DOWNLOAD Sony CX-LEMV300 / XR-EMV300 Service Manual ↓ Size: 6.29 MB | Pages: 53 in PDF or view online for FREE

Model
CX-LEMV300 XR-EMV300
Pages
53
Size
6.29 MB
Type
PDF
Document
Service Manual
Brand
Device
Audio
File
cx-lemv300-xr-emv300.pdf
Date

Sony CX-LEMV300 / XR-EMV300 Service Manual ▷ View online

9
CX-LEMV300
2-4. MIC/ECHO BOARD, VCD BOARD
2-5. TAPE MECHANISM DECK (CMAL5Z220A)
qg
VCD board
0
main (VCD) shield case
8
lid (VCD) shield case
4
MIC/ECHO board
9
two screws
(+BVTP3 
×
 10)
6
screw
(+BVTP3 
×
 10)
3
two screws
(+BVTP3 
×
 10)
7
two screws
(+BVTP3 
×
 10)
a
a
qd
wire (flat type) 
     (23core) (CN802)
5
wire (flat type) 
     (5core) (CN801)
1
wire (flat type) 
     (5core) (CN504)
qf
connector (CN804)
2
connector (CN502)
qs
wire (flat type) 
     (9core) (CN803)
qa
wire (flat type) 
     (11core) (CN806)
8
wire (flat type) 7p (CN101)
7
holder (A) shield case
5
holder (B) shield case
4
plate shield case
3
three screws
(+BVTP3 
×
 10)
1
screw
(+BVTP2.6 
×
 6)
2
screw
(+BVTP2.6 
×
 6)
6
screw
(+PSW3 
×
 10)
9
tape mechanism deck
10
CX-LEMV300
2-6. FRONT BOARD
2-7. HOLDER CASSETTE ASSY, MIC JACK BOARD
3
three screws
(+BVTP3 
×
 10)
1
knob volume
4
FRONT board
2
four screws
(+BVTP3 
×
 10)
2
cassette door assy
3
holder cassette
1
four claws
7
spring cassette
0
MIC JACK board
9
jack hold board
4
5
6
8
screw
(+BVTP3 
×
 10)
11
CX-LEMV300
1
connector
(AC IN)
2
connector
(CN308)
5
screw
(+BVTP3 
×
 10)
6
screw
(+BVTP3 
×
 10)
3
four screws
(+BVTP4 
×
 12)
7
MAIN board
4
POWER board
2-8. POWER BOARD, MAIN BOARD
2-9. BD BOARD, OPTICAL PICK-UP (A-MAX.D)
1
Remove two
solders.
5
BD board
2
Remove two solders.
4
6
optical pick-up (A-MAX.D)
3
wire (flat type) (16 core) 
     (CN101)
12
CX-LEMV300
[Cold Reset]
*
The cold reset clears all data including preset data stored in the RAM to initial conditions. Execute this mode when returning the set to
the customer.
Procedure:
1. Press the  POWER  button to turn the set off.
2. Press the  CLEAR x  and  POWER  buttons simultaneously.
3. The fluorescent indicator tube does not display any message and the set is reset.
[Fluorescent Indicator Tube Test Mode]
*
Fluorescent segments are tested when this test is activated.
Procedure:
1. Extract an AC plug.
2. While depressing the  CD u  button, insert an AC plug.
3. All segments of the fluorescent indicator tube turn on.
4. CD test mode is activated.
5. To exit from this mode, press the  POWER  button or disconnect the power cord.
[Version Display Mode]
*
The model and the version are displayed.
Procedure:
1. Press the  POWER  button to turn the set on.
2. To enter the test mode, press two buttons  CLEAR x  and  POWER  simultaneously for more than five seconds. The model and the
version are displayed.
[CD Test  Mode]
1.  How to Start the CD Test Mode
While pressing the  CD u  button, insert the AC plug to the power outlet.
When the test mode is started, all segments of the fluorescent indicatior tube are turned on.
2.  How to Exit the CD Test Mode
Press the  POWER  button or disconnect the AC plug.
3.  Function Descriptions and Application of the CD Test Mode
*1: The driver IC heats up and the protection circuit starts working when the focus search is continued for 10 minutes or longer.
There can be a case that operations can not be performed correctly.
In such a case, turn off the main power. After cooling down the machine, restart the machine.
*2: Be careful not to damage the gear because the sled motor rotates while the  M>  or  .m  button is being pressed even if the
pick-up is located in the innermost track or the outermost track.
Checking item
• FL check
• Microprocessor check
• Sled circuit check
• Tracking circuit check
• Mechanism operation check
• Pickup check
• Each servo circuit is checked
• DRF check
• APC circuit check
• Laser current measurement
• Focus search waveform check
• Focus error waveform check
(DRF in the search mode is
ignored)
• Tracking balance check
No.
1
2
3
4
5
Function
• All FL indicators light
• Pickup moves to the outer
circumference *2
At the same time, lens kicks to
the outer circumference
• Pickup moves to the inner
circumference *2
At the same time, lens kicks to
the inner circumference
• Normal playback
• If TOC cannot be read, focus
search is continued
• LD illuminates all the time
• Focus search continuous
operations *1
• Spindle motor continuous kick
• Tracking servo OFF/ON
• Each time PAUSE button is
pressed, the tracking servo
repeats turning OFF/ON
Display
All indicators light
CD TEST
CD TEST
Normal
READING
Normal
Operation
 M>
button
 .m
button
 CD u
button
 CLEAR x
button
 CD u
button
(during play
back)
Mode
Start mode
Sled mode
Play mode
Search mode
Traverse mode
SECTION  3
TEST MODE
Page of 53
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