Kenwood VR 3080 Support Question
Kenwood VR 3080 Support Question
Find answers below for this question about Kenwood VR 3080 - Dolby Digital Receiver.Need a Kenwood VR 3080 manual? We have 1 online manual for this item!
Question posted by isshaahmed on December 23rd, 2011
Kenwood Vr 3080
my recever keep,s suhting down at meadum sound level. i,ve tryed reducing the input level, disconect...
Current Answers
Related Kenwood VR 3080 Manual Pages
Service Manual - Page 1
AUDIO VIDEO SURROUND RECEIVER
KRF-V7772D VR-3080
SERVICE MANUAL
© 1999-3/B51-5511-00 (K/K) 1841
Indicator (B12-0326-04)
Knob (K29-6855-03)
Indicator
Front glass
(B12-0333-04) (B10-2451-03)
Knob (K29-6855-03)
Panel * (A60-)
POWER ON/STANDBY
CLIP INDICATOR
DOLBY DIGITAL
A
DTS VOLUME
SPEAKERS B
MUTE DOWN
INPUT SELECTOR
DISPLAY MODE UP
PHONES...
Service Manual - Page 2
...the batteries and follow the instructions in this unless you experience a problem. 1. Turn the receiver off . 2. Use a pen or other thin-tipped object to press
the blue button... Power button for more than 1 second. (For Other Countries) 1. Plug it . KRF-V7772D/VR-3080
CONTENTS / ACCESSORIES
Contents
CONTENTS/ACCESSORIES/CAUTIONS 2 CONTROLS 3 DISASSEMBLY FOR REPAIR 4 BLOCK DIAGRAM 5 CIRCUIT...
Service Manual - Page 4
... 3
9 x5 9
· screw driver and the 2 hooks(!) then 12 remove the escutcheon(@).
9 5 x2 4 2
43
10
13
14 11
14 13 13
15
4
Fig. 3
KRF-V7772D/VR-3080
DISASSEMBLY FOR REPAIR
[Check the audio PCB(X09)]
1. Remove the 9 screws (1,2,3). 2. Remove the 2 under front glass(0, -), then 1
remove the front panel(=) from the sub
3
panel...
Service Manual - Page 5
...K1 Q8 RELAY DRIVER
AC OUTLET
VR-3080 KRF-V7772D KRF-V7772D/VR-3080
BLOCK DIAGRAM
5
(SIGNAL STAGE)
...
IC12,13
L6,R6
IC42 TONE
DIGITAL
IC3
DIR DAC A/C CONVERTER CS4226
IC56... 654
Q642
MONITOR OUT
(OSD)
Q623 Q621,622 V-MUTE
EACH INPUT C-TERMMNAL
(J TYPE)
IC67
S1 DETECTOR
u-COM
IC16 VOLUME
Q151,...IC71
DO DI
IC91
CK
ST
RST
FL
MI-COM
SYSTEM u-COM
IC72
X8 REMOTE CONTROL MI-COM
Q851,852...
Service Manual - Page 6
... lighted. KRF-V7772D/VR-3080
CIRCUIT DESCRIPTION
1.
When a set is set up
• POWER ON/OFF
: OFF
• VOLUME LEVEL
: -66dB
• AUDIO INPUT • SELECTOR : TUNER
• VIDEO INPUT • SELECTOR :...
: NORMAL/WIRED
• SUB WOOFER
: ON
• SW Re-Mix
: OFF
• INPUT LEVEL
: 0dB
• CH. All indicator tube (FL) and
6
CLIP INDICATOR LED are flashed....
Service Manual - Page 7
...
STEREO
VIDEO4
DSP
AV AUX
STEREO
PHONO
STEREO
MUTE
ATT OFF ON FM
DISPLAY MODE AUTO/STEREO MANUAL/MONO (DOLBY DIGITAL LED : OFF ON)
TONE (TUNED) +10 (light on) OFF (light off)
ARENA JAZZ CLUB
THEATER STADIUM CATHEDRAL TAPE2 OFF ON
INPUT LEVEL 0dB -3dB -6dB
(Press the key for 2 secs) ANALOG DIGITAL
IR RECEIVER A(ON) OFF
4.
Service Manual - Page 8
... DETECT
48 CODEC_AC3 I P.U. CODEC(CS4226) AC-3(DOLBY DIGITAL, DTS, MPEG DETECT
49
DSP_DTS I P.D. GND...INPUT 0 (FRONT PANEL)
45
REM1
I P.D. REMOTE CONTROLLER SIGNAL INPUT 1 (IR RECEIVER)
46 CODEC_CS I P.D.
DSP(YSS912), CODEC(CS4226)DATA IN VOLUME ENCODER INPUT...OUT S1 WIDE INPUT
31 VIDEO_MUTE O P.D. GND
58 CODEC_AUDIO I P.D. KRF-V7772D/VR-3080
CIRCUIT DESCRIPTION
4-2 ...
Service Manual - Page 9
...NJU7313,TC9162) STROBE
O P.D. FL DRIVER(uPD780204) DATA OUT
O P.D. CENTER,SURROUND SPEAKER RELAY
O P.D. PROTECTION VOLTAGE DETECT
I P.D. IR RECEIVER DISTINCTION(IR RECEIVER EXIST:H)
O P.D. INPUT ATTENUATOR -6dB
O P.D. SPEAKER A,B RELAY
O P.D. PROTECTION CURRENT DETECT
I
-
KRF-V7772D/VR-3080
CIRCUIT DESCRIPTION
Pin No. 66 67 68 69 70 71 72 73 74 75 76 77 78 79...
Service Manual - Page 10
KRF-V7772D/VR-3080
CIRCUIT DESCRIPTION
4-3 Circuit control (a) Selector IC
NJU7313AL(X09:IC4), NJU7312AL (X09:IC5) NJU7313AL
NJU7312AL *3
(1:H , 0:L)
PIN No.(Lch)
2 ...f f
01
CD2 /T A PE2 on
10
*2
0 01 0 00 00 11 1 00 000
*1: ANALOG INPUT or DIGITAL INPUT with except STEREO mode *2: DIGITAL INPUT with STEREO mode *3: CD2/TAPE2 MONITOR is set CD2 position and L2,R2(REC OUT of CD2/TAPE2) of ...
Service Manual - Page 12
...IN
IN
IN
DIGITAL IN VIDEO2 VIDEO3 VIDEO4
CD1
IRRECEIVER IROUT IRREPEATER
IN
LCD
OUT
DC12V 15mA REMOTE
SL16 TEXT
SYSTEM CONTROL
SL16 ...AG
(A)
FM SG
MPX
AG (C)
AC voltmeter Oscilloscope
Distortion meter
12
(B) KRF-V7772D/VR-3080
ADJUSTMENT
No. DC voltmeter between CN2 1
70dBf (ANT. input)
MONO 98.0MHz
L5 (X05-)
Minimum distortion
(a)
(C)
98.0MHz 1kHz,
3
DISTORTION...
Service Manual - Page 13
...
S2
WH15 ORG
AC110120V~ AC220240V~
VIDEO2
OPTICAL
DIGITAL IN
VIDEO3 VIDEO4
COAXIAL CD
MONITOR OUT
1
REC 2 OUT
VIDEO1
VIDEO
PLAY 3 IN
USED VR-3080
EXCEPT USED KRF-V7772D (M,Y) TYPE
1 CN5
...
7
V
V
1 CN1
7
J81
SYSTEM
CONTROL
XS8
S1
SYSTEM CONTROL SW
SL16
J82
SL16 TEXT
USED
VR-3080/
J85
IR REPEATER
KRF-V7772D(Y) TYPE
OUT
IR RECEIVER
J84
IN
DC12V 15mA
IR OUT
J83...
Service Manual - Page 15
...BOARD (Component side view)
DIGITAL IN
VIDEO1
1
SURROUND UNIT
VIDEO4 PLAY IN
VIDEO3 PLAY IN
VIDEO2 PLAY IN
PRE OUT CENTER
SUB WOOFER SURROUND FRONT
VIDEO3 VIDEO2
CD1
VIDEO4
PLAY IN
REC OUT
MONITOR OUT
SYSTEM
X08-2970-10 A/10 ...E96
62
DISPLAY MODE
S95
INPUT SELECTOR
S94
R918 D911 D910
C910
R917 C907
C900
INDICATION
50 51
DTS D902
81
80
D901 DOLBY DIGITAL
R936 R940
R937 R941
...
Service Manual - Page 18
... 2.5V
A15 A16
28
32
1
4.9V
C510 0.1
44 VDD
+5V +3.3V
VDD
VDD NC
D502
D501
+5V
DIGITAL
R43 47K
R44 47K C36 1000P R42 47K R40 47K R41 47K C37 1000P R70 3.3K
+5V
L54 1uH L53
+...87
RAMA0
0.8V 88
88
RAMWEN
4.9V 89
89
RAMOEN
90
VSS
3.3V 91
VDD2
VDD2
92
IC51
DSP (DTS,DOLBY DIGITAL PRO LOGIC 3ST.)
RAMA7
44
43 2.5V
RAMA8
43
42 2.5V
RAMA9
42
41 3.3V
VDD2
VDD2
+5V
40
VSS2...
Service Manual - Page 21
...
Q356 R386 470
C392 100P
C391 100P
5 CENTER
6
SUB WOOFER
VR-3080 (2/4) KRF-V7772D (2/4)
X08-J/10 -CN62 4/4
D
X09-A/5 -E2... 100K
20db SEL.
DOLBY and the double-D symbol are acceptably insulated from Dolby Laboratories Licensing Corporation.
...+17V
VDD VSS
1
ELECTRIC VOL.
To reduce the risk of electric shock, leakage-current...only with no signal input. Noise reduction circuit made...
Service Manual - Page 24
...OUT 7 VDD
99 88
8 GND 9 AUX C
77
10 AUX Y
R694 10K
IC65,66 TRUE TABLE
OUTPUT INPUT 16 VIDEO1
1 MONITOR
15 A 11 B
14
VIDEO1 REC OUT
9C L
8D L
6B
12 VIDEO2
H
....2V 100
100
1G
D901
R901 470 3.8V
DOLBY DIGITAL
D902
R902 470
0V Q901 3.8V
DTS
D903
...DRIVER
SPEAKER B
D906
R906 470
0V Q905 3.5V
IR REMOTE
0V
(RECEIVE/ TRANSMIT)
Q906
0V
Q907
+5V
+5V
3.7V
R927 47K
4....
Service Manual - Page 26
...-V7772D/VR-3080
EXPLODED VIEW (UNIT)
36
A
B
C
Parts with exploded numbers larger than 700 are not supplied.
606
758
602 655
656 1
622
K K
601
J J J
Kx2
S VIDEO PRE OUT VIDEO PLAY IN
J 2 J61 J62
DIGITAL IN
OPTICAL COAXIAL
A1 A2 J1
IR OUT
J83
IR IN
J84
IR OUT
J85
SL 16 TEXT
SYSTEM CONTROL...
Service Manual - Page 27
...
CE04LW1C470M ELECTRO
47UF
2
Desti- Les articles non mentionnes dans le Parts No. Description
KRF-V7772D/VR-3080
601
1A
V A01-3690-01
METALLIC CABINET
602
1A
A09-1115-08
BATTERY COVER
605
2A
...B46-0096-53 B46-0330-03
INDICATOR INDICATOR INDICATOR WARRANTY CARD WARRANTY CARD
- KRF-V7772D/VR-3080
PARTS LIST
37
V New Parts Parts without Parts No.
ne sont pas fournis.
are ...
Service Manual - Page 29
... 560PF 0.10UF
K K J K J
K J 50WV K K
J 50WV J J 35WV
50WV K J J K
25WV K J K K
J 50WV K K 50WV
J J 35WV 50WV K
J J K K 50WV
K K K K K
J J K J K
J J 50WV K K
6
Desti-
Ref. Les articles non mentionnes dans le Parts No. KRF-V7772D/VR-3080
PARTS LIST
39
V New Parts Parts without Parts No. No
Add- New ress Parts
Parts No.
Service Manual - Page 30
... critical components. ne sont pas fournis. are not supplied. Les articles non mentionnes dans le Parts No. werden nicht geliefert. werden nicht geliefert. KRF-V7772D/VR-3080
PARTS LIST
40
V New Parts Parts without Parts No. Ref.
No
Add- Description
C612 C613 C621 C622 C623
CE04DW0J102M CC73FSL1H101J CE04KW1E470M CE04DW0J102M CC73FSL1H101J
ELECTRO CHIP...
Service Manual - Page 40
...parts list. KRF-V7772D/VR-3080
SPECIFICATIONS
VR-3080
Audio Section
Rated Output...level 7dB (100Hz), +4dB (10kHz)
Digital Audio Section
Sampling Frequency 32kHz, 44.1kHz, 48kHz Input Level / Impedance / Wavelength
Optical 15dBm~-21dBm, 660nm +30nm Coaxial 0.5Vp-p / 75Ω
Video Section
Video Inputs...IR Receiver In...KENWOOD SERVICE CORPORATION
P.O BOX 22745, 2201 East Dominguez St., Long Beach, CA 90801...
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