Sony HCD-GS100 Service Manual ▷ View online
3
HCD-GS100
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.
COMPONENTS WITH SONY PARTS WHOSE PART NUMBERS
APPEAR AS SHOWN IN THIS MANUAL OR IN SUPPLEMENTS
PUBLISHED BY SONY.
Fig. A.
Using an AC voltmeter to check AC leakage.
1.5 k
Ω
0.15
µ
F
AC
voltmeter
(0.75 V)
voltmeter
(0.75 V)
To Exposed Metal
Parts on Set
Parts on Set
Earth Ground
SAFETY CHECK-OUT
After correcting the original service problem, perform the following
safety check before releasing the set to the customer:
Check the antenna terminals, metal trim, “metallized” knobs, screws,
and all other exposed metal parts for AC leakage.
Check leakage as described below.
safety check before releasing the set to the customer:
Check the antenna terminals, metal trim, “metallized” knobs, screws,
and all other exposed metal parts for AC leakage.
Check leakage as described below.
LEAKAGE TEST
The AC leakage from any exposed metal part to earth ground and
from all exposed metal parts to any exposed metal part having a
return to chassis, must not exceed 0.5 mA (500 microamperes.).
Leakage current can be measured by any one of three methods.
1. A commercial leakage tester, such as the Simpson 229 or RCA
from all exposed metal parts to any exposed metal part having a
return to chassis, must not exceed 0.5 mA (500 microamperes.).
Leakage current can be measured by any one of three methods.
1. A commercial leakage tester, such as the Simpson 229 or RCA
WT-540A. Follow the manufacturers’ instructions to use these
instruments.
instruments.
2. A battery-operated AC milliammeter. The Data Precision 245
digital multimeter is suitable for this job.
3. Measuring the voltage drop across a resistor by means of a VOM
or battery-operated AC voltmeter. The “limit” indication is 0.75
V, so analog meters must have an accurate low-voltage scale.
The Simpson 250 and Sanwa SH-63Trd are examples of a
passive VOM that is suitable. Nearly all battery operated digital
multimeters that have a 2 V AC range are suitable. (See Fig. A)
V, so analog meters must have an accurate low-voltage scale.
The Simpson 250 and Sanwa SH-63Trd are examples of a
passive VOM that is suitable. Nearly all battery operated digital
multimeters that have a 2 V AC range are suitable. (See Fig. A)
CAUTION
Use of controls or adjustments or performance of procedures
other than those specified herein may result in hazardous
radiation exposure.
other than those specified herein may result in hazardous
radiation exposure.
This appliance is classified as a CLASS 1 LASER product.
The CLASS 1 LASER PRODUCT MARKING is located on
the rear exterior.
The 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.
exceeding the limit for Class 1.
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.
LASER DIODE AND FOCUS SEARCH OPERATION
CHECK
CHECK
Carry out the “S curve check” in “CD section adjustment” and check
that the S curve waveforms is output three times.
that the S curve waveforms is output three times.
NOTES ON HANDLING THE OPTICAL PICK-UP
BLOCK OR BASE UNIT
BLOCK OR BASE UNIT
Notes on chip component replacement
• Never reuse a disconnected chip component.
• Notice that the minus side of a tantalum capacitor may be dam-
• Notice that the minus side of a tantalum capacitor may be dam-
aged by heat.
Flexible Circuit Board Repairing
• Keep the temperature of the 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.
4
HCD-GS100
SECTION 1
SERVICING NOTES
CD-TEXT TEST DISC
This unit is able to display the test data (character information)
written in the CD on its fluorescent indicator tube.
The CD-TEXT TEST DISC (TGCS-313: J-2501-126-A) is used
for checking the display.
To check, perform the following procedure.
written in the CD on its fluorescent indicator tube.
The CD-TEXT TEST DISC (TGCS-313: J-2501-126-A) is used
for checking the display.
To check, perform the following procedure.
Checking Method:
1. Press the
I/1
button to turn the power on, set the disc to the
disc table with the “test disc” label facing right, and chuck the
disc.
disc.
2. Press the
[CD]
button to set CD function, and press the
N
button to
playback the disc.
3. The following will be displayed on the liquid crystal display.
Display : 1KHZ/0DB/L R
4. Pressing the
[-- ]
or
[ +]
button, select the track. The text
data of each track will be displayed.
For details of the displayed contents for each track, refer to “Table
1: CD-TEXT TEST DISC TEXT Data Contents”.
For details of the displayed contents for each track, refer to “Table
1: CD-TEXT TEST DISC TEXT Data Contents”.
Restrictions in CD-TEXT Display
In this unit, some special characters will not be displayed properly.
These will be displayed as a space or a character resembling it.
These will be displayed as a space or a character resembling it.
Table 1: CD-TEXT TEST DISC TEXT Data Contents
(TRACKS No. 1 to 20: Normal Characters)
1
1kHz/0dB/L&R
2
20Hz/0dB/L&R
3
40Hz/0dB/L&R
4
100Hz/0dB/L&R
5
200Hz/0dB/L&R
6
500Hz/0dB/L&R
7
1kHz/0dB/L&R
8
5kHz/0dB/L&R
9
7kHz/0dB/L&R
10
10kHz/0dB/L&R
11
16kHz/0dB/L&R
12
18kHz/0dB/L&R
13
20kHz/0dB/L&R
14
1kHz/0dB/L&R
15
1kHz/–1dB/L&R
16
1kHz/–3dB/L&R
17
1kHz/–6dB/L&R
18
1kHz/–10dB/L&R
19
1kHz/–20dB/L&R
20
1kHz/–60dB/L&R
TRACK
No.
Displayed Contents
Note:
Track No. 21 to 99 are not displayed.
.
>
CLEANING OBJECTIVE LENS OF OPTICAL PICK-UP
• In cleaning the objective lens of optical pick-up, be sure the
following below.
(Figure A)
Note 1.
In cleaning the lens, do not apply an excessive force.
As the optical pick-up is vulnerable, application of excessive
force could damage the lens holder.
As the optical pick-up is vulnerable, application of excessive
force could damage the lens holder.
Note 2.
In cleaning, do not use a cleaner other than exclusive cleaning
liquid (KK-91 or isopropyl alcohol).
liquid (KK-91 or isopropyl alcohol).
Note 3.
Wipe the objective lens spirally from center toward outside. (See
Figure A)
Figure A)
2
Remove the
magnet assy.
magnet assy.
1
Open the torsion holder
(magnet) in direction of
arrow
(magnet) in direction of
arrow
A
.
A
optical pick-up
bracket (top 60) hole
3
Put a cotton bud into
the hole on the bracket
(top 60) and clean the
OP lens.
the hole on the bracket
(top 60) and clean the
OP lens.
5
HCD-GS100
SECTION 2
GENERAL
This section is extracted
from instruction manual.
from instruction manual.
ALPHABETICAL ORDER
A – Q
CD wa
CLEAR qh
DISC SELECT qg
DISPLAY wd
Display window 2
ENTER qj
MENU ws
PAUSE X 5
PHONES jack qd
PLAY MODE 8
PRESET +/– 4
CLEAR qh
DISC SELECT qg
DISPLAY wd
Display window 2
ENTER qj
MENU ws
PAUSE X 5
PHONES jack qd
PLAY MODE 8
PRESET +/– 4
List of Button Locations and Reference Pages
Main unit
R – Z
REC z PAUSE/START qa
REPEAT/FM MODE 9
STOP x 0
TAPE ql
Tape deck 3
TIMER SELECT 7
TIMER SET 6
TUNER/BAND w;
TUNING +/– 4
VIDEO (MD) qk
VOLUME qf
REPEAT/FM MODE 9
STOP x 0
TAPE ql
Tape deck 3
TIMER SELECT 7
TIMER SET 6
TUNER/BAND w;
TUNING +/– 4
VIDEO (MD) qk
VOLUME qf
BUTTON DESCRIPTIONS
=/1 (power) 1
m (rewind) 4
N (play) 4
M (fast forward) 4
. (go back) 4
> (go forward) 4
Z PUSH (front cover) qs
Z PUSH (tape deck) 3
m (rewind) 4
N (play) 4
M (fast forward) 4
. (go back) 4
> (go forward) 4
Z PUSH (front cover) qs
Z PUSH (tape deck) 3
1
wd
ws
wa
w;
ql
qk
qj
qh
2
3 4 5
6
7
8
9
0
qa
qs
qd
qf
qg
6
HCD-GS100
BUTTON DESCRIPTIONS
@/1 (power) 4
n N (play)** 0
X (pause) 0
x (stop) 0
. (go back) wa
m (rewind) ws
M (fast forward) qa
> (go forward) qs
n N (play)** 0
X (pause) 0
x (stop) 0
. (go back) wa
m (rewind) ws
M (fast forward) qa
> (go forward) qs
Notes for the supplied
remote
remote
* The GAME button and the
ALBM –/ALBM + buttons are
not available.
not available.
** The tape deck does not play the
reverse side.
Remote Control
ALPHABETICAL ORDER
A – Q
ALBM +/ALBM –* qd w;
CD wg
CD SYNC wf
DISC +/DISC – qf ql
CD wg
CD SYNC wf
DISC +/DISC – qf ql
DISPLAY wh
ENTER 5
GAME* 6
GROOVE qh
PLAY MODE 2
PRESET +/PRESET – qs
ENTER 5
GAME* 6
GROOVE qh
PLAY MODE 2
PRESET +/PRESET – qs
wa
PRESET EQ qg
R – Z
REC wd
REPEAT 3
SLEEP 1
SURROUND qk
TAPE 7
TUNER/BAND 8
TUNING +/TUNING – qa ws
VIDEO (MD) 9
VOL +/– qj
REPEAT 3
SLEEP 1
SURROUND qk
TAPE 7
TUNER/BAND 8
TUNING +/TUNING – qa ws
VIDEO (MD) 9
VOL +/– qj
6
7
8
9
5
qf
qg
qh
0
qd
qa
qs
ql
qk
qj
w;
1 2 3 4
wa
ws
wd
wh
wg
wf