Sony CDX-1150 Service Manual

SERVICE MANUAL
SUPPLEMENT-1
File this supplement with the service manual.
Subject : Change of Main and Key Boards
When performing service and inspection, check the suffix of the part number of
the main and key boards.
– MAIN BOARD (SIDE B) –
MAIN Board Part No.
Former : 1-672-491-11
New
– KEY BOARD (SIDE B) –
KEY Board Part No.
Former : 1-672-492-11
New
CDX-1150
US Model
(ECN-CSB00629)
: 1-672-491-12
: 1-672-492-12
1 1
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
• All capacitors are in µF unless otherwise noted. pF: µµF
50 WV or less are not indicated except for electrolytics
and tantalums.
• All resistors are in Ω and
1 / W or less unless otherwise
4
specified.
• % : indicates tolerance.
• ¢ : internal component.
• C : panel designation.
Note: The components identified by mark ! or dotted line
with mark ! are critical for safety.
Replace only with part number specified.
• U : B+ Line.
• Power voltage is dc 14.4V and fed with regulated dc power
supply from ACC and BATT cords.
• Voltages are taken with a VOM (Input impedance 10 MΩ).
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 : FM
f : AM
J : CD
• (( )) : Page of supplement-1.
For printed wiring boards
• Y : parts extracted from the conductor side.
• ® : Through hole.
• ¢ : internal component.
• b : Pattern from the side which enables seeing.
(The other layer's patterns are not indicated.)
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.
• (( )) : Page of supplement-1.