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SONY WRU806A
Service Manual


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

Description of SONY WRU806A 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 28 (click to view)
(7) Check first that indication “L” of “AC1L” on the LCD (Tuner [1]) has disappeared, and then press the S708 switch on the RF-92 board (WRU-806A, Tuner [1]). n If the “L” indication does not disappear from the LCD (on A area: refer to the previous procedure (5) (when the RF input level is lower than the reference level) or “H” is displayed (when the RF input level is higher than the reference level), perform the following adjustment. 1 Check the RF output level and frequency of the signal generator (perform re-setting if necessary), and repeat from procedure (1). 2 If the above conditions (the “L” indication does not disappear, or “H” is displayed) remain even after re-adjustment, it is necessary to check the WRU-806A Tuner Unit. (8) Indication on the LCD (Tuner [1]) appears as follows: LCD:

(13)Check first that indication “L” of “AC3L” on the LCD (Tuner [1]) has disappeared, and then press the S708 switch on the RF-92 board (WRU-806A, Tuner [1]). (14)Connect the signal generator to the ANTENNA B IN connector with DC cut fixture. (15)Indication on LCD (Tuner [1]) appears as follows: LCD:

B C1 L
(B C1 L)

A C2 L
(A C2 L)

(16)Set the FREQUENCY(carrier frequency) of the signal generator as follows; FREQUENCY(carrier frequency): U64 model; 772.000 MHz U66 model; 784.000 MHz U68 model; 796.000 MHz (17)Check first that indication “L” of “BC1L” on the LCD has disappeared, and then press the S708 switch on the RF-92 board (WRU-806A, Tuner [1]). (18)Indication on the LCD (Tuner [1]) appears as follows: LCD:

(9) Set the FREQUENCY (carrier frequency) of the signal generator as follow. FREQUENCY(carrier frequency): U64 model; 776.000 MHz U66 model; 788.000 MHz U68 model; 800.000 MHz (10)Check first that indication “L” of “AC2L” on the LCD (Tuner [1]) has disappeared, and then press the S708 switch on the RF-92 board (WRU-806A, Tuner [1]). (11)Indication on the LCD (Tuner [1]) appears as follows: LCD:

B C2 L
(B C2 L)

A C3 L
(A C3 L)

(19)Set the FREQUENCY(carrier frequency) of the signal generator as follows; FREQUENCY(carrier frequency): U64 model; 776.000 MHz U66 model; 788.000 MHz U68 model; 800.000 MHz (20)Check first that indication “L” of “BC2L” on the LCD (Tuner [1]) has disappeared, and then press the S708 switch on the RF-92 board (WRU-806A, Tuner [1]). (21)Indication on the LCD (Tuner [1]) appears as follows: LCD:

(12)Set the FREQUENCY (carrier frequency) of the signal generator as follow. FREQUENCY(carrier frequency): U64 model; 780.000 MHz U66 model; 792.000 MHz U68 model; 804.000 MHz

B C3 L
(B C3 L)

3-4

MB-806A (U) WRU-806A (U)

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