Technics SJ-HD501 Servise Manual page 48

Pin Mark I/O
No. Division
45 TEST06 O
46 TEST07 I
47 TOK OK O
48 HF ON —
49 PANEL I
CLK
50 PANEL I
DATA I
51 PANEL O
DATA 0
52 PANEL O
CS
53 SELAD O
54 SSCLK O
55 SSDR I
56 SSDW O
57 LCDCK O
58 ADRS O
TEST
RXD
59 LCD O
DATA
TXD
60 VREF- —
61 TEMP I
62 KEY1 I
63 KEY2 I
64 NO I
LOAD
65 SRVTEST I
66 LOAD P I
input terminal
Function
Test signal output terminal
(Not used, open)
Connected to rec/play
switch signal
Not used, open
Drive signal output
terminal to Q3 (POWER
SUPPLY CONTROL)
Panel I/F clock input
terminal
Panel I/F data input terminal
Panel I/F data output
terminal
Panel I/F chip select output
terminal
Micro computer I/F address
select output terminal
Micro computer I/F clock
output terminal
Micro computer I/F reading
data input terminal
Micro computer I/F writing
data output terminal
LCD clock test signal
output terminal
(Connected to power
supply through resistor)
Test signal output terminal
(Connected to power
supply through resistor)
Test signal output terminal
(Not used, open)
Connected to GND
Temprature sensor amp
input terminal
Key input 1 terminal
Key input 2 terminal
Test signal input terminal
("L":Without loading
mechanism) (Open)
Test signal input terminal
("L":Servo test mode)
(Open)
Test signal input terminal
(Open)
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