Amp Board - Sony HCD-HPX7 Service Manual

– AMP BOARD –
IC602 RT8H015C-T112-1
6 5
OVER LOAD DC
DETECT DETECT
1 2
– PANEL (1) BOARD –
IC801 PT6315
LED1
1
LED2
2
3
LED3
LED4
4
OSC
5 OSC
DOUT 6
DIN
7
Serial
interface
CLK
8
STB
9
KEY1
10
KEY2 11
12 13
4
3
44 43 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)
38 37 36 35
Multiplexed driver
segment driver
14 15 16 17 18 19 20 21
HCD-HPX7
34
SEG19/GRID10
33
32 SEG18/GRID11
31 SEG17/GRID12
30 VEE
SEG16/KS16
29
28 SEG15/KS15
27 SEG14/KS14
SEG13/KS13
26
25 SEG12/KS12
SEG11/KS11
24
SEG10/KS10
23
22
79