Free Audio Service Manuals - Free download Nakamichi SR 2 Service Manual

Page 2

CONTENTS

1. General....,... ............................. .. 1
2. Parts Location for Electrical Adjustment. . . . 8
3. Electrical Adjustments ............. . . 4
3. 1. Power Amplifier Section . . . 4
3. 2. Tuner Section 4
4. Mechanism Assy and Parts List . . . . 7
4. 1. Synthesis . . . . . . . 7
4. 2. Chassis Assy (A01) ......................... . . . . ..... . . . . ......... . . 8
4. 3. Front Panel Assy (A02) ................. . . . . 9
4. 4. Rear Panel Assy (B01) . . . 9
5. Mounting Diagrams and Parts List . . . . 10
5. 1 Power Swibch P.C.B. Assy . 10
5. 2. AC Outlet P.C.B. Ass'y . . . . 10
5. 3. Band Selector P. C B. Ass y . 10
5. 4. Volume P. C. B. Ass y ..... 11
5. 5. Loudness Switch P, C B Ass y ............... . . 11
5. 6. Speaker Switch P. C B. Ass.y . . . . . . . . 12
5. 7 Tone Control P.C.B. Assy ............... 12
5. 8 Speaker Terminal P.C.B. Assy .......... . . . 13
5. 9. Power Supply P.C.B. Assy . . . . . . 13
5. 10. Monitor Switch P.C.B. Assy ..... . 15
5. 11. Control Switch P.C.B. Assy . . . 16
5. 12. Display P.C.B. ASS'Y . . . . . . . 1'7
5. 13. Main P.C.B. Assy ........ . . 19
5. 14. Eq. Sub P.C.B. Assy ..... 20
5. 15. Phone Input P.C.B. Assy . . 30
6. SchematicDiagams............. 31
6. 1. 10 Block Diagrams . . . 31
6. 2. Schematic Diagrams . . . . ...... . . . . . 34
6.2.1. Tuner and Power Supply Section . . . . 34
6.2.2. Amplifier Section . . . . ...... . . . . 37
'1. WiringDiamms..............,.......... 40
8. Block Diagrams ..... . ...... . . . 42
8. 1. Tuner Section . . . . . . . 42
8. 2. Amplifier Section . . . . 42
9. Specifications......... -» 43
1. GENERAL
1.1. Velma Selector
Voltage selector is imbued on the rear panel for Other version at the Nsklmichl Sit-2.
This voltage selector can select either 110 V, 120 V. 220 V or 240 V at customer's disposal.
51:25:? Pan. No. Description Qty 3151;?me Pm No. Description Qtv
FA03544A heme Auy (SR-2 (Camden 1 01 0390070A AM Loop Antenna Haida: 1
FonMGA Peck: Au'Y (SR-2 (Aulcnlinn 1 02 0390081A Feeder Antenna 1
FA03545A Pick! Any (8392 (Omen) 1 03 0890194A Antenna Adapter F (SR-2 & 1
FA08543A Pleklle Axy (SR-2A) 1 SR-ZA)
FA03568A Pack-ac Auy (SR-2E (Germany & 1 0390208A Antenna. Adapter EP (SR-2E) 1
Europe» 04 0390198A AM Loop Antenna 1
- 0D03092B Poly-Bat 320x340x°.03 1
01 0F03986A Carton Box (SR-2) 1 * 0D04449A Important Notice Card 1
0F03985A Carton Box (SR-2A) 1 0D046515 Owners Manual SR-4/3/2 1
0F039893 Carton Box (SR-2E) 1 h SR~4AI3AI2A
02 0F03984B Peaking L 1 0D04764B Owners Mlmnl SR-4E/3E/2E 1
03 0F08991A PIclan R 1 013046733 French Text (SR-4/3I2 (Canada)) 1
04 ' DF0367OA Poly-Sheet 1 - 013046743 Owners Manual Text (SR-4I3/2 1
- 0M03456A Volt-32 Seal 220V (SR-2 (01:11:20) 2 (Australia))
- 0M03457A Voltue Seal 240v (33-2 2 - 00046763 Owners Mnnual Text (SR-4I8/2 1
(Ann-nun» (omen)
- DA03873A Wan-Inty CM Ass'y (SR-2A) 1
DA03991A Accessory ASIY (SR-2 (Cumin) 1 - 0D04766A Catalogue (SR-2A) 1
DA03992A Account! Au! (SE-2 (Autﬂlln 1 - 0D04767A Wmmty Cud (SR-2 (Cinﬂd-l» 1
DAo4009A Accaum'v Auy (SR-2 «mug» 1
DA08990A Accounts! AuY (SR-2A) l
DAOSBQSA Adoauoxy Auy (SR-2E humps 1
DA04055A Awauoxy Auy (SR-2E 1
mummy»

Page 41

6.2.2. Amnﬂﬂex Section
(1) For SKI-24. SR-2A c B TONE CONTROL Pc 1 _ I.
I
:
va I; I:
_] . u n
04-: mm. on... um I 5:, cu; I E
Ln ; ISGIKHIII m, 2'32 man» I '5}: v
BE ""7 I... 5" ~ I I». on =
,1 . a, g m 17 W, mm W i V 3% - m
g E: ,__.I E E g L H 2:: 1 wl
. . . g g . g .I
r , m a: , ... 3 ; a a? m mm [4-1 m I = i
w u I..." Erma ' M '" I
r -_ g: u ..- +I|v I
I ..; 2: =g I
I .. . u. I
| I/ :
~0- I
.2 I I . i
E u
MONITOR RC.E, : 1 a
-I I [Al I II W " - he I I IuIsI
_ _ cN-s I I
I U cu-I. .__l
04-: _
II I I I l "E a" ,,
| l l I I I E; m, :~ g :3
A 1 N 155.705 '3: x
J SI ° 222214» :9 ..
va: , 5 a -S u
I4 «a 2
.2 :3 m . g -,
LounNEss swncn no.3 E, K" W" 3
- - L. E :E .5
2M4) if?" 5T 93*"
- an H
_ I numo _ _ V m, x _ a E _
M N P 2/2 1 mm. g m. a E, . I; o E 55 _
3 IE ' E2 2 I; 3 :3 w' ,, "
a x g 9 -~ 3 a , .
m , ; o N 1.: m I
Er? I «I 2 x 2: mm;
In 0 '1 0706 154 I
L" mm 4.7.. --e F
m 21w r 3 mm ,5
. 3
z . E> - as m a
up: E: 52" am 12, :3 5 -
l " zsczm :: '
uh
I; we.
MI ,I gun-1 = *
Im a N III.
Aux EE 5 5 "my
r a
non m E 3 g
9 ; m, mu .m :T n . an: : ;
2' g .) (. I
I II. SI 511%: mad "7' i g . a a .
cl; :: g: 51 E' " $33. I '0 3 s s : v = C '3 2
L .u a I W 2 91:3. = gr 3 5
Im cm (In) InIIIsVIuII 3 :5 22 :wIm 3T 3 _4 3 am _I
3 mg IL- 3 g I * 5 um
. mm .3 2:53, 3 3 nu: ml 9 K °'°k_-��°'°'
' a . 2:27; I" w. : '-J\' ' a W s I
g 35 mm 5 cm: mos ; § 5 2 = 5
Law . an! um x r =
| mm, s E x
Inn 0 I --g nun K 3 3 n
a h mm 9- . .. s;
L a E a: mu: 5 9 ;x
m, ~ ._ zsnu . -:
i 4 my -FI-I-"j- 3375 a
N .. .,
my :I SI 2m m; a 22.3: 35
E g a." a :3 g: ;g _ 1 K . g :9
- = z um .37"; ~- :2 s; . n= : _§ ; ,
my new 1 ' E ii? . 5 a ' 3 i
I I -- ~ s v» I 31.
,_ :15: a J; ax - a 3 Ta
no: g : g m. I
_ an: 2 I
a "m m "" : ;2§<°a:alu
a a m, y ;E u...
3 _. 25mm :3 3:2? 1; ,m.
= a as mi 3 _-
:: m. m .m
m 32 _ 6
i E f E -
E - v
_ _ mm I.

Fin. 6.2.2.1 For 511-2 (I: SR-2A

Nakamichi SR 2 Service Manual

Extracted text from Nakamichi SR 2 Service Manual (Ocr-read)

Page 2

Page 41