Sony TC-WR545 - Page 16

TC-WR545/WR741
5-5.
SCHEMATIC
DIAGRAM
(AUDIO
SECTION)
1 2 3 4 =) 6 7 8 9 10 11 12 13 14 15 16 17 18 : 19 20 21
TC-WRS45 TC-WR74 1
1p RS tS SS a ee EIS lg ee ep iT Ra ha A err re TTS ae GND ag Sa Be WOKEN SPP E ME a gat eRe pO aging To Fg Fences SE ear ne TR gt ng yt Neg vge Be E erp Se eT ee ag eg patte as Be ees ele gags Bea reg gc ea ge legiog GE ER pe ae gw eo SE Te, ag nen Rene eats MR gor ra ne eT Po seer tas ere es es SS SS a ee ees a Sse anicee Sete Get ee ae anes ssa a SSeS See eee a aera Soe Se Se SOR SSS See ea SSS Sa SS Se SoS SS eee CST aS SSSA STAT as Se GRRE ARS Sela Ts Fe ee a RR RS TRS TRO Ree SS SR SS ae Rr a BR nee a)
e IC BLOCK DIAGRAMS
H Ss = a ea a a a Nk et a eee H a i ge ae te
Al: |
IC501 CXA1561S : MD-A BOARD ] [ SW-A BOARD ] | [ MD-A BOARD }
SB1A
56%
cae
2 = = = ‘ (STOP DET) (STOP BET)
5
z
i
=
g
g
5
5
8
#
g
:
|
)
3 2 5 = = 5 e 2 # 2 > S82A S82A
(i) (0) (19) (7) (18) ® H (C r02) : (C 02)
TO MAIN TO BALM
B ' 72 {HALF BET) (CN802) : 072 (HALF ET) (CN802)
CNP71 1 : CNP71 Si ;
M2A rm! Sov M2A +r! 50V TAPE SPEED
REEL
ae
2
(HIGH)
I
REEL
(My
=I
2
(HIGH)
I
UNGTRR Sel Ls ae ) | wovoR Ned eh
! U GP2509-C 1 (oa
TAPE SPEES NUL 1 &K-B t TAPE SPEED
(NORMAL) f (NORMAL)
eNP72 vo Q71 1C81 CNP72 a7t 1C81
Cc aA SWITCHING | ROTATION DET sPEE® To! SWITCHING | ROTATION BET
/ om ____ - ~ - | min ME L___ — —_—"- -
CAPSTAN ! CAPSTAN |
MOTOR : MOTOR | a
H | : neal
: t
| | !
Di:
|
CNP32
PB LEVEL ' 3 PB LEVEL
' x L : » Lo L
L-CH = 2 s RVIT Leche get | RVI
! Cit Lo :
! 3909 = hg +7.5V : is +7.5V
HP101 L CH (PB) HP101 L CH (PB)
IC502 CXA1599Q E PLAYBACK GNB (SIGNAL) PLAYBACK GNB (SIGNAL)
“as HEA® e R CH (PB) HEAD R CH (PB)
e rs 9 © he ' S -7.5V TO CONNECTOR | x ~7.5V 7G CONNECTOR
« @ 8 8 g = = 8 » 2 & { = RY2I ae BOARD : ss RY2I REEL+ BOARD
3
££
££
gg
=
2
§
&
2
we
R-CH
=>
2
3
ue
(CN801)
R-CH
+=
&
ha
<
tk
(CN801)
R ; ues +5V
69-—G)—69) G9) Q% C28 5 ay 07 C28 5
1000 _ HIGH 1005 HIGH
i Ic3i_ | 220 7 : R32 -
meine Sica eS herk 7V (MOTOR) pcg 7V (MOTOR)
F I: i
NR IN2 METAL I C31 } i ] C3T
' PB AMP i PB AMP
PASS 1N2 SPEEO 1 !
PB oUT2 REC MUTE i at, ag a Gd i = = os eevee eae ay reali rn Se eS
oe peer ! [ MD-B BOARD } [ fd ] | CMD-B BOARD ] , =
G
|
!
STOP
geT
f°
ee
al
GND (VG) ovec ' STOP
Cro eT YS SYS.GNB
{REF DGND t ! METAL
T
TO MAIN BEM 25 a 70U TO MAIN
Vol.
OUT!
vee
Sat
TAPE
SPEEB
BOARO
|
ae
eas
HALF
BOARB
ee (HIGH) (CN803) oy (CN802)
M2B le ERASE PROOF &
PB OUT! HEADPHONE VEE H hoa | (SIDE B) 5
| ane J HALF DET
PASS
1H}
PVEE
TAPE
SPEED
== | (NORMAL) i
HEADPHONE H '
WR IND METER2 : CNP72 eee tan Hi | op7s09-C
;
SPEED
I]
!
Q7t
t
NJLS1&K-B
Speed 2SA812 y
1 2 i
REC
IN1
METER)
!
MIB
I
>
: CAPSTAN ) +sv | 3 4, R71 RV71 1C81
; MOTOR = 10k
S
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2
ROTATION
BET
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~
a
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a
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HRP101/HE101
i RECORD/PLAYBACK/ERASE 1031
HEAD
aaa ae: I
a
a
ee
Fathi]
:
:
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fe
5
CNP31
1 kK 1
L-CH 3 Ol] +7.5V
‘ N Ps q Poy :
|
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bk
0.
ZaE
Se
|
>
O2
L
CH
(PB)
072
CNP71
3P
Kise = SEER O3| GNQ (SIGNAL) 1 50v Mt
i . : Sarre ama O5} -7.5V TOCA lo @ MOTOR
+ All capacitors are in F unless otherwise noted. pF: u u F == rt x, aaa BOARS Ls |
F . 3 i i q ‘ 3
50WV or less are not indicated except for electrolytics and K +> & fj O7| REEL- Nets 1032
tantalums. R-CH cha rs rt O8 +5V HRP101/HE101 sae
. . . ‘ 1
+ All resistors are in Q and %4W or less unless otherwise 1008 | Loe O39} HIGH 1 RECORO/PLAYBACK/ERASE EA BAC eG Ane a
ees
1
j
i
specified. wecdS7062 10 | ~7¥ MOTOR) HEAD a
* % : indicates tolerance. | I ( SPEEA CAPSTAN
|
|
|
eo
ane
* A: internal component. ys
‘ t . t A. I
* . ! 1 " i
- fw--+ : fusible resistor. L ; Loch |
Note : Note :
The components identi- | Les composants identifiés par y OR Oh
fied by mark ordot- {| une marque sont critiques : HIGH:2.1
ted line with mark pour la sécurité. eva ome
are critical for safety. Ne les remplacer que par une : i Q71B
; ie Jot. NORM/H1GH
Replace only with part | piece portant le numéro spéci SPEEA SWITCH get aap
number specified. fid. Mi: i
t ! 4 I
; A +7.5V
: B+ Line ners L-CH (PB)
Spot
pees
2saie225
GSI,
52
aun
Pe
rane
R-CH
(PB)
: adjustment for repair. -7.5V To
CNP33 Sets MAIN BOARB
e Voltage and waveforms are dc with respect to ground under ©1| BIAS ' ' REEL () ane
no-signal conditions. ; NI! I ©2 | L CH (REC) SW ITEH +5¥ (MOTOR)
no mark : STOP aa O3| GNA HIGH
O4 R CH (REC) ! \ -7V (MOTOR)
¢ ) : REC ! pb] Be) Heeay TO MAIN
+ Voltages are taken with a VOM ( Input impedance 10M Q ). = O06 (CN802)
sge . 7 1 : ’
Voltage variations may be noted due to normal production I 07 '
tolerances. ; 08 BIAS
‘ ae Og} -2. 7
*
Waveforms
are
taken
with
a
oscilloscope.
:
Aree
L~CH
(REC)
iati
i
0}:
©10
|
TYPE
mi
Voltage variations may be noted due to normal production ! Scape
tolerances,
Cieied
Ce
RF
QS1,
52
953
RELAY
@
Bee
nae
* Circled numbers refer to waveforms. | Re? | 130 BIAS OSC BIAS B+ SWITCH +5V eNeeae)
;
!
16V
30V
£27
7
953
° Signal path. f 390 390e 2581822 BIRECTION
(pee
BIAS
'
{60
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QUICK
SD
:PB(DECKA)
z
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NC
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:
REC
(
DECK
B)
Ts
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[> :PB(DECKB) P | : 48 gs avid
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2 . 3 t i 1
SG Geiney (DOD-1D)-114)119) (117.118) ad
AUS : Austen : 2. EP OG Oe a
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: R-CH ! ‘ f
‘ c30 £93 1 | ERASE 1
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Toh
Po CNP32
7P
! re Se a = -
02
i H
Titel Dat ec Ft oS et Ail cs B ttPin end sal tin th aaia BAN heal aA wohl ah oa a Nhe ae MAG Bae Nak Se AE As tes a a ee a ee he ee nee ee ak BS nee eee Sas ee nseode pee eee eats has Meee tea ME Sit OR Ot, oa MO Cale see OO ee a end Se EO ae Sh gL a IAN oe ieee kel he els bara cnt sense sates eons ee Sao tat ce ea eels wre Soe te eee tl oe Pee ete oe weet a ent cael Stig Sane kD Anas
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27
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—
30
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