Pioneer VSX-521-K, Service Manual

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VSX- 8 21-K
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3. BASIC ITEMS FOR SERVICE
3.1 CHECK POINTS AFTER SERVICING
3.2 JIGS LIST
Items to be checked after servicing
To keep the product quality after servicing, confirm recommended check points shown below.
See the table below for the items to be checked regarding video and audio.
No.
Item to be checked regarding video Item to be checked regarding audio
Procedures Check points
1 Confirm whether the customer complain has been solved.
If the customer complain occurs with the particular source, such
as Dolby Digital, DTS, AAC, D
V D-A and HDMI, input it for the
operation check.
The customer complain must not be reappeared.
V ideo, Audio and operations must be normal.
2 Check the analog audio playback.
(Make the analog connections with a D
V D player.)
Each channel audio and operations must be normal.
3 Check the digital audio playback.
(Make the digital connections with a D
V D player.)
Each channel audio and operations must be normal.
4 Check surround playback.
(Select Surround mode and check the multichannel operations
via the DSP circuit.) Each channel audio and operations must be normal.
5 Check the video outputs.
(Connect with a D
V D player.)
V ideo and operations must be normal.
6 Check the tuner (AM and FM) operations. Audio and operations must be normal.
7 Check the sound from headphone output. Sound must be normal, without noise.
8 Check the appearance of the product.
Block noise Distortion
Horizontal noise N oise
Flicker V olume too low
Disturbed image (video jumpiness) V olume too high
Too dark V olume fluctuating
Too bright Sound interrupted
Mottled color
N o scratches or dirt on its appearance after receiving it for
service.
Jigs List
Jig Name Part No. Remarks
RS-232C update jig (Jig + 10P FFC) GGF1642
Firmware update (RS-232C
↔
Rear panel)
RS-232C cable (9-pin to 9-pin, straight cable)
9P extension jig cable (for 5 ch) GGD1739
Diagnosis (AMP Assy
↔
AUDIO Assy)
31P extension jig FFC GGD1738 Diagnosis (DISPLAY Assy
↔
CPU Assy)
Diagnosis (D-MAI N Assy
↔
CPU Assy)
Diagnosis (D-MAI N Assy
↔
BRIDGE A Assy)
13P extension jig cable (for 7 ch) GGD1740
Board to board extension jig cable GGD1733
Board to board extension jig cable GGD1734
Lubricants and Glues List
Name Part No. Remarks
Silicon grease GEM1057 Refer to "9.2 EXTERIOR SECTIO N ( V SX-821-K, V SX-921-K)"
and "9.3 EXTERIOR SECTIO N ( V SX-521-K)".
Silicon adhesive GYA1011
(KE40RT
V -W)
Refer to "9.2 EXTERIOR SECTIO N ( V SX-821-K, V SX-921-K)"
and "9.3 EXTERIOR SECTIO N ( V SX-521-K)".