uher VG8226 User manual

VG82
STEREO
INTEGRATED
AMPLIFIER
De:
CONTENTS
SPECIFIGATIONS
3.05
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BLOCK
DIAGRAM
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Greta
Sta
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Tele’
2
METER
ADIUSE
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ois
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Seta
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Mand
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2
AG
wig
atk
WALES
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ape
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Baiada
sete
2
DISASSEMBLY:
cas
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Gnade
Si
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GE
aa
aha
ese
Sse
ates
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BOARD.
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else
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MSMR
Aye
Pate
Jetd
lasaeh
Game
dve
atardoe
guar
ten
aie
Ae
SOY,
CIRCUIT
DIAGRAM
..............0.0
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ip
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ans
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aya
Sy
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Sa
ndads
Bat
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8,9
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LIST
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10,11

et
VG826
|
SPECIFICATIONS
AUDIO SECTION
Sensitivity
Input: 100Hz
Phono(MM){at
Rec
out)...
...
2.5mV/50kQ/100pF
POX.
oc
cbstcee
geet
databey
OI
ek
150mV/50k2/82pF
Tape
monitor.............
150mV/50k22/82pF
Sensitivity
channel
difference
...
+2dB
Headphone output
Input:
1000Hz
*
Phono
2.5mV
Aux
150mV
....
500mV/8Q
Output:
At
speaker
output
32W
Rec. output
Input: 1000Hz
Phono
2.5mV
Aux
150mV
....
150mV/100kQ
(At speaker output with
Volume: 3.2W)
IM Distortion factor
Input:
Aux
70Hz:
7000Hz/4:1
Output:
26W
(40.7Vp-p)
.....
0.08%
Output power
Sinus power (1kHz)
at8Q21%THD
............
38W
at4Q1%THD
............
44w
Music
power
at82.10%THD
...........
81W
at4922.10%THD
...........
132W
F.T.C.
power
(20-20000Hz)
at
82.
0.08%THD
..........
32W
Frequency response
Input:
Aux.
Tape
monitor
Output:
1000Hz
32W
—6dB
from
Volume
max.
+3dB
.....
10
—
35,000Hz
Phono
mag
equalizer
response
Input: Phono
Output:
RIAA+1.0dB
......
30
—
20,000Hz
Tone
control
action
Input: Aux
Output: 1000Hz 0.775V
Boost:
100/10000Hz........
+8.5dB
Cut:
100/10000Hz
.........
-8.5dB
Loudness
control
action
Input:
Aux
150mV
(1kHz)
Output:
—30dB
Att.
from
Volume
max.
(Loudness
switch:
on)
VOOH2
i265
es,
tc
gonds
debe
bs
+6dB
10000Hz................
+8dB
Maximum input signal
Input: 1000Hz
Output:
3.2W
(with
Volume)
Phono
.................
130mV
BUX
oe
oo
Ca
Amen
n
4.0V
Tape
monitor.............
4.0V
High filter action
Input: Aux 150mV
Output:
32W
—6dB
from
Volume
max.
(Hi-filter
switch:
on)
....
—3dB
Signal
to
noise
ratio
(IHF-A
Network)
Phono Input: 5mV
Output:
Recout
.....
80dB
Aux:
Inputshort.........
92dB
Tape
monitor:
Input
short
..
..
92dB
Residual
noise
.............
0.5mV
Damping factor
Input: Aux 1000Hz
Output:
3.2W
...
0.0.0.0.
50
—
Volume
control
tracking
error...
4dB
Input: Aux
Output:
3W
at
Volume
max.
—40dB
Crosstalk
Output:
3.2W
(with
Volume)
Aux: Input 150mV
1000Hz
............
65dB
20kHz
............,
33dB
Phono
Input/2.5mV
1000Hz............,
55cB
Output
level
difference
.......
3dB
Input:
1000Hz
Aux:
150mV
Phono:
2.5mV
Output:
10’clock
position
of
volume
control
GENERAL
Maximum
power
consumption
.
250W
AC
power
supply
..........
220V
50Hz
Weight
and
Dimensions
(Approx.)
Net
weight
..........0.,
4.2kg
Gross
weight
...........,
5.2kg
Dimension
(W/H/D)
.......
422/77/238mm
Specifications
and
design
are
subject
to
change
without
notice.

BLOCK DIAGRAM
EXTE
PHONO
TUNER
TAPE 1
PHONO
[e)
ce)
°
R ch fe)
oO
ie)
12)
METER ADJUST
TO EQ AMP
| VG826 2
BLOCK DIAGRAM MODEL VG 826
TO FUNCTION SW
PHONO
TUNER
AUX
TAPE 1
TAPE 2
FUNCTION INDICATOR
RNAL SELECT
ASS SELECT
SPEAKER
TERMINAL
o————_© SYSTEM A
O
MAIN AMP
o—————-© SYSTEM 8
HEAD PHONE
MONO BALANCE LOUDNESS H.FILTER TONE CONTROL
VOLUME
Same as Left channed. —-
TO ASS CONTROL TO MAIN AMP
[L
_Output indicator indigater Adjustor Adjust for
Connection Connection
, SIGNAL LEVEL
VTVM and
1 AUX 4Q Dummy Input level 7W
S.P. OUT
+ Z
SVR701 5th segments
2 SAME AS STEP (1) | SIGNAL METER SVR702 L just light up

oD VG826
DISASSEMBLY
1.
CABINET
COVER
REMOVAL
a,
Remove
four
screws
from
both
sides
of
the
cabinet
i
cover,
b,
Remove
a
screw
from
the
rear
of
the
cabinet
cover.
c.
Lift
the
cabinet
cover
away
from
the
unit.
2.BOTTOM
PLATE
REMOVEL
f
a.
Remove
11
screws
(#1~#11)
from
the
bottom
plate,
:
13
12
8 9
3.
POWER
TRANSFORMER
REMOVEL
a.
De-solder
all
the
leads
of
power
transformer
from
the
PCBs.
b.
Remove
2
screws
(#12
&
#13).
c.
Lift
the
power
transformer.
10

| VG826 45 VG826
METER DRIVER P.C. BOARD FUNCTION SELECT P.C. BOARD.
Uch Reh
: Bryon TAPE 1 LED
: cs o TAPE 2LED
Be Be r s E«) PHONO LED
TUNER LED
minathinn,
a
ar
=
>
nis
AUX
LED GNO
ae
a
meg
TE
sy
— a : - a OLE =
pen ee FUNC. SELECT
L Hei TAPE 1 SELECT
TAPE
2
LED
TAPE
2
SELECT
TAPE 1 LED AUX SELECT
es TUNER SELECT
_ PHONO SELECT
ee en tt eee ee
FUNCTION OUT Rch
FUNCTION OUT Lch
1345
FUNC.
POWER
IND.
P.C.
BOARD
__ CPOE _CPRRO") TONER 3
S.P. TERMINAL P.C. BOARD H.P. P.C. BOARD ce? possi GP xs cai
SPEAKER
TERMINAL
Lech OUT
GND
RchOuT
A.S.S.JACKS P.C. BOARD POWER SW. P.C. BOARD
HVE €-dS
GND
TAPE 1 ASS INPUT
TUNER ASS INPUT
NON CONECTED
PHONO ASS INPUT
a Tene |

VG826
VG826
MAIN P.C. BOARD
PHONO.
TUNER
oie esi
wae
AUX LED
TUNER LED
PHONO LED
TAPE 2LED
Si TAPE I LED
TAPE
2
Lch
PHONO
SELECT
TAPE
2
Rch
TUNER
SELECT
REC
2
Rch
AUX
SELECT
REC
2Lch
TAPE
2
SELECT
AUX
Lech
TAPE
|
SELECT
AUX
Rch
FUNC.
SELECT
REC
I
Lch
Gq
'Reh
GND
Lch OUT
Reh OUT
| eee et ence ee
~34.5V
GND
FUNCTION
COMMO
Leh
FUNCTION
COMMON
Rch
P.T. Secondary
GND
SystemB
OUTPUT
Lch
eho
SystemA
OUTPUT
Lch
aa
OUTPUT
Rch
PO
aS
ee
ee
er
ey
0)
SystemB
OUTPUT
Rch

CIRCUIT Di
A907
[Feat e ay ae
2 GQ (OFF ON)
as
VG826 VG826
AGRAM
FUNCTION INDICATOR
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TAPE OUBBING
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|
1815553
R908 1, na06 D901~ 909
150K[
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150K
8
PHONO
TUNER
AUX
TAPE2
TAPE
1
50V0.22
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wna
08442 OR 1S1565R901
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PHONO | 5442 BRISISAS, aie R920 560K :
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TUNER
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TONE
BLOCK
R993 R993
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|
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C704
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POWER SUPPLY BLOCK
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ECQU2A 103MF
Ort
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TERMINAL A
Ore
0605 , 606
2SC536(E.Fs
206
9g
An
R301 C301
SPK
SW
AIOFF-ON)
6
-
roy 579 aesae
C823 223K
oh <n O-
SPK SW 8 | OFF-ON) C-
S00 95900 O+k
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STK465
C108 562) Cis 182) R801
220 1” HEAD PHONE OUTPUT
fe eel
ae
R802
220 Ww
AC 220¥/50Hz

VG826
ve826
PARTS LIST
HES50SJSL820K
Ceramic capacitor
C303, 304
Part
No.
Description
Symbol
No.
Symbol
No.
O'ty
Part
No.
Description
Symbo!
No.
Description
2SA722-R,S,T
Transistor
Q601,
602
2
208
HE7OSJYF103Z
|
Ceramic
capacitor
C819~822
4
N42883
Fittings
(P.T.)
2
2S8C1398-0,R
Transistor
Q701
1
KA25ST222J
Carbon
resistor
R101,
102,
307,
4
HE9QOSJYF223Z
|
Ceramic
capacitor
C493,
823,
824
3
N30618-BK
Heat
sink
Power
!C
1
2SC536-E,
F
Transistor
Q603,
604,
605,
4
308
H11SEYF223Z
Ceramic
capacitor
C409,
410,
491,
4
N42471
Heat
sink
Regulator
1
:
606
KA2S5ST224J
Carbon
resistor
R610
1
:
492
N43433
Shield
paper
1
DS442
Diode
|
D602
1
KA25ST272J
Carbon
resistor
R714
1
:
ECQU2A103MF
|
Metallized
film
Csoo
1
N43101
PCB
cover
PW-452
1
W2Z115
|
Diode
|
ZD701
1
KA25S8T273J
Carbon
resistor
R727,
728
2
!
capacitor
N43499
Insulation
sheet
1
XZ0O70
Diode
2D991
1
KA25ST331J
Carbon
resistor
R701~710
10
;
ACC-005
Line
cord
AC801
1
N43463
Universal
spacer
12
XZ088
Diode
2D401~404
4
KA25ST332J
Carbon
resistor
R904,
905,
993,
4
‘
SR-3P-4
Cord
stopper
1
N43114
Shipping
carton
1
XZ100
|
Diode
ZD901,
902,
992
3
994
i
N10246-1
Front
panel
1
N20890A
Packing
pad
R
1
181555
Diode
D901~903,911~
|
9
KA25ST334J
Carbon
resistor
R609
1
hs
N43165
Display
window
1
N20891A
Packing
pad
L
1
913,
991~993
KA25ST433J
Carbon
resistor
R111,112
2
£
N43055-GY
Knob
ring
Volume
1
N41318
Potyethylen
bag
1
GP30D-L
Diode
D401~404
4
KA25ST471J
Carbon
resistor
R113,114
2
bi
N43239
ASS
badge
1
(unit)
1N4002
Diode
D405,
601,
604,
4
KA25ST472J
Carbon
resistor
R211,
212,
407
3
‘
N20974-1-BR
Cabinet
1
N40487
Polyethylene
bag
1
994
KA25ST473J
Carbon
resistor
R115,116
2
*
N20850A
Bottom
board
1
(accessories)
GL105N51
LED
LD701,
706
2
KA25ST514J
Carbon
resistor
R109,
110
2
:
NO.7102B
Foot
4
N41853-162
Label,
fuse
1
GLOPR33
LED
LD401~406,711,
|
8
KA25ST561J
Carbon
resistor
R209,
210
2
:
N21013
Rear
panel
1
N41853-202
Label,
fuse
2
712
KA25ST562J
Carbon
resistor
R213,
214,
408~
7
N43018-BR
Knob
38
Volume
1
N41853-312
Label,
fuse
2
BA6124
Ic
1C702,
703
2
411,601
N43019-BR
Knob
31
Bass,
treble,
balance|
3
N43160
Label,
serial
number
2
NJM4560DX
Ic
1C101
1
KA25ST563J
Carbon
resistor
R281,
282
2
|
N43017-AS-BR
Push
button
ASS
1
OM-373
Instruction
manual
1
STK465
Ic
1C301
1
KA25ST564J
Carbon
resistor
R914,916,918~
|
6
}
N43017-AU-BR
|
Push
button
AUX
1
FT-002
FTZ
sheet
1
TA7318P
Ic
1C701
1
920,922
:
N43017-BR
Push
button
Power
1
C-006
Circuit
diagram
1
‘TC9145P
Ic
1C901,
902
2
KA25ST681J
Carbon
resistor
R303,
304
2
N43017-DU-BR_
|
Push
button
Dubbing
1
TBB+30X08-Y
Tap
screw
B,
5
EWK8CA018B15
|
Rotary
potentiometer]
VR602
1
KA25ST683J
Carbon
resistor
R602
1
N43017-HF-BR
|
Push
button
|
H.
filter
1
bind
head,
Y
EWGG0A013C15
|
Potentiometer
VR603,
604
2
KA25ST820J
Carbon
resistor
R729,
730
2
N43017-LD-BR
|
Push
button
Loudness
1
TCB+40X10-N
Tap
screw
C,
12
EWHH4A507G55
|
Potentiometer
VR601
1
KA25ST822J
Carbon
resistor
R603
1
N43017-MO-BR
|
Push
button
Mono
1
bind
head,
N
ESB827S
Power
switch
swe01
1
KA25ST823J
Carbon
resistor
R205,
206
2
N43017-PH-BR_
|
Push
button
Phono
1
TPM+30X08-N
Tap
screw
P,
18
ESB62358
Push
switch
Function
1
KA50ST182J
Carbon
resistor
R405,
406
2
f
N43017-SA-BR
Push
button
SPA
1
round
head,
N
SW-1601109
Push
switch
H.
filter~ASS
1
KAS0ST271J
Carbon
resistor
R401~404
4
N43017-SB-BR_
|
Push
button
SPB
1
|
|
TPS+30x08-N
Tap
screw
P,
3
AJC-002-AAB
RCA
jack
4P
2
KA508T272J
Carbon
resistor
R996
1
;
N43017-TU-BR
Push
button
Tuner
1
flat
head,
N
,
AJC-003-AAB
RCA
jack
6P
1
KA50ST8R2J
Carbon
resistor
‘
R305,
306
2
;
N43017-T1-BR
Push
button
Tape
1 1
TSA+30X14-Y
Tap
screw
S,
2
HLJO307-01-020
|
HP.
jack
HP807
1
SA-1WT221J
Metal
oxide
resitor
|
R801,
802
2
;
N43017-T2-BR
Push
button
Tape
2
1
{for
power
IC)
HSJO780-01-010
|
ASS
jack
3
SVR-08T3B102
|
Semi-variable
resistor
|
SVR701,
702
2
N30574B
Side
chassis
R
1
TSB+30X06-N
Tap
screw
S,
11
’
FUH-002
Fuse
holder
4
LUB1H682MHS
|
Electrolytic
capacitor
|
C401,
402
2
N30649
Side
chassis
L
1
bind
head,
N
PT-SO8P12
Socket
8P
(S.P.)
1
LL-25TW4R7M
Low
leak.
C101,
102,111,
4
N20914B
Support
chassis
(P.T.)
1
TSB+30X06-Y
Tap
screw
S,
7
NPT-1125S
Power
transformer
PT801
1
electrolytic
capacitor
|
112
N43437
Spacer
12
bind
head,
Y
FU521628T
Fuse
F801
1
LL-35TW100M
Low
leak,
C211~214
4
N42780
Shield
plate
Bass,
treble,balance}
1
TSC+30X08-N
Tap
screw
S,
13
FU-522027T
Fuse
F301,
302
2
electrolytic
capacitor
N42781
Shield
plate
Volume
1
washer
faced,
N
FU523127T
Fuse
F401,
402
2
LL-SO0TW1ROM
Low
leak,
C301,
302
2
N43343
Shield
cover
SP
A,SP
B
1
2AWX0830-05-N
|
Plain
washer,
N
1
RP-001
Terminal
pin
TP101,
301,302,
|
4
electrolytic
capacitor
N43058
Fittings
1
2AWX1040-08-N
|
Plain
washer,
N
4
303
MS-10TW101M
Electrolytic
capacitor
|
C109,
110
2
(Headphone
jack)
2AE-03
Solder
lug
4
163740-2
Zip
strip
1
MS-16TW100M
Electrolytic
capacitor
|
C705,
706
2
N43206
Switch
holder
1
2AE-32
Bind
iug
1
163740-3
Zip
strip
2
MS-16TW101M
Electrolytic
capacitor
|
C313,
314,
703
3
N42849
Fittings
R
(Heat
sink)
59BS1692
GND
lug
1
UB-0027
Terminal
(GND.)
1
MS-16TW470M
Electrolytic
capacitor
|
C912,913
2
N43073
Fittings
L
(Heat
sink)
PC-012
RCA
pin
coad
ass’y
3
MS-25TW101M
Electrolytic
capacitor
|
C411
,412
2
HP-452
Printed
circuit
board
1
MS-25TW471M
Electrolytic
capacitor
C407,
408
2
M-452
Printed
circuit
board
1
MS-35TW221M
Electrolytic
capacitor
C405,
406
2
MAS-452
Printed
circuit
board
1
MS-50TWR22M
Electrolytic
capacitor
|
C911
,991
2
MD-463
Printed
circuit
board
1
MS-5OTWR47M
Electrolytic
capacitor
|
C704
1
MF-452
Printed
circuit
board
1
MS-50TW1ROM
Electrolytic
capacitor
|
C606,
701
,
702,
6
MI452
Printed
circuit
board
1
907~909
M1463
Printed
circuit
board
1
MS-SOTWT00M
Electrolytic
capacitor
C403,
404,
603,
4
MT-419
Printed
circuit
board
1
607
MV-452
Printed
circuit
board
1
MS-50TW101M
Electrolytic
capacitor
|
C311,608
2
P{-452
Printed
circuit
board
1
MS-50TW4R7M
Electrolytic
capacitor
|
C601
,
602
2
PW-452
Printed
circuit
board
1
MS-50TW470M
Electrolytic
capacitor
C307,
308,
604
3
SP-452
Printed
circuit
board
1
MY-50VS102J
Mylar
capacitor
C507,
507,
508,
4
KA25ST101J
Carbon
resistor
R315
1
508
KA25ST102J
Carbon
resistor
R107,
108,
301,
20
MY-50VS104J
Mylar
capacitor
C203,
204
2
302,
309,
310,
MY-50VS182J
Mylar
capacitor
C113,114
2
715~724,
901~
MY-50VS2225
Mylar
capacitor
C207,
208
,
2
903,
995
MY-50VS223J
Mylar
capacitor
C201,
202,
209,
4
KA25ST103J
Carbon
resistor
R604,
605,
611,
5
210
725,
726
MY-50VS272J
Mylar
capacitor
C215,
216
KA25ST104J
Carbon
resistor
R103~106,
608
-
5
MY-450VS393J
Mylar
capacitor
C205,
206,
505,
KA25ST105J
Carbon
resistor
R606,
607,
731,
-
4
506
732
MY
-50VS472M
Mylar
capacitor
C707,
708
KA25ST121J
Carbon
resistor
R711~713,
733
4
MY-50VS473M
Mylar
capacitor
C309,
310,
803,
KA25ST123J
Carbon
resistor
R201,
202
2
804
KA25ST124J
Carbon
resistor
R915,917,921
3
MY
-50VS562J
Mylar
capacitor
C107,
108
KA25ST153J
Carbon
resistor
R503,
504
2
HE40SJSLO90D
Ceramic
capacitor
C305,
306
KA25S8T154J
Carbon
resistor
R313,
314,
906~
10
HE40SJYB101K
|
Ceramic
capacitor
C103,
104,
810~
913
817
KA25ST182J
Carbon
resistor
R203,
204,
207,
4
HE40SJYB221K
|
Ceramic
capacitor
C105,
106
SM-373 8210