Picture went black except for partial green and blue lines &2 thin red lines

SOURCE: RCA F36674ET - Only beeps when turned on

Clearly shows problem in deflection area both horizontal and vertical section. Horizontal lines is due to vertical section problem and making bbzzzz is due to horizontal output transistor short and sometimes LOT SHORT.

SOURCE: can only see half the picture

your problem is in vertical output section.

the ckt which is connected to vertical output section is called feedback ckt.

please check.

1 loose contact in feed back ckt.

2 mostly this problem is due to electrolytic capacitor failure.

3 vertical output  IC or transistor failure.

4 check for proper supply to vertical output.

5  low value resistor failure in v/output ckt  (.in rare case)

IF YOU ARE NOT TECH PERSON PLEASE TAKE HELP.

1. hope this will help.

SOURCE: horizontal bands

you may have a problem with the vertical output IC.

SOURCE: Picture Problem

This is a problem (one of several) caused by poor solder connections on the circuit board. RCA uses the metal shield can surrounding the tuner circuitry (the area where the cable connector is located) to provide several ground connections. Many of these connections go bad (cracks form) and the missing ground connections cause the "picture shrinking" you see. Other problems are loss of tuning, set that intermittently turns off or on by itself, set that won't turn on at all, and even more.

The repair involves removing the circuit board and flipping it over so you can remove a metal cover on the bottom, repairing the several (many) affected connections, and then reassembling. This is a relatively easy repair for someone with soldering experience and the right tools (both a high-heat soldering gun and a low-heat iron are needed). But because of the fragile circuit traces in the repair area it is possible to do more harm than good if you don't know what you're doing.

RCA produced a service bulletin several years back detailing the areas to be repaired (although they still refused to admit they just hadn't soldered the places adequately to begin with). I'm not home now so I can't check my files but I'll see if I can find a link and add a comment later. When I was in the service business we charged around $60 for the repair. You might want to get an estimate from a shop (they should already be familiar with this trouble). Or if you're looking for a reason to buy a new set, try the repair yourself. If you're successful you've saved yourself the money. If not, it wasn't working anyway!

SOURCE: NO PICTURE BLACK SCREEN AND A BLUE LINE ACROSS SCREEN.

The vertical circuit has failed. This can be as simple as poor connections on the pins of the vertical IC or a defective IC. If you can solder, you can fix this yourself. Let me know if you wish to attempt the repair and I'll provide details and instructions.

Dan