Pioneer PDP-502MX Service Manual page 31

5
D6
To Panel U-com
EM CLK)
X3201
62MHz
OSC
16bit × 2
(IC#21)
205
VLD_A
VLD_B
FIELD
K CONT
RA/RB
GA/GB
BA/BB
IC2151
(PE5062A)
H
SYNC
CONT
V
R
3
LK
G
SD_H 6
B
SD_V
BLK
260
061A)
SD
ESSOR
+3.3V
50M
IC2201
(PE5064A)
DRIVE SEQUENCE
PATTERN GEN.
25M
(IC#23)
Q554
+12V
IC551
REG
+
Q605
IC601
REG
+
Digital P.D.
CN551
5
6
VACANT
+3.3V
W
R
CONT
3
W
R
CONT
W
R
CONT
8
CD
25 ADR/LBLK
8
MN (X Drive Gen. Pulse)
24 EF/GH/IJ (Y Drive Gen. Pulse)
X3202
1/2
50MHz
OSC
SGRAM • READ OUT
MASTER CLOCK
TP553
TP555 TP556
+5V OVP +5V UVP
Q551
TP601
Q553
Q552
D555 D556
D605
Q601
Q602
D606
TP604
+3.3V OVP
D16
6
+3.3V
(IC#22)
DATA
ARRANGE
DATA
CONVERT
+3.3V
IC2601
(PE5063A)
SUB FIELD
CONVERSION
R
+3.3V
(IC#22)
DATA
ARRANGE
DATA
CONVERT
+3.3V
IC2701
(PE5063A)
SUB FIELD
CONVERSION
G
+3.3V
(IC#22)
DATA
ARRANGE
DATA
CONVERT
+3.3V
IC2801
(PE5063A)
SUB FIELD
CONVERSION
B
+5V
+3.3V
TP603
+3.3V UVP
Q603
7
PDP-502MX, PDP-502MXE
IC2602
(HY58163210TQ-10)
16M SGRAM
IC2603
(HY58163210TQ-10)
16M SGRAM
IC2702
(HY58163210TQ-10)
16M SGRAM
IC2703
(HY58163210TQ-10)
40
16M SGRAM
RDAT
40
GDAT
IC2901–IC2910
BDAT
IC3001–IC3010
IC3301–IC3304
40
IC3308, IC3309
IC3311, IC3312
IC2802
(HY58163210TQ-10)
16M SGRAM
IC2803
(HY58163210TQ-10)
16M SGRAM
IC3101 XSUS-B/U/D/G
XPR, XR
X DRIVE BUFFER
YSUS-B/U/D/G
SI, MSK, CLK, PFS,
OE, YNR, YR
IC3102–IC3104
Y DRIVE BUFFER
7
8
A
B
ADR
BUFFER
C
D4
CN3256
D
CN3252
D9
31
8