Sony CMT-G2BNIP / CMT-G2NIP / HCD-G2BNIP / HCD-G2NIP Service Manual ▷ View online
HCD-G2BNiP/G2NiP
21
2-15. BASE UNIT (BU-K6BD94DC)
2-16. OPTICAL PICK-UP BLOCK (KSM-213DCP)
Note 1: When disconnection the wire (fl at type) (16 core) of OP base assy, solder the short-land.
4
insulator
4
insulator
5
base unit
(BU-K6BD94DC)
4
insulator
4
insulator
1
two floating screws
(PTPWHM2.6)
1
two floating screws
(PTPWHM2.6)
1
floating screw
(PTPWHM2.6)
3
loading (BK) assy
– CD mechanism bottom view –
2
two cone springs
Note: When you install the cone
spring, adjust sharp side to
the floating screw side.
2
two cone springs
Note: When you install the cone
spring, adjust sharp side to
the floating screw side.
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).
1
Remove four solders.
3
wire (flat type) (16 core)
(OP base assy)
5
optical pick-up block
(KSM-213DCP)
4
BD94DC board
HCD-G2BNiP/G2NiP
22
2-17. HOLDER (CD) BLOCK
2-18. DCDC BOARD
1
Lift up the lead pin.
3
Remove the coating clip from
the clamp filter (ferrite core).
2
connector
(CN301)
4
three screws
(BVTT4
u 8)
5
holder (CD) block
:LUHVHWWLQJ
clamp filter
(ferrite core)
(ferrite core)
holder (CD)
Note: Confirm the wire does not
hit the edge of holder (CD).
lead pin
DCDC board
rear side
coating clip
coating clip
clamp filter
(ferrite core)
(ferrite core)
clamp filter
(ferrite core)
(ferrite core)
lead pin
AMP board
front side
tape
1
Lift up the lead pin.
6
Lift up the lead pin.
lead pin
lead pin
5
clamp filter (ferrite core)
clamp filter (ferrite core)
7
DCDC board
DCDC board
2
connector
(CN952)
3
four screws
(BV3)
4
:LUHVHWWLQJ
rear side
HCD-G2BNiP/G2NiP
23
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 unit 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 unit to the customer.
Procedure:
1. In the standby status, press the [
?
/
1
] button to turn the power
on.
2. Press two buttons of [x] and [
?
/
1
] simultaneously for 2 sec-
onds.
3. When “RESET” appears, the unit enters standby status.
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 OFF” is displayed on the
fl uorescent indicator tube and the automatic standby OFF
mode is set.
mode is set.
4. To turn this function on, press the [
?
/
1
] button again for 2 sec-
onds.
The message “AUTO STANDBY ON” is displayed on the
fl uorescent indicator tube and the automatic standby ON mode
is set.
fl uorescent indicator tube and the automatic standby ON mode
is set.
AUTO STANDBY TEST MODE
This mode can confi rm the automatic standby function operates
normally.
Procedure:
1. Press the [
This mode can confi rm the automatic standby function operates
normally.
Procedure:
1. Press the [
?
/
1
] button to turn the power on.
2. Turn the [FUNCTION] knob to select excluding “TUNER”.
3. Turn the [VOLUME] knob within 5 seconds after pressing the
3. Turn the [VOLUME] knob within 5 seconds after pressing the
[
l m
TUNE –] and [
?
/
1
] buttons simultaneously.
4. The message “STATUS XXX” or “Sig*** XXX” is displayed
on the fl uorescent indicator tube.
5. When the displayed value decreases and the value becomes
“0”, the unit becomes standby status. The value doesn’t de-
crease while the audio is reproducing.
crease while the audio is reproducing.
Releasing method:
Turn the [VOLUME] knob within 5 seconds after pressing the
[
Turn the [VOLUME] knob within 5 seconds after pressing the
[
l m
TUNE –] and [
?
/
1
] buttons simultaneously.
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 [
l m
TUNE –] and [
Z
] simultane-
ously for 5 seconds.
3. When the COMMON test mode is activated, “AUDIO IN1”
is displayed on the fl uorescent indicator tube and “SLEEP c”
blink on the fl uorescent indicator tube.
blink on the fl uorescent indicator tube.
4. Each time the [TONE BASS]/[TONE TREBLE] knobs are
turned, or the [EQ] button is pressed on the remote command-
er, the display changes starting “EQ MAX”, “EQ MIN” and
“EQ FLAT” this order.
er, the display changes starting “EQ MAX”, “EQ MIN” and
“EQ FLAT” this order.
5. Turn the [VOLUME] knob counterclockwise, “VOLUME
MIN” is displayed on the fl uorescent indicator tube. Turn the
[VOLUME] knob clockwise, “VOLUME MAX” is displayed
on the fl uorescent indicator tube.
[VOLUME] knob clockwise, “VOLUME MAX” is displayed
on the fl uorescent indicator tube.
Releasing method:
Press the [
Press the [
?
/
1
] button to turn off the system.
PANEL TEST MODE
This mode is used to check the fl uorescent indicator tube, LED,
model, destination, software version and key.
Procedure:
1. Press the [
This mode is used to check the fl uorescent indicator tube, LED,
model, destination, software version and key.
Procedure:
1. Press the [
?
/
1
] button to turn the power on.
2. Press two buttons of [
l m
TUNE –] and [
u
] simultane-
ously for 5 seconds.
3. All segments on the fl uorescent indicator tube, [STANDBY]
LED light up.
4. Press
the
[
l m
TUNE –] button, the model and destination
are displayed on the fl uorescent indicator tube.
5. Press
the
[
l m
TUNE –] button again, MC version is dis-
played on the fl uorescent indicator tube.
6. Each time [
l m
TUNE –] button is pressed, the display
changes starting from MCS version, GC version, USBL ver-
sion, NWA version, NWD version, NWM version, CD version,
CDD version, CDMA version, CDMB version, BDA version,
BDB version, ST version, TA version and TM version this or-
der, and returns to the MC version display.
sion, NWA version, NWD version, NWM version, CD version,
CDD version, CDMA version, CDMB version, BDA version,
BDB version, ST version, TA version and TM version this or-
der, 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 [
M
L
TUNE +] button, the key test mode is acti-
vated and “K 0 J0 V0” is displayed on the fl uorescent indicator
tube.
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 “K10” .
10. “J” value increases 0, 1, 2 ... if turn the [TONE BASS], [TONE
TREBLE] or [FUNCTION] knobs clockwise, or it decreases 9,
8, 7 ... if turn the knob counterclockwise.
8, 7 ... if turn the knob counterclockwise.
11. “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 [
Press two buttons of [
l m
TUNE –] and [
u
] simultaneously,
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. Turn the [FUNCTION] knob to select “CD”.
3. Press the [
3. Press the [
Z
] button for 5 seconds.
4. After blink “STANDBY”, “LOCK” is displayed, disconnect
the power cord.
CD SHIP MODE & COLD RESET
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 two buttons of [
M
L
TUNE +] and [
Z
] simultane-
ously for 5 seconds.
3. After blink “STANDBY”, “LOCK” is displayed, disconnect
the power cord.
HCD-G2BNiP/G2NiP
24
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.
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 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)
cent indicator tube 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 fl uorescent
indicator tube and the disc tray is unlocked.
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. Turn the [FUNCTION] knob to select “CD”.
3. Press two buttons of [
3. Press two buttons of [
M L
TUNE +] and [
u
] simultane-
ously for 5 seconds, the message “SERVICE MODE” is dis-
played on the fl uorescent indicator tube.
played on the fl uorescent indicator tube.
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 fl uorescent indicator tube, or press the [
the fl uorescent indicator tube, or press the [
M L
TUNE
+] button to outside track and the message “SLED OUT” is
displayed on the fl uorescent indicator tube.
displayed on the fl uorescent indicator tube.
5. Press the [
u
] button, “LD ON” or “LD OFF” is displayed
on the fl uorescent indicator tube. 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.
CHANGE-OVER THE AM TUNING INTERVAL
(G2BNiP: Australisn model)
The AM tuning interval can be changed over 9 kHz or 10 kHz.
Procedure:
1. Press the [
(G2BNiP: Australisn model)
The AM tuning interval can be changed over 9 kHz or 10 kHz.
Procedure:
1. Press the [
?/1
] button to turn the power on.
2. Turn the [FUNCTION] knob to select TUNER AM function.
3. Press the [
3. Press the [
?/1
] button again to turn the power off (standby).
4. After pressing the [DISPLAY] button on the remote com-
mander, while pressing the [
M L
TUNE +] 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.
FM TUNE LEVEL CHECK
signal
generator
unit
Procedure:
1. Turn on the unit.
2. Input the following signal from signal generator to FM antenna
1. Turn on the unit.
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.
SECTION 4
ELECTRICAL CHECK
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