Sony CDX-GT550 Benutzerhandbuch
19
19
CDX-GT50W/GT500/GT500EE/GT550
CDX-GT50W/GT500/GT500EE/GT550
3-3. BLOCK DIAGRAM — DISPLAY SECTION —
KEY ACKNOWLEDGE
SWITCH
Q710
X711
32.678kHz
SYSTEM CONTROL
IC711 (3/3)
FL900
VACUUM
FLUORESCENT
DISPLAYS
BATT
X710
18.432MHz
S700
RESET
38
37
39
D712
D710
S600
LED802,803
(NOISE DET)
LED900–915,
LSW901–905,
907,908
F+
F+
F+
F+
F+
F–
F–
F–
2
1
3
BU+3.3V
SYS RST
KEY MATRIX
RESET
IC710
IR
REMOTE CONTROL
SIGNAL RECEIVER
IC900
ENC902,LSW901–905,
907–909,S801,908,911–921
GCP SELECT
IC902
RECT
D624
D624
T620
DC–DC CONVERTER
TRANSFOMER
RECT
D622
D622
BATT
BATTERY CHECK
BATT
BATT
RESET
S710
FREQUENCY
SELECT
(
)
BU+3.3V
J530
(REMOTE IN)
GT550
PANEL+B
10K
9K
DDC ON
SWITCH
Q623,642
BU+5V
DISP+3.3V
DOOR
INDICATOR
SWITCH
Q601
DC/DC
CONVERTER
IC620
28 GCP
24 CLK
23 SI1
22 SI2
21 SI3
DISPLAY CONTROL
IC901
OSCILLATOR
FREQUENCY
SHIFT CONTROL
Q621,622
ENC902
ROTARY
ENCODER
BATTERY
CHECK
Q641,643
30 BK
29 LAT
VDD1
DISP+3.3V
31
VDD2
34
DISP+3.3V
D711
OSCILLATOR
FREQUENCY
COUNT SWITCH
Q620
X901
5MHz