DOWNLOAD Sharp SD-SH111 (serv.man20) Service Manual ↓ Size: 22.68 KB | Pages: 3 in PDF or view online for FREE

Model
SD-SH111 (serv.man20)
Pages
3 Few pages! See other manuals at the bottom of the first or last page.
Size
22.68 KB
Type
PDF
Document
Service Manual
Brand
Device
Audio / System / Troubleshooting
File
sd-sh111-sm20.pdf
Date

Sharp SD-SH111 (serv.man20) Service Manual ▷ View online

– 95 –
SD-SH111
TROUBLESHOOTING
Is the disc chucked at the specified location ?
Check the changer mechanism.
Check the connection between pins 3 and 7 of 
IC705 and M3.
Does the pickup move in the direction of inner 
periphery ?
No
No
No
No
Replace IC705.
Check the cable connecting to the CS3301.
(Check the CS3301 and line of pins 13 and 14 of 
IC3801.)
Check the cable connecting to the CS3301.
Repair the changer mechanism.
Yes
Yes
No
Yes
After moving in the direction of inner periphery, 
does the pickup move in the direction of outer 
periphery ?
Yes
Check the M_8 V line.
Is 8 V being applied to the pins 8 of IC3801 ?
Yes
Replace the IC3801.
Yes
The disc does not rotate.
No
Is FE signal inputted into the pin 150 of IC3701.
Check or replace IC3701.
Check the line between the IC3301 and IC3701.
When removing disc and applying load to spin 
motor (by stopping with hand, etc.), objective lends 
moves up and down? (Checking item to symptom)
Note) If load is not applied to spin, lens does not 
move and becomes NO DISC immediately.
See FLOW CHART <The [No Disc] indication.
(In case focus servo does not function.)>
Replace IC3301.
Is there input signal on the pins(50,55) and (49,54) 
of IC3301?
Is FE signal output to the pin 21 of IC3301 when 
the disc is set ?
No
No
Check the connection of optical pickup cable.
If it is normal, replace the optical pickup.
Yes
No
Yes
Yes
Yes
The [No Disc] indication. (In case of focus error)
In case of CD.
For DVD, 58, 59, 63, and 64
SD-SH111
– 96 –
Is the focus control signal output to the pin 14 of
IC3701?
Check the IC3701 DAC power source periphery 
circuit. If it is normal, replace IC3701.
Check the line between the IC3701 and the focus
actuator terminal.
Check M_5 V line.
Is 8V voltage applied to the pins 8 of IC3801?
Replace IC3801.
Is the focus control signal from the pin 158 of 
IC3701 input into the pin 23 of IC3801 ?
Check the focus control signal (FOD) line between 
the IC3801 and IC3701.
Is the focus control drive voltage output from the 
pins 17 and 18 of IC3801 ?
Focus control drive voltage applied to 47, 49 pin 
of CS3301 (focus actuator terminal) ? 
Check the connection of optical pickup cable.
If it is normal, replace the optical pickup
mechanism Unit.
Check the D_3.1 V line and A_5 V line.
Is the drive signal (FLGA) of Q3301 (HF- MOD SW)
being output to the pin 37 of IC3701?
Is the drive signal (LDO2) of Q3302 (LD POWER 
CTL) being output to the pin 4 of IC3301 ?
Is the voltage of 3.3 V being applied to the emitter 
of Q3301? And, is the voltage of 3.4 V being 
applied to the emitter of Q3302 ?
Is the voltage of 3.1V and 2.3V being applied to 
the pins 34 and 43 of CS3301, respectively?
Check the connection of optical pickup cable.
If it is normal, replace the optical pickup
mechanism Unit.
Check the Q3301 and line between Q3302 and 
CS3301.
Check the line from the pin 37  of IC3701, to the
 base of Q3301.
Check the line between the pin 45 of IC3301 and 
the base of Q3302.
No
No
No
No
No
No
No
No
Yes
Yes
Yes
Yes
No
Yes
Yes
Yes
Yes
The [No Disc] indication. (In case focus servo does not function.)
The DVD disc is not recognized.
(When the laser beam does not go on)
Check the A_5 V line.
Is the voltage of 3.4V being applied to the emitter 
of Q3303 ?
Is the voltage of 2.3V being applied to the pin 29 
of CS3301 ?
Check the connection of optical pickup cable.
If it is normal, replace the optical pickup
mechanism Unit.
Check the line between Q3303 and CS3301.
No
No
Yes
Yes
The CD disc is not recognized.
(When the laser beam does not go on)
– 97 –
SD-SH111
Refer to “Disc does not turn.” 
No
Check for contamination of objective lens of 
optical pickup.
Replace the optical pickup mechanism Unit.
When chucked, disc starts rotating ?
Check the DVD servo PWB unit.
Place the disc on the tray and close it.
Replace the DVD servo PWB unit.
Is the level of RF signal which is output from
pin 28 of IC3301, normal ?
No
No
No
Yes
Yes
Yes
Yes
Both picture and sound do not operate normally. (1)
Set the disc on the disc tray.
Are the video signals shown above input into
the pins of CP5001?
CP5001   7pin Y/CR
CP5001   9pin C/CB
CP5001   5pin VOUT
Check or replace DSP PWB
Check the line between the pins of DVD servo unit
IC3601 and the pins of CP5001.
IC3601 105pin 
 CP5001   7pin Y/CR
IC3601 106pin 
 CP5001   9pin C/CB
IC3601 102pin 
→ 
CP5001   5pin VOUT
No
Yes
Yes
Picture do not operate normally.
Check or replace IC3601.
Set disc to DISC tray and play.
Digital sound signal inputted to pin 34 of 
IC504?
Check each line between  pin 133 of IC3601 and 
input pin 34 of IC504.
Check or replace DSP PWB
No
Yes
Yes
Yes
Sound is not given properly from speaker.
Display

Sharp SD-SH111 (serv.man20) Service Manual ▷ Download

  • DOWNLOAD Sharp SD-SH111 (serv.man20) Service Manual ↓ Size: 22.68 KB | Pages: 3 in PDF or view online for FREE
  • Here you can View online or download the Service Manual for the Sharp SD-SH111 (serv.man20) in PDF for free, which will help you to disassemble, recover, fix and repair Sharp SD-SH111 (serv.man20) System. Information contained in Sharp SD-SH111 (serv.man20) Service Manual (repair manual) includes:
  • Disassembly, troubleshooting, maintenance, adjustment, installation and setup instructions.
  • Schematics, Circuit, Wiring and Block diagrams.
  • Printed wiring boards (PWB) and printed circuit boards (PCB).
  • Exploded View and Parts List.