Logic Board - Panasonic KX-W1500 Service Manual

7. Component Reference Guide
7.1 Logic Board
VSS
RESET
LPSTB
MAO
MA1
MA2
MA3
MA4
MAS
MA6
MA7
MA8
MAQ
MA10
MA11
MA12
MA13
DISPTMG
CUDISP
vec
MB89321BP-G
(IC1)
CRT Controller
M74LS157
(1C4,5,6,13, 14)
Multiplexer
VSYNC
HSYNC
RAO
RA1
RA2
RAS
RA4
DO
D1
D2
D3
D4
D5
D6
D7
cs
RS
RW
CLK
VCC
|
4A
4B
4yY
3A
3B
3Y
M53238P
(IC2)
NAND Buffer
with
Open Collector
Output
L.C3517AL-10
(IC7,8)
RAM
— 50 —
vec
A8
AQ
WE
OE
AiO
CE
1/08
1/07
1/06
1/05
1/04
PJVIM70H036
(IC3)
Gate Array
Al2
PAWI2W1500MA
(ICQ)
ROM
VDD
RES
RAM4
KBCS
RAM5
D7
D6
DS
D4
D3
D2
Di
DO
XT1
XT2
TEST
VSS
IN7
IN6
OUT3
OUT2
OUT1
OUTO
Att
RD
WR
CLK
RW
VTR
SLCT
VSYN
Vcc
NC
NC
A8
Ag
Att
OE
A10
CE
D7
D6
D5
D4
D3