Onkyo TX-SV515PRO / II Service Manual page 12

TX-SV515PRO
Q309
LC7821N (Analogue switch)
Mu pa
(30)
Q)
BS
(29)
8)
RI
(28)
@)
Bt —t |
(21)
(S) LCOM1
(26)
© is RS
(25)
M 16
eS
(24)
@) LCOM2
(23)
® 7 KS (22)
a0) «18
RS
1)
(i) Leos ee
(20)
(12) Vee
(19)
(3) «CE
(18)
a4) DI
(17)
as) cL
(16)
Q309
Reset terminal. When power is tumed
on, the condition of the analogue switch
is not determined, but when this
terminal is "L", all analogue switches
are OF
20 RCOM3 Input/output terminals of audio signal of right channel.
21 VIDEO-1 Conrro! the analogue switch at the serial data.
TUNER
RCOM2
TAPE-1
TAPE-1 MON
RCOM1
TAPE-I' REC
TAPE-1'
TUNER'
VIDEO-1'
TAPE-1 MON
TAPE-1 of left channel.
LCOM2 Control the analogue switch at the serial data.
TUNER Input/output terminals of audio signal
VIDEO-1 of left channel.
LCOM3 Control the analogue switch at the serial data. 22
(-15V) 24
13 Chip enable terminal. Connect to the terminal 25
eon
FUNC of the microprocessor.
26
27
28
29
30
Input/output terminals of TAPE-1 signal
Inpur/output terminals of TAPE-1 signal
of right channel.
Control the analogue switch at the serial data.
Input/output terminals of muiti source
of right channel.
Control the analogue switch at the serial data.
i aoe terminal DATA of the microprocessor.
15 Serial clock input terminal. Connect to the
terminal CL of the microprocessor.
Q251
BA7625 (Video Selector Switch)
OUT
GND
INS