Sony KV-G14 Repair Tips 6

Only +9V Supply is Missing

Winding between pin no. 15-14 of T601 open or def., R612-R618 (0.47Ω), D605 (S3L20UF4), C610 (2200MFD/25V), R632-R609 (1Ω), IC521 (PQ09RE11), C523 (100MFD), +9V Supply line short.

Sony KV-G14 Repair Tips 5

Only +B/115V Supply is Problem

Winding between pin no. 13-11 of T601 open or def., D604 (30DF6FC8), C609 (100MFD/160V), +115V supply line short.

Sony KV-G14 Repair Tips 4

Power Supply Switching Problem

R601-R602 (1.8Ω), R617-R610-R636 (15K), R611 (0.1Ω), IC601 (STR-S6707) & related parts, 

Sony KV-G14 Repair Tips 3

IC601 (STR-S6707) Overheats or Blows off

IC601 (STR-S6707) & its mica insulation, C627 (680pf/2KV), C1633 (1000pF), C632 (470pF), C631 (4700pF), C604 (220MFD/400V), D601 (RBV-406H), D611-D610-D609-D607 (4 x D1NL20), C624 (1000MFD), C634 (470pf), R623 (100Ω), R625 (3K9), C623 (220MFD), C628 (470pF), IC603 (PC123F2) & related parts, IC602 (SE115N) & related parts, SRT T601, C630 (470pF), R616 (8M2), check other parts of power supply, check horizontal out-put section.

Sony KV-G14 Repair Tips 2

Set Dead,No output from power supply.

Mains wire, F601 (3.15A), On-off switch S601, Line filter T605, R601, R602 (1.8Ω ),  D601 (RDV-406H), C604 (220MFD/400V), R622 (0.33Ω/2W), R611 (0.1Ω), R617, R610, R636 (15K/3W), D 610 (D1NL20), C624 (1000MFD), R624 (18Ω), D607 (D1NL20), C623 (220MFD), IC601 (STR-6707) & related parts, T601 (SRT), check secondary side of T601, IC602 (SE115N) & related parts, IC603 (PC123F2) & related parts.

Sony KV-G14 Repair Tips 1

Set Dead, AC Fuse F601 (3.15A) Blows off

Main wire, on-off switch S601, C621(0.1MFD), line filter T605, PTC601, deg coil, C602(0.0047MFD), C605-C607-C603(4*4700pF), D601(R6707) & related parts.