MDX-C8970 (serv.man3) - Sony Car Audio Service Manual (repair manual)

mdx-c8970 (serv.man3) service manual
Model
MDX-C8970 (serv.man3)
Pages
1 Few pages! See other manuals at the bottom of the first or last page.
Size
30.2 KB
Type
PDF
Document
Service Manual
Brand
Device
Car Audio / CORRECTION-1
File
mdx-c8970-sm3.pdf
Date

Read Sony MDX-C8970 (serv.man3) Service Manual online

SERVICE MANUAL
CORRECTION-1
Correct your service manual as shown below.
MDX-C8970
US Model
ELECTRICAL ADJUSTMENTS
!
 : Indicates corrected portion.
Sony Corporation
Mobile Electronics Company
9-926-584-91
99H0519-1D
Printed in Japan  
C
 1999. 8
Published by Quality Assurance Dept.
FM Stereo Separation Adjustment (Wide)
Setting:
[SOURCE]
 button : FM
Procedure:
1. Set to the test mode. (See page15)
2. Push the 
[SHIFT]
 button.
3. Push the 
[4]
 button four times.
4. Push the 
[5]
 button once and set to wide mode.
5. Adjust the volume RV3 on FM/AM tuner unit (TU101) for the
best separation.
L-CH Stereo separation: A-B
R-CH Stereo separation: C-D
The separations of both channels should be equal.
Specification: Separation more than 24 dB
Adjustment Location: See page 17.
FM Stereo
Level meter
Level meter
signal generator
connection
reading (dB)
output channel
L-CH
L-CH
A
B
L-CH
R-CH
Adjust RV3 on TU101
for minimum reading.
R-CH
R-CH
C
R-CH
L-CH
D
FM RF signal
generator
Carrier frequency : 98.00 MHz
Output level
: 70 dB (3.2 mV)
Mode
: stereo
Modulation
: main : 1 kHz, 33.75 kHz deviation (45%)
  sub : 1 kHz, 33.75 kHz deviation (45%)
:
 19 kHz pilot: 7.5 kHz deviation (10%)
0.01 
µ
F
set
antenna jack
+
level meter
10 k
 
LINE OUT jack (CNP601)
(75 
Ω)
FM Stereo Separation Adjustment (Narrow)
Setting:
[SOURCE]
 button : FM
Procedure:
1. Set to the test mode. (See page15)
2. Push the 
[SHIFT]
 button.
3. Push the 
[4]
 button four times.
4. Push the 
[5]
 button twice and set to narrow mode.
5. Adjust the volume RV4 on FM/AM tuner unit (TU101) for the
best separation.
L-CH Stereo separation: A-B
R-CH Stereo separation: C-D
The separations of both channels should be equal.
Specification: Separation more than 18 dB
Adjustment Location: See page 17.
FM RF signal
generator
Carrier frequency : 98.00 MHz
Output level
: 70 dB (3.2 mV)
Mode
: stereo
Modulation
: main : 1 kHz, 20 kHz deviation (26.5%)
  sub : 1 kHz, 20 kHz deviation (26.5%)
:
 19 kHz pilot: 7.5 kHz deviation (10%)
0.01 
µ
F
set
antenna jack
+
level meter
10 k
 
LINE OUT jack (CNP601)
(75 
Ω)
FM Stereo
Level meter
Level meter
signal generator
connection
reading (dB)
output channel
L-CH
L-CH
A
B
L-CH
R-CH
Adjust RV4 on TU101
for minimum reading.
R-CH
R-CH
C
R-CH
L-CH
D
Page 16
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Download Sony MDX-C8970 (serv.man3) Service Manual (Repair Manual)

Here you can read online and download Sony MDX-C8970 (serv.man3) Service Manual in PDF. MDX-C8970 (serv.man3) service manual will guide through the process and help you recover, restore, fix, disassemble and repair Sony MDX-C8970 (serv.man3) Car Audio. Information contained in service manuals typically includes schematics / circuit diagrams, wiring diagrams, block diagrams, printed wiring boards, exploded views, parts list, disassembly / assembly, pcb.