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6-12. SCHEMATIC DIAGRAM – DISPLAY Board – •
DISPLAY BOARD
SW305
PLAY MODE
ROS/DIR
(AEP, UK)
L934SGC/B
L934SGC/B
L934SGC/B
CD
L934SGC/B L934SGC/B
L934SGC/B
TUNER MEM
ENTER
L934SGC/B
L934SGC/B L934SGC/B
D701–709
(LCD BACK LIGHT)
SEL2215S-CD
TIMER
4.2
0
LED DRIVE
0
10V
0.1
4.9
A0
VCC
A1
TEST
4.9
A2
SCL
4.9
VSS
SDA
IC302
EEPROM
Q306
1SS133T
RESET
SWITCH
0.1
4.9
0
1SS133T
ROTARY
ENCODER
VOLUME
0.001
0.001
2
0.4
2
2.5
4.3
BUFFER
SWITCHING
(AEP, UK)
•
See page 28 for Waveforms.
See page 28 for IC Block Diagram.
TAPE
TUNER
0.01
I / 1
Y
X
x
0.01
0.01
DSIPLAY
PRESET +
PRESET –
TUNING + M >
TUNING – . m
0.01
MUSIC MENU
0.01
z
MEGA BASS
0
IC304
0.1
5.4
RESET SIGNAL
GENERATOR
5.4
5.4
IN
0.1
X302
10V
REMOTE CONTROL
GND
RECEIVER
5.4
OUT
RPM6938
1SS133T
IC305
2.8
QUAL
RCLK
RDS DECODER
*
RDAT
NC
2.8
2.8
VREF
XO
50V
2.8
2
MUX
XI
2
5.3
5.3
VDD1
VDD2
VSS1
VSS2
VSS3
T1
10V
2.8
0.1
CMP
T2
10V
0.1
IC B/D
5.5
5.6
Q303
3.3
B+ SWITCH
1SS133T
1SS133T
1SS133T
(AEP, UK, CH)
1SS133T
(EXCEPT AEP, UK, CH)
1SS133T
1SS133T
1SS133T
1SS133T
1SS133T
FWD : 5.2
REV : 0
CASSETTE IN : 5.2
NO CASSETTE : 0
PROTECT ON : 5.2
PROTECT OFF : 0
PROTECT ON : 5.5
PROTECT OFF : 0
0
0
GENERALDOUT
1
4.9
GENERALCLK
4.9
I2CDATA
5.5
4.9
I2CCLOCK
IC
2.7
X2
2.5
X1
4.9
µPD78064GF-187-3BA
4.9
5.4
SYSTEM CONTROLLER,
5.4
LIQUID CRYSTAL
PWRFAIL
DISPLAY DRIVER
2.7
5.4
5.4 [0]
CDIN2
CDIN3
CDIN4
CDIN5
0 [5.4]
4.9
0
5.1
5.1
5.1
5.1
5.1
10V
0.1
0.1
10V
1SS133T
7
1
2
1
11
SW300
Z PUSH
B
MAIN BOARD (1/3)
OPEN/CLOSE
CN11
(Page 20)
25
25
CN301
LIQUID CRYSTAL DISPALY
2.5
SEG20
2.5
SEG19
2.5
SEG18
2.5
SEG17
2.5
SEG16
2.5
SEG15
2.5
SEG14
2.5
SEG13
2.5
SEG12
2.5
SEG11
2.5
SEG10
2.5
IC301
SEG9
2.5
SEG8
2.5
SEG7
2.5
SEG6
2.5
SEG5
2.5
SEG4
2.5
SEG3
2.5
SEG2
2.5
SEG1
2.5
SEG0
1.7
3.2
4.9
4.9
2.5
2.5
2.5
2.5
(MONO STEREO)
1SS133T
STEREO t MONO
ISS
2 t 1
SEL2215S-CD
z
(EXCEPT AEP, UK, CH)
4.4
0
LED DRIVE
1
C
MAIN BOARD (1/3)
CN5
(Page 20)
HCD-EP50
Ver 1.1
16
1
D
A
MAIN BOARD (2/3)
MAIN BOARD (1/3)
F
CN15
CN4
(Page 20)
(Page 21)
MAIN BOARD (3/3)
CN2
(Page 22)
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