Read Sony CDX-GT56UI Service Manual online
CDX-GT56UI/GT56UIW
2
2. DIAGRAMS
For Schematic Diagrams.
Note:
• All capacitors are in μF unless otherwise noted. (p: pF) 50
• All capacitors are in μF unless otherwise noted. (p: pF) 50
WV or less are not indicated except for electrolytics and
tantalums.
tantalums.
• All resistors are in Ω and 1/4 W or less unless otherwise
specifi ed.
• f : Internal component.
• C : Panel designation.
• C : Panel designation.
THIS NOTE IS COMMON FOR PRINTED WIRING BOARDS AND SCHEMATIC DIAGRAMS.
(In addition to this, the necessary note is printed in each block.)
(In addition to this, the necessary note is printed in each block.)
• A : B+ Line.
• Voltages are dc with respect to ground under no-signal
• Voltages are dc with respect to ground under no-signal
(detuned) conditions.
no mark : FM
• Voltages are taken with a VOM (Input impedance 10 M
• Voltages are taken with a VOM (Input impedance 10 M
).
Voltage variations may be noted due to normal production
tolerances.
• Signal path.
L :
L :
AUX
c :
USB
For Printed Wiring Boards.
Note:
• X : Parts extracted from the component side.
• Y : Parts extracted from the conductor side.
•
• X : Parts extracted from the component side.
• Y : Parts extracted from the conductor side.
•
: 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)
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.
from the pattern face are indicated.
Parts on the parts face side seen from
the parts face are indicated.
• Indication of transistor.
C
B
These are omitted.
E
Q
1. NEW/FORMER DISCRIMINATION
• Distinguish method by part No. printed on the KEY board
Former type : 1-884-821-11
New type
New type
: 1-884-821-21 or
1-884-821-22
– KEY Board (Side A) –
• Distinguish method by LCD driver IC (IC901) on the KEY
board
– KEY Board (Conductor Side) –
IC901
Former type : LC75839
New type
New type
: PT6587-LQ
Three kinds of following distinguish methods exist.
• Distinguish method by serial number printed on the model
number label
Displayed characters/values are example.
– Main unit (Bottom side) –
Model number label
Serial
number
Model
Destination
Former
type
New
type
type
CDX-GT56UI
US and
Canadian
models
1589832
or smaller
1589833
or lager
US model
(for CXS-
(for CXS-
GT5616F)
1591032
or smaller
1591033
or lager
CDX-GT56UIW
US model
1588217
or smaller
1588218
or lager
Ver. 1.3
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