Sony SEQ-555ES - Schematic Diagram

SEQ-555ES SEQ-555ES
5-4. SCHEMATIC DIAGRAM _ @ Refer to page 36 for notes.
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16
{PIN JACK BOARD(I/4)] ; a [ANALOG BOARDJ!C20! (172) Num45600 _ICIOI_NJM4560D Q108 DTCI24ES ICl02 CX770, 0102 DTAII4ES ,QIO! OTCII4ES
BV PINK NOISE OSC LINE AMP ————————— SWITCHING (LINE/PINK NOISE SELECT)
IC351 CX7977
——L-cH—— FUNCTION SWITCH
1C353 CX770
SWITCHING
LINE OUTPUT((O)
CNU351-1
LINE TN Ce (2) LINE INPUT
CNU353-1
NJ 362-1 (aux REC ouTPuT 1@) REC OUT |
INPUT L
ov
CNJ
354-1
oi REC OUTPUT 2Q) REC OUT2
CNJ352—3 AUX 2 INPUT :
AUX 2
p.03V
ie as {
oy 4.6V
(7) TAPE | INPUT DATACE)
0,03V
STROBE (7)
oy,
oy P TAPE 2 INPUT
A
@3)
CNJ353-3 ©
TAPE!) ¥
CNJ354-3
TAPE 2
D201 HZI2A2
QI03_ DTCII4ES
SWITCHING
(LINE /PINK NOISE SELECT)
DTCI44ES
Qu7, 118 = DTCI44EsS
LINE MUTE
REC MUTE
Q106,107 2S¢2878
MUTING
1C105,106 NJM4560D
£Q AMP
IClO7 CX770 Qi04 2SAI048
SWITCHING QI05 DTCI44ES
SWITCHING
(LINE/MIC SELECT)
QUO DTAII4ES
QI09 DTCII4ES
SWITCHING
(LEVEL SELECT)
TO
(A)
MICRO
COMPUTER,
QU9,I20
2SAI048
REC MUTE
J
[MIC JACK BOARD]|
|
D305
RO3.0ELI
2
NJM4560D
AMP
TC2OII7
a Mi
vy *
_.
a
5 _—— g
u ———
a |
4301 tt TT
[MIC]
(ClOB—H12
CX7976
£Q VOLUME
cool
0,01
FREQUENCY
CHARACTERISTIC
—— RCH |
[PIN JACK BOARD(I/4)) IC113—122
fm cn eS a a a a ee NJM4558D
RESONANCE CIRCUIT
a eS ha a ar a I a hes a es Re as an eT Oe rca a es
CNJ353—4 SAME AS L-CH :
(TAPE 1]
| ——R-CH
CNuU354—-4
SAME
AS
L-CH
TAPE 2