HCD-GT22/GT44/GT55
27
27
HCD-GT22/GT44/GT55
•
Note For Printed Wiring Boards and Schematic Diagrams
•
Indication of transistor
Note on Schematic Diagram:
•
All capacitors are in
µ
F 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.
•
2
: nonflammable resistor.
•
5
: fusible resistor.
•
C
: panel designation.
•
A
: B+ Line.
•
B
: B– Line.
•
Voltages and waveforms are dc with respect to ground
under no-signal (detuned) conditions.
– CD Board –
no mark : CD PLAY
[
] : USB
– USB Board –
no mark : USB
– TC Board –
no mark : TAPE PLAY
(
) : TAPE REC
〈〈
〉〉
: TAPE A
{
} : TAPE B
– Other Board –
no mark : TUNER (FM/AM)
(
) : CD PLAY
[
] : TAPE 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.
F
: TUNER (FM/AM)
J
: CD PLAY
: USB
E
: TAPE PLAY (DECK-A)
d
: TAPE PLAY (DECK-B)
G
: TAPE REC
f
: AUDIO IN
N
: MIC
•
Abbreviation
AR
: Argentina model
AUS
: Australian model
E2
: 120V AC Area in E model
E3
: 240V AC Area in E model
E13
: 220V – 230V AC Area in E model
E51
: Chilean and Peruvian models
MX
: Mexican model
Note on Printed Wiring Board:
•
X
: parts extracted from the component side.
•
Y
: parts extracted from the conductor side.
•
W
: indicates side identified with part number.
•
f
: internal component.
•
: Pattern from the side which enables seeing.
(The other layers' patterns are not indicated.)
Caution:
Pattern face side:
Parts on the pattern face side seen from
(Conductor Side)
the pattern face are indicated.
Parts face side:
Parts on the parts face side seen from
(Component Side)
the parts face are indicated.
•
Circuit Boards Location
C
B
These are omitted.
E
Q
B
These are omitted.
C
E
Q
Note: The components identified by mark
0
or dotted line
with mark
0
are critical for safety.
Replace only with part number specified.
CD board
SW board
MOTOR (LD) board
SENSOR board
DRIVER board
MOTOR (TB) board
TUNER (FM/AM)
KEY LEFT board
KEY TOP board
(GT55)
PANEL board
VOLUME board
KEY RIGHT board
USB board
MIC board
MAIN board
5V REG board
SUB WOOFER board (GT44/GT55)
AMP board
TC board
SW-SP board
(GT44/GT55)
TRANS board
D-LIGHT SYNC board (except Australian model)
Summary of Contents for HCD-GT22
Page 22: ...22 HCD GT22 GT44 GT55 MEMO ...
Page 97: ...97 HCD GT22 GT44 GT55 MEMO ...
