Read Sharp CD-RW5000 (serv.man7) Service Manual online
– 65 –
CD-RW5000H/CD-RW5000W
TROUBLESHOOTING
When the CD does not function
When the CD section does not operate when the objective lens of the optical pickup is dirty, this section may not operate. Clean
the objective lens, and check the playback operation. When this section does not operate even after the above step is taken, check
the following items.
Remove the cabinet and follow the troubleshooting instructions.
"Track skipping and/or no TOC (Table Of Contents) may be caused by build up of dust other foreign matter on the laser pickup
lens. Before attempting any adjustment make certain that the lens is clean. If not, clean it as mentioned below."
the objective lens, and check the playback operation. When this section does not operate even after the above step is taken, check
the following items.
Remove the cabinet and follow the troubleshooting instructions.
"Track skipping and/or no TOC (Table Of Contents) may be caused by build up of dust other foreign matter on the laser pickup
lens. Before attempting any adjustment make certain that the lens is clean. If not, clean it as mentioned below."
Turn the power off.
Gently clean the lens with a lens cleaning tissue and a small amount of isopropyl alcohol.
Do not touch the lens with the bare hand.
Gently clean the lens with a lens cleaning tissue and a small amount of isopropyl alcohol.
Do not touch the lens with the bare hand.
Dust gradually accumulates on the objective lens during use, and it may degrade performance. To avoid this problem, use a
cleaning disc designed for CD optical pickup lenses.
cleaning disc designed for CD optical pickup lenses.
HOW TO USE
1. Using the brush in the cleaner cap, apply 1 or 2 drops of the cleaning fluid to the brush on the CD cleaner disc which has
1. Using the brush in the cleaner cap, apply 1 or 2 drops of the cleaning fluid to the brush on the CD cleaner disc which has
the mark next to it.
2. Place the CD cleaner disc onto the CD disc tray with the brush side down, then press the play button.
3. You will hear music for about 20 seconds and the CD player will automatically stop. If it continues to turn, press the stop
button.
CAUTION
3. You will hear music for about 20 seconds and the CD player will automatically stop. If it continues to turn, press the stop
button.
CAUTION
The CD lens cleaner should be effective for 30~50 operations, however if the brushes become worn out earlier then please
replace the cleaner disc.
If the CD cleaner brushes become very wet then wipe off any excess fluid with a soft cloth.
Do not drink the cleaner fluid or allow it to come in contact with the eyes. In the event of this happening then drink and /
or rinse with clean water and seek medical advice.
The CD cleaner disc must not be used on car CD players or on computer CD-ROM drives.
All rights reserved. Unauthorized duplicating, broadcasting and renting this product is prohibited by law.
All rights reserved. Unauthorized duplicating, broadcasting and renting this product is prohibited by law.
Cleaner Liquid
Cleaning Disc
PARTS CODE: UDSKA0004AFZZ
PARTS CODE: UDSKA0004AFZZ
CD-RW5000H/CD-RW5000W
– 66 –
STEP 1
Does the display "E-CD01" appear?
Yes
No
Does the pickup move to the inner/outer position using the
'UP'/'DOWN' key?
'UP'/'DOWN' key?
Yes
STEP 2
Laser ON?
Check from pins 7 and 8 of CNP5 via Q4 and pins 6 and 7 of
IC6 to pin 38 of IC2.
IC6 to pin 38 of IC2.
Yes
STEP 3
Focus search?
Yes
STEP 4
No
No
No
Check from pins 5 and 6 of CNP6 via pins 19, 20 and 21 of
IC5 to pin 41 of IC2.
IC5 to pin 41 of IC2.
No
Tracking servo?
Yes
No
Check from pins 21, 22 and 23 of IC6 to pin 24 of IC2.
No
Yes
Yes
Check in the CD test mode.
Check the line of PU-IN SW.
Check from pin 2 of CNP6 via pin 25 of CNP1 to pin 94 of
IC901.
IC901.
Check the line of the slide control.
Check from pins 3 and 4 of CNP6 via pins 17, 18 and 22 of
IC5 to pin 40 of IC2.
Check from pins 3 and 4 of CNP6 via pins 17, 18 and 22 of
IC5 to pin 40 of IC2.
Focus search?
STEP 5
Check from pins 1 and 2 of CNP5 via pins 3, 4 and 5 of IC5 to
pins 31 and 34 of IC2.
Check from pins 2 and 5 of CNP7 to pins 4 and 5 of IC6.
pins 31 and 34 of IC2.
Check from pins 2 and 5 of CNP7 to pins 4 and 5 of IC6.
RF signal
Check from pins 50 and 53 of IC2 to pins 24 and 28 of
CNP1.
CNP1.
No
AUDIO signal
Check from pins 3 and 4 of CNP5 via pins 1, 2 and 6 of IC5 to
pins 29 and 33 of IC2.
Check from pins 1, 3 and 4 of CNP7 to pins 2 and 3 of IC6.
pins 29 and 33 of IC2.
Check from pins 1, 3 and 4 of CNP7 to pins 2 and 3 of IC6.
– 67 –
CD-RW5000H/CD-RW5000W
Troubleshooting for CD-R unit
Stopped
27-JUL-00 09 58
50
µ
s/d
CH1=5V
DC P*10
DC P*10
CH2=5V
DC P*10
DC P*10
CH3=5V
DC P*10
DC P*10
1
2
3
1. Check of supply voltage
-8V Pin 1 of CNP808
+12V Pin 2 of CNP808
+5V Pins 6 and 7 of CNP808
+12V Pin 2 of CNP808
+5V Pins 6 and 7 of CNP808
1. DATA Pin 7 of CNP912
2. CLOCK Pin 5 of CNP912
3. RESET Pin 3 of CNP912
2. CLOCK Pin 5 of CNP912
3. RESET Pin 3 of CNP912
CD or AUX OPT (Digital)
EBU INPUT Pin 1 of CNP911
OTHER FUNCTION (Analog)
A-IN L-ch, R-ch Pin 3 and 5 of CNP914
4. Check of playback signal
A-OUT L-ch, R-ch Pins 1 and 2 of CNP914
Troubleshooting during phono input of stereo turntable
Since this unit is not provided with an earth terminal, the hum noise may be increased during playback when it is connected to a
record player having an earth lead separated from a RCA lead.
In such a case, replace the screw shown in the following figure with XJBSD30P10000 and connect the earth lead of the player.
(Replace the black screw with a general un painted screw.)
record player having an earth lead separated from a RCA lead.
In such a case, replace the screw shown in the following figure with XJBSD30P10000 and connect the earth lead of the player.
(Replace the black screw with a general un painted screw.)
Figure 67-1
Figure 67-2
VCR
To the line output
Red
White
RCA lead
RCA lead
Stereo turntable
MD deck,DSS tuners or DAT decks
To the line
output
socket
output
socket
MD recorder
To the optical line input socket
Replace this screw and
connect the earth lead.
connect the earth lead.
