Sony CDX-GT373A Service Manual ▷ View online
CDX-GT373A
13
3-11. OPTICAL PICK-UP SECTION
3-12. 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-GT373A
14
SECTION 4
DIAGNOSIS FUNCTION
Description of the Diagnostics function:
1. Setting the Diag display mode
With the power off, press the [4] button, [5] button, and [4]
button on the set body or the remote control (for more than 2
seconds) in turn.
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
+] or [
.
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 [2/ALBM+] or
[1/ALBM–] keys during the number of connected units display
mode.
[1/ALBM–] keys during the number of connected units display
mode.
4-4. Operating hours display mode
Reset count display
Reset count by watchdog timer display
99
Number of connected units display
Operating hours display
CD error information display
OFFSET/FAILURE error display
99999
99
9999
999
99
Reset count
(in hexadecimal format)
Diag code
01: Reset count
99
Reset count
(in hexadecimal format)
Diag cord
02: Number of resets by
watchdog timer
99
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).
999
No. of connected units history 1 (latest) display
No. of connected units history 2 display
No. of connected units history 3 display
999
999
999
Operating hours
(in hexadecimal format)
Diag code
04: Operating hours
9999
CDX-GT373A
15
4-5. CD error information display mode
4-5-1. Error description
4-5-1. Error description
4-5-2. Disc type and operating hours
The display mode is switched by each rotation of [2/ALBM+] or
[1/ALBM–] keys during the CD error information display mode.
[1/ALBM–] keys during the CD error information display mode.
4-6. OFFSET/FAILURE error display mode
The display mode is switched by each rotation of [2/ALBM+] or
[1/ALBM–] keys during the OFFSET/FAILURE error display
mode.
[1/ALBM–] keys during the OFFSET/FAILURE error display
mode.
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
Diag code
05: CD error information
Recency of information
1-3: 1 represents the
latest.
Error description
(in hexadecimal
format)
99
Diag code
05: CD error information
Recency of information
1-3: 1 represets the
latest.
Operating hours
99999
Disc type
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
99
99999
99
99999
99
99999
Operating hours
Error description
(0: OFFSET, 1: FAILURE)
Recency of information
1-3: 1 represets the latest
Diag code
06: OFFSET/FAILURE
99999
OFFSET/FAILURE error history 1 (latest) display
OFFSET/FAILURE error history 2 display
OFFSET/FAILURE error history 3 display
99999
99999
99999
CDX-GT373A
16
SECTION 5
ELECTRICAL ADJUSTMENTS
MIC SENSITIVITY ADJUSTMENT
•Replace all of the follwing parts at the same time when
replacing the microphone (MIC901) or if there is any faulty
semi-fi xed resistor (R290) .
replacing the microphone (MIC901) or if there is any faulty
semi-fi xed resistor (R290) .
• MIC901 : Part No. 1-542-689-41
• R211
: 6.8 k
Ω t 3.3 kΩ, No. 1-218-859-11
• R290
: 47 k
Ω t No mount
• R291
: No mount
t 0 Ω, No. 1-216-864-11
• C211
: 0.1
μF, t 0.22 μF, Part No. 1-127-715-11
C203
C509
R217
C215
D200
R219
C216
R218
R204
R203
R251
R250
-MAIN BOARD-
R261
R260
R206
R262
IC201
C210
R210
R212
R205
R211
R519
D502
IC200
JC24
R533
R532
JC17
C211
C201
R213
R215
R214
C213
R216
C263
JC262
R263
R264
C290
R292
TH270 JC270
S103
MIC901
RESET
JW61
JW57
JW55
C212
JW53
JW59
JW56
JW52
JW54
JW58
CN200
1
2
JW60
C214
R290
R290
R211
C211
R291
R291
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