CDP-EX100, MHC-EX100AV, MHC-EX50, MHC-EX70AV, MHC-EX90 - Sony Audio Service Manual (repair manual). Page 8

Read Sony CDP-EX100 / MHC-EX100AV / MHC-EX50 / MHC-EX70AV / MHC-EX90 Service Manual online

– 8 –
5-1. IC PIN FUNCTION
• IC601 
µ
PD78044AGF (SYSTEM CONTROL, FL DRIVER)
Pin No.
Pin Name
I/O
Function
1-7
T6-T0
O
FL display grid output
8
VDD
+5V power supply
9
CLK
O
Serial clock output to DSP (CXD2507AQ).
10
DATA
O
Serial data output to DSP (CXD2507AQ).
11
Fixed at Ground.
12
XLAT
O
Serial data latch pulse output to DSP (CXD2507AQ).
13
PRGL
O
Serial data latch pulse output to D/F DAC (PCM1710U).
14
SQCLK
O
Sub code Q data read clock output to DSP (CXD2507AQ).
15
Not used. (Open)
16
SUBQ
I
Sub code Q data input from DSP (CXD2507AQ).
17
RESET
I
System reset input (“ L ”= Active)
18
INSW
I
S292 (load in switch) input
19
OUTSW
I
S291 (load out switch) input
20
AVSS
Ground
21
LDOUT
O
Output for rotating M903 (loading motor) in the loading out direction.
22
LDIN
O
Output for rotating M903 (loading motor) in the loading in direction.
23
ADJ
I
Test mode input. (“ L ”= Stops GFS check)
24
AFADJ
I
Test mode input. Fixed at “H”. (“ L ”= Test mode)
25
MODE
I
Not used. (Fixed at “ H ”.)
26-28
KEY2-KEY0
I
Key AD input
29
AVDD
+5V power supply
30
AVREF
+5V power supply
31
Fixed at Ground.
32
Not used. (Open)
33
VSS
Ground
34
X1
I
Clock input (5MHz)
35
X2
O
Clock output (5MHz)
36
BDRST
O
BD reset output
37
BDPOWER
O
BD power ON/OFF output
38
Not used. (Open)
39
SENS
I
SENS input from DSP (CXD2507AQ).
40
AMUTE
O
Not used. (Open)
41
FSW
O
Focus switch output
42
BSOUT
O
Audio bus output
43
Not used. (Open)
44
SCOR
I
Sub code sync S0+S1 detection input
45
JOG1
I
JOG input
46
Not used. (Open)
47
BSIN
I
Audio bus input
48
IC (VPP)
Connected to Ground.
49
JOG0
I
JOG input
50, 51
Not used. (Open)
52
VDD
+5V power supply
53-70
S22-S5
O
FL display segment output
71
VLOAD
-28V power supply for driving FL display.
72-76
S4-S0
O
FL display segment output
77-80
T10-T7
O
FL display grid output
SECTION 5
DIAGRAMS
Page of 17
Display

Click on the first or last page to see other CDP-EX100 / MHC-EX100AV / MHC-EX50 / MHC-EX70AV / MHC-EX90 service manuals if exist.