Sony HCD-BX77DBI Service Manual ▷ View online
HCD-BX77DBi
9
2-10. MAIN BOARD
2-11. DAB BOARD, MODULE (DAB TUNER)
4
connector
(CN316)
3
flexible flat cable (11 core)
(CN326)
2
flexible flat cable (21 core)
(CN305)
1
flexible flat cable (5P)
(CN311)
5
connector
(CN904)
6
two screws
(BVTT3
u 6)
7
MAIN board
1
flexible flat cable
(DAB board: CN801/MAIN board: CN326)
3
two screws
(BVTP3
u 8)
5
DAB board
8
module (DAB tuner)
6
Remove two solders.
7
connector pin 2P
2
DAB cable connector
4
HCD-BX77DBi
10
2-12. LOADING MECHANISM BLOCK
2-13. BASE UNIT
4
holder (CD)
5
three screws
(BV3)
0
loading mechanism block
6
1
flexible flat cable (21 core)
(CN305)
2
flexible flat cable (5 core)
(CN311)
8
flexible flat cable (5 core)
(CN001)
7
flexible flat cable (21 core)
(CN201)
3
two screws
(BVTP2.6)
9
door CD
4
insulator
4
insulator
5
base unit
4
insulator
4
insulator
2
two cone springs
1
two floating screws (PTPWH M2.6)
1
two floating screws
(PTPWH
M2.6)
1
floating screw (PTPWH M2.6)
3
loading (BK) assy
– Bottom view –
2
two cone springs
HCD-BX77DBi
11
2-14. BELT
2-15. OPTICAL PICK-UP BLOCK (KSM-213DCP)
3RVLWLRQRIEHOW
5
belt
3
claw
3
claw
4
tray (AU)
2
belt
1
Slide the boss in the
direction of the arrow.
Note 1: When disconnecting the wire (fl at type) (16 core) of optical pick-up block, solder the short-land.
1
Remove four solders.
3
flexible flat cable (16 core)
(optical
pick-up)
4
CD board
5
optical pick-up block
(KSM-213DCP)
2
Solder the short-land.
Note 2: When assembling the optical pick-up block,
remove the solder of short-land after
connecting the wire (flat type) (16 core).
HCD-BX77DBi
12
SECTION 3
TEST MODE
COLD RESET
The cold reset clears all data including preset data stored in the
RAM to initial conditions. Execute this mode when returning the
set to the customer.
Procedure:
1. Press three buttons of [
The cold reset clears all data including preset data stored in the
RAM to initial conditions. Execute this mode when returning the
set to the customer.
Procedure:
1. Press three buttons of [
x
/CANCEL], [VOL +] and [
?/1
] si-
multaneously.
2. The system is reset and becomes standby states.
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 three buttons of [TUNER/BAND], [
x
/CANCEL] and
[ENTER] simultaneously.
3. When the COMMON test mode is activated, “AUDIO IN” is
displayed on the liquid crystal display and “
cPLAY SLEEP”
blink on the fl uorescent indicator tube.
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. Press the [VOL –] button, “VOLUME MIN” is displayed
on the fl uorescent indicator tube. Press the [VOL +] button,
“VOLUME MAX” is displayed on the fl uorescent indicator
tube.
“VOLUME MAX” is displayed on the fl uorescent indicator
tube.
6. To release this mode, press the [
?/1
] button.
PANEL TEST MODE
This mode is used to check the liquid crystal display, LED, model,
destination, software version and key.
Procedure:
1. Press the [
This mode is used to check the liquid crystal display, LED, model,
destination, software version and key.
Procedure:
1. Press the [
?/1
] button to turn the power on.
2. Press three buttons of [TUNER/BAND], [DSGX] and [EN-
TER] simultaneously.
3. All segments on the fl uorescent indicator tube, [STANDBY]
LED light up.
4. Press the [ENTER] button, the model and destination are alter-
nately displayed on the fl uorescent indicator tube.
5. Press the [ENTER] button again, MC version is displayed on
the fl uorescent indicator tube.
6. Each time [ENTER] button is pressed, the display changes
starting from MC version, GC version, CLA version, CD ver-
sion, CDD version, CDMA version, CDMB version, BDA ver-
sion, BDB version, ST version, TA version and TM version
this order, and returns to the MC version display.
sion, CDD version, CDMA version, CDMB version, BDA ver-
sion, BDB version, ST version, TA version and TM version
this order, and returns to the MC version display.
7. When [
x
/CANCEL] button is pressed while the MC version
is displayed, year, month and day of the software creation is
displayed. When [
displayed. When [
x
/CANCEL] button is pressed again, the
display returns to the MC version display.
8. Press the [DSGX] button, the key test mode is activated and
“K 0” is displayed on the fl uorescent indicator tube.
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 “K19”.
10. Press the [VOL +] button, the key AD monitor mode is acti-
vated and “FFFFFF” is displayed on the fl uorescent indicator
tube.
tube.
11. Each time a button is pressed, the AD of each button is dis-
played on the fl uorescent indicator tube.
12. To release this mode, press three buttons in the same manner as
step 2, or disconnect 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 three buttons of [DSGX], [VOL +] and [
3. Press three buttons of [DSGX], [VOL +] and [
A
] simultane-
ously.
4. After the “STANDBY” display blinks, “LOCK” is displayed
on the fl uorescent indicator tube, the ship mode is set.
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
/CANCEL], [VOL +] and [
A
] simul-
taneously.
3. After the “STANDBY” display blinks, “LOCK” is displayed
on the fl uorescent indicator tube the ship mode is set and the
system is reset.
system is reset.
ANTITHEFT 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 set on.
2. Press the [
A
] button to open the disc tray and set the CD disc.
3. Press the [
A
] button to close the disc tray.
4. Press the [FUNCTION] button to select “CD”.
5. Press two buttons of [
5. Press two buttons of [
x
/CANCEL] and [
A
] for 5 seconds.
6. The message “LOCKED” is displayed on the fl uorescent indi-
cator tube and the disc tray is locked. (Even if pressing the Z
button, the message “LOCKED” is displayed on the fl uores-
cent indicator tube and the disc tray is locked)
button, the message “LOCKED” is displayed on the fl uores-
cent indicator tube and the disc tray is locked)
7. To release from this mode, press two buttons of [
x
/CANCEL]
and [
A
] for 5 seconds.
8. The message “UNLOCKED” is displayed on the fl uorescent
indicator tube 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 [
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 [
x
/CANCEL] and [
?/1
] simultaneously.
5. The message “CD POWER”, “ON” or “CD POWER”,
“OFF”is displayed on the fl uorescent indicator tube, and CD
power on/off is changed over in the tuner mode.
power on/off is changed over in the tuner mode.
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