Need a service manual for SANSUI T-909

[quickboy]

I have had this tuner working for last 20+ years, SOme problems have cropped up, Found one crystal with corroded feet, 7.2 mhz, changed the crystal Now MW works fine and FM has some problems, THe stations are available but the lock indicator light dont come up, It does for MW, Well I will be thankful if someone can get me a copy of the service manual for this tuner,

Model SANSUI T-909