Sony MX-P21 - Page 17

4-2. MOUNTING DIAGRAM (1)
@ DC-DC Converter Board
MX-P21 MX-P21
4-3.
SCHEMATIC DIAGRAM (1)
@ DC-DC Converter Board
B
10
@ Semiconductor Lead Layouts
MB3759 2S8A1175
i 2S8C2785
Note:
line
if
n+]
@ O—-: parts extracted from the component side. ne
@ * : (US) ...... Serial No. up to 820100 or :
(Canadian).
.
.
Serial
No.
up
to
730000
dot
12
n
(UK)
......,
Serial
No.
up
to
660000
aoe
Mew
:
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sce
ie
ae
ial
No.
8201
lat
CB
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anadian}).. .o€rla oO. an ater 2SC2334
(AEP)
2
j25
2-8
All
~~
;
oe
eee
Serial
No,
660001
and
later
.
: pattern
a a
|
\
ca =
TO METER & PS
BOARD
(INPUT)
ESAC31-02D ESAB85-009 RDS.6EB3 ERB44-02
. RD7.5EB3
Ss 182348H
cathode '
alia Ky cathode
~. anode
anode
10
a ——————
Q4,5
2801049
INVERTER
Q2
28C278
Q6
mane
\ 28C2334
RIPPLE FILTER
D2
RD7.5EB
C10 RQ
1 0047/50 1 47k
a4 =
av MD = 02
| > Ri
o,. OV
7.2V
RI2
10k
4 100 Gro a : 0 POWER TRANSFORMER hy
H = BHIELD. ‘ :
= D3 04
a oi So 36 ySEC es
25V - pee
=] a i6Vp-p
~15.3V bay Bo 5
Q7 98 D8 arr) D3,4
2802334 2SAl012 ESAC3i-02DC ESAC31-02DN 1$1588
RIPPLE FILTER—— RECT RECT
xR
Note:
e@ All capacito
50WV or le
and tantalur
e All resistors
kQ : 1000!
Eat : non
("—_] : adjt
Readings ar
VOM (50 ké
: (US).
(Canad
(UK) .
: (US) .
(Canad
(AEP)
(UK).
e
e *