Panasonic UF-580 Service Manual page 61

CN7
SC PCB
Signal Name
Pin No.
CN7-1 FR
CN7-2 FCK1
CN7-3 FCK2
CN7-4 FSG
CN7-5 AGND
CN7-6 +5V
CN7-7 DOS
CN7-8 OS
CN9
SC PCB
Signal Name
Pin No.
CN9-1 pSPKOT
CN9-2 GND
Destination
CCD PCB
CN30-1
CCD PCB
CN30-2
CCD PCB
CN30-3
CCD PCB
CN30-4
CCD PCB
CN30-5
CCD PCB
CN30-6
CCD PCB
CN30-7
CCD PCB
CN30-8
3.5V
4.5V
Destination
SPEAKER
SPEAKER
Signal Waveform
+5V(H)
0V(L)
1 s
1 s1 s
+5V(H)
0V(H)
1 s 1 s
+5V(H)
0V(H)
+5V(H)
0V(L)
1 s 2.4ms
+3.0V
2.4ms
Max.1.0V
Signal Waveform
+2V
(Max)
-2V
(Min)
61
Function
Reset Signal
Shift Register Clock
Shift Register Clock
Data Transfer Enable Signal
Ground
0V
+5 VDC Power Supply
+5V
Output Signal
4.5V
Output Signal
Function
Line Signal, Key Tone,
Ringer
Ground
0V