Yamaha RX-V381 Service Manual page 78

A B
RX-V381/HTR-3069
1
OPERATION (1)
(Side A)
2
DIGITAL
(CB221)
FL_PON
FLD_N_RST
FLD_N_CS
FLD_SCK
FLD_MOSI
MIC_N_DET
PSW_N_DET
KEY1
KEY2
3 REM_IN
+3.3S
VOL_RB
DGND
VOL_RA
+3.3M
5D_PON
DGND
V_BUS
+12A
-12A
AUXR
E
AUXL
AUXE
MIC
MAIN (2)
(CB47)
4
OPERATION (6)
(CB471)
DGND
DIGITAL
+DATA
(CB281)
-DATA
5
6
• Semiconductor Location
Ref no. Location
Q4007 I3
Q4009 I3
7
78
C D
CB404
TUNNING
CB406
USB AUX
5V 1A AUDIO
R, T, K, B, G, F, L, V, S models
E F G
AM FM PRESET
SCENE
RADIO CD TV
STRAIGHT PROGRAM
H I
Remote control sensor
MEMORY INFO
(PAIRING)
BD
DVD
TONE CONTROL INPUT
J
F2
+40F
F1
UGND
+5.5U
OPERATION (4)
(CB526)
+12A
MIC
E
-12A
MIC_N_DET
PSW_N_DET
DGND
FG
OPERATION (5)
(CB451)