Technics SH-Z200 - Total Frequency Response; Block Diagram

Mi DISASSEMBLY INSTRUCTIONS
saa
No.
|
How
to
remove
the
cabinet.
Ref.
No.
|
How
to
remove
the
front
panel.
1
1_— 2
@ Remove the 5 setscrews. (@~ @)
i].
@
Pull
out
the
4
connectors,
(J1
~
J4)
from
EQ
P.C.B.
@ Remove the 3 setscrews. (@~ @)
@
Pressing
the
2
claws
on
the
right
and
left
sides
of
front
panel
in
the
direction
of
arrow
®
.
@
The
claws
project
(at
3
portions)
from
the
front
panel
are
engaged
with
the
bottom
board.
Cabinet
Bottom board
How to remove the band
level control volume P.C.B.
Procedure
1—2 —»3
@ Remove the 3 claws ( @)).
@ Remove the indicator panel.
@ Remove the 14 knobs,
@ Remove the 3 setscrews. (QM ~ @ )
@ Remove the 6 claws ( @) ).
@ Remove the P.C.B.
is
Claw b)<— y |
(6 points) vA
How to remove the band
pass filter (EQ) P.C.B.
@® Remove the 3 buttons. (rec mode, tape monitor,
equalizer)
@ Remove the 5 setscrews (Q~ ® )
@ When setting the EO P.C.B., tight the screw@M, @
first,and @ ~ ®.
Ref. No.
4
Procedure
1—>4
Front Panel
-) Gy 4/40] 0), Ey 4/10] 0
Mi TOTAL FREQUENCY RESPONSE
This frequency response can be adjusted to the desired point, within a maximum range of
63 Hz to 16 kHz (the level can be varied within an adjustment range of +12 dB) by using
the 14 band-level controls, 7 each for the left and the right.
Frequency response (+ 12dB position)
dB 63Hz 160Hz 400Hz1kHz2.5kHz6.3kHz16kHz dB ;
sai
+6
OD |
D 0
|
—6
—12
i
Frequency
Mi BLOCK DIAGRAM
Control Amplifier
IC1
(Left
channe!)
on
S3-1 O
Cine oor]
off
C1.(2/2)
7 6
(REC MODE) } £Q
tape ; |
PLAYBACK)(OQ}—_0__ 828 Sea
source SU
$2-1 JO O
< REC OUT IC straight (EO)
| Y tape |
|
epee Cane |
tees 4
LINEIN
»(OJ
(eens
)
|
| MONITOR |
source X | | off
O
3
N WO
Buffer
IC1 (1/2)
bh)
PY +12dB 7
Q3, 04 Volume knob LED ty :
(ps
Power ind. 4
(i
VR1~VR13
4 ee
Muting NA Nay,
circuit
f
63Hz
~
16kHz
Qa ee ee er
—12dB
Reference
5 kag oO .
P.T.
(POWER) 2 +t- © =
Reference
: