DOWNLOAD Sharp CD-BA3100 (serv.man9) Service Manual ↓ Size: 5.42 MB | Pages: 76 in PDF or view online for FREE

Model
CD-BA3100 (serv.man9)
Pages
76
Size
5.42 MB
Type
PDF
Document
Service Manual
Brand
Device
Audio / System
File
cd-ba3100-sm9.pdf
Date

Sharp CD-BA3100 (serv.man9) Service Manual ▷ View online

– 21 –
CD-BA3100H
43
LIFT GEAR B
41
MODE BIG GEAR
04
CHANGE BOX R
47
46
28
MT IDLER GEAR F
10
Mark position
(Assemble the mode big gear in this position.)
11
45
42
LIFT GEAR A
37
38
44
LIFT GEAR C
34
36
(A)
(C)
(B)
44
LIFT GEAR C
43
LIFT GEAR B
42
LIFT GEAR A
41
MODE BIG GEAR
Note:
To assemble the mode
big gear, incline it, 
bring it into contact with 
the circumference and 
put the center hole into 
position since the 
hatched part of the main 
base is overlapped with 
the circumference.
Direct the short tooth 
toward the center.
MODE BIG GEAR 
LIFT GEAR A/B/C 
ASSEMBLING POSITION
Scale: 2 magnifications
Scale: 2 magnifications
<Assembling method of lift gear>
After setting up the mode big gear in the 
shown position, engage it with the STB gear A
 (gear on the lower side) at the position (A), 
and assemble them, turning it in the arrow direction 
into the position (B). (The short tooth directs toward the 
center of the mode big gear.)
Check the gap (C) after assembly.
If no gap is found, repeat the above procedure.
L
C1
>ABS<
GAP (0.3-1.5 mm)
33
32
< Importance >
< Importance >
Figure 21
CD-BA3100H
– 22 –
Mark position
37
°
33
32
30
TRAY DRIVE GEAR F
35
TRAY JOINT GEAR F
02
CHANGE BOX L
< Importance >
Direct the recess part
(trapezoidal side) of the
 axis 35 in this direction.
*2
*1: To position the axis part 
      of 35, engage it with 33.
*2: When it is aligned as 
      described in *1, the hatched part 
      (low gear-height part of gear) 
      will be positioned as shown.
Since this gear engagement is not 
visually checked, verify that it does 
not float when the gear box L is installed.
30
TRAY DRIVE GEAR F
35
TRAY JOINT GEAR F
*1
43
41
40
LIFT
CAM
Scale: 2 magnifications
44
11
TRAY JOINT GEAR F
(CHANGE BOX L ASS'Y) ASSEMBLING POSITION
LIFT CAM
Assembling procedure
1. Turn the mode big gear approx. 37 degrees in the arrow direction.
2. Assemble the change box L ass'y.
Note: At this time, the tray joint gear F must be located in the position shown in figure.
          Moreover, the gear must be engaged securely.
3. After assembly, return the mode big gear to the initial position.
4. Assemble the lift cam.
Note: At this time, the lift cam (No.40) must be located in the position shown in figure 22.
47
46
10
45
42
LIFT GEAR A
28
L
40
LIFT CAM
Scale: 2 magnifications
During assembly, make the 
O part visible in this direction.
Note: Among 4 ribs on the 
          circumference, one rib alone 
          is provided with O.
< Importance >
30
TRAY DRIVE GEAR F
35
TRAY JOINT GEAR F
Figure 22
– 23 –
CD-BA3100H
Figure 23
Adjusting procedure
1. Turn the mode big gear approx. 37 degrees in the arrow direction.
2. Viewing from the front side of the mechanism, verify that the guide ribs
     (CHANGE BOX L/R and STB HOLDER)of tray are as tall as each other.
3. If they are not, bend the lever for adjustment. (Refer to the details.)
Note: Also apply the same adjustment on the R side.
STB HOLDER HEIGHT ADJUSTING METHOD 
47
46
10
11
45
42
LIFT GEAR A
43
41
32
35
40
44
33
30
Mark position
80
TOP PLATE F
37
°
(121)
OS LEVER
Bend this portion to adjust the STB HOLDER
When high
(Narrow the gap.)
When low
(Broaden the gap.)
Adjustment procedure
1. Rotate the MODE BIG GEAR by 37
°
 in the arrowed direction.
2. Check that the guide ribs (CHANGE BOX L/R and STB HOLDER) on the arrowed
    TRAY are at the same height when looked from the front.
3. If they are not, bend the OS LEVER to adjust them. (Refer to the detail drawing.)
Note: Adjust the R portion in the same procedure.
02(102) CHANGE BOX L RIB
03(147) STB HOLDER RIB
03(147) STB HOLDER RIB
04(103) CHANGE BOX R RIB
CD-BA3100H
– 24 –
Measure to be taken when a disc cannot be removed due to a mechanism trouble
First, remove the mechanism unit section from the set, and check for the state of the disc.
(Remove the top plate R if necessary.)
<State of the disc>
(1) When the disc is in the normal PLAY (chucking) position 
 Try to eject the disc by turning the mode big gear/tray big gear
manually.
* At this time, be sure to adjust the tray's position (height).
(2) When the disc is in the normal STOCK position 
Try to eject the disc by turning the tray big gear manually.
* At this time, be sure to adjust the tray's position (height).
(3) When the disc is not in the normal position 
The tray or disc is not in the normal position.
(The tray or disc may catch somewhere.)
Remove the TOP PLATE F/DISC OB lever.
Unlock the tray lock lever and pull out the tray which is not caught.
Move the caught tray or disc and remove the disc.
In case of (1) and (2), the mechanism is normal (defective circuit parts, etc.). However, it may stop somewhere.
This is the reason why you should try to turn the tray big gear first.
In case of (3), either of the big gears does not turn.
Figure 24
L
91~96
TRAY1~TRAY6
Mark position
Be sure to assemble the tray into this position.
32
Insert it along the guide of 
the change box.
Rear
side
33
30
35
TRAY No.1~6
Rear surface: Stamped.
Note: During insertion, 
         Do not accidentally rearrange
         tray numbers.
43
41
40
44
47
46
10
11
Tray installing method: (After adjusting the height of the STB holder)
1. Turn the mode big gear to the mark position to lower the STB holder to 
    the bottom area.
2. From the front side, install the tray. (Securely insert it to the lock position.)
TRAY 6
TRAY 5
TRAY 4
TRAY 3
TRAY 2
TRAY 1
40
30
35
42
LIFT GEAR A
45
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