Sony CDX-GT820IP Service Manual ▷ View online
CDX-GT820IP
13
3-10. OPTICAL PICK-UP SECTION
3-11. OPTICAL PICK-UP
optical pick-up section
Note: Be careful not to touch the lens and hologram
terminal when removing the optical pick-up section.
There is space at the end of the
leaf spring (sub guide) to avoid
contact with the slide.
leaf spring (sub guide) to avoid
contact with the slide.
pan tapping screw
(M
1.4
× 2.5)
leaf spring (sub guide)
leaf spring (OP)
optical pick-up
lead screw assy
Notes for Assembly
Prevent the end of the
leaf spring (sub guide) from being
in contact with the OP slide base.
leaf spring (sub guide) from being
in contact with the OP slide base.
Prevent the end of the
leaf spring (sub guide) from being
in contact with the OP slide base.
leaf spring (sub guide) from being
in contact with the OP slide base.
CDX-GT820IP
14
SECTION 4
DIAGNOSIS FUNCTION
Reset count display
01
XX
Reset count by watchdog timer display
02
XX
Number of connected units display
03
XXX
Operating hours display
04
XXXX
CD error information display
05
XX
OFFSET/FAILURE error display
06
XXXXX
1
1
1
01
XX
Reset count
(in hexadecimal format)
Diag code
01: Reset count
Reset count
(in hexadecimal format)
02
XX
Diag cord
02: Number of resets by watchdog timer
03
1
XXX
Diag code
03: Number of connected unit
Recency of information
1 - 3: 1 represents the latest.
Show the number of connected units for
CD-C, MD-C and XM respectively from
the rightmost (in hexadecimal format).
No. of connected units history 1 (latest) display
No. of connected units history 2 display
No. of connected units history 3 display
03
1
XXX
XXX
XXX
03
03
2
3
04
XXXX
Operating hours
(in hexadecimal format)
Diag code
04: Operating hours
Description of the Diagnostics function:
1. Setting the Diag display mode
With the power off, press the [4/ALBUM +] button, [5] button,
and [4/ALBUM +] button on the set body or the remote control
(for more than 2 seconds) in turn.
and [4/ALBUM +] 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 [
M >/
SEEK+] or [
. m/
SEEK–] keys.
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 [4/ALBUM +] or
[3/ALBUM –] keys during the number of connected units display
mode.
[3/ALBUM –] keys during the number of connected units display
mode.
4-4. Operating hours display mode
CDX-GT820IP
15
Diag code
05: CD error information
Recency of information
1 - 3: 1 represents the latest.
Error description
(in hexadecimal
format)
05
1
XX
Error information
Indication
Description
1X
SERVO ERROR
3X
LOADING ERROR
4X
TRACK JUMP
5X
TEXT ERROR
FX
MECHA ERROR
Diag code
05: CD error information
05
1
XXXX
X
Recency of information
1 - 3: 1 represents the latest.
Operating hours
Disc type
Disc type
Indication
Disc type
0
MP3
1
WMA
2
AAC
3
ATRAC
8
CD-DA
F
UNKNOWN
05
05
1
1
05
05
2
2
05
05
3
3
XX
XX
XX
XXXXX
XXXXX
XXXXX
CD error info history 1 (latest)
Error description plus error details display
CD error info history 1 (latest)
Disc type plus operating hours display
CD error info history 2
Error description plus error details display
CD error info history 2
Disc type plus operating hours display
CD error info history 3
Error description plus error details display
CD error info history 3
Disc type plus operating hours display
Diag code
06: OFFSET/FAILURE
Error description
(0: OFFSET, 1: FAILURE)
06
1
XXXX
X
Recency of information
1 - 3: 1 represents the latest.
Operating hours
06
06
06
1
2
3
XXXXX
XXXXX
XXXXX
OFFSET/FAILURE error history 1 (latest) display
OFFSET/FAILURE error history 2 display
OFFSET/FAILURE error history 3 display
4-6. OFFSET/FAILURE error display mode
The display mode is switched by each rotation of [4/ALBUM +] or
[3/ALBUM –] keys during the OFFSET/FAILURE error display
mode.
[3/ALBUM –] keys during the OFFSET/FAILURE error display
mode.
4-5. CD error information display mode
4-5-1. Error description
4-5-1. Error description
4-5-2. Operating hours
The display mode is switched by each rotation of [4/ALBUM +]
or [3/ALBUM –] keys during the CD error information display
mode.
or [3/ALBUM –] keys during the CD error information display
mode.
CDX-GT820IP
16
(D905) I-12
(D906) G-10
(D907) H-10
(D908) I-11
(D907) H-10
(D908) I-11
(D909) H-10
(D910) H-10
(D911) I-10
(D910) H-10
(D911) I-10
(D912) I-10
(D913) I-10
(D914) H-10
(D915) H-10
(D916) H-9
(D915) H-10
(D916) H-9
(D917) G-5
(D918) G-5
(IC901) H-7
(IC902) H-9
IC903
D-3
LED901 C-5
LED902 B-5
LED903 A-2
LED904 B-2
LED906 C-2
LED907 D-2
LED908 C-5
LED909 D-7
LED910 D-6
LED911 D-8
LED912 D-8
LED913 D-10
LED914 D-9
LED914 D-9
LED915 D-12
LED916 D-11
LED917 C-3
LED916 D-11
LED917 C-3
LED918 B-3
LED919 C-3
LED920 C-4
(Q902) H-4
(Q903) H-4
(Q904) H-4
(Q905) H-4
(Q910) H-9
(Q911) H-10
SECTION 5
DIAGRAMS
Ref. No. Location
• Semiconductor Location (KEY Board)
Ref. No. Location
( ) :SIDE B
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