Key Control - Pioneer f-502 Service Manual

AC SEPA ASSY
AC1
LIVE_IN
NEUTRAL
AC3
CN9473
LIVE_IN NEUTRAL
CP1
P1
MR POWER SUPPLY UNIT
FAN3
CP51
FAN_12V
CN8505 CN8501
AV6
IC8507
REGULATOR
V+12V_STB
AV BOARD ASSY
V+16V
MAIN_Y,Pb,Pr
SUB_Y,Pb,Pr
MAIN_V,Y/C
SUB_V,Y/C
MAIN_Y
IC8005 IC8002
SUB_Y
VIDEO SW AV SW
V,Y/C
Y,Pb,Pr
V1 A1 V2 A2
INPUT1 INPUT2
(COMPOSITE, S, (COMPOSITE, S,
COMPONENT, AUDIO L/R)
AUDIO L/R)
PDP4350SX & PDP5050SX
AC2
TO
PANEL POWER
SUPPLY UNIT
P2
TO AUDIO AMP
ASSY CN3501
CN7402
AV5
AUDIO_L/R
V+12V
Q8501
TR.
DT_V,Y/C
DT_L/R
AIR_L/R
IC7503
CXA2064
AIR_V1
AIR_V2
SCL/SDA_AV
V
U7502
AXF1132
V4 A4 V0 A0
INPUT4 MONITOR OUT
ANT. B
(COMPONENT, (COMPOSITE,
IN/OUT
AUDIO L/R) AUDIO L/R)
OPT.
POD CARD SLOT
OUT
IC5501
BCM7021
IC4007
IC8501 ADC
3D Y/C
VDEC
CVBS_IN
D2
CN1001
CN8657
AV12 AV4
IC8503
SWITCHING
REGULATOR
L/R
IC8003
AUDIO SW
OPT_L/R
IC7502
FROM TUNER BOARD
ASSY M1501
(ANALOG)
IC7801
U7501
RS-232C
AXF1130
DRIVER
AV9
RS-232C
CN9461
L1
LED ASSY
62
ANT.A
IN
TO AV BOARD
ASSY U7501
(ANALOG)
IC5201
BUS BRIDGE
GATE ARRAY
V+3.3
V+3.3
VD V+1.8
V+2.5 V2
VD VD
D3
CN1003
CN8503
AV10
U8504
D-D
CONVERTER
U8503
D-D
CONVERTER
Q8511
FET
Q8501
TR.
HDMI_L/R
HDMI_EXT_L/R
TXD_IF,RXD_IF
IC8702
TXD,RXD
SR_OUT
IF UCOM
LED_G
LED_R
KEY
LED_FCT
REM_B
CN8656
CN4901 CN4852
RE1 KL2
PANEL

KEY CONTROL

IR ASSY ASSY
V+6.5
V+5
VD
VD
KL1