Block Diagram -Display Section; Circuit Boards Location - Sony CDX-L380X Service Manual

3-4. BLOCK DIAGRAM — DISPLAY SECTION —
SYSTEM CONTROL
IC501 (3/3)
KEY IN0
5
LCD SO
KEY MATRIX
LSW900-922 LCD CKO
4 KEY IN1 LCD CE
KEY
ACTIVE 26 KEY ACK
Q664
91 AD ON
98 RC IN1
6 RC IN0
ILL ON
OSC OUT
15 XIN
X502
32.768kHz OSC IN
16 XOUT
LCD DRIVE
IC901
18 64 DI
LCD901
20 63 CL
19 62 CE
PL901,902
93
POWER
BATT
CONT ILL +B
Q661,662
12
X501
LED921,922
18.432MHz
13

3-5. CIRCUIT BOARDS LOCATION

• Waveforms
— Servo Board —
(MODE: CD PLAY)
1
16.9344MHz
wd (XTAL)
IC1
2
3.4msec
IC1 ts (PACK)
3
IC1 uj (RFO)
4
Approx. 620mVp-p
oa (FEO)
IC1
5
Approx. 200mVp-p
IC1 od (TEO)
17 17
SUB (CD) board
DISC IN board
LIMIT board
SERVO board
KEY board
— Main Board —
1
2.4Vp-p
IC51
2
4.8Vp-p
18.432MHz
qs
IC501
3
1.8Vp-p
32.768kHz
IC501
0V
0V
CDX-L380X
tuner unit
(TU10)
MAIN board
5.2Vp-p
4.332MHz
4 (OSCO)
3.6Vp-p
(OSCOUT)
5.2Vp-p
qh (XOUT)