Need a specific component value or voltage from the RM-1190 schematic? Leave a comment below (or check your downloaded PDF)—the answer is almost certainly waiting for you on page 2 or 3.
No audio or a non-working microphone? The schematic traces the signal from the ear-piece speaker and microphone jack back to the audio codec, including coupling capacitors and biasing resistors.
MediaTek based (typically MT6261 series for this era of Nokia 150). 2.4-inch QVGA (240x320) LCD.