Sony TC-WR545 Service Manual page 16

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
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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 ©
O—-O—-O-8 i ae te ba ae !
2 ROTATION BET
- ~ a ~ 2 = . -
ns a - « 47k 47k 1
i
Bo See ee ee ee ee ee sat ee | !
re) re) $ ive a 2 2 2 : a H 8 g 2 Ss & 2 2 £ & H !
HRP101/HE101
i RECORD/PLAYBACK/ERASE 1031
HEAD
aaa ae: I
a a ee Fathi] :
:
! fe 5
CNP31
1 kK 1
L-CH 3 Ol] +7.5V
' N Ps q Poy :
| s 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 Ne QUICK
SD :PB(DECKA) z
Este NC
>» : REC ( DECK B)
Ts P
.
a <a H H i [> :PB(DECKB) P | : 48 gs avid
a, Cree ten S go
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AUS : Austen : 2. EP OG Oe a
: Te et |
: R-CH ! ' f
' c30 £93 1 | ERASE 1
4 . ' : 1 O 2
a 3 i T
Q| |
! i X gE Toh
Po CNP32
7P
! re Se a = -
02
i H
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