Pioneer f-502 Service Manual page 100

SCAN B ASSY
(HIGH SIDE)
VH IC5V
Scan S gnal
Scan IC
PSUS
IC2901
VH IC5V
Y SUB DRIVE ASSY
Scan IC
IC2902
VH IC5V
PSUS
Scan IC
IC2903
VH IC5V
Scan IC
IC2904
Y8
VH IC5V
Scan IC
PSUS
IC2905
VH IC5V
Scan IC
IC2906
SB3
SB2
VH
IC5V
SA2
VH IC5V
SA3
Scan
Signal
Scan IC
PSUS
IC2801
VH IC5V
Scan IC
IC2802
VH IC5V
Scan IC
PSUS
IC2803
VH IC5V
Scan IC
IC2804
VH IC5V
Scan IC
IC2805
VH IC5V
VH
Scan IC IC5V
IC2806
SA1
Photo Coupler
SCAN A ASSY
Y3
(LOW SIDE)
J
A
B
C
D
H
E
LVDS ASSY
F
G
AD2
50 ADDRESS L ASSY
CN1602
AN/P BN/P
CN/P DN/P
V+8V
CLKN/P
RESONANCE RESONANCE RESONANCE
BLOCK BLOCK BLOCK
VDDLS6 VADR6 VDDLS5 VADR5 VDDLS4
CLK / LE / HBLK / LBLK
R/G/B
DRIVER IC DRIVER C DRIVER C
IC1656 C1655 C1654
PDP427CMX, PDP507CMX
Block Diagram
+5V VSUS +16 5V
MASK
BLOCK
Y9
Y12
VOFS
VH Vprst
VSUS
60V
VH DC/DC CONV OFFSET
+RESET
BLOCK
BLOCK
Vprst
Vprst Reg
VOFS +16 5V
VOFS
+5V VSUS +16 5V
DC/DC
CONV
MASK
BLOCK
VSUS
+5V
+6 5V
REGULATOR
+16 5V
+5V +16 5V
Y4
+5V
RESONANCE
BLOCK
+5V VSUS +16 5V
LOGIC
BLOCK
DK MOD
(IC2107)
MASK
Y1
BLOCK
+16 5V
SOFT D
BLOCK
IC5V +16 5V
IC5V/VF
IC5V
DC/DC
VF Y2
CONV
5V
Scan Signal
BLOCK
60V
Y MAIN DRIVE ASSY
FAN (3)
FAN (2)
AD1
CN1601
V+3V
IC1601
V+5V V+60V
LVDS
Receiver
RESONANCE RESONANCE
BLOCK BLOCK
VADR4 VDDLS3 VADR3 VDDLS2 VADR2
DRIVER IC DRIVER C
IC1653 C1652
IC3652
BR24L02FJ
EEPROM IC
IC3651
Buffer
MM1522XU
SENSOR IC
SENSOR ASSY
DD ASSY
+12V
IC302
+16.5V to 12V
+6V
+7V
IC301
STB3.3 to +7V
+3.3V
IC303
+5.1 to +3.3V
+2.7V
IC305
+12V
+16.5 to +12V
Alarm
Detect
IC306
+12 to +10V
CN312 CN313 CN315
AD2
CN1802
AN/P BN/P
CN/P DN/P
V+8V
CLKN/P
RESONANCE RESONANCE RESONANCE
BLOCK BLOCK BLOCK
VDDLS1
VADR1 VDDLS5 VADR5 VDDLS4
CLK / LE / HBLK / LBLK
R/G/B
DRIVER IC DRIVER C
DRIVER C
C1651 IC1855 C1854
100
V+3VPT
TE1
SCL
SDA
TEMP1
AD1
CN1801 50 ADDRESS S ASSY
V+3V
IC1801 V+5V V+60V
LVDS
Receiver
RESONANCE RESONANCE
BLOCK BLOCK
VADR4 VDDLS3 VADR3 VDDLS2 VADR2
DRIVER C DRIVER IC
C1853 IC1852
RESONANCE
BLOCK
VDDLS1 VADR1
DRIVER C
C1851