0603 red LEDs drilled into L+R trigger buttons. LEDs are activated via the power switch (see picture 2). PSP 300x. : r/PSP
PSP 300x Teardown - iFixit
Amazon.com: for Sony PSP 3000 PSP 3004 3001 3008 300X Replacement Direction Cross Button Left Key Volume Right Keypad Flex Cable (Left Flex Cable) : Video Games
PSP 300x Teardown - iFixit
White PSP 300x : r/PSP
Amazon.com: for Sony PSP 3000 PSP 3004 3001 3008 300X Replacement Direction Cross Button Left Key Volume Right Keypad Flex Cable (Left + Right Flex Cable) : Video Games
For Psp 3000 Left Right Buttons Function Start Home Volume Pcb Keypad Flex Cable For Sony Psp 3000 / Psp 3004 3001 3008 300x - Accessories - AliExpress