch Operation
9 | position
POWER | AUTOMATIC TIMER RECORDING
Set timer recording when the power is switched on. (Deck B only)
ye PLAY BACK SPEED SWITCHING
;
FWD Key : Normai speed P.B (FWD)
FF Key _: Hi-speed P.B (FWD)
RVS Key : Normai speed P.B (RVS)
RWD Key : Rewind
DUBBING MODE
The dubbing mode is entered pressing.
Then dubbing key for both high and normal.
If the dubbing key is pressed after that, only the speed and circuit
system changed.
14

KX-W6050
CIRCUIT DESCRIPTION
TIMING CHART
STOP. te (FWD REC
KEY IN Lo 100 200 300 400 500 600 700 800 900 1000 ms
}. i
a
900 1000 ms
800 900 1000 ms
+ +
900 1000 ms
|. {_ A
15

KX-W6050
CIRCUIT DESCRIPTION
S-T- GIP tsa0 SER
Pkey
rn
[Uo
200 600
800
1000
1200
1400 1600
1600
ee
Ge ma
PLAY STOP
FWD PLAY to RVW
600 800 1000 1200 1400 1606 1800
PLAY ~ > STOP > RVW
RVS PLAY to CUE
600 800 RS 1200 1400 1600: 4
KEY
IN
ce
600
800
1000
1260
1400
1600
1600.
SOL
Crm

KX-W6050
MECHANISM DESCRIPTION
318 FR Arm Ass'Y Ae 330 FR Pulley Ass’Y
301 Head chassis 35
_ 326 FF Gear
309 Sub reel Ass’'Y ~_
-
_—310
Sub
reel
Ass’Y
MM Motor Ass’'Y ~
-~-314 Eject Lock
319 Brake Ass’'Y ~—
317 Reverse Arm 325 Play Gear
315
Play
Arm
Ass‘Y
(L)
316
Play
Arm
Ass’Y
(R)
325 Play Gear
307 Fly Wheel (R)
306 Fly Wheel (L) ax
:
~355
Spring
395 Solenoide Ass’'Y ~~
PR Pinch Arm Ass’Y (L) — |
320
Trigger
Arm
ba
ee
Pinch
Arm
Ass’Y
(R)
312 Head Lever - 397 Cam Gear
313 Assist Arm Ass‘'Y
Take-up Torque:
FF. REW Torque:
Back Tension Torque:
330
MM
BR
306
307
17

KX-W6050
MECHANISM DESCRIPTION
FR Pulley Ass’y
wR
Reverse
arm
FR
arm
Ass‘y
Brake
arm
Fly
Wheel
(L)
Fly
Wheel
(R)
Reel
cap
Eject
lock
By
Qs
FF
gear
Subree!l
Ass’y
(R)
Subreel
Ass‘y
(L)
Pinch
arm
Ass’y
(L)
Pinch
arm
Ass‘y
(R)
Play
gear
Play
gear
~~
a
Head lever
Play
arm
Ass‘y
(L)
Play
arm
Ass’y
(R}
Head chassis
18

KX-W6050
MECHANISM DESCRIPTION
FWD PLAY/REC
@ The plunger turns ON for 30 ms, and turns OFF im- @) The boss @) on the rear arm passes through the in-
mediately. ner side of on the cam gear.
@ The boss @ on the trigger arm comes off the stop-
per, and the cam gear begins to rotate.
307
ooh 317
ZS
@) The cam of the cam gear pushes the boss © on the ® Since the assist arm ASS’Y is fixed on the head chas-
assist arm ASS‘Y up, and the rotation of the cam gear sis, the head chassis also rises up to the FWD
is stopped by the boss @® on the trigger arm and gets PLAY/REC position.
at
the
FWD
PLAY/REC
position.
©
The
pinch
roller
(R)
at
the
FWD
side
is
also
pushed
up by the boss ©) of the head lever on the head chas-
sis, and touches the capstan.
327
301
327

KX-W6050
MECHANISM DESCRIPTION
@) Since the play arm ASS’Y (R) becomes free as a result
20
of the rise of the head chassis, it is rotated in the ar-
row direction © by the spring ©, and the play gear
is engaged with the gear of the sub-reel ASS’Y (R),
thereby transmitting the rotation of the flywheel R to
the reel (R).
The play arm ASS’Y of the L-side also becomes free
from the head chassis, but it does not rotate because
it is in contact with the boss ©) of the head lever.
RVS PLAY/REC
@) The plunger turns ON for 100 ms.
(2) The boss on the trigger arm comes off, and the cam
gear begins to rotate.
Since the trigger arm is pulled by the plunger for 100
ms, the boss on the roverse arm passes through
the outer side of the cam on the cam gear.
317
(3) Since the reverse arm also moves concurrently with
the rotation of the cam gear and pushes the boss @
on the head bar, the head rotates.
(Schematics of the head rotation)
@) The head chassis rises in the same way as in the for-
ward play, and is fixed at the RVS PLAY/REC position.
327