Sony HCD-VX99 / MHC-VX99 Service Manual ▷ View online
3
This appliance is classified as a CLASS 1 LASER product. The
CLASS 1 LASER PRODUCT MARKING is located on the rear
exterior.
CLASS 1 LASER PRODUCT MARKING is located on the rear
exterior.
Laser component in this product is capable
of emitting radiation exceeding the limit for
Class 1.
of emitting radiation exceeding the limit for
Class 1.
CAUTION
Use of controls or adjustments or performance of procedures
other than those specified herein may result in hazardous radiation
exposure.
Use of controls or adjustments or performance of procedures
other than those specified herein may result in hazardous radiation
exposure.
Notes on chip component replacement
• Never reuse a disconnected chip component.
• Notice that the minus side of a tantalum capacitor may be
• Never reuse a disconnected chip component.
• Notice that the minus side of a tantalum capacitor may be
damaged by heat.
Flexible Circuit Board Repairing
• Keep the temperature of soldering iron around 270˚C
• Keep the temperature of soldering iron around 270˚C
during repairing.
• Do not touch the soldering iron on the same conductor of the
circuit board (within 3 times).
• Be careful not to apply force on the conductor when soldering
or unsoldering.
NOTES ON HANDLING THE OPTICAL PICK-UP
BLOCK OR BASE UNIT
BLOCK OR BASE UNIT
The laser diode in the optical pick-up block may suffer electrostatic
break-down because of the potential difference generated by the
charged electrostatic load, etc. on clothing and the human body.
During repair, pay attention to electrostatic break-down and also
use the procedure in the printed matter which is included in the
repair parts.
The flexible board is easily damaged and should be handled with
care.
break-down because of the potential difference generated by the
charged electrostatic load, etc. on clothing and the human body.
During repair, pay attention to electrostatic break-down and also
use the procedure in the printed matter which is included in the
repair parts.
The flexible board is easily damaged and should be handled with
care.
NOTES ON LASER DIODE EMISSION CHECK
The laser beam on this model is concentrated so as to be focused on
the disc reflective surface by the objective lens in the optical pick-
up block. Therefore, when checking the laser diode emission,
observe from more than 30 cm away from the objective lens.
the disc reflective surface by the objective lens in the optical pick-
up block. Therefore, when checking the laser diode emission,
observe from more than 30 cm away from the objective lens.
SAFETY-RELATED COMPONENT WARNING!!
COMPONENTS IDENTIFIED BY MARK 0 OR DOTTED LINE WITH
MARK 0 ON THE SCHEMATIC DIAGRAMS AND IN THE PARTS
LIST ARE CRITICAL TO SAFE OPERATION. REPLACE THESE
COMPONENTS WITH SONY PARTS WHOSE PART NUMBERS
APPEAR AS SHOWN IN THIS MANUAL OR IN SUPPLEMENTS
PUBLISHED BY SONY.
MARK 0 ON THE SCHEMATIC DIAGRAMS AND IN THE PARTS
LIST ARE CRITICAL TO SAFE OPERATION. REPLACE THESE
COMPONENTS WITH SONY PARTS WHOSE PART NUMBERS
APPEAR AS SHOWN IN THIS MANUAL OR IN SUPPLEMENTS
PUBLISHED BY SONY.
4
SECTION 1
SERVICE NOTE
Screw hole
Attach the panel board with
six screws (+BVTP 2.6
six screws (+BVTP 2.6
× 8 )
after the board is removed once.
Do not tighten the screws excessively.
Do not tighten the screws excessively.
1
Cut the eleven melted-connection points with a cutting plier.
Note for installing the panel board
2
Panel board
Hot melt
SELF-DIAGNOSIS
This model has the self-diagnosis function for the VIDEO and AUDIO decoder sections.
Connecting to the LED between TP522 and TP523 on the VIDEO BOARD.
Immediately after the power on, the self-diagnosis function searches each operation of IC’s around the mechanism control microcomputer
(IC701). and TP5
The results can be checked by LED of the VIDEO board.
This model has the self-diagnosis function for the VIDEO and AUDIO decoder sections.
Connecting to the LED between TP522 and TP523 on the VIDEO BOARD.
Immediately after the power on, the self-diagnosis function searches each operation of IC’s around the mechanism control microcomputer
(IC701). and TP5
The results can be checked by LED of the VIDEO board.
Oscilloscope (Waveform)
Symptom
No error
MPEG decoder (IC505)
error
error
MPEG decoder (IC505)
or
DRAM (IC507) error
or
DRAM (IC507) error
[VIDEO BOARD] (SIDE A)
H
L
Light
2 time blinking
H
L
H
L
3 time blinking
TP523 TP522
LED
IC505
100
91
33
64
90
65
1
32
5
SECTION 2
GENERAL
1
DISC SKIP EX-CHANGE button
2
DISC 1 button and indicator
3
DISC 2 button and indicator
4
DISC 3 button and indicator
5
Z OPEN/CLOSE button
6
PREV button
7
NEXT button
8
RETURN button
9
EDIT, TUNER MOMERY button
q;
PLAY MODE, STEREO/MONO button
qa
REPEAT, DOLBY NR button
qs
DIRECTION button
qd
VOLUME knob
qf
PHONES jack
qg
ENTER button
qh
REC PAUSE/START button and indicator
qj
CD SYNC HI-DUB button
qk
KARAOKE PON/MPX button
ql
MIC1, MIC2 jack
w;
MIC LEVEL knob
wa
ECHO LEVEL knob
ws
EQ EDIT button
wd
SPECTRUM button
wf
DISPLAY button
wg
?/1 button and indicator
wh
Function indicator
wj
TUNER/BAND button
wk
CINEMA SPACE button
wl
MD (VIDEO) button
e;
gG/SELECT button
ea
> + button
es
X button
ed
– . button
ef
x button
eg
V-GROOVE button and indicator
eh
PICTURE EFFECT button
ej
CURSOL button and indicator
ek
GROOVE button
el
TAPE A/B button
r;
CD button
1
2 3 4
5 6
7
qd
qf
qg
qh
el
ed
r;
ef
wh
wj
wk
ea
8
qa
qs
9
q;
es
ej
qk qj
ws
wd
wf
wg
w;
ql
wa
ek
eg
eh
wl
e;
6
This section is e
xtracted from
instr
uction manual.
7
Inserting two size AA (R6)
batteries into the remote
batteries into the remote
Using the remote
You can use the shaded buttons shown below
to operate a Sony TV.
to operate a Sony TV.
To
Press
Turn the TV on or off
TV ?/1
Switch the TV's
TV/VIDEO.
video input
Change the TV
TV CH +/–.
channels
Adjusts the volume
TV VOL +/–.
of the TV speaker(s)
Tip
With normal use, the batteries should last for about
six months. When the remote no longer operates
the system, replace both batteries with new ones.
six months. When the remote no longer operates
the system, replace both batteries with new ones.
Note
If you do not use the remote for a long period of
time, remove the batteries to avoid possible damage
from battery leakage.
time, remove the batteries to avoid possible damage
from battery leakage.
When carrying this system
Do the following to protect the CD
mechanism.
mechanism.
1
Make sure that all discs are removed from
the unit.
the unit.
2
Hold down CD and then press ?/1 so that
“LOCK” appears in the display.
“LOCK” appears in the display.
3
Unplug the AC power cord.
1
Press CLOCK/TIMER SET.
The hour indication flashes.
2
Press . or > repeatedly to set
the hour.
the hour.
Step 2: Setting the
time
time
You must set the time before using the timer
functions.
functions.
continued
N
X
x
x
M
m
>
.
nN
O
v
V
b
B
X
1
3,5
2,4
TV ?/1
TV VOL +/
TV CH +/
TV/VIDEO
8
1
Press TUNER/BAND repeatedly
until the band you want appears in
the display.
until the band you want appears in
the display.
Every time you press this button, the
band changes as follows:
FM y AM
band changes as follows:
FM y AM
Step 3: Presetting
radio stations
radio stations
You can preset 20 stations for FM and 10
stations for AM.
stations for AM.
?/1
(Power)
(Power)
3
Press ENTER.
The minute indication flashes.
4
Press . or > repeatedly to set
the minute.
the minute.
5
Press ENTER.
The clock starts working.
Tip
If you’ve made a mistake, start over from step 1.
To change the time
The previous explanation shows you how to set the
time while the power is off. To change the time
while the power is on, do the following:
1
time while the power is off. To change the time
while the power is on, do the following:
1
Press CLOCK/TIMER SET.
2
Press . or > repeatedly to select
SET CLOCK.
SET CLOCK.
3
Press ENTER.
4
Perform steps 2 through 5 above.
Note
The clock settings are canceled when you disconnect
the power cord or if a power failure occurs.
the power cord or if a power failure occurs.
Step 2: Setting the time
(continued)
(continued)
SHUTTLE
4
2
1
3
