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PIONEER SC-LX71/LFXJ
Service Manual


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  • Contains Circuit Diagrams
  • Download
  • PDF Format
  • Complete manual
  • Language: English
Price: $4.99

Description of PIONEER SC-LX71/LFXJ Service Manual

Complete service manual in digital format (PDF File). Service manuals usually contains circuit diagrams, printed circuit boards, repair tips, wiring diagrams, block diagrams and parts list. Service Manual ( sometimes called Repair Manual ) is used mainly by technicians.

If You just want to know how to use Your tv, video, mp3 player etc. You should look for Owner's Manual. After placing order we'll send You download instructions on Your email address.

The manual is available in languages: English

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Text excerpt from page 46 (click to view)
1

2

3

4

G
A

Step 4-3: Reset
IC401(Pin 83) XVCRST(DEC) IC401(Pins 161-164, P22-P29 155-158) N1

M1
Is the voltage "H"(3.3V)? Yes IC501(Pin 3)
B

No

Check the parts and patterns in the path(IC501 - IC401). No Replace IC501.

IsDATA? a there Yes

No

Check the parts and patterns in the path(IC401 - IC1301 and IC401-IC1384). No Replace IC401.

XVCRST(ENC)

M2
Is the voltage "H"(3.3V)? Yes No Check the parts and patterns in the path(IC501 - IC601). No Replace IC501. IC401(Pin 80) XTAL

IC401(Pins 21-28)

P12-19

N1
Is there a DATA? Yes No

*Only 480p/576p/720p/1080i input Check the parts and patterns in the path(IC401 - IC1301 and IC401 and IC1383). No Replace IC401.

M1
Is there a CLK (28.63636 MHz) ? Yes No Check the X401 or IC402. No Replace X401 or IC402.

R436,R435

P10, P11

N2
Is there a DATA? Yes R431,R430 P20, P21 No Check the parts and patterns in the path(IC601 - IC401). No Replace IC401.

C

Step 4-4: I2C
IC401(Pin 121) Does a signal output in constant period (0 - 3.3 V) ? Yes
D

VCSDA

M1
No Check the parts and patterns in the path(IC501 - IC401 and IC501-IC601). No Replace IC501 or IC401 or IC601. IC401(Pin 122) Does a clock output in constant period (0 - 3.3 V) ? Yes VCSCL Is there a DATA? Yes R401(IC601 Side) No

N3
Check the parts and patterns in the path(IC601 - IC401). No Replace IC401. LLC *Only 480i/576i input

N4
Check the parts and patterns in the path(IC501 - IC401 and IC501-IC601). No Is there a CLK? Yes Replace IC401. R429,R428(IC601 Side) P22-29 *Only 480i/576i input No Check the parts and patterns in the path(IC401 - IC601). No

M1
No

Replace IC501 or IC401 or IC601.
E

N5
Is there a DATA? Yes No Check the parts and patterns in the path(IC401 - IC601). No Replace IC401.

Step 4-5: VIDEO CLK,DATA
IC401(Pin 17) LLC

M1
Is there a CLK? Yes No Check the parts and patterns in the path(IC401 - IC1301 and IC401-IC1381). No Replace IC401.
F

H

46
1 2

SC-LX81
3 4

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