Sony TC-W311 User manual

TC-W3it
SERVICE MANUAL US Model
Canadian Model
E Model
Australian Model
TC-W31ll is the cassette deck of the SEN-311 system.
> TC-W31l is a model designed based on the TC-W301.
The mechanical parts of the TC-W31l differ from those of
the TC-W301.
* For additional information not contained in this manual,
refer to the TC-W301 Service Manual.
SPECIFICATIONS
Recording system 4-track 2-channel stereo
Frequency response (DOLBY NR OFF)
With TYPE IV cassette (Sony METAL-ES)
30 — 15,000 Hz (+3 dB)
30 - 13,000 Hz (0 VU recording)
With TYPE Ii cassette (Sony UCX-S)
30 ~ 13,000 Hz (+3 dB)
With TYPE | cassette (Sony HF-S)
30 — 13,000 Hz (+3 dB)
Wow and flutter 0.12% WRMS (NAB)
Dimensions Approx. 430 x 120 x 280 mm (w/h/d)
(17 x 43/4, x 11 inches)
Weight Approx. 3.5 kg (6 Ib. 14 02.) net
Design and specifications subject to change without notice.
STEREO CASSETTE DECK
SONY.

TC-W311 |
EXPLODED VIEWS
NOTE:
e - XX, - X mean standardized parts, @ {tems marked “*” are not stocked The components identified by
so they may have some differences since they are seldom required for routine mark or dotted line with mark
from the original one. service. Some delay should be anticipated are critical for safety.
eee : . eplace only with part number
e Color Indication of Appearance Parts when ordering these items. specified
Example : @ The mechanical parts with no reference ; Sees
KNOB, BALANCE (WHITE)...(RED) number in the exploded views are not Les composants identifiés par une
‘ marque sont critiques pour fa
' f supplied. sécurité
Parts color Cabinet’s color © @ Hardware (#mark) list is given in the Ne les remplacer que par une
last of this parts list. piéce portant le numéro spécifé.
Refer to page 12 of the TC-W301 Service Manual.
(1) GENERAL
°C) |
Be react ics, es eee wee os |
|
Not supplied
; | > not supplied
*B ' Tae
12 19 on >
5 SS > w306
(W301, 306) S
; 9 << :
17 MECHANISM

GENERAL PARTS LIST (Parts comparison table of TC-W301 and TC-W311)
TC-W301
12
Ze
25
26
ra
29
30
31
32
33
34
35
903
904
905
t-5o40° 190-1
X-3340-189-1
4-3340-191-1
X-3358-214-1
3-346-379-01
3-346-381-01
3-349-039-01
7-685-133-19
4-928-635-01
4-928-635-21
4-886-821> 11
4-943-424-01
4-943-423-01
7-682-548-09
X-3340-138-1
X-3340-173-1
3-346-265-11
¥07-049-023-2 1
Not used
Not used
*4-943-088-31
3-704-366-01
3-499-042-XX
7-685-646-79
X-4904-496-1
Not used
3-558-708-11
3-549-452-00
a> (ol=437=11
Not used
*A-2006-071-A
¥A-2006-138-A
1-574-724-11
1-574-723-11
1-548-596-61
TC-W311
<— Identical
— Identical
X-33862-786-1
Identical
— Identical
f
Identical
Identical
Identical
Identical
Identical
f
t
Not used
Identical
Identical
Identical
Identical
Identical
rot a a
i
Identical
¥3-349-023-51
¥3-349-023-61
¥3-349-023-71
t
Identical
<— Identical
<— Identical
Not used
X-4941-228-1
3-359-928-01
<— Identical
<— Identical
<— Identical
1590453 7-11
*¥A-2006-468-A
*¥A-2006-528-A
12590-48771)
1=590-538-11
<— Identical
Description
LID (A) ASSY, CASSETTE
LID (B) ASSY, CASSETTE
PANEL ASSY, FRONT
PLATE ASSY, ORNAMENTAL
KNOB (SLIDE)
BUTTON
KNOB (VOL)
SCREW, +tBTP 2.6X6 TYPE2 N-S
SCREW, +BV (2,6X8) TAPPING
SCREW, +BV (2. 6X10) TAPPING
SCREW, S TIGHT, +PTTWH 3X6
BUTTON (BLOCK B)
BUTTON (BLOCK A)
SCREW, +BVTT 3X8 (S)
FOOT ASSY (US, Canadian)
FOOT ASSY (E, AUS)
HOLDER, PC BOARD
PANEL, BACK (US)
PANEL, BACK (CND)
PANEL, BACK CE, AUS)
CASE
SCREW (CASE) (M3X8)
BELT, COUNTER
SCREW, +BVTP 3X8 TYPE 2
FOOT ASSY
FELT (CONDUCTIVE FELT)
WASHER, STOPPER
PULLEY, SHUT-OFF
WASHER
CORD WITH CONNECTOR (US)
MOUNTED PCB, AUIDIO (US, E, AUS)
MOUNTED PCB, AUIDIO (Canadian)
WIRE, FLAT TYPE (17 CORE)
WIRE, FLAT TYPE ( 7 CORE)
COUNTER, TAPE (MIDDLE TYPE)
« AUS: Australian
| TC-W311

TC-W311 |
ELECTRICAL PARTS LIST
Parts comparison table of TC-W301 and TC-W311
Page TC-W301 TC-W311
16 | C34l 1-126-301-11 ELECT IMF 20% 50V | C341 1-126-233-11 ELECT 22MF 20% 50V
C501 1-126-233-11 ELECT 4. 7MF 20% 50V | C501 1-126-233-11 ELECT 22MF 20% 50V
CN6O1 *1-566-856-11 SOCKET, CONNETOR 5P
(SYSTEM CONTROL 1)
CN601 *1-566-856-41 SOCKET, CONNECTOR 5P
(SYSTEM CONTROL 1) (BLU)
|
|
CN604 1-568-439-11 SOCKET, CONNECTOR ‘ CN604 1-568-826-11 SOCKET, CONNECTOR 7P
CN605 1-568-440-11 SOCKET, CONNECTOR 17P, CN605 1-568-836-11 SOCKET, CONNECTOR 17P
| CN608 1-568-438-11 SOCEKT, CONNECTOR 17P | CN608 1-568-860-11 SOCKET, CONNECTOR 17P
CN609 1-568-437-11 SOCKET, CONNECTOR 7Pj CN609 1-568-850-11 SOCKET, CONNECTOR 7P
D401 8-719-107-94 DIODE 18$202-1 —° | D401 8-719-987-63 DIODE 1N4148M
17 | D402 8-719-107-94 DIODE 18$202-1 D402 + =8-719-987-63 DIODE 1N4148M
D501 S-719=107-94 DIODE 188202-1 D501 8-719-987-63 DIODE 1N4148M
D504 8-719-107-94 DIODE 1882021 D504 8-719-987-63 DIODE 1N4148M
D505 8=719=107-94 DIODE: 1$8202-1 D505 8-719-987-63 DIODE 1N4148M
D506 BH FLO=tOT 304 IDLODE 2S5202-1 D506 8-719-987-63 DIODE 1N4148M
D507 S-719-107-94 DIODE 7S8202-1 D507 8-719-987-63 DIODE 1N4148M
D510 8-719-107-94 DIODE 188202-1 D510 8-719-987-63 DIODE 1N4148M
D512 8-719-107-94 DIODE 18$202-1 D512 8-719-987-63 DIODE 1N4148M
D516 Oo Tio-10T-94, DEORE ISs202=1 D516 8-719-987-63 DIODE 1N4148M
D518 8-719-107-94 DIODE 18$202-1 D518 8-719-987-63 DIODE 1N4148M
19. | 3302 beGtlo2t-2 SWITCH. SLIDE §302 L=-570-S74-11. SWITCH, SLIDE
: (DECK A TAPE SELECT) (DECK A TAPE SELECT)
English
P 91D1641 - 1
|
Sony
Corporation
Printed
in
Japan
9-956- 406-11 Audio Group © 1991.4
Published by Customer Relations and Service Group
hey, ae

Be z Peon a oma
SERVICE MANUAL
TC- W306 is the cassette deck
section in SEN-501.
Photo :
TC-W301 is the cassette deck
section in SEN-301.
SPECIFICATIONS
Recording system
4-track 2-channel stereo
Fast-forward and rewind time
Approx. 120 sec. (with C-60 cassette)
Bias AC bias
Signal-to-noise ratio (NAB, at peak level)
TYPE IV
(Sony METAL-ES) peegP m:08
TYPE II (Sony UX-S) | 56 dB 63 dB
TYPE | (Sony HF-S) 61 dB
Total harmonic distortion
1.0% (with Sony METAL-ES cassette)
Frequency response (DOLBY NR OFF)
TYPE IV cassette | 30-— 15,000 Hz (+3 dB)
(Sony METAL-ES) | 30— 13,000 Hz (OVU recording)
TYPE Il cassette | 30-—14,000 Hz (+3 dB)
(Sony UX-S)
TYPE | cassette | 30-—13,000 Hz (+3 dB)
(Sony HF-S)
Wow and flutter 0.12% WRMS (NAB)
Input (TC — W306)
connect [Te Seeiiy [teas
LINE IN 77.5 mV (~20 dB) | 50 k ohms
TC- W306
US Model
TC- W301
TC- W306
Canadian Model
E Model
Australian Model
TC- W301
Model Name Using Similar Mecanism TC- W295/ W390
W301 : TCM- 180VAH1
W306 : TCM- 180VAH5
Tape Transport Mechanism
Type W301 : TCM- 180VBH1
W306 : TCM- 180VBH5
Output (TC —- W306)
Rated output level | Load impedance
LINE OUT
0.44 V(—5 dB) at
load impedance
47 k ohms
| over 10 k ohms
General (TC — W306)
Power requirements
120 V AC, 60 Hz
Power consumption
15 W
Dimensions Approx. 430 x 118 x 250 mm (w/h/d)
(17 x 43/,x 97/, inches)
including projecting parts and controls
Weight Approx. 3.4 kg (7 Ibs 8 oz)
Dolby noise reduction manufactured under license from
Dolby Laboratories Licensing Corporation.
“DOLBY” and the double-D symbol DM) are trademarks of
Dolby Laboratories Licensing Corporation.
STEREO CASSETTE DECK
ONY.

TC- W301 / W306 :
SERVICING NOTE FOR TC-W301
{To supply B+ voltage ]
When this model alone operates, connect the unit
to the regulated DC power supply, since power of this
model is fed from TA-AX301.
5-pin DC input connector
® 12V to regulated dc
power supply
SAFETY-RELATED COMPONENT WARNING!!
COMPONENTS IDENTIFIED BY MARK A OR DOTTED
LINE WITH MARK A ON THE SCHEMATIC DIAGRAMS
AND IN THE PARTS LIST ARE CRITICAL TO SAFE
OPERATION. REPLACE THESE COMPONENTS WITH
SONY PARTS WHOSE PART NUMBERS APPEAR AS
SHOWN IN THIS MANUAL OR IN SUPPLEMENTS PUB-
LISHED BY SONY.
ATTENTION AU COMPOSANT AYANT RAPPORT
A LA SECURITE!
LES COMPOSANTS IDENTIFIES PAR UNE MARQUE /\
SUR LES DIAGRAMMES SCHEMATIQUES ET LA LISTE
DES PIECES SONT CRITIQUES POUR LA SECURITE
DE FONCTIONNEMENT. NE REMPLACER CES COM-
POSANTS QUE PAR DES PIECES SONY DONT LES
NUMEROS SONT DONNES DANS CE MANUEL OU
DANS LES SUPPLEMENTS PUBLIES PAR SONY.
of TC-W301 from TA-AX301.
SAFETY CHECK-OUT
After correcting the original service problem,
perform the following safety check before releasing
the set to the customer:
Check the antenna terminals, metal trim, ‘“‘metallized”’
knobs, screws, and all other exposed metal parts for
AC leakage. Check leakage as described below.
LEAKAGE TEST
The AC leakage from any exposed meta! part to
earth ground and from all exposed metal parts to any
exposed metal part having a return to chassis, must
not exceed 0.5mA (500 microampers). Leakage
current can be measured by any one of three
methods.
1. A commercial leakage tester, such as the
Simpson 229 or RCA WT-S540A. Follow the
manufacturers’ instructions to use these instru-
ments.
tro
A battery-operated AC milliammeter. The Data
Precision 245 digital multimeter is suitable for
this job.
3. Measuring the voltage drop across a resistor by
means of a VOM or battery-operated AC volt-
meter. The “limit” indication is 0.75 V, so
analog meters must have an accurate low-
voltage scale. The Simpson 250 and Sanwa
SH-63Trd are examples of a passive VOM that
is suitable. Nearly all battery operated digital
multimeters that have a 2V AC range are
suitable. (See Fig. A)
To Exposed Metal
Parts on Set
AC
voltmeter
{0.75 V)
= Earth Ground
Using an AC voltmeter to check AC leakage.

SECTION 1
ADJUSTMENTS
1-1. MECHANICAL ADJUSTMENTS
PRECAUTION
1. Clean the following parts with a denatured-alcohol-moistened
swab:
record/playback head pinch roller
erase head rubber betls
capstan idlers
Torque Measurement (DECKS A and B)
Gas aoe seis
ne
1-2, ELECTRICAL ADJUSTMENTS
1. Demagnetize the record/playback and erase head with a head
demagnetizer.
2. Do not use a magnetized screwdriver for the adjustments.
3. After the adjustments, apply suitable locking compound to the
parts adjusted.
4. The adjustments should be performed with the rated power
supply voltage unless otherwise noted.
5. The adjustments should be performed in the order given in this
service manual. (Asa general rule, playback circuit adjustment
should be completed before performing recording circuit adjust-
ment.)
6. The adjustments should be performed for both L-CH and R-CH.
@ Switches and controls should be set as follows unless otherwise
specified.
DOLBY NR switch: OFF
TAPE SELECT switch: TYPE I (NORMAL)
e Standard Record:
Deliver the standard input signal level to the input jack
and set the REC LEVEL control to obtain the standard
output signal level.
— Record Mode —
af osc
LINE OUT
LINE IN
Note: Before recording short CN505 with a lead wire, otherwise
MUTING functions and output signal does not appear at
LINE OUT terminals.
Standard Input Level
G35V 1008
Standard Output Level
load impedance . 47kQ
output
level
0.44V
(—5dB)
Record/Playback Head Azimuth Adjustment
2-CH
Procedure:
1. Mode: FWD playback
test tape
P-4-A100
(10 kHz, -10 dB) ‘
LINE OUT
2. Turn the adjustment screw and check output peaks. If the peaks
do not match for L-CH and R-CH, turn the adjustment screw so.
that outputs match within 1 dB of peak.
within 1d8 :
Output level ” within 1 dB
— screw position
Screen pattern —
in phase 45° 90° 135° 180°
ye YS
good wrong
3. After the adjustment, apply suitable locking compound to the
adjustment screw.
Adjustment Location:
cs
SATURN REALS
Adjustment screw
Test Tape:
Level Adjustment
[LINE IN/OUT for TC- W301 ] : CN321
@)L-ch LINE OUT
Tape Speed Adjustment
@A-ch LINE OUT

TC-W301 / W306
2-1. SEMICONDUCTOR LEAD LAYOUTS
Tape Speed Adjustment DECK A Record Bias Current Adjustment | DECK B | Record Level Adjustment DECK B .
DECK
B
;
CXA1100P
2S8C945-P
Procedure:
Setting:
Setting:
CXA1198AP
2SC1815Y
: REC LEVEL control: standard record (See page 3.) TC4051BPHB 2SD1387
Mode:
FWD
playback
rai
a
I
(
pag
REC
LEVEL
control:
standard
record
(See
page
3.)
test tape counter Procedure:
ener
0B)
1.
Mode:
record
Procedure:
16
1514131211109
1. Mode: record
AF OSC
blank tape 12345678
CS-
122
AF
ose
(Top
view)
é
c
blank tape e
attenuator
CS-122
LINE OUT ae]
o attenuator
ig al
1,
Short
the
pins
of
CN504
with
a
wire
to
set
the
high
speed
mode.
6002
1Oo0°0
Cf
——
IRSESAS
eat?
LINE IN 600 2 Vs
Be
A
a
:
1)
315
He
Measurement
limits:
high
speed
2)
10kHez
}
0.025
V
(-30
08)
LINE
IN
315 Hz, 0.025V(—30d8
Speed
checker
Digital
frequency
counter
s
;
/
Ls}
6,000
+
20
Hz
2.
Mode:
playback
lea)
RS
155
123456789
ti
Frequency
difference
between
the
beginning
and
the
end
of
the
(recorded
in
step
1.)
2.
Mode:
playback
{\
tape should be within 1.5% (90 Hz). CS-122 Boece
(recorded in step 1.)
Adjustment Location: 0 see
DECK-A:
RV501
LA3160
HZS6A1L
DECK-B:
RV503
LINE
OUT
2. Remove the wire in step 1. (CN504)
Measurement limits: | normal speed
Speed checker Digital frequency counter
3000 #10 i
Frequency difference between the beginning and the end of the
Playback the tape record in step 1. If the measurement
limits is not satisfied, adjust C408-1 (L-CH), C408-2
(R-CH) and repeat steps 1 and 2.
Measurement limits :
The LINE OUT level of 10 kHz signal relative to that of 315 Hz:
-0.5 dB to 0.5 dB.
LINE OUT
Playback the tape recorded in step 1. If the measurement
limits is not satisfied, adjust RV141 (L-CH), RV241
(R-CH) and repeat steps 1 and 2. If the level difference
between the channels is still 1 dB or more, divide it to the
both channels on the basis of —5 dB.
f/f ‘
ALIAN\N.
GELS
HZL11CH2
i cathode
anode
tape should be within 1.5% (45 Hz). sMegsurementumits:
LINE OUT level: 0.041 - 0.045 V (-25 + 0.5 dB)
Adjustment Location: MC14066BCP SEL1210S-C
»PD4011BC SEL1910A-C
DECK-A:
RV502
TC4001BP
DECK-B: RV504
3. If the specifications are not satisfied, repeat step 1 and 2. Adjustment Location: peg tz 1410 9B
long short
[AUDIO BOARD] ~ COMPONENT SIDE — se
4567
(Top view) cathode
anode
RV141: REC Level Adj, L-CH
Playback Level Adjustment
*
i
RV503:
High
Speed,
Deck
B
Procedure: RV501: High Speed, Deck A 2SC3623A- LK SEL4214S
Mode:
FWD
playback
RV502:
Normal
Speed,
Deck
A
test t. : :
P4300 RV504: Normal Speed, Deck B RV241: REC Level Adj., R-CH ak
(315
Hz,
0d8)
CN504:
High
Speed
Mode
RV102:
PB
Level
Adj.,L-CH,
Deck
B
RV202: PB Level Adj., R-CH, Deck B
C408:
REC
BIAS
Current
Adj
ee
& 1 ANODE
LINE OUT Ee 2 CATHODE
RV101: PB Level Adj., L-CH Deck A
Adjust, RV201: PB Level Adj., R-CH, Deck A
DECK-A: RV101 (L-CH), RV201 (R-CH) DTA114ES 1SS202- 1
DECK-B: RV102 (L-CH), RV202 (R-CH) nied nae 10E2N
so that the measurement limits are satisfied. DTC144ES
2SC2603- EF
Measurement limits:
LINE OUT level: 0.180 - 0.146 V (-15 + 0.5 dB)
level difference between the channels: within 0.5 dB
cathode
anode

TC- W301 / W306
@®
SEMICONDUCTOR
LOCATION
2-2.
PRINTED
WIRING
BOARDS
®@ See page 5 for semiconductor lead layouts.
| Ret. No. | No, | Location |
C4
1C194
D-4
|
|
|
y
|
3
i
4
|
5
|
6
|
7
|
8 9
lO
|
|
|
|
I2
ioe
we
|
14
“|
118
|
16
|
a
18
a
9
|
{C291
0-3
DECK
A
ae
ms
—
DECK
B—
K
A
Note
on
Mounting
Diagram:
1C301
1C302
HPIOL
A
PLAYBACK
HEAD
(DECK A}
1C303
1C322
1C341
10342
1C501
1C502
PR Note:
@ O-—— +: parts extracted from the component side,
@ { =: parts mounted on the conductor side,
HRPIO}
RECORD / PLAYBACK .
HE40]
HEAD 1
ERASE HEAD
Q101
Q121
Q141
Q201
Q221
Q241
Q321
Q401
Q402
Q403
Q404
Q405
501
Q502
Q503
Q504
Q505
Q506
Q507
Q508
Q509
Q511
Q512
Q601
Q602
Q603
Q605
[METER
BOARD]
[
{AUDIO
BOARD
]
METER.-UNIT_.
pIs5
nena
Oe
cece a tg
ane & f ms y
Sa
atl
Lp
eh
-
soo
anv
een
Ma
RAEI
am
Ri
:
ie
Ce : oP
a ut a
PoC, Din casas tent
rarcapaacasncneruaegnasinessiyT et of ecient bm
“C323 ee nner) pect
Fat Mec tena et
See
remanicetapasnatnytng,.
stating, Say, Cece eed ped
sie Sh, a je
te, nancsintionareat
tat ivmunearaiscesrioncucngasntt
teyesaranarncaceaghntdnaaeys®
GUUUCULeuetitital
3
. °
Agha ieasusver atin
i
_ age Se
a |
|
1
1
i)
i Bi a ee TC-W301 i: -3| |
e | IP [gfe |} | tecwsol Canadian MODEL /\ ae — Be i
aa
CES
lessee
4
US,E,Australion
MODEL,
|
-wi0s!
O+-
©
O+-©!
l ay, CJ! | tc-w306 MODEL MODEL | Tope | @ ol
J | TC-W306 [SraTER CN6OI J | CN321 |} j Ce) _[t) aa L
SYSTEM U
|
eee
eee
jones
ee
LN
evan
it}
|
Soe
MODEL
TC-W306 7s eee a ae
MODEL
oe ts $904
—
DECK
A—
DECK
B
aor
M902
M901 $905
J
REEL/
CAPSTAN
ee
REEL/CAPSTAN
S905
(FWD) ~
t
gy
t
Sy
aw 3
5
RS
oO
62
a8
g)
26

2-3. SCHEMATIC DIAGRAM
HPIOI Lech = PTY
Late a
ee P
ee an SET
C
HRPIOL
B-DECK
REC/PB-HEAD
Lch
[AUDIO BOARD}
% C301, 302
TC-wW301
100n 25V
TC-W306 MODEL
!
i
| 100 16V
1
MODEL
16303
(Ol sa | @ sisis2)
| @] 55,0156) | ©)
Sissaset ess —
[siacs2v7@[ si |
Q121
28C2603
LINE OUT MUTING
13
DOLBY NR
LINE
out
MUTING
1c301 1@| Ko)
LA3160 fo) [ (2 222 |
fercren| PB EQ AMP fo) fe)
ian aso, L@L_ sno Tet ie]
(1/2) 220 1/2 : gz! 2 i
coz ay fF Sov | SOV
L 1 | ios
= 10% SOV iw ls | 47 | 2, 54 °Sov 16303
a> 5 ize Pe Be bers W4086BP
C103 fe A/B SELECT 8 +]
CN301 es Cis ‘ — ——
Ky
C101
$8103
Ta
_|
4.7
S0V
ae
is
Lal 36007 F270K Rio2T RTOs! c1os a RY : 3
a 82 °F 5. 6k! 0.0228 RViot Rexeze)
¢104 C301 10x
G+ | 1o0x4 ae:
02 8
C2
10s Sov |
R204 C205
5. 6k 0. 0228
¥20
10k
x
R
220
it, S2's
4.78 SOY
302
(1720)
10303 (274)
SWITCHING
e303
1000p T
PB LEVEL
DECK B(L}
R114 100k
10303 (3/4)
SWITCHING
\.
TAPE-B1:0
OTHERS .3
cx6os 1d creos
<«G-
One
[
METER
BOARD
]
on9
0,0
L
L | i RV321-1
RI3I tk R121 33k 20K
ax
ul R231 tk R221 33k min
‘Hr (2}-6}
RV321-2
20K
4_} 2) DI9I— D196
SEL42144S-C-TP3
!
AUX aias R192 100
kc ; CH321 ba
R391 ze
R235 La asa nae 4 560 ox. lox lose Let ot °3
‘3k Toure" siesninalibesiniy. umole Sidi, | iiuasitiwipiaipitenle” soup. ttmsessietelisansonemestal, isha ey Sa J Cy ey C7 ey am
ae mG [ye] D196] D194] Di92
Rese
l
Ca}
tig
e191
Ld
i
man 2,28 O-—)—-) )- OOH OD)
50V » » - 4 44 ry
One® 98 98 8398 0 fe
C227
2.2% SOV
TC-W30!
rocco
Kexez. 3)
[REC LEVEL ADJ(L) | LEVEL ADJ(L)
Qt4)
Rion
2sc2608
MUTING
REC EQ AMP
tp ‘SOV
TC- H
MOO! fag
10p 50V 0241
TC-W306 2SC2603
4
0.7
9
R349 R350
S6k 62k
R3SS R356
82k 75k
MODEL MUTING
i a ee er)
—
Oak
|
METER DRIVE
Heh 83 0
1C291
IR2ESIA
Seep Rive Kom ksh
{C291
D291 — D296
SEL42148-C-TP3.
OF F~eON
$303
[DOLBY _NR)
Rch = > | Ke) of ° R207 R209 C211 6.52! boy MODEL
H | PPE So 0.022% i
— +20
vee | t | o | & | R {S600) 270 da corn | NR
O ' 209 }9-8_ R208
c amoleaferfon] |, 7) | al | be een oa
0 -_ a DECK BIR)
Fea ét4y|<20>]<32>} 11 $22? — 3 ar TAPE ~BI:0
Or@ <i |c209|<32) W632 i 162 %y 1 10302 rises S OTHERS $10.5
Lt (2/2) a
|} L131 27H SATS 8 TAPE. B10
: 88 ¢ 1 = Hl 4
y Ly Cis 3
! 6146 75p 630v T '80 g ©
i S 3 $301
| | €246 7S» 630v é
i
i TYPE _LTYPE | TYPE
des A se ace a hoe ttn tet ote PON ee 2th Ao ete Shee adore metus | a 171 "yy
940) asciaiey TPE 2 2en1345
F a1AS OSC” BIAS DRIVE SWITCH ee ed
TAPE~BIL/IV 1.2 TAPE-BIV .0 HIGH SPEED 0 I
) =) 150 } OTHERS 1.2 NORMAL SPEED :8.3 $301-3 gy¥ee
ya
re, $301=4
Dor] ¥ 0 33-15)
(Ss132| PCIE in Mm R408 R410
12k 330
nie a
BIAS OSC
t \
$302
= [nich SPEED DECK A} DSOS R10
G
I
DEcK=
A.
HIGH
SPEED
DECK
A
RVSO2
1$8132
68k
2
7
2
2
=
1 NORMAL SPEED DECK A . wees scan cls
SNSO! “al R502 M401 1BP M4001BP ists] TYPE _, TYPE
= ‘an av501 a 180 CONTROL LOGIC CONTROL LOGIC out I “ayy
2. 2k Los AY
M901 ears | ACD
ra
A MOTOR ul Ds1é $501
|
REEL/
Ome
am
«>
Be
at
psos
SP
paig
1€S01
(3/4)
1¢502
4/4)
IDUBB I
CAPSTAN
an
fetstekn
Ile
502
ieso2
Gan]
188182
= =
at
=
—
SEL12108-1P3
8503
IC501
474)
t
egewee
R515
RES
12 ao | ft] | dll UP | pee eee ee + ee fe
A
FWD
SW
11.2
2SAl345
i
7
600
og’
- SWITCHING | TC-W306 MODEL | ey
3 a) © (eee coer eey
Gor D601 D602 2 ri ANY T 4
H
|
26012
f6034
10E2-TA2 1OE2-TA2
@
=
H
rs
DECK
B
l
|
Ca
REGULATOR
7
|
2
AC
IN
1
a508-
y
©)
kay
=
1
cuso2
ascsaae
250800,
R6OS|
wh)
:
- oI : id D604 D603
re ee SLi | TC-W306 MODEL Rog6g 10K g 128° Od) 1OE2-TA2\ 4 082-72 Airs:
M902 NE tavsoa POON fp Neen
} B MOTOR (M) elo A POWER
1
ORSTAN
os
H
1
TRANSFOMER
H
)
$904 ? 1? tL “ua Wee BNICaM [SWITCH BOARD }
B FWD SW S 19} (9.6) : _ 1
r o (O}
ee sw ° CK602 CHEOS |
|
ICSO1
(2/74)
1}
oF
vey
7!
\
3
wy
-—-———
Re
eee
ee
12)
oJ
a
y
$60! RBA ~2 i
0,
<i>
28A1348
|
;
:
o
zara}
!
0, 11.8) R518 29e4dop 11-8 aso? 40.1) OFF ON |
11.8,
AZB
tO)
“REMOTE
PAUSE
eencninge,
tt
SE
8
a
ET
ERI
ee
og
site
tre
Rae
see
a
rg
ple
Sty
eae
etme
eo
etn
aa
_
11.8, BIO) | ee R550
1,
8
(the)
Nu
dO
ee
SST
TT
OT
eran
ray
|
cxsor
f
b/--~---—
=
10, <0>
11.8 <VCC> aaseie |
LATOR
|
I 0506 AU |
J 2sAl345 —_ Bil.8)
SWITCHING | _|SWITCHING a7 lev I heoa '1C-W301 WOTOR @ |
R7024 $R507 ‘C-W301 MODEL, “{TH2-TPE trali Te- |
O,BtIIt) H ts 38 i pliers: A Ee en | C-W30l MODEL SYSTEM CONTROL 1 J
@) 0,A/8 11.8) = lids | TC-W306 MODEL MODELS SS pe ep
6) o,<i1.2> [@] 18, a7B0) TTc-w306 nee = ——— I Ssap ee a a pa = = = =
| ©] 0, av2> [@3] 1.8, 07810) | MODEL COO 1
[@L_ cxo {Ol ne wee) Ei erage trees ernie ae J
es 0
TC ~W306
MODEL
16 17
Note on Schematic Diagram:
Note:
TC-W301 / W306
All capacitors are in uF unless otherwise noted. pF: uur
SOWV or less are not indicated except for electrolytics
and tantalums.
All resistors are in 2 and 1/,W
specified.
("_]}: adjustment for repair.
or less unless otherwise
AC voltage readings in the bias oscillator with a VTVM.
Voltage and waveforms are dc with respect to ground
under no-signal conditions.
no mark: STOP
A( ): PB (DECK A}
B( ): PB (DECK 8)
< >: REC (DECK B)
f ]: DUBBING (NORMAL}
{{ lH}: DUBBING (HIGH)
Voltages are taken with a VOM (Input impedance 10M).
Voltage variations may be noted due to normal produc-
tion tolerances.
Signal path.
X> :PBIDECK A)
[> :PBI(DECK B)
(>> : REC (DECK B)
Note:
The components identi-
fied by mark
or dot-
ted line with mark
are critical for safety.
Replace only with part
number specified.
Note:
Les composants identifiés par
une marque sont critiques
pour la sécurité.
Ne les remplacer que par une
piéce portant le numéro spéci-
fié.