Block Diagram -Display Section - Sony CDX-MP30 Manual De Servicio

3-3. Block Diagram –DISPLAY Section–
IC801 (2/2)
SYSTEM CONTROL
S501 -510
KEY IN0
5
FUNCTION SWITCH
LCDCKO
S511 -521
4 KEY IN1
FUNCTION SWITCH
D809
Q803
KEY 26 KEY ACK
DETECT
XKEYON
91
D807
98 RC IN1
CNP801
6 RC IN0
(REMOTE IN)
IC552
REMOTE
g
2 29
CONTROL SIRCS
RECEIVER
OSC OUT
15 XIN
X802
32.768kHz
16 XOUT
IC501
LCD DRIVER
2
I
13
•
S2
15
LCDSO 18 64 DATA
I
|
CLK S48 38
20 63
•
LCDCE 19 62 CE LCD501
40
I LIQUID
51
CRYSTAL
DISPLAY
COM1 52
| |
COM4 55
Q919 ILL B+
ILLON 93 ILL ON
SWITCH
LED549,550
Q918
( LCD BACK
BATT
ILL B+
LIGHT
SWITCH
D561-589
( KEY
ILLUMINATION
12
X801
18.432MHz
OSC IN 13
• Circuit Boards Location
)
• Waveforms
— SERVO Board —
)
(MODE: CD PLAY)
1
IC1 wd (XTAL)
59 ns
2
IC1 uj (RFO)
500mV/DIV,1µs/DIV
3
IC1 oa (FEO)
Approx. 200m Vp-p
100mV/DIV,20µs/DIV
4
IC1 od (TEO)
Approx. 300m Vp-p
100mV/DIV,20µs/DIV
5
IC3 yd (XTAL)
15 15
SERVO board
DISC IN SW board
SPEAKER board
DISPLAY board
LIMIT SW board
MAIN Board
—
6
IC601 4 (OSCD)
4.8 Vp-p
230 ns
1V/DIV,20ns/DIV
2V/DIV,100ns/DIV
7
IC801 qs (OSCOUT)
1.7 Vp-p
54 ns
2V/DIV,40ns/DIV
8
IC801 qh (XOUT)
30.5 µ s
2V/DIV,20µs/DIV
2.7 Vp-p
82 ns
1V/DIV,40ns/DIV
CDX-MP30
tuner unit
(TU601)
MAIN board
—
5.7 Vp-p
5.3 Vp-p
5.4 Vp-p