Pioneer CRT3820, Service Manual

Page: 60 / 70

DEH-2950MP/XN/ES
60
1 2 3 4
1 2 3 4
C
D
F
A
B
E
Pin No. Pin Name I/O Format
Function and Operation
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32-36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
ROMDATA
ROMCK
ROMCS
NC
LOEJ
DSCSNS
*sns
!@sns
home
TEMP
VDSENS
adena
ADC.VDD
ADC.GND
FLMD0
reset
PULLDOWN
NC
testin
NC
BSI
BSO
bsck
FTxD
FRxD
BRXEN
bsrq
NC
fmode
FLRQ
ROM
NC
MCKRQ
LRCKOK
puen
CD3VON
CONT
VDCONT
CLCONT
CDMUTE
TEST
brst
REGS
C.VDD
C.GND
XTAL
X.GND
xtal
X.VDD
DA.VDD
LOUT
DA.GND
REGC
DA.GND
ROUT
I/O
O
O
O
I
I
I
I
O
I
I
O
I
I
O
I/O
O
I
I/O
I/O
I
O
I
O
O
O
O
O
O
O
O
I
I
I
O
O
O
/C
C
C
C
C
C
N
N
N
N
/C
/C
C
N
N
C
C
C
C
C
C
E2PROM : Data input/output
E2PROM : Clock output
E2PROM : Chip select output
Not used
LOAD/EJECT direction switching output
Disc sense input
8 cm disc detection input
12 cm disc detection input
HOME SW sense input
Temperature information sense input
VD power supply short circuit/earth fault sense input
A/D reference voltage supply control output
Power supply for A/D converter
Ground for A/D converter
Flash writing control terminal
Internal microcomputer reset terminal
Pull-down
Not used
Chip check, test program start-up input
Not used
P-BUS : Serial data input
P-BUS : Serial data output
P-BUS : Serial clock input/output
Tx for flash rewriting
Rx for flash rewriting
P-BUS : Reception enable input/output
P-BUS : Service request input
Not used
Flash self-rewriting mode start-up input
Flash self-rewriting reset voltage control
Open(EMPH)
Not used
CLOCK request
LRCK reference enable
Pickup hologram power supply control output
CD + 3.3 V power supply control output
Servo driver power supply control output
VD power supply control output
CRG/LOAD-EJECT switching control output
CD mute control output
Test terminal
P-BUS : Communication reset input
Capacitor connection for standby
Power supply for internal microcomputer
Ground for internal microcomputer
Connected to the crystal oscillator
Ground for the crystal oscillator
Connected to the crystal oscillator
Power supply for the crystal oscillator
Power supply for DAC
Output of audio for the left channel
Ground for DAC
Connected to the capacitor for band gap
Ground for DAC
Output of audio for the right channel
-
Pin Functions (PE5547A)