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Service lnformation
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Please apply the following modifications in your service
M a n ua l
Po s . 4 1 2 - t he r ma l sw i tch g0 oC code nu mber
4822 282 40158 is changed into thermal switch
100oC codenumber 4822 A7g 10029.
Diode - D606a, b - |S20ZS code number
4822130 31026 is changed into tS2076A
codenumber 53ZZ 1gA g47g2.
Resistor R638a, b and R63ga, b - 1 kOtr (circuit
diagram) are safety resistors, code number
4822 111 30602
Resistor R405a, b - 10 kOtr is changed into 20 kOB.
Between base and collector of TSg01 a capacitor of
1 nF AAj is added.
Allgnment procedure
quiescent current
For adjusting the quiescent current, the voltage across
R634a, b is measured, and adjusted by R6g2a, b at a
v a l u e o f 1 2 m V t 2 m V .
Th e z e ro v o l ts a d j u s tm e nt i s to b e d on e w ith R 6 g1 a, b
instead of R692a, b.
F o r t he a l ig n m e nt o f th e p ow er i ndi ca tor s, th e in put -
signal level must be adjusted for 20 V rms output at
1 k Hz wi th n o l o ad .
How adjust R491a, b for 0 dB reading on the power
in d i c a to r .
C S 8 1 2 9 o
C o p y r : g n t r e s e r v e C . C c . n f r d e n t r a l i n f o r m a t r o n f o r S e r v r c e - d e a l e r s
P . r i t e d
i . r I h ê
l j e l h € . i : . d s
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