Sony DSK-GTX999 / HCD-GTX999 Service Manual ▷ View online
HCD-GTX999
13
SECTION 4
TEST MODE
COLD RESET
The cold reset clears all data including preset data stored in the
memory to initial conditions. Execute this mode when returning
the set to the customer.
Procedure:
1. In the standby status, press the [
memory to initial conditions. Execute this mode when returning
the set to the customer.
Procedure:
1. In the standby status, press the [
?/1
] button to turn the power
on.
2. Press three buttons of [
x
], [ENTER] and at last [
?/1
] simulta-
neously.
3. The set enters standby status.
COMMON TEST MODE
Procedure:
1. Press the [
1. Press the [
?/1
] button to turn the power on.
2. Press three buttons of [
x
], [GROOVE], and [
Z
] simultane-
ously.
3. It enters the common test mode and the “PLAY SLEEP” seg-
ment on the fl uorescent indicator tube blinks.
4. Each time the [VOLUME] dial is turned, “VOLUME MIN”
and “VOLUME MAX” are displayed.
5. Each time the [EQ] button on the remote commander is
pressed, “TONE MAX”, “TONE MIN” and “TONE FLAT”
are displayed.
are displayed.
6. To release from this mode, press the [
?/1
] button to turn the
power off.
PANEL TEST MODE
Enter The Panel Test Mode
Procedure:
1. In the standby status, press the [
Procedure:
1. In the standby status, press the [
?/1
] button to turn the power
on.
2. Press three buttons of [ILLUMINATION], [
x
], and [
Z
] simul-
taneously.
3. When the panel test mode is activated, LEDs and segments of
the fulorescent indicator tube are all turned on.
Version Check
Procedure:
1. In the panel test mode (all LEDs and segments of the fulores-
Procedure:
1. In the panel test mode (all LEDs and segments of the fulores-
cent indicator tube are turned on), press the [BACK] button.
2. On the fulorescent indicator tube, model name, destination,
MC version and its last updated date are displayed.
3. Each time [BACK] button is pressed, the display changes start-
ing from MC, GC, GENE, GNS, HDD, USB, CD, CDMA,
CDMB, ST, TA and TM version this order, and returns to the
MC version display.
CDMB, ST, TA and TM version this order, and returns to the
MC version display.
4. To release from this mode, press three buttons of [ILLUMINA-
TION], [
x
], and [
Z
] simultaneously.
Key Test Mode
Procedure:
1. In the panel test mode (all LEDs and segments of the fulores-
Procedure:
1. In the panel test mode (all LEDs and segments of the fulores-
cent indicator tube are turned on), press the [ENTER] button.
2. The message “KEY 0/35 VOL 0” displayed. Whenever any
buttons are pressed and the [VOLUME] dial is turned, the val-
ue is changed. All key pressed, display becomes “KEY 35/35”
and “KEY OK”.
ue is changed. All key pressed, display becomes “KEY 35/35”
and “KEY OK”.
3. To release from this mode, press three buttons of [ILLUMINA-
TION], [
x
], and [
Z
] simultaneously.
TUNER STEP CHANGE
The AM tuning interval can be changed over 9 kHz or 10 kHz.
Procedure:
1. Press the [
Procedure:
1. Press the [
?/1
] button to turn the power on.
2. Press the [TUNER/BAND] button to select TUNER (AM)
function.
3. Press the [
?/1
] button again to turn the power off (standby).
4. After pressing the [DISPLAY] button while pressing the
[TUNE + M L] button, press the [
?/1
] button.
5. It turns power on and display “9k STEP” or “10k STEP”, and
thus the tuning interval is changed over.
CD SHIP MODE
This mode can run the CD sled motor optionally. Use this mode,
for instance, when cleaning the optical pick-up.
Procedure:
1. Press the [
for instance, when cleaning the optical pick-up.
Procedure:
1. Press the [
?/1
] button to turn the power on.
2. Confi rm there is no disc in all trays.
3. Press the [FUNCTION] button to select CD function.
4. Press two buttons of [OPTIONS] and [
3. Press the [FUNCTION] button to select CD function.
4. Press two buttons of [OPTIONS] and [
?/1
] simultaneously.
5. Set to the CD ship mode. (chucking on)
6. After blink “STANDBY”, “LOCK” is displayed, disconnect
6. After blink “STANDBY”, “LOCK” is displayed, disconnect
the AC plug.
CD TRAY LOCK
This mode is for the antitheft of CD disc in shop. (not for trans-
port)
Procedure:
1. Press the [
port)
Procedure:
1. Press the [
?/1
] button to turn the power on.
2. Press the [FUNCTION] button to select CD function.
3. Insert a disc.
4. While pressing the [
3. Insert a disc.
4. While pressing the [
x
] button, press the [
Z
] button for more 5
seconds.
5. The message “LOCKED” is displayed and the disc tray is
locked. (Even if exiting from this mode, the disc tray is still
locked)
locked)
6. If press the [
Z
] button to eject the disc, the message “LOCKED”
is displayed and can not eject the disc.
7. To release this lock, while pressing the [
x
] button, press the
[
Z
] button for 5 seconds again.
8. The message “UNLOCKED” is displayed and the disc tray is
unlocked.
VACS ON/OFF MODE
VACS on/off change mode.
Procedure:
1. Press the [
Procedure:
1. Press the [
?/1
] button to turn the power on.
2. Press three buttons of [TUNING
− l m], [CHORUS],
and [
M
] simultaneously.
3. VACS mode on. (not displayed)
To VACS mode off, do the step 2 again.
VACS DISPLAY ON/OFF MODE
VACS mode state display.
Procedure:
1. Press the [
Procedure:
1. Press the [
?/1
] button to turn the power on.
2. Press three buttons of [TUNING
− l m], [CHORUS],
and [
m
] simultaneously.
3. The message “VACS
∗ AC−−” or “VACS OFF AC−−” is dis-
played.
∗: 1 to 6 (VACS level)
−−: power supply frequency
4. To release from this mode, do the step 2 again.
Note: Never execute the item because the set might not operate
normally when the item being written, “Not used for the
servicing.” in each item is executed.
servicing.” in each item is executed.
HCD-GTX999
14
SW DISPLAY ON/OFF MODE
Subwoofer level setting and check mode.
Procedure:
1. Press the [
Procedure:
1. Press the [
?/1
] button to turn the power on.
2. Press three buttons of [TUNING
− l m], [CHORUS],
and [,] simultaneously.
3. The message “SWxxdB AD
∗∗∗” or “SW OFF AD∗∗∗” is dis-
played.
xx: 0, 4, 7, 10
∗∗∗: 0∗∗ to 1∗∗ (subwoofer level VR)
4. To release from this mode, do the step 2 again.
HDD TEST MODE
The CDDB version display, custom DB initialization, HDD writ-
ing/reading test, HDD test data deletion, format, HDD setup and
initialization mode for factory can be executed in this mode.
ing/reading test, HDD test data deletion, format, HDD setup and
initialization mode for factory can be executed in this mode.
Enter The HDD Test Mode
Procedure:
1. In the standby status, press the [
Procedure:
1. In the standby status, press the [
?/1
] button to turn the power
on.
2. Press three buttons of [TUNE – l m], [GROOVE] and
[m] simultaneously.
3. When the HDD test mode is activated.
1. CDDB Version Display
The version of CDDB built into HDD is displayed.
Procedure:
1. Enter the HDD test mode.
2. Press the [M]/[m] buttons to select the “CDDB Version”, and
The version of CDDB built into HDD is displayed.
Procedure:
1. Enter the HDD test mode.
2. Press the [M]/[m] buttons to select the “CDDB Version”, and
press the [ENTER] button.
3. The version of CDDB is displayed on the fl uorescent indicator
tube.
2. Custom DB Initialization
The initialization of custom DB recorded in HDD is executed.
The initialization of custom DB recorded in HDD is executed.
Note: Not used for the servicing.
Procedure:
1. Enter the HDD test mode.
2. Press the [M]/[m] buttons to select the “Custom Init”, and press
1. Enter the HDD test mode.
2. Press the [M]/[m] buttons to select the “Custom Init”, and press
the [ENTER] button.
3. The
following
fi les in HDD are deleted.
• ROOT\SYSTEM\CCUDB\CCU.EDB
• ROOT\SYSTEM\CCUDB\CCU.IDX
• ROOT\SYSTEM\CCUDB\CCUTOC.IDX
• ROOT\SYSTEM\CCUDB\SCCU.EDB
• ROOT\SYSTEM\CCUDB\SCCU.IDX
• ROOT\SYSTEM\CCUDB\SCCUTOC.IDX
• ROOT\SYSTEM\CCUDB\CCU.IDX
• ROOT\SYSTEM\CCUDB\CCUTOC.IDX
• ROOT\SYSTEM\CCUDB\SCCU.EDB
• ROOT\SYSTEM\CCUDB\SCCU.IDX
• ROOT\SYSTEM\CCUDB\SCCUTOC.IDX
3. HDD Writing/Reading Test
The writing/reading of test data is done to HDD, and whether it
operates normally is checked.
The writing/reading of test data is done to HDD, and whether it
operates normally is checked.
Note: Not used for the servicing.
Procedure:
1. Enter the HDD test mode.
2. Press the [M]/[m] buttons to select the “HDD W/R Test”, and
1. Enter the HDD test mode.
2. Press the [M]/[m] buttons to select the “HDD W/R Test”, and
press the [ENTER] button.
3. The writing reading of the test data is done to HDD, and the
result is displayed.
When the writing/reading of the test data ends normally, the
written test data is deleted.
• W/R Test OK : The writing/reading of the test data ended
written test data is deleted.
• W/R Test OK : The writing/reading of the test data ended
normally.
• W/R NG
: Abnormality occurred in the writing/reading
of the test data.
• Erase NG
: It failed in the deletion of the test data.
4. Format
The deletion of all folders and fi les in HDD is executed.
The deletion of all folders and fi les in HDD is executed.
Note 1: Not used for the servicing.
Note 2: When this mode is executed, all data including the SYSTEM fi le
Note 2: When this mode is executed, all data including the SYSTEM fi le
in HDD is deleted.
Procedure:
1. Enter the HDD test mode.
2. Press the [M]/[m] buttons to select the “Format”, and press the
1. Enter the HDD test mode.
2. Press the [M]/[m] buttons to select the “Format”, and press the
[ENTER] button.
3. All folders and fi les in HDD are deleted.
5. HDD Setup
The installation of initial data is executed from the USB memory
to HDD.
The installation of initial data is executed from the USB memory
to HDD.
Note 1: Not used for the servicing.
Note 2: The SYSTEM fi le and the DEMO tune are copied from USB
Note 2: The SYSTEM fi le and the DEMO tune are copied from USB
memory after all data in HDD is deleted with format when this
mode is executed, and HDD can be returned to the state of initial-
ization (It takes the time of about 80 minutes).
mode is executed, and HDD can be returned to the state of initial-
ization (It takes the time of about 80 minutes).
Procedure:
1. Connect the USB memory where initial data is recorded to the
1. Connect the USB memory where initial data is recorded to the
set.
2. Enter the HDD test mode.
3. Press the [M]/[m] buttons to select the “Setup”, and press the
3. Press the [M]/[m] buttons to select the “Setup”, and press the
[ENTER] button.
4. The following data is copied from the USB memory to HDD.
• ROOT\SYSTEM\TitleUpdater.exe
• ROOT\SYSTEM\TitleUpdaterVersion.txt
• ROOT\SYSTEM\UCODE.DAT
• ROOT\SYSTEM\CDDB\ecddb.idx
• ROOT\SYSTEM\CDDB\ecddb.mdt
• ROOT\SYSTEM\CDDB\elists.db
• ROOT\MUSIC\(File of description to “MUJIC\music.txt”)
• ROOT\SYSTEM\TitleUpdaterVersion.txt
• ROOT\SYSTEM\UCODE.DAT
• ROOT\SYSTEM\CDDB\ecddb.idx
• ROOT\SYSTEM\CDDB\ecddb.mdt
• ROOT\SYSTEM\CDDB\elists.db
• ROOT\MUSIC\(File of description to “MUJIC\music.txt”)
6. Initialization Mode For Factory
The user use areas other than the “Sony Demo” artist in HDD are
initialized, and the cold reset is executed.
Procedure:
1. Enter the HDD test mode.
2. Press the [M]/[m] buttons to select the “FactoryPreset”, and
The user use areas other than the “Sony Demo” artist in HDD are
initialized, and the cold reset is executed.
Procedure:
1. Enter the HDD test mode.
2. Press the [M]/[m] buttons to select the “FactoryPreset”, and
press the [ENTER] button.
3. Press the [M]/[m] buttons to select the “OK?”, and press the
[ENTER] button.
4. All
folder/fi le in the following folders in HDD is deleted.
• ROOT\SYSTEM\CCUDB
• ROOT\MUSIC (excluding folder/fi le that belongs to “Sony
• ROOT\MUSIC (excluding folder/fi le that belongs to “Sony
Demo” artist)
5. After initialization ends, the cold reset is executed.
Note: Never execute the item because the set might not operate
normally when the item being written, “Not used for the
servicing.” in each item is executed.
servicing.” in each item is executed.
HCD-GTX999
HCD-GTX999
15
15
HDD FACTORY SHIPMENT TEST MODE
The user use areas in HDD are initialized, and the cold reset is
executed.
executed.
Note: When this mode is executed, all the MUSIC data including the
DEMO tune in HDD is deleted (The SYSTEM fi le is not deleted).
Execute this mode after it notes it enough when executing it because
all the MUSIC data and CDDB updates that the user recorded are
deleted.
deleted.
Procedure:
1. In the standby status, press the [
1. In the standby status, press the [
?/1
] button to turn the power
on.
2. Press three buttons of [
x], [GROOVE] and [HDD REC] si-
multaneously.
3. Press the [
M]/[m] buttons to select the “OK?”, and press the
[ENTER] button.
4. All
folder/fi le in the following folders in HDD is deleted.
• ROOT\SYSTEM\CCUDB
• ROOT\MUSIC
• ROOT\MUSIC
5. After initialization ends, the cold reset is executed.
SECTION 5
ELECTRICAL CHECKS
Note:
1. CD Block is basically designed to operate without adjustment. There-
1. CD Block is basically designed to operate without adjustment. There-
fore, check each item in order given.
2. Use YEDS-18 disc (3-702-101-01) unless otherwise indicated.
3. Use an oscilloscope with more than 10 M
3. Use an oscilloscope with more than 10 M
Ω impedance.
4. Clean the object lens by an applicator with neutral detergent when the
signal level is low than specifi ed value with the following checks.
RF LEVEL CHECK
TP216 (RFACO)
CD board
oscilloscope
TP5 (VC)
Procedure:
1. Connect an oscilloscope TP216 (RFACO) and TP5 (VC) on
1. Connect an oscilloscope TP216 (RFACO) and TP5 (VC) on
the CD board.
2. Turn the power ON.
3. Load a disc (YEDS-18) and playback.
4. Confi rm that oscilloscope waveform is clear and check if RF
3. Load a disc (YEDS-18) and playback.
4. Confi rm that oscilloscope waveform is clear and check if RF
signal level is correct or not.
Note: Clear RF signal waveform means that the shape “ ◊ ” can be clearly
distinguished at the center of the waveform.
RF signal waveform
VOLT/DIV : 200 mV
TIME/DIV : 500 ns
TIME/DIV : 500 ns
level : 1.1 ± 0.3 Vp-p
E-F BALANCE (1 TRACK JUMP) CHECK
TP3 (TEI)
TP5 (VC)
TP5 (VC)
CD board
oscilloscope
Procedure:
1. Connect an oscilloscope to TP3 (TEI) and TP5 (VC).
2. Turn the power ON.
3. Load a disc (YEDS-18) and playback the number 5 track.
4. Confi rm that the level B and A (DC voltage) on the oscillo-
1. Connect an oscilloscope to TP3 (TEI) and TP5 (VC).
2. Turn the power ON.
3. Load a disc (YEDS-18) and playback the number 5 track.
4. Confi rm that the level B and A (DC voltage) on the oscillo-
scope waveform.
level = 1.3 ± 0.6 Vp-p symmetry
A (DC voltage)
center of
waveform
waveform
B
DVC
1 track jump waveform
CD SECTION
Connecting and Adjustment Location: CD board
TP3
(TEI)
(TEI)
TP5
(VC)
(VC)
TP216
(RFACO)
(RFACO)
– CD BOARD (CONDUCTOR SIDE) –
TUNER SECTION
FM TUNE LEVEL CHECK
signal
generator
set
Procedure:
1. Turn on the set.
2. Input the following signal from signal generator to FM antenna
1. Turn on the set.
2. Input the following signal from signal generator to FM antenna
input directly.
Carrier frequency : A = 87.5 MHz, B = 98 MHz, C = 108 MHz
Deviation
: 75 kHz
Modulation
: 1 kHz
ANT input
: 35 dBu (EMF)
Note: Use 75 ohm coaxial cable to connect signal generator and the set.
You cannot use video cable for checking.
Use signal generator whose output impedance is 75 ohm.
3. Set to FM tuner function and tune A, B and C signals.
4. Confi rm “TUNED” is lit on the display for A, B and C sig-
nals.
When the selected station signal is received in good condition,
“TUNED” is displayed.
HCD-GTX999
HCD-GTX999
16
16
SECTION 6
DIAGRAMS
6-1. BLOCK DIAGRAM - CD SERVO, PANEL Section -
USB SYSTEM CONTROLLER
SYSTEM CONTROLLER
IC201 (1/5)
IC2 (1/2)
OPTICAL PICK-UP
BLOCK
(KSM215DHAP)
A
B
E
F
LD
VC
+3.3V
GND
PD
VR
LD DRIVER
Q321
FOCUS
COIL
TRACKING
COIL
C
D
IC401
SPINDLE/SLED MOTOR DRIVER,
FOCUS/TRACKING COIL DRIVER
FOCUS/TRACKING COIL DRIVER
VO1+
52
VO1–
47
VO2+
56
VO2–
55
F–
F+
T–
T+
+
–
+
–
35
IN1+
34
IN1–
32
IN2+
31
IN2–
27
IN3+
26
IN3–
24
IN4R
19
SW
MDP
6
SRDR
10
SFDR
9
TRDR
12
TFDR
11
FRDR
14
FFDR
13
8
STBY
DIGITAL SERVO, DIGITAL SIGNAL PROCESSOR, D/A CONVERTER
IC201
71
DOUT
104
XLAT
115
SCOR
7
SSTP
78
XTAI
77
XTAO
100
XRST
S201
(LIMIT IN)
X201
D441
D440
67.7376MHz
BD_XLAT
BD_GAIN–SW
BD_XTACN
BD_SCOR
BD_XRST
107
SENS
BD_SENS
VC
25
A
26
B
27
C
28
D
29
E
19
F
20
LD
36
PD
37
23
IN4
95
XTACN
102
DATA
BD_DATA
BD_CLK
105
120
122
117
121
116
CLOK
VO4+
M
VO4–
M401
(SPINDLE)
VO3+
M
VO3–
M402
(SLED)
10
5
2
1
CD LOADING
MOTOR DRIVE
IC204
2
9
7
4
51
CDM OPEN SW
52
CDM CLOSE SW
54
CDM LOAD IN
53
CDM LOAD OUT
M
+
–
S001
CD TRAY
OPEN/CLOSE DETECT
M001
(LOADING)
CLOSE
OPEN
I–
I+
O–
O+
135
130
119
AOUT1
AOUT2
R-CH
CD-L
: CD PLAY
SIGNAL PATH
R-ch is omitted due to same as L-ch.
A
DOUT
B
86
81
FLUORESCENT
INDICATOR TUBE
FL721
30 IIC_DATA
29 IIC_CLK
12 RESET
29 IIC_CLK
12 RESET
36
VFD_LAT
35
37
37
28
VFD_DATA
VFD_CLK
VFD_BK
72
GC_RESET
30
29
29
IIC_DATA
IIC_CLK
KEY0 – KEY3
DISPLAY CONTROLLER
IC701
X701
5MHz
XOUT
XIN
13
15
X202
32.768kHz
XCOUT
XCIN
11
10
X201
5MHz
XOUT
XIN
13
15
VOLUM JOG
MASTER VOLUME
92
SIRCS
4
ROTARY
ENCODER
S661
REMOTE CONTROL
RECEIVER
IC711
DATA
SELECTOR
IC741
S601, 602,
S607 – 617,
S622 – 630, 702,
S821 – 828,
S831, 851
I/
STANDBY LED
75
D855
S855
D855, S855
(POWER ILLUMINATOR)
LED_SEG_6 1
LED DRIVE
Q604
D607, 608
USB
D602
(USB)
(USB ACCESS (RED))
D837
HDD
D841, 842
(POWER ILLUMINATOR)
LED_SEG_5 2
LED DRIVE
Q603
D605, 606
(POWER ILLUMINATOR)
LED_SEG_4 3
LED DRIVE
Q602
D603, 604
HDD
LED_SEG_3 4
D601
ENTER
LED_SEG_2 5
LED DRIVE
Q605
D609
(ILLUMINATION BAR)
LED DRIVE
Q705
D851, 856
KEY_WAKE_UP_
POWER
POWER
74
4 CD-PO
RESET SWITCH
Q963, 964
S701
KEY_WAKE_UP_
DISPLAY
DISPLAY
73
DISPLAY
SWITCHING
Q741
93 – 95, 97
HDD REC
LED_SEG_1 6
LED DRIVE
Q831
D836
LED_SEG_0 7
LED DRIVE
Q832
LED DRIVE
Q601
REGULATOR
Q701, 702
REGULATOR
Q703, 704
26
LED_COMMON_0
24
LED_COMMON_1
SEL A B+
SEL B B+
+12V
REC
BPF4
BPF3
BPF2
BPF1
86 BPF1
87 BPF2
88 BPF3
89 BPF4
90 ALL-BAND
87 BPF2
88 BPF3
89 BPF4
90 ALL-BAND
C
BPF1 – BPF4, REC
(USB)
(POWER ON (BLUE))
D835
(Page 18)
(Page 18)
(Page 17)
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