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475 Where is the transistor 3984?

Javier Alberola All Messages By This Member #87817 Hi, I'm trying to repair a 475 following the procedure in the manual. In the page 4-16, paragraph "sweep and logic", step 2, the manual says to "check the collector of (3984". Is this an errata, and it should be Q984? The previous test are OK, after changing a damaged capacitor with a huge dielectric absorption ? (thank you, Tom Miller) Thanks in advance.
David Hess Member Profile All Messages By This Member #87818 Neither of my 475 manuals have a page 4-16. I did not find the section of the manual you are referring to. On Mon, 18 Feb 2013 22:30:06 +0100, Javier Alberola <javier.alberola.perales@...> wrote: Hi, I'm trying to repair a 475 following the procedure in the manual. In the page 4-16, paragraph "sweep and logic", step 2, the manual says to "check the collector of (3984". Is this an errata, and it should be Q984? The previous test are OK, after changing a damaged capacitor with a huge dielectric absorption (thank you, Tom Miller) Thanks in advance.
Tom Jobe #87820 开云体育 Hi, In an original paper?high S/N 475 manual (B250000 and up)?it only says Q984 on page 4-16 in step 2. There is?no mention of a Q3984. tom jobe... ? ? ? toggle quoted message Show quoted text ----- Original Message ----- From: Javier Alberola To: TekScopes@... Sent: Monday, February 18, 2013 1:30 PM Subject: [TekScopes] 475 Where is the transistor 3984? ? Hi, I'm trying to repair a 475 following the procedure in the manual. In the page 4-16, paragraph "sweep and logic", step 2, the manual says to "check the collector of (3984". Is this an errata, and it should be Q984? The previous test are OK, after changing a damaged capacitor with a huge dielectric absorption ? (thank you, Tom Miller) Thanks in advance.
raymonddompfrank #87821 My manual, for SN B250000 and up, does in fact say "check the collector of Q984", so you're right. Raymond toggle quoted message Show quoted text --- In TekScopes@..., Javier Alberola <javier.alberola.perales@...> wrote: Hi, I'm trying to repair a 475 following the procedure in the manual. In the page 4-16, paragraph "sweep and logic", step 2, the manual says to "check the collector of (3984". Is this an errata, and it should be Q984? The previous test are OK, after changing a damaged capacitor with a huge dielectric absorption (thank you, Tom Miller) Thanks in advance.
Javier Alberola All Messages By This Member #87882 Thank you! At this point the voltages are not OK, so I'll start to study the circuit.? toggle quoted message Show quoted text El 18/02/2013, a las 23:07, raymonddompfrank escribió: ? My manual, for SN B250000 and up, does in fact say "check the collector of Q984", so you're right. Raymond --- In TekScopes@..., Javier Alberola wrote: > > Hi, > > I'm trying to repair a 475 following the procedure in the manual. In the page 4-16, paragraph "sweep and logic", step 2, the manual says to "check the collector of (3984". Is this an errata, and it should be Q984? > > The previous test are OK, after changing a damaged capacitor with a huge dielectric absorption (thank you, Tom Miller) > > Thanks in advance. > > >

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