Won't turn on.stand-by light flashes.timers are

Flashing of standby light are fault indications, technically called blinking codes. From the number of flashes that occur at one time switch ON, you can get an idea about the faulty circuit section inside it. If you wish to get more details, check this site. Pull up older posts there. Check the site with patience, as it has over 2300 posts now. All are related to electronic equipment repair help. Search the site by 'Timeslide' option. It will make search easy. Or, type in the brand name to your device into its search box, and press "Enter"
Blinking codes to many brand TVs are described in detail.

Not making it on or out of standby---first place to look is the power supply for signs of damage or puffed up filter caps there.

Flashing of timer is fault indications. Check this site for more details. It has more than 1400 posts to different brands of electronic entertainment and other equipments. All posts referrers with the repair and fault finding to electronic entertainment equipments. It will be best to view it either in Flipcard or Timeslide option, can be selected by the sidebar tag at the top left of the display screen. Timeslide view will be the best to select. If you are using Google Chrome as browser, Flipcard option will be the best.

Usually a lamp but no model or brand listed here.

the green light blinking is normal if set has been unplugged--when set is plugged back it should blink for about 70 seconds and then go out--then you can try to turn it on---it is the DM unit inside the set booting up.

If the light just blinks and never stops you have likely bad caps in the DM unit---there are kits available for that.

The other possible reason is that so called reset switch may be bad--fairly easy way to find that out and it is more common than you would think, let me know if you have questions.

SD TECH

depends on brand and model number of set.

1) You performed correct troubleshoot steps down the line.
Last thing would be to install defect timer on another light circuit in house, and see if problem is the timer or wire going to coach lights.
http://waterheatertimer.org/pdf/Intermatic-ej351c.pdf
http://waterheatertimer.org/Intermatic-timers-and-manuals.html

2) EJ351C has 1 year limited warranty.
Buy new EJ351c and install single pole light switch until timer replacement is available.
Timer has easy 2-wire installation. Turn off power. Connect new timer just like old one was connected. Either timer black wire connects to either wire in switch box.
http://www.smarthome.com/25077/Intermatic-EJ351C-24-Hour-Mechanical-In-Wall-Timer/p.aspx
http://www.amazon.com/Intermatic-EJ351C-Programmable-Mechanical-Security/dp/B000Q9YUGU

i have the sharp cd-sw330, it has no display and won't turn on but the timer just keeps flashing, i have done the bit it says about pressing the timer button then arrows and memory but that doesn't seem to work help?

defective DM assembly

I will need to know the model number of your set to help you as well as if the light blinks a certain number of times in between pauses. Please respond to this same post.