Sony HBD-E570 Service Manual page 74

HBD-E370/E470/E570/E870/T57
QQ
3 7 63 1515 0
– REG Board –
IC400 TK11133CSCL-G
5
OVER HEAT &
OVER CURRENT
PROTECTION
CONTROL
–
CIRCUIT
+
BANDGAP
REFERENCE
1 2
– FL Board –
IC801 TK11133CSCL-G
5
OVER HEAT &
OVER CURRENT
PROTECTION
CONTROL
–
CIRCUIT
TE
+
L 13942296513
BANDGAP
REFERENCE
1 2
IC802 HT16515
LED0 1
LED1 2
LED2 3
LED3 4
OSC 5 OSC
DO 6
DI 7
SERIAL
INTERFACE
CLK 8
www
CS 9
KEY0 10
KEY1 11
.
74
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4
3
4
3
44 43
4-BIT LATCH
12-BIT SHIFT
REGISTER
KEY DATA MEMORY
(2 x 16)
TIMING GENERATOR
KEY SCAN
DISPLAY RAM 24-BIT OUTPUT
24 BITS x 12 WORDS LATCH
x ao
y
COMMAND DIMMING
DECODER CIRCUIT
i
13
12
http://www.xiaoyu163.com
8
IC402 TK72270CSCL-GH
CONT 1
BANDGAP
REFERENCE
SW
CIRCUIT
VEE 2
NP 3
Q Q
3 6 7 1 3
42 41 40 39 38
12 4
GRID
DRIVER
8
8
DATA MULTIPLEXED
SELECTOR DRIVER
8
24 16
SEGMENT
DRIVER
u163
.
14 15 16 17 18
2 9 9 4 2 8
5 OUT
+
4 GND
OVER HEAT &
OVER CURRENT
PROTECTION
1 5 0 5 8 2 9 9 4
37 36 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
25 SEG12/KS12
co
24 SEG11/KS11
23 SEG10/KS10
19 20 21 22
9 9
2 8 9 9