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3-4. BLOCK DIAGRAM — DISPLAY SECTION —
SYSTEM CONTROL
IC501 (3/3)
KEY MATRIX
KEYIN0
5
LSW901,904-910,
LCDSO
912-922
LCDCKO
S902,903,911
4
KEYIN1
LCDCE
S801
Z
D502
KEY
ACTIVE
26
KEY ACK
Q664
91
AD_ON
D501
98
RCIN1
J561
6
RCIN0
(REMOTE IN)
IC971
2
REMOTE
29
SIRCS
RECEIVE
34 NOSE-SW
S501
(NOSE DET)
LED
DRIVER
75 DOOR-IND
Q701
LED801
(DOOR INDICATOR)
OSCOUT
LED802
XIN
15
X502
Z
32.768kHz
OSCIN
16
XOUT
LCD DRIVER
IC901
18
78
DI
DATA
1
SEG1
20
77
CL
CLK
|
|
SEG64
64
CE
CE
19
76
LCD
LCD901
65
COM1
|
|
COM4
68
PANEL+B
LED933,934
(LCD BACK LIGHT)
PANEL+B
LSW901,904-910,
912-922
LED903,911,933,934,
951-954
(
KEY
)
ILLUMINATION
12
X501
18.432MHz
13
3-5. CIRCUIT BOARDS LOCATION
DISC IN board
KEY board
• Waveforms
— Servo Board —
(MODE: CD PLAY)
1
2.4Vp-p
16.9344MHz
wd
(XTAL)
IC1
2
4.8Vp-p
3.4msec
IC1
ts
(PACK)
3
1.8Vp-p
IC1
uj
(RFO)
4
Approx. 620mVp-p
oa
(FEO)
IC1
5
Approx. 200mVp-p
IC1
od
(TEO)
17
17
CDX-CA680X/L580X
SERVO board
SUB (CD) board
LIMIT board
tuner unit
(TU1)
MAIN board
SUB board
— Main Board —
1
4.332MHz
4
(OSCO)
IC51
2
18.432MHz
qs
IC501
(OSCOUT)
3
32.768kHz
qh
(XOUT)
IC501
0V
0V
4.5Vp-p
2.3Vp-p
5Vp-p
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