Pioneer PDP-502MX Service Manual page 38

1
PDP-502MX, PDP-502MXE
3.8 UCOM ASSY SECTION
2
E PROM
A
24LC01B
Jungle IC
TB1227BN
MATRIX IC
CXA2101
CCD/TELTEXT
TPU3050
EXPANDER
CXA1875AM
3D Y/C SEPA.
LSI
uPD64081B
B
OSD IC
M35070 (35071)
OSD IC
PD0264AM-TFB
(PDP-505HD Only)
PLD
PE9006B
PLL
CXA3106A
SERIAL
U-COM CLK/DATA
CONTROLLER
ASSY
C
TC74VHC02FT-TBB
PANEL u-COM
HD64F3067
IP u-COM
HD64F3067
RESET IC RESET_RET
PST9146N
RESET_SU
RESET IC
PST9146N
SYNC u-COM
HD64F3067
D
∗POWER
POWER SUPPLY
ASSY
STB 5V
U-COM
RESET IC
ASSY
PST9146N
38
1
2
SCL
2
SDA
3
CONTROL
(M38869FFAHP)
∗OSD_CLR
63
∗OSD_CE
53
OSD_H 64
54
∗PLD_CE
56
∗PLL_CE
52
SC_DT
31
(ULK_PLL)
∗PN_CE
51
CLK2
7
DATA2
8
D_CLK
D_DATA
PN BUSY
5
PN ERR
34
RMT
33
IP BUSY
41
IP ERR
42
RST_RET
11
RST_SU
16
VPOL_U 43
∗SU_CE
57
I_DET 40
DTO_SU 9
15
REQ_SU
PLK_ID 69
POWER
26
∗RST
25
2
3
PM_ST
80
∗GRN
37
∗RED
38
∗YLW
39
KEY (MONITOR)
23
MR_KEY (SYSTEM)
REM_MP
Hi
REMSW
68
SYSTEM
REM
22
u-COM.
IC3604
∗CB_MUTE
67
20
TXD
21
RXD
32 RTS
14 CTS
UCOM ASSY
VOL
10
SMOOTHING
CIRCUIT
∗A_MUTE1
59
∗A_MUTE2
60
62 A_MUTE3
7 DATA2
8
CLK2
58 ∗ZOOM_CE
44 V_MUTE
1 S2_DET
4
Y_DETI
∗PN_MUTEX
47
∗PN_MUTEY
48
S_D
74
75 TEMP2
76 TEMP
FAN_MAX
61
∗PN_RST
35
(E) SCL
45
EP_RST
17
(E) SDA
46
3
4
M.R. (C.B.)
CONNECTION
DETECT CIRCUIT
LED
DRIVE/CONTROL
CIRCUIT
∗KEY
KEY SCAN uCOM.
PD5136
MR_KEY
MEDIA
RECEIVER
REM_PM
REMOTE CONTROL
(SYSTEM)
RECEIVER
CIRCUIT
REM
Lo
(MONITOR)
REMOTE CONTROL
REM
SIGNAL
CONTROL CIRCUIT
RS-232C
CONTROLLER
TC74HC00AF
RXD/CB OUT
RXD RS-232C
DRIVER/RECEIVER
MC145407F
0–5V DC AUDIO PRE-AMP
IC
AUDIO
CIRCUIT
FULL AUTO
ZOOM IC
HG62G010R29FB
RGB AMP IC
M52337SP
S2 DETECT
CIRCUIT
Y SIGNAL
DETECT
CIRCUIT
X DRIVE
PLD
Y DRIVE
PLD
FAN CONTROL
BLOCK
RESET
MATRIX IC
TC7W08FU
2
64k E PROM
24LC64
4
IR
RECEIVE
ASSY
CONTROL
ASSY
U-COM
ASSY
X DRIVE
ASSY
Y DRIVE
ASSY
UCOM
ASSY
DIGITAL
VIDEO
ASSY
U-COM
ASSY