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21
21
HCD-XGR66/XGR600
SECTION 6
DIAGRAMS
Five screws (BVTT 3x6)
MAIN board
TUNER board
TC-B board
HEADPHONE board
CD-R board
FRONT INPUT board
KEY board
PANEL VR board
MIC board
MIC VR board
DOOR SW board
MOTOR board
LED board
BD board
SENSOR board
CD-L board
TC-A board
GAME board
PANEL FL board
TRANS board
SUB TRANS board
TUNER PACK (FM/AM TUNER UNIT)
PA board
6-1. CIRCUIT BOARD LOCATION
Note on Schematic Diagram:
• All capacitors are in
µ
F unless otherwise noted. pF:
µµ
F
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.
Note on Printed Wiring Boards:
•
X
: parts extracted from the component side.
•
: Pattern from the side which enables seeing.
(The other layers´ Patterns are not indicated.)
• Indication of transistor.
•
A
: B+ Line.
•
B
: B– Line.
•
H
: adjustment for repair.
• Voltages and waveforms are dc with respect to ground
under no-signal conditions.
BD board section
no mark: CD PLAY
Other board section
no mark: TUNER (FM/AM)
( ): TAPE PLAY
< >: TAPE REC
[ ]: CD PLAY
• 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)
E
: TAPE PALY (DECK A)
d
: TAPE PALY (DECK B)
G
: RECORD
J
: CD PALY (ANALOG OUT)
c
: CD PALY (DIGITAL OUT)
N
: MIC INPUT
Note:
The components identified by mark
0
or dotted line
with mark
0
are critical for safety.
Replace only with part number specified.
B
These are omitted.
C
E
Q
B
These are omitted.
C
E
Q
C
B
These are omitted.
E
Q