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Make	Model	Symptom	Problem
SONY	CCDV8AFU	No recording	Unit playback was fine. would not record anything at all.snow was all that was on tape. all necessary signals were present,video, sync, record correct. would erase previous information.
SONY	CDP650ESD	Alignment	After installing bu-1c, alignment difficult to perform forrf pll.
SONY	XR780	Am/fm tuner lock-up	When advancing tuning manually, tuner would advance approx.2/3 of the way up the band normally, after which point the display wouldcontinue to advance, but actual station tuning would not. in scan mode,tuner would advance 2/3 of the way up the band, aft
SONY	XR66	Schematic error - power pcb	Seems radio would not turn off when ignition switch is off.found power pcb not etched properly causing continuity between yellowlead (back-up) and red lead (acc).
SONY	M80	Rec/play "u" spring	Need p/n for u spring that operates r/p sw.
SONY	KV25DXR	Hmh not locked	Home management helper program was out of sync. looked likea lot of dashed lines.
SONY	CCDV8AFU	Intermittent break-up in picture/speed change sp/lp	Record ok. during playback any tape including self-recordedpicture would break-up with white streaks and speed would change back andforth between sp/lp modes. troubleshooted atf circuit to no avail.changed ui-6 board with known good board, same thing.
SONY	KPR4110	Intermittent picture, replaced ic-6006	This unit had intermittent muted video (no raster) whentapping on ic6006 or ic6008. the picture would flash to black.
SONY	KV1981R	No display, open l101	Unit had no on screen display. found l101 open.
SONY	CCDV8AFU	Breaks tapes on eject	The unit breaks or streaks the tape on eject. we found theproblem to be caused by guide number 8. the guide was severely pinchingthe tape. this of course lead to excessive take up torque. surprisinglythe unit worked fine in pb and rec. readjustment
SONY	KV2647R	Poor color, b and g wires to c board reversed	The unit had fairly good b/w but the color picture definitelyindicated that there was some sort of demodulator problem. it was notpossible to obtain the correct color bar display - no yellow or magentaand the red, blue and green were misplaced. the ser
SONY	SLHF900	Unit intermittently changes channel indication	Intermittently the channel indication on the display tubewould change. eg. if channel 11 was tuned in, intermittently the displaywould read 123 and then change back to 11. there was no change in videoor audio information. we found the rqst, data and c
SONY	FD40A	Absence of video, rotated yoke	Complaint was absence of video, raster was ok. please notethat if anyone has replaced the picture tube on these units and acci-dentally installed the yoke 180 degrees out of position, the receiver willnot produce video.
SONY	KV25XBR	No raster - no remote control function - sleep light on	No raster - no remote control function - sleep light on.first checked for raster by turning screen control up, raster was visible,checked voltages at a-13 5v was low, checked q251 ok checked q251 leaky.
SONY	KV2782R	Vertical lines and video collapsed, replaced yoke	At turn on a 2 wide bar appeared on the screen with verticalretrace lines. scoped pin 2 of ic501 on d board the vertical pulse had alot of noise and pin 5 read 6v. checked all components in the area andused freeze spray unit ok for about 5 min. traced
SONY	CDXR7	Replacement of display drive pc board ass	Several cdx-r7s with cracked etchings on the display drivepcb assys. particularly right at the solder connections to the display(front panel) pcb. the face plate cannot be removed more than once or theflex cable breaks due to the angle at which it must
SONY	SLHFR90	Shut down in play mode	Unit would shut down intermittently in play, ff and rew ok.
SONY	SLHF900	Tape damage from capstan overrun	Unit would intermittently eat tapes after on index search ofcue/review. capstan motor would overrun and spill tape. observed amomentary low on pin 3 of ic505 (pwm gen) on ss-53 board would causecapstan motor to overspeed. this would continue even if t
SONY	SLHF450	Adjustment method is incorrect	Adjustment method in manual is incorrect, regarding forwardtorque, p176, section 3-14. the correct version may be found in thesl-hft7 manual. sl-hf450 manual lists wrong connector and pin numbers. -hq comments: we will issue a supplement on this matte
SONY	BMC220	Black lines in picture	Two diagonal lines black in picture during playback of self-recorded tapes. unit connected to monitor via bmc-j88u jig for testing.