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RX-5220LS
RX-5220LS
:
SCHEMATIC DIAGRAM (AUDIO CIRCUIT) MODEL RX-5220LS
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SS
Dsor
Qso1
D302
Qia1, 201
Daa
D303
Q302, 303
Qso4, 505,512
Qs01.502
Qs06, 510
Dso1
Dsoa
Q507, 508
RVDKB262D
2802001
SMI02LF
280945
MAIIIOTA
MAIO7STA
2SC2001
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2SA564
182473
MAI50
28(828
AOC
BIAS OSC
SWITCHING
INTMICMUT
REGULATOR
REGULATOR
REGULATOR
CONTROL
CHIRP OSC
SWITCHING
SWITCHING
SWITCHING
SWITCHING
Q503
2SAl
Notes:
Switck
1. S101-1~S101-9
....... Record/playback switch in ''playback"' position.
8248109 fo
ered
tabndaieas Voltage select switch.
VR202 .........
ec eee Playback level adjustment VR.
2. $102-1~S102-6
....... Function switch in "'TAPE"' position.
92 STNOns
a ateusissey
eects FF, play/rewind switch in '"'rewind"' position.
VR103, 203 ............ Volume control.
SeS108 eee
ce does
Meter switch in "OFF" position.
10. $111-1~S111-3
....... DIN/MIC switch in ''DIN" position. (1... DIN, 3... MIC)
VR104, 204, 105, 205 ... Tone control.
4. $104-1~S104-3
....... Tape select switch in "NORMAL" position.
11. $112-1,$112-2
........ Chirp ON/OFF switch in "OFF" position.
VR304)
cts ocaeedsieazcs Meter level adjustment VR.
5; S105
cscns get
teed Beat proof switch in "'l' position.
42. S118 eine
tor dach eee ns Memory rewind switch in '""OFF"' position.
14. The mark
('w) shows test point. e.g..w =Test point 1.
6. $106-1,S106-2
........ Motor ON/OFF switch in ''OFF" position.
13.
VR101, 201 ............ Bias current adjustment VR.
Te SHOB so esisavd
seve Oo els AC/DC select switch in '"'DC" position.
15. DC voltage measurements are taken with electronics voltmeter from negative terminal of batte
<
>... Timer-ON
[
]... Battery position, Q101, 201, 301... Record position.
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