Sony CMT-SPZ55 / HCD-SPZ55 Service Manual ▷ View online
HCD-SPZ55
9
3-7. AMP/SP/POWER BOARD
3-8. TUNER
(FM/AM)
AMP board
clamp filter
POWER board
four screws
(B3)
connector
(CN1)
connector
(CN31)
two screws
(B3)
SP board
two screws
(BVTP
3
× 8)
two connectors
(CN850,
CN870)
tuner
(FM/AM)
flexible flat cable (9 core)
two screws
(BVTP
2.6
× 8)
HCD-SPZ55
10
SECTION 4
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 [PLAY MODE/TUNING MODE],
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 fl uorescent indicator tube becomes blank momentarily,
then becomes standby states.
COMMON TEST MODE
This mode is used to check operations of Amplifi er.
Procedure:
1. Press the [
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 fl uorescent 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 fl uorescent indicator tube. Turn the [VOL-
UME] knob clockwise, “VOL MAX” is displayed on the fl uo-
rescent indicator tube.
UME] knob clockwise, “VOL MAX” is displayed on the fl uo-
rescent indicator tube.
6. To release this mode, press the [
I/1
] button.
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 [
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 fl uorescent indica-
tor tube.
destination are displayed alternately on the fl uorescent indica-
tor tube.
5. Press the [DISPLAY] button again MC version, display on the
fl uorescent indicator tube.
6. When [FUNCTION] button is pressed while the MC version
is displayed, year, month and day of the software creation dis-
play. When [FUNCTION] button is pressed again, the display
returns to the MC version display.
play. 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 acti-
vated.
8. In the key check mode, the fl uorescent 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
10. “V” value increases 1, 2, 3 ... if turn the [VOLUME] knob
clockwise, or it decreases 0, 9, 8 ... if turn the knob counter-
clockwise
clockwise
“J” value increases like 1, 2, 3 ... if turn the jog knob clock-
wise, or it decreases like 0, 9, 8 ... if turn the knob counter-
clockwise.
clockwise.
11. To release this mode, press three keys 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 [
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
3. Press two buttons of [PLAY MODE/TUNING MODE] and
[DISC 1] simultaneously.
4. After the “STANDBY” display blinks, “LOCK” is displayed
on the fl uorescent 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 simul-
taneously.
Procedure:
1. Press the [
taneously.
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]
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 fl uorescent 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:
1. Press the [
in 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 [x] and [Z] for 5 seconds.
4. The message “LOCKED” is displayed on the fl uorescent in-
3. Press two buttons of [x] and [Z] for 5 seconds.
4. The message “LOCKED” is displayed on the fl uorescent in-
dicator tube and the disc slot is locked. (Even if pressing the
[Z] button, the message “LOCKED” is displayed on the fl uo-
rescent indicator tube and the disc table is locked)
[Z] button, the message “LOCKED” is displayed on the fl uo-
rescent 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 fl uorescent
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:
1. Press the [
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 fl uorescent
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.
HCD-SPZ55
11
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 [
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],
3. Press three buttons of [PLAY MODE/TUNING MODE],
[DSGX] and [DISC 1] simultaneously, the message “SER-
VICE IN” is displayed on the fl uorescent indicator tube.
VICE IN” is displayed on the fl uorescent 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 fl uorescent indicator tube, or press the [l m] button
to inside track and the message “SLED IN” is displayed on the
fl uorescent indicator tube.
the fl uorescent indicator tube, or press the [l m] button
to inside track and the message “SLED IN” is displayed on the
fl uorescent 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.
OFF switch is performed.
6. To release this mode, press the [
I/1
] button.
TUNER STEP CHANGE-OVER
A step of AM tuning interval can be changed over between 9 kHz
or 10 kHz.
Procedure:
1. Press the [
or 10 kHz.
Procedure:
1. Press the [
I/1
] button to turn the power on.
2. Press the [TUNER/BAND] button to select “AM”.
3. Press the [
3. Press the [
I/1
] button again to turn the power off.
4. Press two buttons of [M L] and [
I/1
] simultaneously.
5. The message “STEP 9kHz” or “STEP 10kHz” is displayed on
the fl uorescent indicator tube and thus the tuning interval is
changed over.
changed over.
HCD-SPZ55
12
Screw
position
L-CH
peak
within
1dB
Output
level
L-CH
peak
R-CH
peak
within
1dB
Screw
position
R-CH
peak
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 parts
demagnetizer.
2. Do not use a magnetized screwdriver for the adjustments.
3. After the adjustments, apply suitable locking compound to the parts
adjust.
TEST TAPE
Tape
Signal
Used for
P-4-A063
6.3 kHz – 10 dB
Azimuth Adjustment
RECORD/PLAYBACK HEAD AZIMUTH ADJUSTMENT
Note: Remove the mechanical deck before the adjust. (Refer to Section
3. DISASSEMBLY (See page 7))
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.
match within 1dB of peak.
3. Mode: Playback
4. After the adjustments, apply suitable locking compound to the pats
adjusted.
SECTION 5
MECHANICAL ADJUSTMENTS
DECK SECTION
0 dB = 0.775
μV
SECTION 6
ELECTRICAL 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.)
3. Do not use a magnetized screwdriver for the adjustments.
4. After the adjustments, appiy suitable locking compound to the parts
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.
supply voltage unless otherwise noted.
TORQUE MEASUREMENT
Mode
Torque Meter
Meter Reading
FWD
CQ-102C
2.9 – 7.4 mN·m
(30 – 75 g·cm)
(0.42 – 1.04 oz·inch)
FWD
Back Tension
CQ-102C
0.14 – 0.59 mN·m
(1.5 – 6.0 g·cm)
(0.021 – 0.083 oz·inch)
FF/REW
CQ-201B
more· than 5.4 mN·m
(more than 55 g·cm)
(more than 0.76 oz·inch)
TAPE TENSION MEASUREMENT
Mode
Torque 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)
set
test tape
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)
Click on the first or last page to see other CMT-SPZ55 / HCD-SPZ55 service manuals if exist.