Sony HCD-HPR90 Service Manual page 42

HCD-HPR90/HPR99XM
QQ
3 7 63 1515 0
IC707, 708 CXD9774M
DVDD DREG
GND 1
PWM
PWM BP 2
RECEIVER
GND 3
DGND
RESET 4
DREG RTN 5
DIGITAL
DREG
REGULATOR
GVDD 6 GVDD
M3 7
DREG 8 DREG
DGND 9
M1 10
M2 11 PROTECTION
LOGIC
DVDD 12
OT
SD 13
&
UVP
DGND 14
OTW 15
DVDD DREG
GND 16
PWM
PWM AP 17
TE
RECEIVER
L 13942296513
GND 18
DGND
– FL Board –
IC901 µPD16315GB-3BS
LED1 1
LED2 2
LED3 3
LED4 4
OSC
OSC 5
DOUT 6
7
DIN
SERIAL
www
INTERFACE
CLK 8
STB 9
KEY1 10
KEY2 11
.
42
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GVDD
DREG OCH
GATE
DRIVE
TIMING
CONTROL
&
PROTECTION
GATE
DRIVE
OCL
OCL
GATE
DRIVE
TIMING
CONTROL
&
PROTECTION
GATE
DRIVE
DREG OCH
GVDD
44 43
4-BIT LATCH
12-BIT SHIFT
REGISTER
KEY DATA MEMORY
(2 x 16 BITS)
TIMING GENERATOR
KEY SCAN
DISPLAY MEMORY 24-BIT OUTPUT
24 BITS x 12 WORDS LATCH
x ao
y
COMMAND DIMMING
DECODER CIRCUIT
i
12 13
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8
36 GVDD B
35 GVDD B
34 GND
33 BST B
32 PVDD B
31 PVDD B
30 OUT B
29 OUT B
28 GND
27 GND
26 OUT A
25 OUT A
Q Q
24 PVDD A
3 6 7 1 3
23 PVDD A
22 BST A
21 GND
20 GVDD A
19 GVDD A
42 41 40 39 38 37 36
12 4
GRID
DRIVER
8
8
DATA MULTIPLEXED
SELECTOR DRIVER
8
24 16
SEGMENT
DRIVER
u163
.
14 15 16 17 18 19 20
2 9 9 4 2 8
1 5 0 5 8 2 9 9 4
35 34
4
33 SEG19/GRID10
32 SEG18/GRID11
31 SEG17/GRID12
8
30 VEE
29 SEG16/KS16
28 SEG15/KS15
27 SEG14/KS14
16
m
26 SEG13/KS13
co
25 SEG12/KS12
24 SEG11/KS11
23 SEG10/KS10
21 22
9 9
2 8 9 9