Sony CMT-SPZ90DB / HCD-SPZ90DAB Service Manual ▷ View online
HCD-SPZ90DAB
9
6
connector
(CNP891)
(CNP891)
8
connector
(CN500)
(CN500)
7
1
three screws
(B3)
(B3)
5
three screws
(B3)
(B3)
2
screw
(B3)
(B3)
3
screw
(B3)
(B3)
4
chassis
9
DAB module assy
DAB board
3
AMP board
0
POWER board
2
four screws
(B3)
(B3)
6
connector
(CN1)
(CN1)
7
connector
(CN31)
(CN31)
8
two screws
(B3)
(B3)
5
SP board
4
two screws
(BVTP 3
(BVTP 3
×
8)
9
screws
(B3)
(B3)
1
two connectors
(CN850, CN870)
(CN850, CN870)
3-7. AMP/SP/POWER BOARDS
3-8. DAB MODULE ASSY
10
HCD-SPZ90DAB
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:
RAM to initial conditions. Execute this mode when returning the
set to the customer.
Procedure:
1. Press three buttons of [PLAY MODE/TUNING MODE], [DISPLAY]
and
I/
1
simultaneously.
2. The fluorescent indicator tube becomes blank momentarily,
then becomes standby states.
COMMON TEST MODE
This mode is used to check operations of Amplifier.
Procedure:
Procedure:
1. Press the
I/
1
button to turn the power on.
2. Press three buttons of [DSGX],
[DISC SKIP/EX-CHANGE] and
[DISPLAY] simultaneously.
3. When the COMMON test mode is activated, “SLEEP” and
“c PLAY” blink on the fluorescent indicator tube.
4. Each time [EQ] button is pressed, the display changes starting
“TONE MIN”, “TONE FLAT” and “TONE MAX” this order.
5. Turn the [VOLUME] knob counterclockwise, “VOL MIN” is
displayed on the fluorescent indicator tube. Turn the [VOLUME]
knob clockwise, “VOL MAX” is displayed on the fluorescent
indicator tube.
knob clockwise, “VOL MAX” is displayed on the fluorescent
indicator tube.
6. To release this mode, press the
I/
1
button.
PANEL TEST MODE
This mode is used to check the fluorescent indicator tube, LED,
model, destination, software version and key.
Procedure:
model, destination, software version and key.
Procedure:
1. Press the
I/
1
button to turn the power on.
2. Press three buttons of [PLAY MODE/TUNING MODE], [FUNCTION]
and [DISPLAY] simultaneously.
3. Fluorescent indicator tube is all turned on and each LED of
[DSGX] and [STANDBY] blink every 0.5 seconds.
4. When you want to enter the model, destination and version display
mode, press the [DISPLAY] button. The model and destination
are displayed alternately on the fluorescent indicator tube.
are displayed alternately on the fluorescent indicator tube.
5. Press the [DISPLAY] button again MC version, display on the
fluorescent indicator tube.
6. When [FUNCTION] button is pressed while the MC version is
displayed, year, month and day of the software creation display.
When [FUNCTION] button is pressed again, the display returns
to the MC version display.
When [FUNCTION] button is pressed again, the display returns
to the MC version display.
7. Press the [PUSH ENTER] button, the key check mode is
activated.
8. In the key check mode, the fluorescent indicator tube displays
“K 0 J0 V0”.
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 “K25”.
10. “V” value increases 1, 2, 3 ... if turn the [VOLUME] knob
clockwise, or it decreases 0, 9, 8 ... if turn the knob
counterclockwise
counterclockwise
11. To release this mode, press three keys in the same manner as
step 2, or disconnect the power cord.
SECTION 4
TEST MODE
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:
vibration. Use this mode when returning the set to the customer
after repair.
Procedure:
1. Press the
I/
1
button to turn the power on.
2. Press the [FUNCTION] button to select “CD”.
3. Press two buttons of [PLAY MODE/TUNING MODE] and [DISC
3. Press two buttons of [PLAY MODE/TUNING MODE] and [DISC
1] simultaneously.
4. After the “STANDBY” display blinks, “LOCK” is displayed
on the fluorescent indicator tube, and the ship mode is set.
CD SHIP MODE & MEMORY CLEAR
This mode is used to perform CD ship mode and cold reset
simultaneously.
Procedure:
simultaneously.
Procedure:
1. Press the
I/
1
button to turn the power on.
2. Press the [FUNCTION] button to select “CD”.
3. Press three buttons of [DSGX], [DISC SKIP/EX-CHANGE] and
3. Press three buttons of [DSGX], [DISC SKIP/EX-CHANGE] and
[DISC 1] simultaneously.
4. After the “STANDBY” display blinks, “LOCK” is displayed
on the fluorescent indicator tube, and the ship mode is set.
ANTITHEFT LOCK MODE
This mode is used to unable to take sample disc out of disc table in
the shop.
Procedure:
the shop.
Procedure:
1. Press the
I/
1
button to turn the power on.
2. Press the [FUNCTION] button to select “CD”.
3. Press two buttons of
3. Press two buttons of
x
and
Z
for 5 seconds.
4. The message “LOCKED” is displayed on the fluorescent
indicator tube and the disc slot is locked. (Even if pressing
the
the
Z
button, the message “LOCKED” is displayed on the
fluorescent indicator tube and the disc table is locked)
5. To release from this mode, press two buttons of
x
and
Z
for
5 seconds.
6. The message “UNLOCKED” is displayed on the fluorescent
indicator tube and the disc table 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:
of reception noise in the tuner mode.
Procedure:
1. Press the
I/
1
button to turn the power on.
2. Press the [FUNCTION] button to select “CD”.
3. Press the
3. Press the
I/
1
button again to turn the power off.
4. Press two buttons of
x
and
I/
1
simultaneously.
5. The message “CD POWER” is displayed on the fluorescent
indicator tube momentarily, then display changes “ON” or
“OFF”, and CD power on/off changed over in the tuner mode.
“OFF”, and CD power on/off changed over in the tuner mode.
11
HCD-SPZ90DAB
CD SERVICE MODE
This mode can run the CD sled motor freely. Use this mode, for
instance, when cleaning the optical pick-up.
Procedure:
instance, when cleaning the optical pick-up.
Procedure:
1. Press the
I/
1
button to turn the power on.
2. Press the [FUNCTION] button to select “CD”.
3. Press three buttons of [PLAY MODE/TUNING MODE], [DSGX]
3. Press three buttons of [PLAY MODE/TUNING MODE], [DSGX]
and [DISC 1] simultaneously, the message “SERVICE M” is
displayed on the fluorescent indicator tube.
displayed on the fluorescent indicator tube.
4. Press the
M L
button to move the optical pick-up to outside
track and the message “SLED OUT” is displayed on the
fluorescent indicator tube, or press the
fluorescent indicator tube, or press the
l m
button to
inside track and the message “SLED IN” is displayed on the
fluorescent indicator tube.
fluorescent indicator tube.
5. Press the
x
button, “LD OFF” is displayed and laser diode is
turned off. Each time
x
button is pressed, laser diode ON/
OFF switch is performed.
6. To release this mode, press the
I/
1
button.
12
HCD-SPZ90DAB
SECTION 6
ELECTRICAL ADJUSTMENTS
0 dB=0.775 V
DECK SECTION
1. Demagnetize the record/playback head with a head
demagnetizer.
2. Do not use a magnetized screwdriver for the adjustments.
3. After the adjustments, apply suitable locking compound to the
3. After the adjustments, apply suitable locking compound to the
parts adjust.
TEST TAPE
RECORD/PLAYBACK HEAD AZIMUTH ADJUSTMENT
Note:
Remove the mechanical deck before the adjust. (Refer to Section 3.
DISASSEMBLY (See page 6))
DISASSEMBLY (See page 6))
Procedure:
1. Mode: Playback
2. Turn the adjustment screw and check output peaks. If the peaks
do not match for L-CH and R-CH, turn the adjustment screw
so that outputs match within 1dB of peak.
so that outputs match within 1dB of peak.
3. Mode: Playback
4. After the adjustments, apply suitable locking compound to the
pats adjusted.
Tape
Signal
Used for
P-4-A063
6.3 kHz, –10 dB
Azimuth Adjustment
set
test tape
P-4-A063
(6.3 kHz,
P-4-A063
(6.3 kHz,
−
10 dB)
oscilloscope
V
H
waveform of oscilloscope
in phase 45
°
90
°
135
°
180
°
good
wrong
HP A-IN board
PHONES jack
(J982)
PHONES jack
(J982)
SECTION 5
MECHANICAL ADJUSTMENTS
PRECAUTION
1. Clean the following parts with a denatured-alcohol-moistened
swab :
record/playback head
pinch roller
erase head
rubber belts
capstan
idlers
2. Demagnetize the record/playback head with a head
demagnetizer. (Do not bring the head magnetizer close to the
erase head.)
erase head.)
3. Do not use a magnetized screwdriver for the adjustments.
4. After the adjustments, appiy suitable locking compound to
4. After the adjustments, appiy suitable locking compound to
the parts adjusted.
5. The adjustments should be performed with the rated power
supply voltage unless otherwise noted.
TORQUE MEASUREMENT
Mode
Torque Meter
Meter Reading
2.9 – 7.4 mN
⋅
m
FWD
CQ-102C
(30 – 75 g
⋅
cm)
(0.42 – 1.04 oz
⋅
inch)
FWD
0.14 – 0.59 mN
⋅
m
Back Tension
CQ-102C
(1.5 – 6.0 g
⋅
cm)
(0.021 – 0.083 oz
⋅
inch)
more than 5.4 mN
⋅
m
FF/REW
CQ-201B
(more than 55 g
⋅
cm)
(more than 0.76 oz
⋅
inch)
TAPE TENSION MEASUREMENT
Mode
Tension Meter
Meter Reading
FWD
CQ-403A
more than 90 g
(more than 3.17 oz)
set
HP A-IN
PHONES jack
(J982)
PHONES jack
(J982)
+
–
–
level meter
test tape
P-4-A063
(6.3 kHz,
P-4-A063
(6.3 kHz,
−
10 dB)
Screw
position
position
L-CH
peak
peak
within
1dB
1dB
Output
level
level
L-CH
peak
peak
R-CH
peak
peak
within
1dB
1dB
Screw
position
position
R-CH
peak
peak
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