Sony STR-AV220 Service Manual page 8

3-4, SCHEMATIC DIAGRAM — MAIN SECTION—
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24
[DISPLAY BOARD] FL30l FLUORESCENT INDICATOR TUBE
REMOTE | [HP BOARD]
DETECTOR [ren ee eg
|
[HEADPHONES |
IC BOARD
"|
8 [ ARDY Ml
| : .
R304
a
C601 | — — ——— - —__. - —___ - —__,,
| {SP TERMINAL BOARD)
e a ~~ Oo nonw~7e DOH MYM wesw inn we Mm - Oo | j ~ ~ !
e ee & FeBeAnraoawranneage 1¢é01 (1/2) Q60I ] | t STK4182MK2 ; | CURRENT n629 9602
POWER AMP DET 33 AN SWITCH
aw Lt -
LL tt tt oot tt 2 |
5 i +
[- |. : "ELL [.. wiih = © |: I
RB302 | | PORN 330p I fen: Fol ()
. 100K45 |
;
—fof fof — --)
a — 4VAC he ees
' = I
O © | p I PERE (+)
| fa
t
__.. | 5 ° | SPEAKER] !
AV320
A oe |_| Reine IMPEDANCE
W820. === [ ae em O)
sys.Pow R315 47k $312 $313 8314 ' * C658, cea} | (-)
!
Sh prove) = ~ 60
ye !
! ®
7% 220 | $315 $316 $317 $318 + Vey Po Po | a| bb (+)
| ln ES SS Se Ss a !
! J | Sj
| [eke Toy] 5 Bp ° ° | S602~3 s602-4 s s
ss ee id - -
| IC304 | 9319 3320 $321 $322 | C456 A\ fof bof pt GND | | [7 MOTOR DRIVE a7 | ee] oe | 2280 Fe ot Le. i
uSTO060M fo_° o_° o_° o_o ee [ ]
| 9
x e z [s] Ls] [o} PhP
SPEAKER SWITCH BOARD
Ly S = ae $6
° E $323 $324 $325 $326 al na _
3 Zz = 06 Sf} = cis mts 1 |
| F = ustoéom fo_° o_° o_9 o_° aA
im
SHIFT l ot
87 Y |
: |
0) , !
I 1 -0.1 0
- - C653 TTTW!
$800 > w " cert
Q.22/° C. tk Q651 325 ys pr" 254988
USTO60M (1) l -FA Q603, 604 L651
e 140! (2/2) a switen
rE - & si0 171 08H o STK41 82MK2
*
1326 I ; POWER AMP
usTd60M Ul est
*A
!
t
| pao Ae
| l
| . 1 p8i3
R637 \l yl
9302-304 n\ R633 ! wea NT fy
| LED DRIVE [STAND BY BOARD) |
' TTT a Pa 1 J av320
L ° 1
Qo
z os] | |
Qe ja m0 [ic \ 9 | os ia]
tS ra |
o R322 !
R324 270 | [
270 4 | |
fork) azo2__ | - |
31 WEY ascadod Ss is |
ee ee 4
:
AV320 I oe
CNJ304 CNJ302 CNJ301
ee ee eee ee)
SSS OR Se 8704
~25.6 ? ,
—— wang) EE Ta
Q
—38.5 25B7345 Ratt a8
co mo
|| | |
A rips**S
199
ee ee 7a
m= SSH ee ee gee ET —_ - ——— - ——__ - ——__- [REKKEREEKEREEEE)
[MAIN BOARD] Hie Sa a i 1 SP.RY
. R719 = m a @ R721
« prio 8 2 = aries a o
USIO6OM ¥ fs Bae j.g2 ae
2 5G 2 res aETZA swe
3 +8385 S258 ER 25 R720 Q704 —709
SWITCH me l
|
Saeee= RU10 C714
ww TT
'47K 47K | 47K 47k
|
J501 me EO EO
mp a= FS 4 ~ AV220
pt cns701 4p |
|
1? 9 9 QI — ee
CS I
celia _ AV320
a a a i i i, AS a 2 OT cw ow = A\ 1901 Note :
RELAY DRIVE | cee meee
+ *A, *B: See page 4 for Note on Ceramic Filter (CF1, 2)
: — een Cd : ! ! ! Tt cenmcton
TK : : + . REC OUT] -5 (@) i z ees + All capacitors are in u F unless otherwise noted. pF: un F
-| Kegs | | MUTING 5 | 0503 avs03 avso4 SURROUND 5OWV or less are not indicated except for electrolytics
. z R511 1B.
mom-s@—0 we SWITCH a n ed LT i TAs
oFFrIB 168 ns and tantalums.
ee ae pa | md
Sw
- All resistors are in Q.and %W or less unless otherwise
AUDIO OUT|—3 (@) 2 j CNSOI R501 fj
I 1502 A
re Pag WES ta ANS2O 5 F VOm cRgL, T O . - e
+
specified.
K '* 1 . ¥ :
0403 SY TX2088 MUTE 9503 PT v 0501 ; - A : internal component.
2sailis ( )
(30) n EF a SURROUND i 2503623A -L asi! Rv504 15. 2SK246GR ~ .
5 BOI sk RaDS £ OBFB | B9Rf 3 RB) | "15, / DBFB | 2 » EW: nonflammable resistor.
zZ R usto60M 4 700% ' agen ee , j | 3 A
. +
<>
- ust de0M | oO) ! 50k os 2sc3409 | ° uu "abe om cna Ge Ok OO Z c] oh Note: Note:
. +4 e ~ : . . . oe Na | asis 1) aggay sit | R502 eth) (7 Le Gcouney 120 60Hz The components identi- | Les composants identifiés par
6P 9501 ™ Up —~|- PA ~~ 0,085 PT he 0 : my G3, Abe iOOW MAXT 3.34
fied by mark Aor dot- | une marque /f\ sont critiques
eS i +L ght | 510 a0H a pt
380 LPTTIey 200V TRANSFORMER Sone 1220
ted line with mark A pour la sécurité.
Sar 7 av
PWR. OBFB Tol fro] ' 4 1 a
Naval aa are critical for safety. Ne les remplacer que par une
+15V (pd ap 1s¥y>——J eee ae | 4
a | i See TIT Go ~ oe ee 7 TTI I LT. | [ | cgot Replace only with part piece portant je numéro spéci-
_18y iim a —¢-15y Bae VA ; S _——- | | Bay | number specified. fié.
RAZ CAI | ie <R-CH— PoE -+t——l- 1 | gyRRouNe 0551 o (POWER BOAR D) | -
0 OY Lt nar I lorF: 0.
2sk246GR
|
1C401 (2/2) o O GNB 1 jsov ft ! ° TONE AMP DBFB - ' | : .
br - » R557 + ASSO . : . uPC4S70HA — Loe] Lo <--> : I Lasso 0° SS, L + nse BH FBP Fs a (VOLUME BO ARD] [L__]: adjustment for repair .
| RAS 3 16 cnysol ! Rate 37 [0 ;| "2k os sss 0 oa Vzk C503 ! cnpgoz [POWER] | | * Voltage and waveforms are dc with respect to ground
. 0 at " 0402 as? | 28
| nf 53 e Sov va "8 0-55» | don I
under no-signal (detuned) conditions.
° 282603 | cate 2sc7e03| & 1 2SC3623A -L
us i) | PWR. SW ;
la utr | ie "fF een _- ¥ Uke * no mark : PHONE
50V BUFFER [#16 AV 320 RV503 0 C559 Oe ne OO Or J . .
~14 -14 an Lat —4A Sat 4.6 + i 50k
R519 ak wh | POWER SWITC * Voltages are taken with a VOM (Input impedance 10M Q).
~) ) A " Ae 553 0° base ysiogon 100K nese 0852 ' BOARD Voltage variations may be noted due to normal produc-
I C451
DS D | pats Ss ast] Sos MUTING RSSI PT SURROUND R521 () ik 28C2603 I A
:
. 190p 4.7K R421 820k 2 l 10k C553 T ON:0 8.2k YX oat | + CNJ901 I tion tolerances.
RALO C463 C413 C466
L 0.0068 OFF =11.6 C514 5 (2) + | | . Signal
path
47 . We ; 1
sik oss og, ota, | tat) GR Gap yO uae |= Age Be] | B nt dbooe Layee -G He ! SwiTcneD 2B !
— eT ae ne "e SuRRUND "ornare" SHE 2s 02don 10501 G70 ot ! agiany ! e2)9) : PHONO
: +18. 47K | 602 =
25C3623A 25C3623A i SOV #PC4570HA
af 2P SWITCH _«OFF:-12.8 SURROUND {TONE BOARD] t . .
- a ee AN 220
— 13 — —14— — 15 — — 16 —