Operation Of Lsi O - Panasonic CQ-H03EG Service Manual

@ Name of terminals description of connection
FM local signal input
AM local signal input
Phase detect output
Phase detect output
Chip enable input
| 6 |
| 8 | eM
ae ee
| 10 | GN
ae
F
D
E02
CE
= w
4.5MHz crystal
4.5MHz crystal
Dolby output
Analog SW Control
[Clockoutput_
Mute output
Bias for LCD temperature com-
pensation
LCD signal output
LCD signal output
NC
x1
X2
PORT A3
PORT A2
PORT Al
PORT AO
PORT K3
PORT K2
PORT K1
PORT KO
PORT B3
PORT B2
PORT B1
PORT BO
PORT C3
PORT C2
PORT Ci
FM IF
VDD
AM IF
LCD GND
20
21
22
23
26
27
28
29
30
31
32
42~52
LCD23~19
LCD16~6
K2
K3
e@These waveforms are measured by using
ten times (x 10) probe.
COQ-HO3EG/EE CQ-HO3EG/EE
OPERATION OF LSI
Function of LSI (YEAM 1713A 603)
7B
7L
coe ae
B! B2 BO
® Composition of Key matrix
TTwlm [ale
rao [Bano]. ser] wt | ma |
}81 | ue |pown| m2 | ms |
fez] — | ——| ws | me |
bd
BA
ND
Bi
Mm oO
glalslalelalgajeinselals
27 I3
28
29 TT
30
10
31
9
32
8
33 7
4
1C600 YEAMI7I3ZA603
6
Ve
=) Oo =
o
Nn
Nine |S
wo S orm) WL
© AM OSC
1 D2 iW _s mevpiys
Late hs ean!
@~O LCD5~2
®~ ® LCD23~6
Se ee ee TE
PRECAUTION IN HANDLING
(For Prevention of electrostaticc fracture)
supplied.
off.
voltage to the input terminal.