Does the unit show a clock display - or a standby light on the front? if not, then the PSU is likely to be the cause, with several faulty components, including electrolytic capacitors. If there is a standby LED, but it won't go further, the unit is in protection mode; again, from the (suspected) power supply.
You can opt to visually inspect the condition of the PSU (assuming the unit is out of warranty, and if so, have a look at the electrolytics - many may have bulged/leaked), or, if it still has a warranty, submit to a service centre for a quote on likely repair/parts costs, although I don't think it would be economical.
It is up to you as to how much further you wish to go with this - but keep in mind the possible expense involved along with availability of parts/boards. These days manufacturers lean toward board replacement rather than individual parts replacement/repair.
I strongly suggest the service centre for a quote idea in this case - it may be a simple fix by a qualified technician (assuming parts are available and straightforward to replace).
Wait and see what the repair shop says. Samsung had a habit of using under-rated/under-valued components (particularly resistors and capacitors) in many of their power supply circuits.
This is not a task for the DIY user to undertake.
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The Turn Signal Indicator
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The Sidemarker Lamp
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The Sideview Mirror (Pontiac Thunder only)
The turn signal switch also sends a separate on-off signal to the Daytime Running Lamps (DRL) control module, which relays the signal to the appropriate front turn signal. The front turn signals are grounded at G101 and G102. The rear turn signals are grounded at G401. The sidemarker lamps are grounded through the corresponding front parklamp.
The sideview mirror turn signals are a bank of LEDs placed behind the mirror glass.
The hazard lamps operate on battery voltage. The HAZARD fuse supplies battery voltage to the turn signal switch. When the hazard switch is pressed, the turn signal switch sends battery voltage to the hazard lamp/turn signal flasher, which sends an on-off signal to the turn signal switch. The turn signal switch send the on-off signal to all the turn signal lamps, causing all the lamps to flash including both IPC turn signal indicators. The hazard lamp/turn signal flasher is grounded at G200.
When the parklamps are ON, the sidemarker lamps receive voltage from the park lamp supply voltage circuit and illuminate. The sidemarker lamp is grounded through the corresponding rear turn signal. When the turn signal switch is place in the left or right hand position, the rear turn signal illuminates and the sidemarker lamp will loose its ground, causing the sidemarker lamp to turn off when the turn signals are on and to illuminate again when the turn signal is off.
Which blub an socket did you replace ? check the other blub ? The switch and or the flasher module can cause this problem .
Replace the turn signal switch. Refer to Multifunction, Turn Signal, and Hazard Switch Replacement - On Vehicle in Steering Wheel and Column.
Did you complete the replacement?
Which
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