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Repair tips

Make	Model	Problem	Solution	Date

Found: 8
Sanyo	CBP3012	Dead - no o/p from psu	Q511 2SA608 s/c - now tripping as Q533 2SC536 faulty	14-09-04
Sanyo	CBP3012	HT low & no regulation	Q553 2SC536 in error sensing leaky	14-09-04

Sanyo	CBP3012 A3	Bright raster with fback lines	No HT to RGB stage as R557 10R was o/c (in psu)	14-09-04
Sanyo	CBP3012 A3	Dead	R502 3R9 6w o/c, Q513 chopper tr 2SD1710 s/c, Q553 2SC536 s/c, D515 PC1138 opto also replaced as a precaution, Q512 2SC3807 s/c (use correct replacement)	14-09-04
Sanyo	CBP3012 A3	Pic int blanks out	Dry joints Q241 2SA1015 in lum signal feed	14-09-04
Sanyo	CBP3012 A3	St/by only - HT present at LOP Tr	No line drive - Q431 line dr tr no collector supply - Q551 2SB764 pnp s/c - used BC640 in lieu	14-09-04
Sanyo	CBP3012 A3-A14	Picture blanks out intermittently	Check for dryjoints at transistor Q241 ( 2SA1015 ) which is in the luminance signal feed between the LA7680 jungle chip and the	14-09-04
Sanyo	CBP3012-10	Slow start up	R520/521 120k	14-09-04

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