Service Manuals, User Guides, Schematic Diagrams or docs for : DENON Integrated Stereo Amplifier Integrated Stereo Amplifier Denon - PMA-630 Схема PMA-630
<< Back | HomeMost service manuals and schematics are PDF files, so You will need Adobre Acrobat Reader to view : Acrobat Download Some of the files are DjVu format. Readers and resources available here : DjVu Resources
For the compressed files, most common are zip and rar. Please, extract files with Your favorite compression software ( WinZip, WinRAR ... ) before viewing. If a document has multiple parts, You should download all, before extracting.
Good luck. Repair on Your own risk. Make sure You know what You are doing.
Image preview - the first page of the document
>> Download Схема PMA-630 documenatation <<
Text preview - extract from the document
I
I SYSTEM-A
I
I
rbr SYSTEM-B
R
S P E A K E RT E R M I N A L
1. S e t t h e s w i t c h e so f t h e s e t a s s p e c i f e d b e l o w .
i
1. S e t t h e S P E A K E R c h a n g e o v es w i t c h t o A S P E A K E R S Y S T E N 4 .
r
3. S e tt h eV O L U M E C O N T R O Lk n o b t o m i n i m u m .
3. T u r n t h e P O W E Rs w it c h o f f .
4. C o n fi r m t h a t a U - s h a p e d h o r t c i r c u i t i n g i n i s i n s e r t e d e t w e e nt h e O U T P U T t e r m i n a lo f t h e p r e a m p l i f i e a n d I N P U T
s p b r
t e r m i n a lo f t h e m a i n a m p l i f i e r .
21. C o n n e c ta D C v o l t m e t e rt o t h e A S P E A K E R t e r m i n a l .( f o r b o t h t h e L - a n d R - c h a n n e l s )
2. C o n n e c tt h e D C v o l t m e t e r o t h e t e s t p o i n t s 1 8 , 1 9 , 2 0 a n d 2 1 o n P U X - 0 2 ' l ( p o w e r a m p l i f i e r p r i n t e d b o a r d ) ( f o r b o t h
t ,
L - a n d R - c h a n n e l s ) . h e v o l t a g ep o l a r i t i e s f t h e t e s t p o i n t w i l l b e + f o r 2 0 o f t h e L - c h a n n e l-, f o r 2 1 , a n d - f o r 1 8 o f
T o
the R channel nd + for 19.
a
:l 1 W i t h t h e S l i d u c k s e t t o 0 V , t u r n o n t h e s e t ' sP O W E R s w i . t c h .
2. W l r r l e k e e p i n g a n e y e o n t h e D C v o l t m e t e r , r i s e t h e A C p o w e r s u p p l y b y m e a n so f t h e S l i d u c k f r o m 0 V t o R a t e d V .
T h e n , c a r r y o u t t h e p r e l i m i n a r y a d j u s t m e n t s e s c r i b e d n s t e p s3 t h r o u g h 5 i n a s w i f t m a n n e r .
d i
3. A d i u s t V R 3 ( L - c h a n n e l a n d V R 4 ( R - c h a n n e l l)o c a t e do n P U X - 0 2 1 ( p o w e r a m p l i f i e rc i r c u i t b o a r d ) s o a s t o b r i n gt h e
)
s p e a k e o u t p u t v o l t a g e o t h e r a n g ew i t h i n 0 V t 1 0 m V .
r t
4. P u l l o u t t h e U - s h a p e ds h o r t c i r c u i t i n g i n i n s e r t e db e t w e e nt h e O U T P U T t e r m i n a l o f t h e p r e a m p l i f i e r n d I N P U T
p a
t e r m i n a lo f t h e m a i n a m p l i f i e r .
A d j u s t V R 1 ( L - c h a n n e l a n d V R 2 ( R - c h a n n e l o n P U X - 0 2 1 ( p o w e ra m p l i f i e rp r i n t e db o a r d )s o a s t o b r i n g t h e s p e a k e r
) )
o u t p u t v o l t a g et o t h e r a n g ew i t h i n 0 V I 10 mV.
5 . I n s e r tt h e U - s h a p e d h o r t c i r c u i t i n g i n b e t w e e nt h e O U T P U T t e r m i n a lo f t h e p r e a m p l i f i e a n d I N P U T t e r m i n a lo f t h e
s p r
m a i na m p l i f i e r .
A d j u s t V R 5 ( L - c h a n n e l a n d V R 6 ( R - c h a n n e l l)o c a t e do n P U X - 0 2 1 ( p o w e r a m p l i f i e rp r i n t e db o a r d )s o a s t o b r i n gt h e
)
v o l t a g e t t e s t p o i n t s1 8 , 1 9 , 2 0 a n d 2 1 ] | o 1 2 m V ( 1 0 , ' 1 4 m V ) ( C o l l e c t ocru r r e n t : 2 6m A ( 2 2 - 3 0 m A ) ) .
a t
A1
A f t e r c o m p l e t i n g t h e p r e l i m i n a r ya d j u s t m e n t st,h e f o l l o w i n g m a i n a d j u s t m e n t a r e t o b e c a r r i e do u t , b u t o n l y a f t e r
s
a g i n go f 1 5 m i n u t e sh a s t a k e n p l a c ef o l l o w i n gc o m p l e t i o n f t h e p r e l i m i n a r y d j u s t m e n t s .
o a
2 . A g a i n , a d j u s t V R 3 ( L - c h a n n e l ) n d V R 4 ( R - c h a n n e ls o a s t o b r i n g t h e s p e a k e r e r m i n a l v o l t a g e t o t h e r a n g e i t h i n
a ) t w
0V110mV.
P u l l o u t t h e U - s h a p e d h o r t c i r c u i t i n g i n i n s e r t e db e t w e e ni n O U T P U T t e r m i n a lo f t h e p r e a m p l i f i e a n d I N P U T e r -
s p r t
m i n a lo f t h e m a i na m p l i f i e r .
A d j u s t V R ' l ( L - c h a n n e l ) n d V R 2 ( R - c h a n n e l i)n a m a n n e r t o b r i n g t h e s p e a k e o u t p u t v o l t a g et o t h e r a n g e i t h i n
a r w
0Vt10mV.
W i t h t h i s , a l l n e c e s s a ra d j u s t m e n t so r t h e s p e a k e t e r m i n a lv o l t a g e a v eb e e nc o m p l e t e d .
y f r h
I n s e r tt h e U ' s h a p e d h o r t c i r c u i t i n g i n b e t w e e nt h e O U T P U T t e r m i n a lo f t h e p r e a m p l i f i e a n d t h e I N P U T t e r m i n a lo l
s p r
t h e m a i na m o l i f i e r .
A g a i n ,a d j u s tV R 5 ( L - c h a n n e l ) a nV R 6 ( R - c h a n n e l ) s o t o b r i n gt h e t e s tp o i n t v o l t a g e tso t h e r a n g e i t h i n 1 7 1 1 m V
d as w
( C o l l e c t o r u r r e n t :3 6 r n A t 2 m A ) .
c
W i t h t h i s , a l l n e c e s s a ra d j u s t m e n t so r t h e i d l i n gc u r r e n th a v eb e e nc o r n p l e t e d .
y f
C A U T I O N : P a r t i c u l a r t t e n t i o n s h o u l d b e p a r d t o t h e s u b r a d i a t o s e c t i o no f P U X - 0 2 1( p o w e r a m p l i f i e rp r i n t e d b o a r d )a s a
a r
v o l t a g e f a p p r o x i m a t e l y5 0 V i s b e i n ga p p l i e dt o t h a t s e c t i o n .
o
; 14A,r":o *
oF'Asc + bt'tc
-2-
""L;u9l wu* 9
.: rLrMrN,o
\
' . - c L i, ; ;- i / . .\ \ O U i . : M p
Ll,.(f _r
l\-,^--.-.'y--
_ . 1 \; , l R .
i5;5'71;..- Ft,2.:SCZZ5q(CTR16:l'
) I'i,l&-orGR)TRqrlo:2SAq?O(81) TRBllrt:2SC?ll(F) $qE'rsc3338gl
-..r)_q.-
'-.:!- *nr.a?SAq7q(Fi T F 7 . a' ' ?.':,LdGR) T R l t , 1 2 : 2 5 C 2 2 4 O ( B LT R l 3 ' 1 6 : 2 $ 9 3 3 f l ! 4 i ! TRlq'2O:zsLq68(Y)
) IRr!f1!!9!!:!El i
'-
'!
t=t
8lHs
0t3
R wO6
TRI3
9d
= 0r5
RwO6
'.-
r:.
t
I li
? '
l- ;' I t.:
i+- I | ["=
: !'):
t
.i<.
.':-- i -
iB .rr-'t., I
._1,/
c2? 0.0r..500r
.-^. .-.+-1
-
I ).4i _
- 55,4v
c _-'l'-:
-".rlv I1
-5'o5v T R 2 4r -
.".\ I
r -'."'I
* -+- --'
(;
T
H,!.J.K,LMIN,O,
P O W E R M PU N I T P U X _ 0 2 B )
A (
I 2220aI}OO0r
i&34cr31319 rRq,t0:2SAq70(8L) TRB,|4:2SC?lt(F)
TR5,6:2SC2240(&-o(GRl IRq16:2SC2238(yl
TR3r4:254q7q1p1 TRtS:Z51q7q19Lof6*t TRtl,t2:2SC2240(BL] TRt3,t6:zSAq33(RorSt TRtq,20:2SAg68(y] TR23,24:2S853qC(S)'
+<
lo9
9x
015
-56.4v
I -5G5v
I -30. -4q.6
-Ltr
-O.n35r
cr8 l
t-{F
rs
-{
t\i l6
'I
tlt
lr +GsqY TR22
1
il
1l
il
131
,ll
+50.1
r
c
c!
+51.7v
J
I
I
I
,*j +5?Y
lr
rl
I
◦ Jabse Service Manual Search 2024 ◦ Jabse Pravopis ◦ onTap.bg ◦ Other service manual resources online : Fixya ◦ eServiceinfo