Sony HCD-MX700NI / HCD-MX750NI Service Manual ▷ View online
HCD-MX700Ni/MX750Ni
17
SECTION 3
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 [
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 [
?
/
1
] button to turn the power
on.
2. Press two buttons of [ENTER] and [
?
/
1
] simultaneously.
3. When “RESET” appears, the set enters.
AUTO STANDBY MODE
This mode is used to change the automatic standby function.
With this function, the system enters standby mode automatically
in about 30 minutes when there is no operation or audio signal
output. By default, the automatic standby function is turned on.
Procedure:
1. Press the [
This mode is used to change the automatic standby function.
With this function, the system enters standby mode automatically
in about 30 minutes when there is no operation or audio signal
output. By default, the automatic standby function is turned on.
Procedure:
1. Press the [
?
/
1
] button to turn the power on.
2. Press the [
?
/
1
] button for 2 seconds.
3. The message “AUTO STANDBY” is displayed on the liquid
crystal element and the automatic standby OFF mode is set.
4. To turn this function on, press the [
?
/
1
] button again for 2 sec-
onds.
The message “AUTO STANDBY” is displayed on the liquid
crystal element and the automatic standby ON mode is set.
crystal element and the automatic standby ON mode is set.
COMMON TEST MODE
This mode is used to check operations of amplifi er.
Procedure:
1. Press the [
This mode is used to check operations of amplifi er.
Procedure:
1. Press the [
?
/
1
] button to turn the power on.
2. Press two buttons of [ENTER] and [FUNCTION] simultane-
ously.
3. When the COMMON test mode is activated, “AUDIO IN” is
displayed on the liquid crystal element and “
c PLAY SLEEP”
blink on the liquid crystal element.
4. Each time [EQ] button on the remote commander is pressed,
the display changes starting “TONE MAX”, “TONE MIN”
and “TONE FLAT” this order.
and “TONE FLAT” this order.
5. Turn the [VOLUME] knob counterclockwise, “VOLUME
MIN” is displayed on the liquid crystal element. Turn the
[VOLUME] knob clockwise, “VOLUME MAX” is displayed
on the liquid crystal element.
[VOLUME] knob clockwise, “VOLUME MAX” is displayed
on the liquid crystal element.
Releasing method:
Press the [
Press the [
?
/
1
] button to turn off the system.
PANEL TEST MODE
This mode is used to check the liquid crystal element, LED, model,
destination, software version and key.
Procedure:
1. Press the [
This mode is used to check the liquid crystal element, LED, model,
destination, software version and key.
Procedure:
1. Press the [
?
/
1
] button to turn the power on.
2. Press two buttons of [ENTER] and [
x
] simultaneously.
3. All segments on the liquid crystal element, [STANDBY] LED
light up.
4. Press the [ENTER] button, the model and destination are dis-
played on the liquid crystal element.
5. Press the [ENTER] button again, MC version is displayed on
the liquid crystal element.
6. Each time [ENTER] button is pressed, the display changes
starting from MC version, GC version, USBL version , USBM
version, NWA version, NWD version, NWM version, IPL ver-
sion, CD version, CDD version, CDMA version, CDMB ver-
sion, BDA version, BDB version, ST version, TA version and
TM version this order, and returns to the MC version display.
version, NWA version, NWD version, NWM version, IPL ver-
sion, CD version, CDD version, CDMA version, CDMB ver-
sion, BDA version, BDB version, ST version, TA version and
TM version this order, and returns to the MC version display.
7. When
[
x
] button is pressed while the MC version is displayed,
year, month and day of the software creation is displayed.
When [
When [
x
] button is pressed again, the display returns to the
MC version display.
8. Press the [OPTIONS] button, the key test mode is activated
and “K 0 V0” is displayed on the liquid crystal element.
9. Each time a button is pressed, “K” value increases. However,
once a button is pressed, it is no longer taken into account.
All keys are pressed, display becomes “K11” .
10. “V” value increases 2, 4, 6 ... if turn the [VOLUME] knob
clockwise, or it decreases 8, 6, 4 ... if turn the knob counter-
clockwise.
clockwise.
Releasing method:
Press two buttons of [ENTER] and [
Press two buttons of [ENTER] and [
x
] simultaneously, or discon-
nect the power cord.
CD SHIP MODE
This mode moves the optical pick-up to the position durable to
vibration. Use this mode when returning the set to the customer
after repair.
Procedure:
1. Press the [
This mode moves the optical pick-up to the position durable to
vibration. Use this mode when returning the set to the customer
after repair.
Procedure:
1. Press the [
?
/
1
] button to turn the power on.
2. Press the [FUNCTION] button to select “CD”.
3. Press two buttons of [OPTIONS] and [
3. Press two buttons of [OPTIONS] and [
?
/
1
] simultaneously.
4. After blink “STANDBY”, “LOCK” is displayed, disconnect
the AC plug.
CD SHIP MODE & MEMORY CLEAR
This mode is used to perform CD ship mode and cold reset simul-
taneously.
Procedure:
1. Press the [
This mode is used to perform CD ship mode and cold reset simul-
taneously.
Procedure:
1. Press the [
?
/
1
] button to turn the power on.
2. Press three buttons of [
x
] and [BACK] simultaneously.
3. After blink “STANDBY”, “LOCK” is displayed disconnect
the AC plug.
DISC TRAY LOCK MODE
This mode is used to unable to take sample disc out of disc tray in
the shop.
Procedure:
1. Press the [
This mode is used to unable to take sample disc out of disc tray in
the shop.
Procedure:
1. Press the [
?
/
1
] button to turn the power on.
2. Press the [
Z
] button to open the disc tray and set the CD disc.
3. Press the [
Z
] button to close the disc tray.
4. Press two buttons of [
x
] and [
Z
] for 5 seconds.
5. The message “LOCKED” is displayed on the liquid crystal el-
ement and the disc tray is locked. (Even if pressing the [
Z
] but-
ton, the message “LOCKED” is displayed on the liquid crystal
element and the disc tray is locked)
element and the disc tray is locked)
Releasing method:
1. Press two buttons of [
1. Press two buttons of [
x
] and [
Z
] for 5 seconds.
2. The message “UNLOCKED” is displayed on the liquid crystal
element and the disc tray is unlocked.
CD POWER MANAGE
This mode is used to changed over CD power on/off for decreasing
of reception noise in the tuner mode.
Procedure:
1. Press the [
This mode is used to changed over CD power on/off for decreasing
of reception noise in the tuner mode.
Procedure:
1. Press the [
?
/
1
] button to turn the power on.
2. Press the [FUNCTION] button to select “CD”.
3. Press the [
3. Press the [
?
/
1
] button again to turn the power off.
4. Press two buttons of [ +
v
] and [
?
/
1
] simultaneously.
5. The message “CD POWER ON” or “CD POWER OFF” is dis-
played on the liquid crystal element, and CD power on/off is
changed over in the tuner mode.
changed over in the tuner mode.
HCD-MX700Ni/MX750Ni
18
CD SERVICE MODE
This mode can run the CD sled motor freely. Use this mode, for
instance, when cleaning the optical pick-up.
Procedure:
1. Press the [
This mode can run the CD sled motor freely. Use this mode, for
instance, when cleaning the optical pick-up.
Procedure:
1. Press the [
?
/
1
] button to turn the power on.
2. Press the [FUNCTION] button to select “CD”.
3. Press three buttons of [
3. Press three buttons of [
x
] and [ +
v
] simultaneously, the
message “SERVICE MODE” is displayed on the liquid crystal
element.
element.
4. Press the [
l m
TUNE –] button to move the optical pick-
up to inside track and the message “SLED IN” is displayed
on the liquid crystal element, or press the [
on the liquid crystal element, or press the [
M L
TUNE
+] button to outside track and the message “SLED OUT” is
displayed on the liquid crystal element.
displayed on the liquid crystal element.
5. Press the [
u
] button, “LD ON” or “LD OFF” is displayed on
the liquid crystal element. Each time [
u
] button is pressed,
laser diode on/off is changed over.
Releasing method:
Press the [
Press the [
?
/
1
] button to turn off the system.
CD SERVO TEST MODE
This mode can check the servo system operations of the optical
pick-up system (= optical unit + BD96U board).
This mode can check the servo system operations of the optical
pick-up system (= optical unit + BD96U board).
Note 1: Do not enter the [CD SERVO TEST MODE] while any other test
mode is in progress.
Note 2: Do not enter any other test mode while the [CD SERVO TEST
MODE] is in progress.
Note 3: In RAM Read, “SBADrough”, “SBBTrough”, “DT-GI rough”,
“SBAD fi ne”, “SBBT fi ne”, “DT-GI fi ne”, “DSPcomcnt”, and
“DECcomcnt” are displayed but are not used in the service.
“DECcomcnt” are displayed but are not used in the service.
How to Enter the CD Servo Test Mode
Procedure:
1. Press the [
Procedure:
1. Press the [
?/1
] button to turn the power on.
2. Press the [FUNCTION] button to select CD function.
3. Press three buttons of [
3. Press three buttons of [
x
], and [
V
–] simultaneously.
4. It enters the CD servo test mode and displays “bdt S CURVE”.
How to Exit from the CD Servo Test Mode
Procedure:
1. To release this mode, press the [
Procedure:
1. To release this mode, press the [
?/1
] button.
Key Operation:
[ +
[ +
v
], [
V
–]:
Use these keys to move between the seven modes contained in the
CD Servo Test Mode, that are the S-Curve Mode, the RAM Read
Mode, the RAM Write Mode, the Command Out Mode, the Error
Rate Mode the LOG Initialize Mode and the LOG Read Mode as
described below. Also, use these keys to move between the menus
within the respective seven modes. When [ +
CD Servo Test Mode, that are the S-Curve Mode, the RAM Read
Mode, the RAM Write Mode, the Command Out Mode, the Error
Rate Mode the LOG Initialize Mode and the LOG Read Mode as
described below. Also, use these keys to move between the menus
within the respective seven modes. When [ +
v
] is pressed, the
screen advances to the next menu or to the next mode. When [
V
–] is pressed, the screen returns back to the previous menu or
to the previous mode. Use these keys also to increase or decrease
the numeric value when changing the numeric value. Pressing [
+
the numeric value when changing the numeric value. Pressing [
+
v
] increases the value and pressing [
V
–] decreases the value.
[ENTER], [
x
]:
Use these keys to move between the different layers of the hier-
archy of the CD Servo Test Mode shown below. Press [ENTER]
to move down to the lower layer, and press [
archy of the CD Servo Test Mode shown below. Press [ENTER]
to move down to the lower layer, and press [
x
] to move up to the
higher layer.
[
M L TUNE +], [l m TUNE –]:
Use these keys to move the cursor to the right digit or to the left
digit in the six-digit number, when changing the numeric value.
Press [
digit in the six-digit number, when changing the numeric value.
Press [
M L TUNE +] to move the cursor to the right, and
press [
l m TUNE –] to return the cursor to the left.
[
u
]:
Use this key to execute Command Out in the Command Out Mode.
CD Servo Test Mode Tree:
S Curve Mode
LD ON
(bdt S CURVE)
(LD ON)
RAM Read Mode
Disc Type
value indication
(bdtRAM READ)
(DiscType)
(AL: 0000, RW: 0001)
Gain Index
value indication
(GainIndx)
(0001)
RFO GAIN
value indication
(RFO_GAIN)
(0008)
FEO GAIN
value indication
(FEO_GAIN)
(0005)
SBAD GAIN
value indication
(SBAD_GAIN)
(0008)
TEO GAIN
value indication
(TEO_GAIN)
(0008)
Disc Size
value indication
(DiscSize)
(0000: Non disc, 0001: 8cm,
0002:
12cm)
Op ABRAKE Error value indication
(OpAbrkErr)
(0000)
SBBT Data
value indication
(SBBT Data)
(0053)
TE Peak
value indication
(TE
P-P)
(0097)
FEOOCD
value indication
(FEOOCD)
(00C0)
The following items are not used (Note 3)
RAM Write Mode
SPG Mask
value edit
(bdtRAM WRITE)
(00 SPG_Mask) (Non mask:00, Mask:01)
Fix RF Gain
value edit
(00 FixRFgain)
(Non Fix:00, AL Fix:01, RW Fix:02)
TMAX ON
value edit
(00 tmaxon)
Driver Mute OFF value edit
(00 d_muteoff)
(Normal:00, Forced OFF:01)
Command Out Mode
COMOUT6X
value edit
command out
(bdt COMOUT)
(COMOUT6X)
(000000)
(ok)
READ2X
value edit
command out
(READ2X)
(60)
(50)
REG READ
value edit
command out
(REG_READ)
(00)
(0000)
FEBC?
command out
(FEBC?)
(00)
FGADD?
command out
(FGADD?)
(FA)
TEBC?
command out
(TEBC?)
(02)
TGADD?
command out
(TGADD?)
(0D)
RFGC?
command out
(RFGC?)
(3F)
FEOF?
command out
(FEOF?)
(0000)
TEOF?
command out
(TEOF?)
(FFC0)
TEIOCD1?
command out
(TEIOCD1?)
(FEC0)
TEIOCD2?
command out
(TEIOCD2?)
(FEC0)
TEIOCD3?
command out
(TEIOCD3?)
(0080)
TEOOCD?
command out
(TEOOCD?)
(FB80)
FEOOCD?
command out
(FEOOCD?)
(00C0)
MONITOR
value edit
command out
(MONITOR)
(570A00)
(ok)
Error Rate Mode
Error rate indication
(bdt ERR RATE)
(0000000000)
LOG Read Mode
value indication
(bdtLOG READ)
(XX: YYYYYY: ZZZZ)
XX: LOG Number
YYYYYY: Communication LOG
ZZZZ: LOG Number
LOG Initialize Mode
Initializetion
Initialization execution
(bdtLOG INIT)
confirmation
(INIT done)
indication
(INIT
sure?)
Higher layer
Lower layer of menu hierarchy
HCD-MX700Ni/MX750Ni
19
CD ERROR CODE
The past errors of the CD mechanism (CDM) are displayed as the
CDM Errors, and those of the optical pick-up system (= optical
unit + BD96U board) are displayed as the BD Errors as shown
below.
Procedure:
1. Press the [
The past errors of the CD mechanism (CDM) are displayed as the
CDM Errors, and those of the optical pick-up system (= optical
unit + BD96U board) are displayed as the BD Errors as shown
below.
Procedure:
1. Press the [
?/1
] button to turn the power on.
2. Press the [FUNCTION] button to select CD function.
3. Press three buttons of [OPTIONS] and [
3. Press three buttons of [OPTIONS] and [
u
] simultaneously.
4. BD and CDM error counts are displayed on the fl uoresent in-
dicator tube as shown below.
Em**Ed** X
Mode-in
count
BD error count
CDM error count
5. Press the [ +
v
] button.
6. Then, the CDM error code is displayed as “M0xxxxxxxx” (x
means hexadecimal number) on the liquid crystal element as
shown below.
shown below.
7. Every pressing of the [
M L TUNE +] button in this mode
increments the number after “M” starting from “M0” up to
“M9”, and then returns to “M0”. Every pressing of the [
“M9”, and then returns to “M0”. Every pressing of the [
l
m TUNE –] button in this mode decrements the number after
“M”. The smaller the error code number is, the newer the error
content is.
content is.
Press the [
V
–] button to return to the previous display.
8. When the [ +
v
] button is pressed then, the BD error code
is displayed as “D0xxxxxxxx” (x means hexadecimal number)
on the fl uoresent indicator tube as shown below. In the same
way as the CDM error code, use of the [
on the fl uoresent indicator tube as shown below. In the same
way as the CDM error code, use of the [
M L TUNE +]
and the [
l m TUNE –] buttons in this mode enables trac-
ing of the error history.
Press the [
V
–] button to return to the previous display.
Releasing method:
Press the [
Press the [
?
/
1
] button to turn off the system.
Contents of “CDM Errors”
Error display example
Error display example
M 0 FF 11 42 00
1 2 3 4 5
1 It indicates the error history number
0 to 9: The error code number 0 indicates the newest error.
2 It indicates whether the CDM error occurs in the normal opera-
tions or during the initialization operation.
FF
FF
: The error has occurred in the normal opera-
tions.
Other than FF : The error has occurred during the initialization
operation.
3 It indicates the processing during which the trouble has oc-
curred.
01: The disc EJECT processing is in progress.
02: The disc INSERTION-WAITING processing is in prog-
01: The disc EJECT processing is in progress.
02: The disc INSERTION-WAITING processing is in prog-
ress.
03: Processing of the disc INSERTION-REQUEST for the up-
per CD tray is in progress.
04: Processing of the disc EJECTION-REQUEST for the up-
per CD tray is in progress.
05: The disc pulling-in operation is in progress.
06: The disc chucking processing is in progress.
07: The disc re-chucking processing is in progress.
06: The disc chucking processing is in progress.
07: The disc re-chucking processing is in progress.
08: The disc chucking-release completion operation is in prog-
ress.
4 It indicates the operation during which the trouble has oc-
curred.
00
00
: Waiting for the operation.
10 to 13 : The disc EJECT operation is in progress.
20
20
: The disc pulling-in operation is in progress.
30
: The disc chucking-release operation is in progress.
40 to 43 : The disc EJECT operation due to error is in prog-
ress.
5 Reserve
00:
Fix
Contents of “BD Errors”
Error display example
Error display example
D 0 02 09 01 01
1 2 3 4 5
1 It indicates the error history number
0 to 9: The error code number 0 indicates the newest error.
2 It indicates the error content
01: The focus servo cannot lock-in.
02: GFS is no good (NG).
03: The startup time exceeds the specifi ed period of time (time
02: GFS is no good (NG).
03: The startup time exceeds the specifi ed period of time (time
over)
04: The focus servo is unlocked continuously.
05: Q code cannot be obtained within the specifi ed period of
05: Q code cannot be obtained within the specifi ed period of
time.
06: The tracking servo cannot lock-in.
07: Blank disc
07: Blank disc
3 It indicates the on-going processing of optical pick-up system
(= optical unit + BD96/BD96U board) when the trouble has
occurred.
01: The CD SHIP mode processing is in progress.
02: The POWER OFF processing is in progress.
03: The INITIALIZE processing is in progress.
04: The optical pick-up system (= optical unit + BD96U) is in
occurred.
01: The CD SHIP mode processing is in progress.
02: The POWER OFF processing is in progress.
03: The INITIALIZE processing is in progress.
04: The optical pick-up system (= optical unit + BD96U) is in
the stop state.
05: The STOP operation is in progress.
06: The startup processing is in progress.
07: The TOC read-in processing is in progress.
08: The SEARCH operation is in progress.
09: The PLAY operation is in progress.
0A: The PAUSE operation is in progress.
0B: The PLAY – MANUAL SEARCH operation is in prog-
06: The startup processing is in progress.
07: The TOC read-in processing is in progress.
08: The SEARCH operation is in progress.
09: The PLAY operation is in progress.
0A: The PAUSE operation is in progress.
0B: The PLAY – MANUAL SEARCH operation is in prog-
ress.
0C: The PAUSE – MANUAL SEARCH operation is in prog-
ress.
4 It indicates the disc speed when the trouble has occurred.
It indicates the step number of each processing specifi ed by
3.
Because the numbers of steps are different in each processing,
this number is different in each processing.
this number is different in each processing.
5 It indicates the disc speed when the trouble has occurred.
01: 1x (normal)
HCD-MX700Ni/MX750Ni
20
SECTION 4
ELECTRICAL CHECK
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
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 signals.
4. Confi rm “TUNED” is lit on the display for A, B and C signals.
When the selected station signal is received in good condition,
“TUNED” is displayed.
“TUNED” is displayed.
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