Sony MHC-5500 - Page 28

3-2. BLOCK DIAGRAM
-L-CH-
CNP30I1I/41
INPUT L
H008SI
HPII
PLAYBACK HEAD
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1 RYSI
PB EQ AMP
IC8\A
PB EQ AMP
IC8I8
~V41A
PLAYBACK
LEVEL
AOJ.
~V-4_1_8 _ _,
PLAYBACK
LEVEL
ADJ.
DECK A/8, AMS A/8
SELECT
\C305
R-CH f-----+•
r--0
RELAY DRIVE
Q808
1
R-CH
EQ SWITCHING
Q 103
R-CH
R-CH
AMS AMP
IC3061I/2)
AMS AMP
IC306
SWITCHI NG
Q303
LINE AMP
\C307
EQ SWITCHING
Q30I
SWITCHING
Q304
AMS/8S
CONTROLLER
Q302
OOLBY NR
\(302
LINE OUT
RECORO EQ Y-
AMP 11 i--<1~-- --t----t-1--------+------------------t----t-,-t-+-----
RV42
RECORO
81 AS IL 1
AOJ.
HE 11
ERASE HEAO
~
-R-CH-
SAME AS L-CH
CNP30I l2i41
SI RCS
IAUB)
777
RV62
RECORO
BIAS! R 1
AOJ.
I C 30 3
RECORD
MUTE
102
R- CH
RVIOI
RECORO
LEVEL
AOJ.
BIAS REG.
,-------,. Q 81
Bt
S\RCS
QBl?,818
RE CORD
BIAS O SC
Q82,83
SIRCS
Q8I6
w
>-
C,
"'
u
w
De
1;
1-
~
~
:::,
"'
0
0:,
'-'
0:,
:::,
<:!c :::,
.,
"'
.,
,,,,
8+
D8I3
1
HIGH SPEED)
,,,
D815
1
CD SYNCHRO l
-8-
lg
~
"'
ro
z
g;
0:,
0:,
0
:::,
:r:
C,
C,
Cl
:r:
'-'
EQ SWITCHING
Q308
BIAS ON ,OFF
Q305
BIAS ON/OFF
Q306
BIAS ON/OFF
Q307
>---------1241-----------~
ICO IL'.D
'
'
«
«
V>
"'
w
«
V,
B+
,,,
LED OR IVE
Q8I3
0812
IAMS /BLANK SKIP)
,,,
080 6
IFWDI
,,,,
D807
IREVl
B+
li li li
SYSTEM CONTROL
ICSOI
,,,,
LED DRIVE
Q8I I
0808
IFWDI
,,,
LED DRIVE
Q8I2
D809
IREVI
,,,,
D8I0
IPAUSEI
,,,,
0811
IREC 1
LI NE MUTE
Q807
42
w
1-
:::,
:,a
w
z:
_J
S8I4
AMS/ ~--
BLANK SKIP
S817
CD
SYNCHRO
TAPE
DUBBING
1~
cf'
SW\TCH
IC308
"'
t
""
13
MOTOR
0 N/OFF
QBOl ,802
U-
U-
0
12';
De
2
0
::e
;
15
1~ l<l~
' "' ""
:r: o._ '-'
<i ""
~
>--
w
""
14
[I!
-9-
!;
>-
>:::
:r:
::e
V>
g
«
""
S80I
[gJ
~
L\NE MUTE
0101
ROTATAION DET
Q12A
::
CNP30I13/41
OUTPUT L
l-I008S)
OUTPUT R
(-IODBS)
SWITCHI NG
Q I IA
SOLENOID
HOLD
Q803
SOLENOID
KICK
Q804
MIIA
PM I IA
r-------------------<..>---,, Si IA
HALF OET
lj 1;;; 1~ lo:, lo:,
>-
=:,
I"' - :r: "' ""
:r:
:::x:2;cno..~
« ,._ ""
«
S802
w
Cf
S807
[PAUSE!
◊
S803
IT]
?
S808
[B
◊
S I4A
Cr 02
SWITCHING
Q 1 18 ,---,,~,
M 118
SOLENOID
HOLD
Q 805
Sl28
':==~:::==.iz ERASE PROOF
, ISIOE Al
ROTATION DET
Q\28
S I3B
r--<.J-~ ERASE PROOF
ISIOE 8)
--s..r--.-, S 11 B
>-
"'
:r:
u
=
"'
HALF OET
,-----.----u-~ SI 4B
~1~
«::::
I O
"'
c--
,~
28
S809
GJ
~
Cr02
,---i---1,-.,t-_;->-,_- _- -TT S 1 5B
M ETAL
:::
w
o._
>--
EQ CONTROL
----; CIRCUIT
1(303,304
LEVEL SHIFT
Qßl4
t--t---B+
S804
~
?
S811
~
9
S805
~
9
S812
~
◊
DECK A
DECK B
POWER OFF DET
~------------_, Q705 ,706
S813
~
8
8+ ------+-----~
112V)
T
0
♦
RELAY
B+ ,..__---t
15 VI
S302
looLBY N~
OFF
+
A
!
C
VOLTAGE REG.
Q703,704
B+
17 V)
8-
1-?VI
VOLTAGE REG.
Q?Ol ,70 2
VOLTAGE REG.
1(701
VOLTAGE REG.
IC702
CNP30I14/41
RECT
AC
0701- 706 1----+--V
-10-
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