Sony FH-B7CD - Printed Wiring Boards -Power;Amplifier;Display Section

6-5. SCHEMATIC DIAGRAM—Power/Amplifier/Display Section— @ Refer to page 39 for IC Block Diagrams.
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26
ee ee ee eee eee eee ee eee eee eee CNSO1 ee Ake eT
Q406,456
RS26
100
roy
PERN
=
£410
MUTE
ante
[VR
BOARD]|
Woe
CF
R527 100 10% R417
We | LOCK ev eR ast'sb60 47K 28t8860 J IV JACK
|
[ossse/s)
oll
oats
My
——95
=
CN404
ALQH3020S nm STEREO I a <) Sana pty MUTE BOARD a Oot
REMOTE CONTROL Lol STGNAL TO MAIN 27 Ch) B R457 it s
RECEIVER
Lt
mare
‘Oo
BOARD
R487
eo]
Ts
10k
rena
Yti(<‘<
LL
880)
A
ae
1
|
rl cnr Lop O88] 3 ~ R473 ax tf
R533 100 | {See page 27.) | 0457 IN ot RY i for-Teh| S & 00 0.2 =s D J401
Q ° Oe : 2803860 : ifn MIC AMP -~L b- 98 CAT4 AT ean
— ie -2 y ~ es $s mw ——__.
Q575 ey RSTO pol, 8 ve ER (oy Me NY sp pe sey Te sie] Tae | | Ss
teporive
224
\
4
.
;
—
savy
CN4OIA — |
FLTS502 FLUORESCENT INDICATOR TUBE D871 2541 348 7 Fog tie MIC rT !
BBR RBs Be 2K _— | Nag _Av 9 SWITCH ______________ a ir fool Fe R627 4g C417 I nn wise 1
: 7 acon
oO oO sop a
“eee 1 oe ol rc cf _ San —
— nV TO MAIN ms iL HP-R HP-R reat | 0 |
cv PQ eetzo ef ew [ow
p | o.ono | MUTE muTe |
aa i (See page 27.) eal ita
IC504
.
menial
ce
ieee
|
~24V
CN403
DISPLAY CONTROL dh : +t +] .
BRAERI
ae
ell
«
cNgOI
|
|
J451
!
PTT
TT
tszo
on
8
“te
.
ov
|
oa
STEP
see
TTT
ms
|
!
apes
Sn
S ee | caz0 | | | ¢
23.4 TT | al = A EA |_| 8 iv || R454 °
208 KER 8 g yy = |_| , TUN] NG IC451 iit 4.7% $684
NaS
bing
LL
zl
al
8
;
1,
3
HEADPHONES
°
ne
My) al A ad h go aot
ce
Rake
|
1
aoe
=
|
ie
|
“
=
SHIFT
BANE
TUNING]
.
3
233 5 i Be $522 s7of $520 570 $513 4 SIS a eee | | nasi ¢ IC45 1/2) RASS
a : S A A 5 a |
Bags a a
2 2 u.—___-_
SYSTEM CONTROL 2° 5 7-44, a foz-Tels)
a
-20.
MOTOR
DRIVE
a
g a\ 8 i l
ip fo eo
| Lozsie}! IC801 STK4122-2_o3.6 _TPOWER BOARD) |
+ + R582
(yumPeR BoARD} ® mite
589
9595 6586
Fee OV is OOM 1800p
CAPACITOR] 1 i
,50ARO | | ae ST
C590
2.28 SOV
|
cs7g_
tk
fle]
TO
MAIN
*,
é
2.24
30V
METER
AMP
c570
Csts
1
BOARD
are
:
b
Ale
-
on
CN703
ce
a
all
eek
(See
page
27.)
Ca
ee
,
ear
rh
a
;
chy
tt
2°
I
ov
2593
R
;
=
3
R802
UST060M
256009
__
EXCEPT
OR
l
CN8OI
5
Ra
56K
US,
CND,
seetataa
ase
0
US,CND,IT
MODEL
EA,
AUS
MODEL
ono)
|
E,EA,AUS
SURROUND
oO
x
oe
i
.
a:
MODEL
5
ono
|)
08
2.2
SOV
FFT
£585,
*
Wa
ae
aa
oF
1
Q576
an
R564
Wa
ee
RESET
0
t7k
|
3
_——___|_|
cna
1°
ae
(hel
I
FLTSO! FLUORESCET INDICATOR TUBE
CO TB801
RESET
f
,
5
TO
MAIN
——<—
oo
O>=EeOVvroav—“"
seer
ee
Oe
+
es
o-oo
TT
IMPE
DANCE
[sno
J
CN706
{TRANSFORMER
BOARD]
USE
6-160.
pt]
cy
©
1 OQ
cl
mc a >
di !
; EB]
[SHIELD BOARD] _
(See
page
27.)
_
pee
Q907
POWER SWITCH Toxcley|
12V/-12V REG
Q501,551
|
DBFB SWITCH ROTTER
Q908
Q572,573
ICSO1
POWER
SWITCH
SURROUND GEQ AMP
SWITCH | -
RST
if
Q90i
TO MAIN "2 ae RESET
BOARD < 2.2 1/2W(US,CND MODEL)
(See
page
27.)
“—
R
1
1/2W(EXCEPT
FOR
US,CND
MODEL)
. -7V 3
i A.GNO = oo hs EXCEPT FOR
0
at
Q50!
R504
Sw
.
O7
goa
R901
E,EA,AUS
eel | 28C3860 4 M. GNA st CD ¥ en MODEL |
o | = pair E,EA,AUS
|
eon
=
B
wobeELSOCO
58
22k
As
EXCEPT
FOR
Note:
a I CN903 Fae A\ ss A EEA. AUS | @ All capacitors are in wF unless otherwise noted. pF: wuF
14 J Pe 23 PoacR "MODEL 5OWV or less are not indicated except for electrolytics
ss Lexa | at, CND,UK and tantalums.
0.068 TF + an Ce US (ND | Tei = Lt \ 1920 Ole = specified.
20 : . .
Aa Pe oP MODEL | AFR On pe e {fw}: fusible resistor.
Seo al\ all | fe en
9903 Be Ba = a Note: Note:
= ee — _ Ht 3 he components identi- Les composants identifiés par
ied by mark ordot- | une marque sont critiques
|
-24V
7X)
bem
A
rom
ted
line
with
mark
A
pour
la
sécurité.
9903 _-47.2 1050-2 oy R926 are critical for safety. Ne les remplacer que par une
I
2881187
s
1
35M
<
Replace
only
with
part
|
piéce
portant
le
numér
ci
RV5OI-2
—-RVB02-2--
RVSO3-2
RV5O4-2
RVSO5~2
[=
7
EXCEPT
FOR
EFA
AUS
number
specified
OG
ero
speci-
250k 48 250k 4B 250k 4B 250k 4B 250k 48 22 V7eWUS,CND MODEL | US,CND US,CND,UK MODEL Pp , le.
oe) _ hte) __ ne) fore) Tome] Ot ~ oe NE eeee OT FOR UscMOneL) MODEL _MObeEL MODEL”
>: B+ Line
: B— Line
Voltage is dc with respect to ground under no-signal (detuned)
conditions.
no mark : POWER ON
@ Voltages are taken with a VOM (Input Impedance 10M @).
Voltage variations may be noted due to normal produc-
tion tolerances.
e Signal path.
> :FM
e CND: Canadian mode!
WG : West Germany model
IT : Italian model
EA : Saudi Arabia model
AUS: Australian model
—29— —30— —31— —32—