Block Diagram -Display Section; Circuit Boards Location - Sony CDX-CA730X Service Manual

3-4. BLOCK DIAGRAM — DISPLAY SECTION —
SYSTEM CONTROL
IC501 (3/3)
KEY MATRIX
KEY IN0
5
LSW902,904,905,907,
911,913,915,916,918,919
S901,903,912,914,917
4 KEY IN1
LSW801(1/2)
Z
D702 D701
KEY
ACTIVE 26 KEY ACK
Q551
91 AD ON
D553
98 RC IN1
J561
6 RC IN0
(REMOTE IN)
IC971
REMOTE
29 SIRCS
RECEIVE
34 NOSESW
S552
(NOSE)
DOOR IND
SWITCH 92 DOORIND
Q631
LED801
(CD WINDOW)
XIN
15
LSW801(2/2) X502
32.768kHz
Z
16 XOUT
ROTARY
97 REIN0
ENCODER
96 REIN1
RE901
LCD DRIVE
IC901
LCD SO 18 100 DATA LCD DATA
3
SEG1
LCD CKO 20 99 CLK LCD CLK | |
SEG84 86
LCD CE 19 98 LCD CE CE
LCD
LCD901
COM1 90
| |
COM4 87
ILL+5V
ILL ON
ILL ON 93 SWITCH
Q603
ILL+5V
ILL B+
BATT REG
LED931,941
Q601
( LCD BACK
OSC OUT 12 LIGHT
X501
18.432MHz
OSC IN 13

3-5. CIRCUIT BOARDS LOCATION

SUB (CD) board
LED903,914
( KEY )
ILLUMINATION
• Waveforms
)
— Servo Board —
(MODE: CD PLAY)
1
16.9344MHz
IC1 wd
2
3.3msec
IC1 ts
3
IC1 uj
4
Approx. 100mVp-p
IC1 oa
5
Approx. 100mVp-p
IC1 od
17 17
DISC IN board
SUB board
KEY board
SERVO board
Main Board
—
1
1.8Vp-p
(XTAL)
IC501
2
5Vp-p
(PACK) IC501
1.5Vp-p
(RFO)
0V
(FEO)
0V
(TEO)
CDX-CA730X
LIMIT board
tuner unit
(TU10)
MAIN board
—
1.8Vp-p
18.432MHz
(OSCOUT)
qs
5.2Vp-p
32.768kHz
(XOUT)
qh