Sony HBD-E370 Service Manual page 74

HBD-E370/E470/E570/E870/T57
– 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
+
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
9
CS
KEY0 10
KEY1 11
74
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
COMMAND DIMMING
DECODER CIRCUIT
13
12
IC402 TK72270CSCL-GH
CONT 1
BANDGAP
REFERENCE
SW
CIRCUIT
VEE 2
NP 3
42 41 40 39 38 37
12 4
GRID
DRIVER
8
8
DATA MULTIPLEXED
SELECTOR DRIVER
8
24 16
SEGMENT
DRIVER
14 15 16 17 18 19
5 OUT
+
4 GND
OVER HEAT &
OVER CURRENT
PROTECTION
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
26 SEG13/KS13
25 SEG12/KS12
24 SEG11/KS11
23 SEG10/KS10
20 21 22