Panasonic RX-CT900 Instrukcja serwisowa - Strona 6
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RX-CT900
RX-CT900
SCHEMATIC DIAGRAM (for operation circuit) (Parts list on page 22~28.)
Notes:
1. S1-1~S1-7:
Record/Playback switch in "PLAYBACK" position.
35. VR1:
FM VCO adjustment VR.
(P...PLAYBACK, R...RECORD)
36. VR101:
Deck 1 playback gain adjustment VR (Lch).
AL OPERATION
SWITCH
CIRCUIT
2. S2-1~S2-3:
Function select switch in "TAPE" position.
37. VR102:
Deck 2 playback gain adjustment VR (Lch).
(T... TAPE, R... TUNER, A...[CD/AUX)
38. VR103:
Record level adjustment VR (Lch).
3. S3:
Editing/FM mode/Beat proof switch.
39. VR111:
Graphic equalizer control (100 Hz)/XBS level control
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ved
Sais
air
iwie
Sani
S3-1; Editing mode switch in "MIC" position
VR (Lch).
ema
(Men 2
(Mem 6)
(Mem 51
(Adina
isteep)
(ner)
(Royer)
blay
ssid
:
(M...MIC, N...NORMAL SPEED,
40.
VR112:
Graphic equalizer control VR (330 Hz, Leh).
ey
oye Bela
1
H...HIGH SPEED)
41. VR113:
Graphic equalizer control VR (1 kHz, Lch).
rye Pagan]
so]
$3-2; FM mode/Beat proof switch in
42. VR114:
Graphic equalizer control VR (3.3 kHz, Lch).
Men
As
{on Time)
i
com
"STEREO/!' position.
43. VR115:
Graphic equalizer control VR (10 kHz, Lch).
cal
at
al
ryoissidara ian
(S/I...STEREO/I, S/HE...STEREO/#1, M/
44. VR116:
Volume control VR (Lch).
oa
i
ae
J
HEL... MONO/HED
45. VR201:
Deck 1 playback gain adjustment VR (Rch).
(disploy) | sMemory) | (M.scon
4
4. S4:
Deck 1 tape select switch in "NORMAL" position.
46. VR202:
Deck 2 playback gain adjustment VR (Rech).
oy
oS
ial
avenge sara
(N...NORMAL, Cr...[METAL]/CrO2)
47. VR203:
Record level adjustment VR (Reh).
, a
'
D410
5. S5-1~S5-2:
Deck 2 tape select switch in "NORMAL" position.
48. VR211:
Graphic equalizer control (100 Hz)/XBS level control
:
t
4
h
cae
OPERATION
(N...NORMAL, Cr... [METAL]/CrOz)
VR (Reh).
ee
6. S6:
Dolby NR switch in "OFF" position.
49. VR212:
Graphic equalizer control VR (330 Hz, Reh).
Dat fo
.
7. S7-1,S7-2:
XBS switch in "OFF" position.
50. VR213:
Graphic equalizer control VR (1 kHz, Reh).
as
AC CONNECTION INO.
8. S8:
Mic switch.
51. VR214:
Graphic equalizer control VR (3.3 kHz, Rh).
Baeergn
"i Sv
eyolssiaaTa
ae
:
9. SO:
Deck 1 play switch.
52. VR215:
Graphic equalizer control VR (10 kHz, Rh).
RESET
-- OV
avorsstssra
Te. al
pags i cr4oz
10. S10:
Deck 1 motor switch.
53. VR216:
Volume control VR (Reh).
\
se
ae
Q
CD stanay
i
14: S11:
Deck 2 motor switch.
54. VR302:
Record bias (CrOz) adjustment VR.
[ea
eRe
as
D i c e y
TO romen our
12. $12:
AC/DC select switch in "AC" position.
55. VR303:
Record bias (Normal) adjustment VR.
1C402
Rr
be 4)
—
13. S401:
Station memory switch (8).
56. VR304:
Balance control VR.
4
TT
@) rato
14. S402:
Station memory switch (4).
57. VR501:
Tape speed adjustment VR.
s
PA
©) earrery
15. S403:
MW switch.
58. DC voltage measurements are taken with electronics voltmeter.
2
agv
a8
ao-386
©) ~
se Bhuain
16. S404:
Station memory switch (7).
The negative terminal of the battery provides negative meter
3
aos
VR UP | cesaoe)
17. S405:
Station memory switch (3).
connection point.
8
qaio 3308
OY **
18. S406:
LW switch.
No mark...PLAYBACK,[
]...RECORD,(
)...AM,<
>...-M
3s
TO)
V8 own
19. $407:
Station memory switch (6).
<
»...HIGH SPEED
eae
20. S408:
Station memory switch (2).
59. Battery Currect: Vol.min............. 200 mA (Tape Playback)
Ors
21. $409:
FM2 switch.
Wolo (aie «hoes as haceiGipel
eee hier ces 1450 mA (Radio)
one
22. S410:
Station memory switch (5).
1500 mA (Tape Playback)
23. S411:
Station memory switch (1).
Measurement instruction
24. $412:
FM1 switch.
Radio: FM 60 dB, 30% Mo)
25. S413:
Adjust switch.
Tape: 315 Hz,0dB
oe
i
26. S414:
Tuning/Time set switch (—).
60. The mark (MM) shows test point e.g.
=test point 1.
Fa
27. S415:
Sleep switch.
61. Important safety notice.
Ge
28. S416:
Tuning/Time set switch (+).
Components identified by A\ mark have special characteristics
srenes
i
29. S417:
Display switch.
important for safety.
@isione
1, ain
30. S418:
Timer switch.
When repiacing any of these components, use oniy manufacturer's
1c401
e —4) ctock
CIRCUIT
31. $419:
On-time switch.
specified parts.
Gite
sees
32. $420:
Memory switch.
wuTe
$3. S421:
Operation switch.
GND
:
34. $422:
Memory scan switch.
h
\ ew stereo
R406!
sue Bp
IK
--0
v
®This schematic diagram may be modified at any time with the development of new technology.
cc: FM SIGNAL LINE
mm): AM SIGNAL LINE
E>: FM OSC SIGNAL LINE
L040!
(LDBU93974AZ)