Sony WM-DD11 - Page 8

2-3. SCHEMATIC DIAGRAM
1 2
* See page 6 for IC block diagram.
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Note on Schematic Diagram:
e All capacitors are in uF unless otherwise noted. pF: wuF
50WV or less are not indicated except for electrolytics
and tantalums,
All
resistors
are
in
2
and
'/,W
or
less
unless
otherwise
specified.
%
: indicates tolerance.
EE: B+ Line
e [__]: adjustment for repair.
Total current is measured with no cassette installed.
£312
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DRY BATTERIES
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Pa
REW
FF
SIZE"AA™
(1EC DESI@NATION
R6, JIS SUM-3
OR EQU1 VALENT)
2PCS. 3V
TOTAL CURRENT
Pa: "ana ee
REW:72MA F removed
FF: 74mA
Tope installed
Tope Top Tope End Shut~ott
96mA 105mA = 126mA
130mA = 95mA _—
99mA 134mMA
13 14 15
TEST POINTS, WAVE FORMS
AND OPERATING VOLTAGES
Iceol Ch) AC.- RANGE
70mVp-P
a
- 0.94mS —|
Ic60! DC RANGE
+
0.5~ 06Vp
ov am
+ 0.94mS +]
ic6ot @) AC RANGE
ate
Zt
- 0.94ms —|
(c60l -(2) AC RANGE
+
26mVp-P
L
Lo.94mS |
DC RANGE
ee
ov
| bo
0.94mS
(4) DC RANGE
-
1,25V p-p
o- 4
slogq
ms
Power voltage is dc 3 V and fed with regulated dc power
supply from external power voltage jack.
no mark: PLAY
( ): DOLBY NR switch: ON
Voltages
are
taken
with
a
VOM
(Input
impedance
10M
Q)
Voltage
variations
may
be
noted
due
to
normal
produc-
tion
tolerances.
Waveforms are taken with a oscilloscope.
Voltage variations may be noted due to normal produc-
tion tolerances,
Signal path.
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