DOWNLOAD Sony CDX-GT527EE / CDX-GT570 / CDX-GT570S Service Manual ↓ Size: 6.33 MB | Pages: 46 in PDF or view online for FREE

Model
CDX-GT527EE CDX-GT570 CDX-GT570S
Pages
46
Size
6.33 MB
Type
PDF
Document
Service Manual
Brand
Device
Car Audio
File
cdx-gt527ee-cdx-gt570-cdx-gt570s.pdf
Date
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17
CDX-GT527EE/GT570/GT570S
SECTION 4
DIAGNOSIS FUNCTION
Description of the Diagnostics function:
1. Setting the Diag display mode
With the power off, press the [4/SHUF] button, [5] button, and
[4/SHUF] button on the set body or the remote control (for more
than 2 seconds) in turn.
2. Canceling the Diag display mode
During the Diag function mode, press the [OFF] button.
3. Initial display in the Diag display mode
Just when the Diag mode is entered, “reset count” is displayed.
The display mode is switched by each rotation of
 
SEEK +/
M
 
>
  or  SEEK –/
.
 
m
 
 buttons.
4. Contents of each display mode
4-1. Reset count display mode
4-2. Reset count by watchdog timer display mode
4-3. Number of connected units display mode
The display mode is switched by each rotation of [ALBM +] or [ALBM
--] buttons during the number of connected units display mode.
Reset count display
OFFSET/FAILURE error display
CD error information display
Operating hours display
Number of connected units display
Reset count by watchdog timer display
Reset count
(in hexadecimal format)
Diag code
01: Reset count
Reset count
(in hexadecimal format)
Diag code
02: Number of resets by watchdog timer
Shown the number of connected units for
CD-C, MD-C and XM respectivery from
the rightmost (in hexadecimal format).
Recency of information
1 - 3: 1 represents the latest.
Diag code
03: Number of connected unit
No. of connected units history 1 (latest) display
No. of connected units history 3 display
No. of connected units history 2 display
18
CDX-GT527EE/GT570/GT570S
4-4. Operating hours display mode
4-5. CD error information display mode
4-5-1. Error description
4-5-2. Disc type and operating hours
The display mode is switched by each rotation of [ALBM +] or [ALBM
--] buttons during the CD error information display mode.
Error description
(in hexadecimal
format)
Recency of information
1 - 3: 1 represents the latest.
Diag code
05: CD error information
Operating hours
Recency of information
1 - 3: 1 represents the latest.
Diag code
05: CD error information
Disc type
CD error info history 1 (latest)
Error description plus error details display
CD error info history 3
Disc type plus operating hours display
CD error info history 3
Error description plus error details display
CD error info history 2
Disc type plus operating hours display
CD error info history 2
Error description plus error details display
CD error info history 1 (latest)
Disc type plus operating hours display
Error information
Indication
Description
1X
SERVO ERROR
3X
LOADING ERROR
4X
TRACK JUMP
5X
TEXT ERROR
FX
MECHA ERROR
Disc type
Indication
Disc type
0
MP3
1
WMA
2
AAC
3
ATRAC
8
CD-DA
F
UNKNOWN
Operating hours
(in hexadecimal format)
Diag code
04: Operating hours
19
CDX-GT527EE/GT570/GT570S
Operating hours
Recency of information
1 - 3: 1 represents the latest.
Diag code
06: OFFSET/FAILURE
Error description 
(0: OFFSET, 1: FAILURE)
OFFSET/FAILURE error history 1 (latest) display
OFFSET/FAILURE error history 3 display
OFFSET/FAILURE error history 2 display
4-6. OFFSET/FAILURE error display mode
The display mode is switched by each rotation of [ALBM +] or [ALBM
--] buttons during the OFFSET/FAILURE error display mode.
20
CDX-GT527EE/GT570/GT570S
SECTION 5
DIAGRAMS
• Waveforms
— MAIN Board —
for schematic diagram:
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
specified.
•
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.)
•
A
: B+ Line.
•
B
: B– Line.
•
H
: adjustment for repair.
• Voltages and waveforms are dc with respect to ground
under no-signal (detuned) conditions.
   no mark : FM
(
 
 
) :  MW
<
> : CD
• Voltages are taken with a 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
: MW
g
: AUDIO
L
: AUX
• Abbreviation
IND
: Indian model
MX
: Mexican model
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.
THIS NOTE IS COMMON FOR PRINTED WIRING BOARDS AND SCHEMATIC DIAGRAMS.
(In addition to this, the necessary note is printed in each block.)
Note: The components identified by mark 
0
 or dotted line
with mark 
0
 are critical for safety.
Replace only with part number specified.
2.1 Vp-p
8.664 MHz
1
  IC50 
9
 (XTI)
       (CDX-GT527EE only)
1 V/DIV, 50 nsec/DIV
1.6 Vp-p
32.768 kHz
2
  IC501 
ul
 (XOUT)
2.5 Vp-p
18.432 MHz
3
  IC501 
id
 (OSCOUT)
1 V/DIV, 50 nsec/DIV
1 V/DIV, 50 nsec/DIV
• Abbreviation
IND
: Indian model
MX
: Mexican model
Ver. 1.2
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