Sony CDX-L380X - Changing Operative Direction; Adjusting Sound Characteristics; Sound and Display Settings

17 17
CDX-L380X
3-4. BLOCK DIAGRAM — DISPLAY SECTION —
KEY MATRIX
LSW900-922
KEY
ACTIVE
Q664
X502
32.768kHz
15
16
12
13
5
18
20
194
26
91
98
6
SYSTEM CONTROL
IC501 (3/3)
LCD DRIVE
IC901
KEY IN0
LCD SO
LCD CKO
LCD CE
POWER
CONT
Q661,662
KEY IN1
KEY ACK
AD ON
RC IN1
RC IN0
ILL +B
XIN
XOUT
OSC OUT
93
ILL ON
BATT
OSC IN
X501
18.432MHz
64
63
62
LCD901
DI
CL
CE
LED921,922
PL901,902
3-5. CIRCUIT BOARDS LOCATION
MAIN board
SUB (CD) board
LIMIT board
DISC IN board
KEY board
SERVO board
tuner uni
t
(TU10)
32.768kHz
IC501
qh
(XOUT)
— Main Board —
1
2
3
18.432MHz
IC501
qs
(OSCOUT)
5.2Vp-p
4.332MHz
IC51
4
(OSCO)
5.2Vp-p
3.6Vp-p
IC1
uj
(RFO)
• Waveforms
— Servo Board —
(MODE: CD PLAY)
1
2
3
IC1
ts
(PACK)
0V
1.8Vp-p
16.9344MHz
IC1
wd
(XTAL)
0V
4
Approx. 620mVp-p
IC1
oa
(FEO)
5
Approx. 200mVp-p
IC1
od
(TEO)
2.4Vp-p
4.8Vp-p
3.4msec