Sony HBD-DZ340K Service Manual page 53

IC103 MM3404A33URE (IO Board)
CE 1
VSS 2
IC206 PT6315 (PANEL Board)
44 43
LED1 1
2
LED2
LED3 3
LED4 4
OSC
5 OSC
DOUT 6
DIN 7
Serial
interface
CLK 8
STB 9
K1 10
11
K2
12 13
BIAS
–
VREF
+
CURRENT
LIMIT
42 41 40 39
Grid driver
Command decoder
Display memory
24 bits x 12 words
Timing generator
key scan
Key data memory
(2 x 16 bits)
14 15
HBD-DZ340/DZ340K/DZ640K/DZ740
4 VIN
3 VOUT
38 37 36 35 34
Multiplexed driver
Segment driver
16 17 18 19 20 21 22
GR10
33
32
GR11
31 GR12
30 VEE
29 SG16
28 SG15
27 SG14
26 SG13
25 SG12
24 SG11
23 SG10
53