Read Panasonic SC-EN25P / SC-EN26P / SC-EN27PC Service Manual online
· IC801 (MN101C74FAD) Microprocessor
Pin No.
Mark
I/O
Function
1 - 4
COM0 - COM4
O LCD common output
5 - 7
VLC3 -VLC1
-
LCD power supply
8
C2
-
Capacitor terminal for
pressure
pressure
9
LCD_GND
O/I LCD GND
10
PC1
I
Writing data
11
PC2
I/O Writing clock
12
CD_BOTTOM_SW
I/O CD bottom switch
13
CD_TOP_SW
I/O CD top switch
14
MBP1
O Beet proof 1
15
MBP2
O Beet proof 2
16
VSS
-
GND
17
OSC1
I
Main oscillator input (8MHz)
18
OSC2
O Main oscillator output (8MHz)
19
VDD
-
VDD +3.3V
20
XI
I
Sub oscillator input (32kHz)
21
XO
O Sub oscillator output (32kHz)
22
NMOD
I
CD Memory mode select
23
NRESET
I
Reset
24
DMOD
I
Silial writing mode
25
VREF+
-
A/D converter reference
voltage
voltage
26
KEYSW
A/D Key input
27
REGION
A/D Aria/Model select
28
PDET
A/D Main voltage check
29
CRT
A/D CR timer
30
NC
I
N.C.
31
CD_OPEN
O CD open switch function
32
CS_CLOSE
O CD close switch function
33
AG_DATA
O ASP data output
34
AG_CLK
O ASP clock output
35
PLL_D0
I/O PLL data input
36
PLL_D1
O/I PLL data output
37
PLL_CLK
O/I PLL CLK
38
PLL_CE
O/I PLL chip select output
39
MCLK
O/I CD LSI command clock
40
MDATA
O/I CD LSI command data
41
STATUS
I/O CD status
42
MLD
O/I CD LSI command load
43
REST_SW
I/O CD travers limit switch
44
CD_RESET
O CD reset switch
45
MUTE_A
I/O Audio Mute Output (L: MUTE
ON)
46
NC(EX_BASS)
I
N.C.
47
NC
I
N.C.
48
REM_IN
I
Remocon input
49
ACDET
I
Ac detection
50
BLKCK
I/O CD subcode block clock input
51
PCONT
O Power control output
52
CD_SET1
I
CD setting 1
53
CD _SET2
I
CD setting 2
54
CD_SET3
I
CD setting 3
55
NC(REC_H)
I
Not used. Connected with
GND exterminally through
resistance.
GND exterminally through
resistance.
56
NC(TAPE_L)
I
N.C.
57
E_CS
O EEPROM chip select
58
E_DATA
I/O EEPROM DATA
59
E_CLK
O EEPROM CLOCK
60
NC(TEST1)
I
TEST 1 terminal
61
NC(TEST2)
I
TEST 2 terminal
62
NC(JOG1)
I
Not used
63
NC(JOG2)
I
Not used
64
STBY_LED
O Standby_LED
Pin No.
Mark
I/O
Function
65
NC(AUX_DET)
I
Not used
66
NC
I
Not used
67
NC
I
Not used
68
NC
I
Not used
69-80
NC
I
Not used
81-100
SEG19-SEG0
O LCD Segment Output
17 Terminal Functions of ICs
39
SC-EN25P / SC-EN26P / SC-EN27PC
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