Pioneer qx 9900 service manual

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pioneer qx 9900 service manual

Extracted text from pioneer qx 9900 service manual (Ocr-read)


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5"990.

10.

11.

GX-SSDD

CONTENTS
SPECIFICATIONS ..................................................................................................................... 1
FRONT PANEL FACILITIES-1 .............................................................................................. 3
FRONT PANEL FACILITIES-2 .............................................................................................. 5
CONNECTION DIAGRAM ....................................................................................................... 7

CIRCUIT DESCRIPTION
51 RF circuitry ..
5.2 Audio circuitry
5.3 Power supply circuit.


5.4 Decoder circuit ....... ..
DISASSEMBLY ...................................................................................................................... 15
PARTS AND PCB LOCATION

7.1 Top view
7.2 Bottom view .
DIAL CORD STRINGING
PACKING METHOD AND PART NUMBERS ..................................................................... 19
ALIGNMENT PROCEDURE
10.1 Required instruments .....
10.2 FM 10.7MHz alignment
10.3 FM front and alignment .......
10.4 FM MPX decoder alignment .
10.5 Muting threshold level alignment
10.6 AM 455kHz alignment ..
10.7 AM tracking alignment ..
10.8 Idle current adjustment ...................................................
10.9 DC neutral voltage adjustment .......................................
PARTS REPLACEMENT

11.1 Pilot lamps ......................... . .............................................................................................. 23
11.2 Front glass

11.3 Level meters .
11.4 Tuning and signal meters ............................................................................................... 24