Pioneer PDP-502MX Service Manual page 34

1
PDP-502MX, PDP-502MXE
3.7 Y DRIVE ASSY SECTION
A
SCAN BLOCK
R3602
CN3605
B
H1
HBLK1
44
SI
42
CLK 40
LE 38
CLR 36
HBLK2 34
LBLK 32
30
YSUS-B
YSUS-U
28
R3619
YSUS-D 26
YSUS-G 24
22
YNR-D
YNR-U 20
YSUS-MSK
18
YCP-MSK 16
OFS
14
MUTEY 6
R3654
R3655
C
CN3701
H5
1
+5V
3
+12V
DRV PD 7
DC PD
8
5
+14V
–8V 6
VSUS
175V
1
VSUS
4
SUS GND
SUS
GND
VSUS
10
+10V
H4
CN3700
D
34
1
2
HBLK1
TP3600
SI
TP3604
CLK
TP3602
IC3600
(TC74VHC541FT)
4 16
15
5
6 14
7 13
8 12
9 11
LE
TP3605
R3603
CLR
TP3602
HBLK2
TP3606
IC3606
(TC74VHC541FT)
R3614
2 18
3
17
4
16
5 15
6 IC3612
14
7
13
8 12
9
11
IC3612
2 18
3 17
7 13
IC3614
(TC74VHC541FT)
D852
K854
IC5V OVP
D759
K754
Q752
VH OVP
D763
Q755
K751
VH UVP
D709
K706
VOFS OVP
Q701
D710
K705
VOFS UVP
K804
VRN OVP
D809
Q802
K801
VRN UVP
D813
Q805
2
3
IC5V
IC3607
5
IC3602
5
IC3611
5
IC3610
5
IC3604
5
IC3609
5
IC3605
5
IC3613
(PDT043A)
R3636
SUS-B
14
2
SUS-U
15
3
SUS-D
16
4
SUS-G
5 17
YCP-MSK
18
7
YSUS-MSK
13
8
OFS
9 12
YNR-D
19
6
11
R3645
MUTE
TP855
D890
+
IC5V
–8V
IC5V, VF
+
14V DC–DC CONV.
TP851
IC850, IC851
T850
VH
D753
VSUS
VH DC–DC
CONV.
IC750, IC751
T750
VSUS
VOFS
DC–DC CONV.
IC701, IC702
T700
SUS GND
DC–DC CONVERT BLOCK
3
4
VH
H2 H3
IC5V
PSUS
SI DATA
IC3601
(TC74ACT541FT)
13
14
15
16
17
12
11
18
TP856
VFZ+
IC3804
VFZ–
+ 5V
REG.
IC3803
R3820
5
OFS
K3756
TP751
OFS BLOCK
+
TP753
PSUS
VOFS
K705
VOFS
+
D700
K701
TP800
SUS
GND
D802
+
SUS
GND
VRN
TP803
VRN
(–200V)
4
Q3802
R3822
R3823
7
R3824
R3825
5
IC3801
Q3804
R3826