Panasonic KX-FLM652CX Service Manual page 169

7.3.4. ANALOG SECTION
Composed of ITS circuit and NCU circuit.
7.3.4.1. ANALOG GATE ARRAY (IC209)
The cross-point switch installed in this IC makes it possible to change the circuit configuration
for any analog signals such as the fax signals sent from the digital board. In addition,
this analog gate array integrates a handset circuit, input/output ports, etc.
This IC is controlled by ASIC(IC600) through GATE ARRAY (IC604) on the digital board.
Explanation of ANALOG GATE ARRAY (IC209 on the ANALOG Board)
No. Name
1 STR
2 CLOCK
3 DATA
4 VDD
5 VOXOUT
6 VOXDET
7 VOXIN
8 VSS
9 NC
10 ROUT2
11 ROUT1
12 RIN
13 VCC
14 HSMICIN1
15 HSMICIN2
16 HSMICOUT
17 NC
18 NC
Function
Strobe input
Clock input
Data input
Logic power supply
VOX output
VOX detection adjustment
VOX input
Logic ground
Not used
HS receiver amp output 2
HS receiver amp output 1
HS receiver amp input
Analog ground
HS mic amp input 1
HS mic amp input 2
HS mic amp output
Not used
Not used
No. Name
19 NC Not used
20 EXTIN Ext amp output
21 EXTOUT Ext amp input
22 LINEOUT Line amp output
23 LINEIN Line amp input
24 MODEMTXIN MODEM TX amp input
25 MODEMTXOUT MODEM TX amp output
26 NC Not used
27 TONEIN Tone amp input
28 NC Not used
29 NC Not used
30 GND Analog ground
31 MODEMRXOUT MODEM RX amp output
32 VLIN Volume amp input
33 VREF Reference voltage output
34 VLOUT Volume amp output
35 SPOUT Speaker amp output
36 SPIN Speaker amp input
169
KX-FLM652CX
Function