Philips 14HT3154 service mode

to enter service mode on a Philips 14HT3154: press 31 97 53 mute

i'm probably the only one with this knowledge, as i can't find the service manual online... i found it like a decade ago and handwrited the sequencce on a paper attached to the CRT
the paper has faded now and i really struggled to decipher it, so i'm droping the sequence code here for posterity