15
15
CDX-GT10W/GT100/GT150/GT150S
CDX-GT10W/GT100/GT150/GT150S
3-3. BLOCK DIAGRAM — DISPLAY SECTION —
3-4. CIRCUIT BOARDS LOCATION
KEY ACKNOWLEDGE
SWITCH
Q664
X502
32.678kHz
SYSTEM CONTROL
IC501 (3/3)
LCD DRIVER
IC901
X501
18.432MHz
S702
RESET
LCD901
LIQUID
CRYSTAL
DISPLAY
PANEL
D503
LED941-944,951
LSW901-903,908º-920
LCD BACK LIGHT
LED DRIVE
Q932
LED932
PANEL+B
BU+3.3V
(
)
KEY MATRIX
RESET
IC602
LSW901-903,908-920
(VOLUME)
PUSH SELECT
RE901
ROTARY
ENCODER
LCD BACK
LIGHT
S502
FREQUENCY
SELECTOR
(
)
BU+3.3V
GT150/GT150S
10K
9K
DIMMER
LED DRIVE
Q931
MAIN board
JACK board
KEY board
SENSOR board
SERVO board
tuner unit
(TU1)
• NOTE FOR PRINTED WIRING BOARDS AND SCHEMATIC DIAGRAMS
THIS NOTE IS COMMON FOR PRINTED WIRING
BOARDS AND SCHEMATIC DIAGRAMS.
(In addition to this, the necessary note is printed
in each block.)
For schematic diagrams.
Note:
• All capacitors are in µF unless otherwise noted. (p: pF)
50 WV or less are not indicated except for electrolytics
and tantalums.
• All resistors are in
Ω
and
1
/
4
W or less unless otherwise
specified.
•
f
: internal component.
•
C
: panel designation.
For printed wiring boards.
Note:
•
X
: parts extracted from the component side.
•
Y
: parts extracted from the conductor side.
•
a
: Through hole.
•
: Pattern from the side which enables seeing.
(The other layers' patterns are not indicated.)
•
A
: B+ Line.
•
B
: B– Line.
•
H
: adjustment for repair.
• Voltages and waveforms are dc with respect to ground
under no-signal (detuned) conditions.
• CD mechanism section
no mark : CD PLAY
• Main (1/3), (2/3), (3/3) and Key sections
no mark : FM
(
) : AM
<
> : CD PLAY
∗
: Impossible to measure
• Voltages are taken with a VOM (Input impedance 10 M
Ω
).
Voltage variations may be noted due to normal produc-
tion tolerances.
• Waveforms are taken with a oscilloscope.
Voltage variations may be noted due to normal produc-
tion tolerances.
• Circled numbers refer to waveforms.
• Signal path.
J
: CD PLAY
F
: FM
f
: AM
L
: AUX
Caution:
Pattern face side: Parts on the pattern face side seen from the
(Side B)
pattern face are indicated.
Parts face side: Parts on the parts face side seen from the
(Side A)
parts face are indicated.
Note:
The components identi-
fied by mark
0
or dotted
line with mark
0
are criti-
cal for safety.
Replace only with part
number specified.
Note:
Les composants identifiés par
une marque
0
sont critiques
pour la sécurité.
Ne les remplacer que par une
piéce portant le numéro
spécifié.
Q
C
These are omitted
E
B
E
These are omitted
C
B
C
These are omitted
B
E
