Yamaha RX-A4A - (4); (5); (6); (7)

JIHGFEDCBA
1
2
3
4
5
6
7
68
RX-A4A
W4401
W4402
W4781A
CB453
CB451
CB455
W4501
CB454
W4702
IC451
W4781B
W4304
W4303
IC432
IC431
CB431
W4302
W4301
1
3
6
4
4
5
1
8
4
5
3
1
USB
SELECT/ENTER
DGND
FG
DGND
USB_VBUS_PON
+3.3M
+Data
STBY_LED
-Data
PSW_DET
Vreturn GND +5.5V -12V
+3.3M DGND TSNS_SDA DGND TSNS_SCL TSNS_IRQ TSNS_N_RST
+12V MIC_N_DET MIC MICE
FUNCTION (2)
(CB647)
OPERATION (8)
(CB481)
LCD MODULE
HPR
HPE
HPL
HP_N_DET
FUNCTION (1)
(CB610)
FG
VOL_RA
VOL_RB
DGND
FG
VOL_RA
VOL_RB
DGND
DGND
DGND
+3.3M
STBY_LED
PSW_DET
DIGITAL
(CB135)
Standby
indicator
YPAO
to chassis
PHONES
to chassis
to chassis
to chassis
VOL_RB
STBY_LED
DGND
LCM_A0
LCM_SCK
LCM_N_RST
DGND
BUZ_CTRL
DGND
TSNS_N_RST
REM_IN1
PENC_RB LED_GND
PD_LED_R
PD_LED_B
ZN_LED_G
AI_LED_R
AI_LED_B
Kathode VG XV0 CA1N VSS LCD_N_CS LCD_N_RST LCD_MOSI VPP
DIGITAL (CB86)
VOL_RA
PSW_DET
+3.3M
LCM_MOSI
LCM_N_CS
LCM_BL_PON
+3.3M_BL
TSNS_SDA
TSNS_SCL
TSNS_IRQ
PENC_ENT
PENC_RA
+5LED
PD_LED_G
ZN_LED_R
ZN_LED_B
AI_LED_G
Anode V0 CA1P VDD COMSCN LCD_A0 LCD_SCK EXTB NC
VOLUME
(Power)
Remote control
sensor
• Semiconductor Location
Ref no. Location
D4301 C2
D4304 D3
D4305 D3
D4306 D3
D4307 D3
D4308 D3
D4401 H3
D4402 H3
D4403 H3
D4701 C5
D4702 C6
D4703 C6
D4781 I5
D4782 I5
IC431 D3
IC432 E2
IC451 E5
Q4701 C5
Q4702 C5
Q4703 C5
Q4704 C5
Q4705 C5
Q4706 C5
Q4707 C5
Q4708 C5
Q4709 C5
OPERATION (4)
(Side A)
OPERATION (6)
(Side A)
OPERATION (7)
(Side A)
OPERATION (5)
(Side A)