Panasonic SADT300 - MINI SYSTEM RECEIVER, Service Manual

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Pin
No.
Terminal
Name
I/O Function
43 VOL
LTCH
O Latch signal output for IC501
44 E2P DIO O Not used, connected to GND
45 E2P CLK O Not used, connected to GND
46 E2P CE O Not used, connected to GND
47 HP I Headphone connecting detect
signal input
48 VR ATT O Volume attenuator signal output
49 CR
TIMER
I CR timer signal input
50 CS4 I Not used, connected to GND
51 CS3 I Not used, connected to VREF
52 CS2
I Not used, connected to VREF
53
CS1
I Not used, connected to GND
54 CS0 I Not used, connected to GND
55 LED
STBY
O LED drive signal output
56 LED
TIMER
O LED drive signal output
57 LED
STBY2
O LED drive signal output
58 HP MUT O Mute signal output for
headphone when
the power ON/OFF
59 TUN CE O Chip enable signal output for
LC72131M
60 TUN
DIN/ST
I Data signal/stereo signal input
61 TUN
DOUT
O Data signal output for LC72131M
62 TUN
CLK
O Clock signal output for
LC72131M
63 TUN SD I Station detect signal input
64 POWER O Power signal output
65 FAN1 O Fan motor drive signal output 1
66 FAN2 O Fan motor drive signal output 2
67 FRQ
SHIFT
O Digital amplifier oscillated
frequency change signal output
68 PQ DET - Not used, connected to GND
69 RDS DIN I Data signal input from IC541
70 RDS
CLK
O Clock signal output for IC541
71 RDS
RDYIN
I Ready signal input from IC541
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