CDX-GT730UI/GT737UI/GT780UI
20
SECTION 4
DIAGRAMS
•
A
: B+ Line.
•
B
: B– Line.
• Voltages and waveforms are dc with respect to ground
under no-signal (detuned) conditions.
• no mark : FM
( ) : AM or MW
< > : CD PLAY
• Voltages are taken with VOM (Input impedance 10 M
Ω
).
Voltage variations may be noted due to normal production
tolerances.
• Waveforms are taken with a oscilloscope.
Voltage variations may be noted due to normal production
tolerances.
• Circled numbers refer to waveforms.
• Signal path.
J
:
CD
F
:
FM
f
: AM or MW
L
:
AUX
c
:
USB
g
:
BUS
AUDIO
• Abbreviation
EA
: Saudi Arabia model
MX
: Mexican model
IT
: Italian model
RU
: Russian model
For schematic diagrams:
Note:
• 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
specifi ed.
•
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.)
Caution:
Pattern face side:
(SIDE B)
Parts face side:
(SIDE A)
Parts on the pattern face side seen from
the pattern face are indicated.
Parts on the parts face side seen from
the parts face are indicated.
THIS NOTE IS COMMON FOR PRINTED WIRING
BOARDS AND SCHEMATIC DIAGRAMS.
(In addition to this, the necessary note is printed in
each block.)
• Abbreviation
EA
: Saudi Arabia model
MX
: Mexican model
IT
: Italian model
RU
: Russian model
• Waveforms
– MAIN Board –
Note:
The components identifi ed by mark
0
or dotted
line with mark
0
are critical for safety.
Replace only with part number specifi ed.
– KEY Board –
