DOWNLOAD Sony CDX-C760 / CDX-C760RDS Service Manual ↓ Size: 1.82 MB | Pages: 59 in PDF or view online for FREE

Model
CDX-C760 CDX-C760RDS
Pages
59
Size
1.82 MB
Type
PDF
Document
Service Manual
Brand
Device
Car Audio
File
cdx-c760-cdx-c760rds.pdf
Date

Sony CDX-C760 / CDX-C760RDS Service Manual ▷ View online

– 21 –
2-7. CHASSIS (T) SUB ASSY
2-8. LEVER ASSY
5
 guide (disc)
6
 lever (R) assy
7
 lever (L) assy
1
 PS 2x4
2
 DISC IN SW board
4
 claws
2
 P 2x3
3
 chassis (T) sub assy
1
 P 2x3
3
 tension spring (LR)
– 22 –
2-9. SERVO BOARD
2-10. ROLLER ASSY
• When installing, take note of the positions
  arm (roller) and washers. (Fig. 1)
2
 arm (roller)
3
 roller assy
Fig. 1
2
 PS 2x5
3
 PS 2x5
8
 CN2
6
 P 2x3
 CN4
!™
 SERVO board
5
 CN6
1
 PS 2x4
7
 loading motor assy
9
 CN5
4
 heat sink
4
 PS 2x3
5
 LOAD SW board
1
 tension spring (RA)
arm
washers
washer
arm washer
 PS 2x4
– 23 –
2-11. CHASSIS (OP) (O/S) ASSY
2-12. OPTICAL PICK-UP BLOCK
5
Turn loading ring in the
direction of the arrow.
2
 damper (T)
3
 damper (T)
4
Fit lever (D) in the
direction of the arrow.
3
 optical pick-up block
1
 P 2x3
2
 sled motor assy
8
 compression spring (FL)
1
 tension spring (angle)
6
 chassis (OP) (O/S) assy
7
 compression spring (FL)
– 24 –
SECTION 3
ELECTRICAL ADJUSTMENTS
Carrier frequency : 97.9 MHz (C760)
: 98.00 MHz (C760RDS)
Output level
: 22 dB (12.6 µV)
Mode
: mono
Modulation
: 1 kHz, 22.5 kHz deviation (30%)
Procedure :
1. Set to the test mode.
2. Push the  SOURCE  button and set to FM.
Display
FM Auto Scan/Stop Level Adjustment
Setting :
SOURCE button : FM
3. Push the preset  3  button.
Display
4. Adjust with the volume RV2 on TU1 so that the “FM”
indication turns to “FM0” indication on the display window.
But, in case of already indicated “FM0”, turn the RV2 so that put
out light “0” indication and adjustment.
Display
FM RF signal
generator
0.01 µF
antenna
terminal
set
  CD SECTION
CD section adjustments are done automatically in this set.
  TUNER SECTION
Cautions during repair
When the tuner unit is defective, replace it by a new one because
its internal block is difficult to repair.
0 dB = 1 µV
TEST MODE
This set have the test mode function. In the test mode, FM Auto Scan/
Stop Level and AM (MW) Auto Scan/Stop Level adjustments can be
performed easier than it in ordinary procedure.
<Set the Test Mode>
1. Set the “OFF” mode.
2. Push the preset  4  button.
3. Push the preset  5  button.
4. Press the preset  1  button for more than two seconds.
5. Then the display indicates all lights, the test mode is set.
<Release the Test Mode>
1. Push the  OFF  button.
Note on Adjustment
The adjustments of tuner section, should be performed according to
the following sequence.
1. FM Auto Scan/Stop Level Adjustment
2. FM Stereo Separation Adjustment
3. FM RDS S-Meter Adjustment (CDX-C760RDS only)
4. AM (MW) Auto Scan/Stop Level Adjustment
REG
SHUF1
REG
SHUF1
*1 : “REG” is displayed only for CDX-C760RDS.
*2 : CDX-C760RDS has the “98.00” displayed.
Adjustment Location : See page 26.
REG
SHUF1
*
1
*
2
*
1
*
2
*
1
*
2
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