Block Diagram -Display Section; Circuit Boards Location - Sony CDX-CA710X Service Manual

3-4. BLOCK DIAGRAM — DISPLAY SECTION —
SYSTEM CONTROL
IC303 (3/3)
KEY MATRIX
KEY IN0
6
LSW901,902,904,905,907,
911,913,915,916,918,919
S903,912,914,917
5 KEY IN1
S801
Z
D303
KEY
ACTIVE 26 KEY ACK
Q304
91 AD ON
D302
98 RC IN1
CNJ101
7 RC IN0
(REMOTE IN)
IC971
REMOTE
29 SIRCS
RECEIVE
34 NOSESW
S302
(NOSE)
DOOR IND
SWITCH 85 DOORIND
Q303
LED802
Z
XIN
15
X301
LED801
32.768kHz
16 XOUT
(DOOR INDICATOR)
ROTARY
97 REIN0
ENCODER
96 REIN1
RE901
94 DOOR SW
SUB
BOARD
LCD DRIVE
IC901
LCD SO 18 100 DATA LCD DATA
SEG1 3
LCD CKO 20 99 CLK LCD CLK | |
SEG84 86
LCD CE LCD CE CE
19 98
LCD
LCD901
90
COM1
| |
COM4 87
KEY+B (10V)
LSW901,902,904,905,907,
911,913,915,916,918,919
LED903,912,914,917,931,941
951-954
( KEY )
ILLUMINATION
OSC OUT 12
X302
18.43MHz
OSC IN 13

3-5. CIRCUIT BOARDS LOCATION

DISC IN board
KEY board
SUB board
• Waveforms
— Servo Board —
(MODE: CD PLAY)
1
1.8Vp-p
16.9344MHz
(XTAL)
IC1 wd
2
5Vp-p
3.3msec
(PACK)
IC1 ts
3
1.5Vp-p
IC1 uj (RFO)
4
Approx. 100mVp-p
IC1 oa (FEO)
5
Approx. 100mVp-p
IC1 od (TEO)
17 17
CDX-CA710X/CA790X
MJ board
SUB (CD) board
LIMIT board
tuner unit
(TUX501)
MAIN board
SERVO board
Main Board
— —
1
18.432MHz
(OSCOUT)
IC303 qs
2
32.768kHz
(XOUT)
IC303 qh
0V
0V
1.8Vp-p
5.2Vp-p