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AUDIO VIDEO SURROUND RECEIVER
KRF-V7771D/VR-2080 KRF-V8881D/VR-2090
SERVICE MANUAL
© 1998-5/B51-5426-00 (K/K) 1796
Indicator (B12-0326-04)
Panel* (A60-)
Front glass (B10-2451-03)
Indicator (B12-0333-04)
Knob* (K29-)
Phono jack (E63-1030-05)
CLIP INDICATOR
DOLBY DIGITAL
DTS
VOLUME A SPEAKERS ON/STANDBY POWER B DOWN UP MUTE
INPUT SELECTOR DISPLAY MODE
ON
OFF
PHONES
S VIDEO
V AV AUX L - AUDIO - R
CD2 / TAPE2 MONITOR
Knob* (K27-)
Knob* (K29 -)
Phone jack (E11-0271-05)
Knob* Front glass Knob* (K29-) (B10-2418-03) (K29-)
Video cylindrical receptacle* (E56-)
Indicator (B12-0303-24)
Lock terminal board (E70-0052-05)
Phono jack (E63-1008-05)
Phono jack (E63-1005-05)
Phono jack (E63-0133-15)
Phono jack (E63-1028-05) Oscillating module (W02-1114-05)
Miniature phone jack (E11-0374-05)x2 Slide switch (S62-0034-05) Miniature phone jack (E11-0373-05)x2
Power cord bushing (J42-0083-05) AC outlet* (E03-)
SECOND ROOM PRE OUT R AUDIO L VIDEO PRE OUT R SURROUND R AUDIO L AM CENTER REC OUT CD2 / GND TAPE 2 -FM 75 MONITOR PLAY IN ANTENNA REC OUT PHONO MD/ TAPE 1 PLAY IN R L CD1 SUB WOOFER R AUDIO L PLAY IN PLAY IN L VIDEO S VIDEO MONITOR OUT VIDEO 4 VIDEO 3
CD1 COAXIAL
( SL 16 ) ( XS 8 )
IR SL 16 XS 8 RECEIVER IN RELAY CONTROL IR REPEATER OUT
IR OUT LCD REMOTE TV ON/OFF SENSOR
VIDEO 4 VIDEO 3 VIDEO 2 COAXIAL OPTICAL OPTICAL OPTICAL DIGITAL OUT DIGITAL IN
SL 16 TEXT
SYSTEM CONTROL
R
SWITCHED
VIDEO 2 PLAY IN REC OUT VIDEO 1 PLAY IN
R
FRONT SPEAKERS A B L (6-16 ) R
L
SURROUND SPEAKERS L R (6-16 )
CENTER SPEAKER (6-16 ) C +
-
Phono jack Optical receiving module Screw Screw terminal board (E63-0139-15)x2 (W02-1181-05)x2 terminal board (E70-0095-05) (E70-0096-05) Phono jack Video cylindrical receptacle Miniature phone jack (E63-0136-15)x2 (E56-0011-05)x2 (E11-0360-05) Phono jack Phono jack Miniature phone jack (E63-0200-05) (E63-0162-05)x2 (E11-0291-05)
AC power cord* (E30-)
* Refer to parts list on page 60.
KRF-V7771D/V8881D/VR-2080/2090
CONTENTS / ACCESSORIES / CAUTIONS
Contents
CONTENTS / ACCESSORIES / CAUTIONS...............2 CONTROLS .................................................................3 DISASSEMBLY FOR REPAIR.....................................5 BLOCK DIAGRAM .......................................................6 CIRCUIT DESCRIPTION .............................................9 ADJUSTMENT .......................................................... 17 WIRING DIAGRAM ....................................................19 PC BOARD ................................................................23 SCHEMATIC DIAGRAM ............................................31 EXPLODED VIEW .....................................................59 PARTS LIST...............................................................60 SPECIFICATIONS .....................................................79
Accessories
Check that the following accessories are present.
Remote control unit (1) (A70-1191-05) AM loop antenna (1) (T90-0833-05) Loop antenna stand (1) (J19-3645-05) * AC plug adaptor (1) (E03-0115-05)
(RC-R0907) Battery cover(A09-0378-08) Batteries(R6/AA) (4) FM indoor antenna (1) (T90-0835-05) * Use to adapt the plug on the power cord to the shape of the wall outlet. (Accessory only for regions where use is necessary.)
Cautions
How to reset the microcomputer
The microcomputer may malfunction (impossibility of operation, erroneous display, etc.) when the power cord is unplugged and key plugged in again while the unit is in ON mode with the pressed or due to other external causes. In this case, execute the procedure on the right to reset the microcomputer and return the unit to the normal condition. ÷ Resetting the microcomputer clears the memory you entered and returns it to the initial condition when the unit left the factory.
U.S.A. and Canada
1 Unplug the power cord from the wall outlet. 2 While holding the (ON/STANDBY) key depressed, plug the power cord into the wall outlet again.
Expect for U.S.A. and Canada
1 With the power cord plugged in, turn the POWER key OFF. 2 Whill holding down the ON/STANDBY key, press POWER key.
Memory backup function
Please note that the following items will be deleted from this unit's memory if the power cord is disconnected from the AC outlet for approximately three days.
÷ The input selection is cleared and the "Tuner" input is selected. ÷ The volume setting is cleared and the volume is set to "-66 dB". ÷ The receiving band setting is cleared and the "FM" band is selected. ÷ The frequency setting is cleared and 87.5 MHz is selected. ÷ The preset station memory is cleared. ÷ The surround setting is cleared and reset to the initial condition.
2
KRF-V7771D/V8881D/VR-2080/2090
CONTROLS
MUTE indicator Multi-mode display
MUTE ST. TUNED
Stereo indicator TUNED indicator
Display
CLIP INDICATOR
DOLBY DIGITAL
DTS
POWER A SPEAKERS ON/STANDBY ON/STANDBY POWER B MUTE
VOLUME
INPUT SELECTOR DISPLAY MODE
DOWN
UP
ON
OFF
PHONES
S VIDEO
V AV AUX L - AUDIO - R
CD2 / TAPE2 MONITOR
1
2 3 4 5 6
7
89 0 !@
# $%
^ & *
1 POWER key 2 POWER key
(U.S.A., U.S.Military and Canada) Press to switch power ON and OFF.
8 Indicators
CLIP INDICATOR : Lights when the input is clipped during analog to digital signal conversion. DOLBY DIGITAL : Lights when Dolby Digital is activated. DTS : Lights when the DTS is activated. Press to mute the audio temporarily.
$ VIDEO input jack % AUDIO (L, R) input jacks
Connect the composite video output (RCA) jack of an AV component. Connect the audio output (RCA) jacks of an AV component. Lights when the CD2/Tape2 (Monitor) input is used. Press to switch the display on the main unit.
3 ON/STANDBY key
(Except for U.S.A., U.S.Military and Canada) (China : POWER) Press to switch the main power ON and OFF. (Except for U.S.A., U.S.Military and Canada) Press to switch the power mode between STANDBY and ON. Lights in STANDBY mode. Receives signals transmitted from the remote control unit. Use for listening audio through headphones. Press each key to switch the SPEAKERS A or SPEAKERS B ON and OFF.
^ CD2/TAPE2 MONITOR indicator & DISPLAY MODE key
9 MUTE key
4 STANDBY indicator 5 RC sensor
0 RC transmitter ! Indicator
Sends signals to the remote control unit. Lights when signal is input from or output to the remote control unit. Rotate to adjust the volume. (Except for the VR-2080 or the KRF-V7771D for the U.S. Military destination) Connect the S VIDEO output jack of an AV component.
* INPUT SELECTOR key
Press to switch the input as shown below. TUNER CD1 MD/Tape1 VIDEO1 VIDEO2 VIDEO3 VIDEO4 AV AUX PHONO
6 PHONES jack
@ VOLUME control knob # S VIDEO input jack
7 SPEAKERS keys
STANDBY indication
While standby indicator is indicated, a small amount of power is supplied to the system to back up the memory. In this mode, the system can be turned ON by remote control.
3
KRF-V7771D/V8881D/VR-2080/2090
CONTROLS
Controls and indicators
The Remote Control unit provided with the Receiver can also control KENWOOD MD recorder, cassette decks, CD player, DVD player and LD player which are connected to it through system control cords. For details of the controllable functions, refer to the instruction manuals of these components. 2
Note
3
4 5 67 8 90 !@ #$ % ^ & * ( ¢
§
RC : Infrared system 1
Main Menu
Phono CD1 CD2 Tuner
Perform "Model Type Setup" of the RC before using it. The following menu display appears after the batteries are loaded for the first time.
¶
MD/ Tape1 CD2/ Tape2 Input Digital
Macro
Input Analog
Remote Mode
ENTER VOLUME
) ¡
TV1
TV2
Video1
Video2
Video3
Video4
AV AUX
Setu p Surround SP Selection SP Distance SP Level Surr.SP Type
MUTE CONFIRM
· ª
Model Type Setup Model 1 Model 2 Model 3
TM
º
ON/STANDBY
/ Segment screen 1 Segment screen 2 TV1 icon
The fixed icons are displayed in this area. Select to display the TV1 control screen. Select to display the Main Menu screen. Select to display the TV2 control screen. Select to select the PHONO input. Select to control Video1. Select to control CD1. Select to control Video2. Select to control CD2. (Room B only) Select to control Video3.
£ ! Tuner icon @ Video4icon
Select to control Tuner. Select to control Video4. Select to control MD or Tape1. Select to monitor the CD2/Tape2 input. (Room A only) Select to select the AV AUX input. Select to play a digital input or to switch between Auto and Manual. Select to control Macro. Select to play an analog input. Select to switch the remote control operation mode without changing the selected input.
The displayed icons are variable depending of the "Model Type Setup" for matching specifications with the Reciever which uses the RC unit and "Setup" for matching specifications with connected source component.
# MD/Tape1 icon
Menu screen ) Menu screen
Control key icons and control levels are displayed in this area. The example in the illustration shows the "Setup Surround" status.
Operation keys Joy stick key
This key is used to select an icon. This key can be controlled in 4 directions. Press to enter the selection of an icon. Press to increase the volume.
3 Main Menu icon 4 TV2 icon
$ CD2/Tape2 icon % AV AUX icon
¡ Status display
§ ENTER key
5 Phono icon
^ Input Digital icon & Macro icon
TM SP Selection icon
¶ VOLUME (up) control key · VOLUME (down) control key ª CONFIRM key º MUTE key /
Press to select the currently displayed items. Press to mute the audio temporarily.
6 Video1 icon 7 CD1 icon
* Input Analog icon
£ Return icon
Select to set up the speakers. Select to return to the previous menu screen. Shows the communication status.
Press to decrease the volume.
8 Video2 icon 9 CD2 icon
( Remote Mode icon
¢ Status display
0 Video3 icon
(ON/STANDBY) key
Press to turn this unit and the components connected to it through system cords between ON and STANDBY modes.
4
KRF-V7771D/V8881D/VR-2080/2090
DISASSEMBLY FOR REPAIR
2 2 2
x5 x2 x3
[Remove the bottom plate.]
2 2
x3
2
x2
Make use of the changing final transistor etc. 1. Remove the 19 screws (1, 2) and PCB support, then remove the bottom plate.
1
2 1
Fig. 1 [Check the vertical PCB]
1. (Exist bottom plate) Remove the hook of rear panel(1). 2. Remove the 29(Exist bottom plate: 34) screws(2), then remove the rear panel. 3. Connect the GND of the phono terminal, the GND of antenna shield board,the GND of coax., the GND of system control shield board, the GND of SP terminal shield board and the chassis with 5 wires connected alligator chips(3).
3 3 3 2
x29
3
3
1
Fig. 2 [Remove the escutcheon (operation panel)]
6
7
6 8 x2
1
3 3 x2 3 4 3 9 12 2 5 x2 4 4 3
9
9 x5
1. Remove the knob(1), the nut (2), the 11 screws(3, 4, 5) and 2 hooks (6), then remove the front panel ass'y. 2. Remove the lead wire(7), the 2 screws(8 : except K,P type) and 7 screws(9) then remove the PCB. 3. Remove the under front glass(0, -), then remove the front panel(=) from the sub panel. 4. Remove the 2 under escutcheon sides(~) by · screw driver and the 2 hooks(!) then remove the escutcheon(@).
10 11
13 14 14 13 15 13
Fig. 3
5
KRF-V7771D/V8881D/VR-2080/2090
BLOCK DIAGRAM
(SIGNAL STAGE)
(X25)
(ANALOG) PHONO 2.5mV/4.7K PHONO IN EQ IC1 IC23 L4,R4
(X11)
DIRECT
(X11)
IC1(1/2), IC2(1/2) R5 ROOM A LINE BUFFER L5,R5 TUNER L1,R1 L2,R2 L7,R7 L3,R3 IC21(1/2) INPUT ATT
(X08)
MAX:1.0Vrms BUFFER IC21(2/2) BUFFER IC74 IC62 FL,FR IC76 21kHz LPF
OTHER IN 200mV/47K OUT 200mV/2.2K L2 TAPE1/MD IN L4 TAPE/CD2 IN (TAPE2 MONITOR) CD1 IN TC9164AF-2 L1 R1 R4 R2
AD/DA CS4226
IC78(1/2) 21kHz LPF CENTER
IC80 21kHz LPF LS,RS,
IC87 ROM IC86
IC52 DTS DSPI56009FJ88 SUB
IC78(2/2) 80Hz LPF
IC4 L1,R8 VIDEO1 IN TC9163AF-2 L2,L4 R2,R4 L3,L5 VIDEO3 IN L6,L7 VIDEO4 IN L5 AV AUX IN VR-2090 IC1(2/2), IC2(2/2) R3 ROOM B LINE BUFFER IC5 L8,R6 R3,R5 IC56 DRAM R1,R7
SRAM IC59 CONFIGRATION DSPB56007FJ88 IC60 D-SEL1 IC89 D-SEL2
VIDEO2 IN
IC56 IC55 DRAM AC-3 DSPF56009FJ88
L3
IC3
DIGITAL REC OUT BUFFER
L7 TAPE1/MD REC R8 VIDEO1 REC R7 VIDEO2 REC L8 TAPE2 REC
(DIGITAL) CD COAXIAL
IC72 BUFFER BUFFER
VIDEO4 COAXIAL BUFFER VIDEO3 OPTICAL BUFFER VIDEO2 OPTICAL
IC71
DIGITAL OPTICAL OUT VR-2090 DIGITAL REC SEL.
6
KRF-V7771D/V8881D/VR-2080/2090
KRF-V7771D/V8881D/VR-2080/2090
(u-COM STAGE) LED (X08) J15 SL16 TEXT TX 6 RX FL DRIVER (X25) IC61
51 7
BLOCK DIAGRAM
(X25) ED1 FL KEY MATRIX
(X25)
IC42 L1,R1 CONFIG-2 LOW BOOST IC47,48 IC43 IC44 TONE TC9163AF-1 L4,R4
(X07)
(X08) J16 SYSTEM CONTROL (X08) J17 5ch SP. OUTPUT KRF-V7771D 26.8V/6 KRF-V8881D 27.9V/6 24.5V/6 DTS
7
SDATA
SBUSY
DATA IN .STB DATA OUT.RESET CLK
(X25) A1 REMOTE SENSOR
SYSTEM CONTROL (X08) IC86
PEAK LEVEL LED
VR-2090 (K,P)
5
VR-2090 (K,P) (X11) J14 REPEATER OUT (X11) J13 (1/2) IR RECEIVER IN
(X11) J12 RELAY CONTROL TV or LIGHT SENSOR
L3,R3 (X25)(X07) 29dB POWER AMPLIFIER
VR-2080 VR-2090 PHONES K1 FRONT A L,R (X25)(X07) 29dB POWER AMPLIFIER
SUB u-COM DATA-IN DATA-OUT
MISO/SDA SCK/SCL HREQ RESET GPI00 MOS GPI02 SS MISO/SDA HREQ SCK/SCL MISO/SDA RESET HREQ MOS GPI00 SS MDT SDT MCK MREQ SREQ RESET 6
INV
(X11) IC49
IC21 L2,R2 L6,R6 VOLUME
BUFFER IC51
Q1,2 -20dB ATT
AMP IC22
Q3,4 MUTE
AC-3
6
(X08) IC69 MAIN u-COM (X08) IC67 REMOTE u-COM
DATA CLK STB
CONFIG
7
(X08) Q64-66 455kHz FILTER
(X11) J13 (2/2) IR LED REMOTE OUT (X11) D21-24
L7,R7
IC25(1/2) VOLUME
IC53 (1/2)
Q9 -20dB ATT
IC26 (1/2)
Q11 MUTE
K4 C SPEAKERS
DAC/ADC
10
.FREQ1.ERR CDOUT .AC-3 CCLK .FREQO .PDN CS CDIN .AUDIO
(X08) IC53
OUT LED (X07) Q211-215 FAN DRIVER FAN FRST/SLOW FAN ON/OFF FAN
IC23 L8,R8 VOLUME IC52
Q5,6 -20dB ATT
IC24
Q7,8 K1 MUTE
(X25)(X07) 29dB POWER AMPLIFIER
SIRIAL/ PARALEL
DATA CLK
K3 SL,SR K2 FRONT B ROOM B SP
TUNER
(X08) IC68 RDS TUNER 9 VIDEO SEL. WIDE V-MUTE VIDEO SYNC TONE CONT.
8 3
DIGITAL INPUT SEL. 4 3
IC25(2/2) VOLUME
IC53 (2/2)
Q10 -20dB ATT
IC26 (2/2)
Q12 MUTE BUFFER IC31(1/2) Q35 MUTE BUFFER IC30
FAN
2
PROTECTION PRE OUT 1.0/1K
RELAY 5(A,B,CS,TR,POWER)
ROOM B IC27 VOLUME VR-2090
IC28
Q5,6 MUTE -20dB ATT A-MUTE SW-MUTE B-MUTE VR-2090 BUFFER IC31(2/2)
C
(X07)
Q154
SE-RLY
Q33,34 MUTE Q36 MUTE SW
To u-COM
RELAY DRIVER (X07) IC31 D301-304
SL,SR
PRE OUT +5.6V AVR
+
(X07) T1
EXCEPT K.P STROKE SW S1
K6
(X25)
(S1-VIDEO) 1Vp-p/75 VIDEO 1
Y C
IC11,12 SN761200Nx2
IC13 TC74HC4051AP
GND Q1-4 MUTE SECOUND ROOM PRE OUT VR-2090 RELAY CS A-MUTE S-MUTE SW-MUTE RELAY S RELAY A RELAY B B-MUTE
To POWER
FINAL TR. GND FINAL TR.
Q301
+ +
D251
RELAY POWER-RLY DRIVER
Y
VIDEO 2
C
(X25)
(VISUAL) 1Vp-p/75 VIDEO 1 IC51 SN761200N
PRE DRIVE GND K5 PRE DRIVE
EXCEPT K.P D252
Y
PLAY
VIDEO 3
C
D311 Q311 -35V AVR D312 AC OUTLET
Y
VIDEO 4
C
VIDEO 2 COMP VIDEO PLAY VIDEO 3 VIDEO 4 Q12 (FRONT) AV AUX COMP VIDEO REC VIDEO 1 Q51 VIDEO 2 Q55 MONITOR OUT (OSD)
V-MUTE
(X25)
IC83 To VIDEO 5 Q52
To ANALOG TUNER
(FRONT) AV AUX
Y C
Q86 AVR Q83 AVR Q84
D86
AVR
Y
+17V GND -17V To VIDEO 5 IC52(2/2) +5.0V AVR IC82 AVR Q85
D81
+ +
VIDEO 1
C
Q14 REC Q11
Y
AVR
VIDEO 2
C
Q13 Q16
Y
(X08)
To DSP SRAM DRAM
AVR IC57,61, 63-65,73
AVR IC84
+
D88
Q31
MONITOR OUT
C
V-MUTE
Q30
MONITOR OUT B (SECOND ROOM) SECOND(B) ROOM VIDEO
Q17 VR-2090
IC52(1/2)
GND +30V
+
D82
Q15
To FAN
GND FIL FIL
VR-2080
7
8
KRF-V7771D/V8881D/VR-2080/2090
CIRCUIT DESCRIPTION
1. The back up item and initialization condition
1-1 Back up
· POWER ON/OFF · VOLUME LEVEL · AUDIO INPUT · SELECTOR · VIDEO INPUT · SELECTOR · SPEAKER A · SPEAKER B · CD2/TAPE2 MONITOR · TONE · LOUDNESS · DISPLAY MODE · RDS DISPLAY MODE · DIMMER · SURROUND MODE · DSP MODE · ROOM SIZE · WALL TYPE · EFFECT LEVEL · MIDNIGHT MODE · DISTANCE : OFF : -66dB : TUNER : VIDEO1 : ON : OFF : TAPE2 OFF : OFF : OFF : DEVICE+DGTL/ANLG : FREQUENCY : DIMMER 1 (LIGHTEST) : STEREO : ARENA : Med : Med :3 : OFF : FL/FR : 10ft : C : 10ft : RS/LS : 5ft : SW : 10ft : LARGE : NORMAL · SURROUND SP. : NORMAL/WIRED · SUB WOOFER : ON · SW Re-Mix : OFF · INPUT LEVEL : 0dB · CH. LEVEL : 0dB · TONE BASS : 0dB · TONE TREBLE : 0dB · TUNING MODE : AUTO · PRESET MEMORY : TEST MEMORY FREQUENCY (Same value with KR-V999D/1090VR) · LAST BAND : FM · FM LAST FREQUENCY : 87.5MHz · AM LAST FREQUENCY : 531kHz (CH. SP 9kHz) : 530kHz (CH. SP 10kHz) · LAST P. ch : [- -ch] · PTY SELECT MODE : OFF · PTY SEARCH MODE : OFF · TP SEARCH MODE : OFF · RDS DISPLAY MODE : FREQUENCY MODE
1-2 The initial setting
While pressing POWER key, plug the AC power cord into an AC outlet (K,P type) or turn on the AC POWER switch.
· FRONT SP. · CENTER SP.
2. Condition by the destination or model
(0 : Pull down, 1 : Pull up)
74 DSW0
Diode sw Channel PLL standard Reception IF TYPE BAND space frequency 77 DSW3 76 DSW2 75 DSW1 frequency FM 87.5MHz~108.0MHz 100kHz +10.7MHz 25kHz K1 0 0 0 1700 AM 530kHz~1700kHz 10kHz +450kHz 10kHz FM 87.5MHz~108.0MHz 100kHz +10.7MHz 25kHz K2 0 0 0 1610 AM 530kHz~1610kHz 10kHz +450kHz 10kHz FM 87.5MHz~108.0MHz 100kHz +10.7MHz 25kHz K4 1 0 1 1700 RBDS AM 530kHz~1700kHz 10kHz +450kHz 10kHz FM 87.5MHz~108.0MHz 50kHz +10.7MHz 25kHz E1 0 0 1 AM 531kHz~1602kHz 9kHz +450kHz 9kHz FM 87.5MHz~108.0MHz 50kHz +10.7MHz 25kHz E3 0 1 0 AM 531kHz~1602kHz 9kHz +450kHz 9kHz RDS FM L 65.0MHz~74.0MHz 10kHz +10.7MHz 5kHz Q1 FM H 87.5MHz~108.0MHz 50kHz +10.7MHz 5kHz 1 0 1 RDS AM 531kHz~1602kHz 9kHz +450kHz 9kHz K2/E1 is switched with only the setting of DSW1 (X11 : S601). M 0 0 X (DSW1 = 0 : K2 type, 1 : E1 type)
0 1 0 1 1 1 1
3. TEST MODE
[setting method] While pressing INPUT SELECTOR key, plug the AC power cord into an AC outlet (K, P type) or turn on the AC POWER switch. When a set is set up in test mode condition a set becomes the following condition. Automatic POWER ON. All indicator tube (FL) and
CLIP INDICATOR LED are lighted. The other LED are flashed. A backup at the thing except ON/OFF of POWER is initialized. [cancel method] The power supply is turned off.
9
KRF-V7771D/V8881D/VR-2080/2090
CIRCUIT DESCRIPTION
Push key I N P U T SELECTOR TUNER CD1 MD/TAPE1 VIDEO1 VIDEO2 VIDEO3 VIDEO4 STEREO STEREO STEREO PRO LOGIC 3 STEREO STEREO ARENA DSP JAZZ CLUB SP A SP B P. CALL P. CALL UP DOWN MUTE ATT OFF ON FM DISPLAY MODE AUTO/STEREO MANUAL/MONO (DOLBY DIGITAL LED : OFF ON) TONE (TUNED) +10 (light on) OFF (light off)
(Press the key for 2 secs) ANALOG DIGITAL OFF
DISPLAY
IR RECEIVER A(ON)
THEATER STADIUM CATHEDRAL TAPE2 OFF ON INPUT LEVEL 0dB -3dB -6dB
AV AUX PHONO
STEREO STEREO
4. Main microprocessor uPD78078GF-080 (X08 : IC69)
4-1 Microprocessor periphery block diagram
(X25) IC53 VIDEO IC NJU3713D
SEL_DATA, SEL_CLK, VIDEO_STB
(X08) IC60,71,89 (X25) IC 90 OTHERS PERFECT MACRO MUTE TC74HC153AF POWER DETECT
PROTECTION1, PROTECTION2, FAN1, FAN2, FAN3, DIN_1, DIN_2 TU_PDET, U_PDET, USEL_CTLA, USEL_CTLB USEL_TR MUTE_A, MUTE_B, SW_MUTE, -20dB_ATT, VIDEO_MUTE, SCH_MUTE
(X08) IC67 REMOCON COMMUNICATION IC
SMK_REQ, SMK_ENB, SMK_RWR, SMK_D0, SMK_D1, SMK_D2, SMK_D3, SMK_D4, SMK_D5, SMK_D6, SMK_D7
(X11) S1 ENCODER
ENC_VOL1, ENC_VOL2 999_888, 8_16, TSW_B, TSW_1, TSW_2, TSW_3 (CH, SP)
DESTINATION
(X11) IC1,2,42 (X25) IC23 SEL IC1/2 TC9162~9164
SEL_DATA, SEL_CLK, SEL_STB1, SEL_STB2
(X07) K1~6 (X25) K1 RELAY
RELAY_A, RELAY_B, RELAY_CS, RELAY_TR, RELAY_POWER, EXT_OUT RELAY_MULTI
(X11) IC21,23,25,27 VOLUME IC TC9412/9413AP
VOL_DATA, VOL_CLK, VOL_CE1
MAIN u-COM
SERIAL
uPD78078GF-080
SDATA, SBUSY
(X11) IC44 TONE IC TC9184AP
VOL_DATA, VOL_CLK, VOL_CE2
(X25) IC61 FL DRIVER
FL_DOUT, FL_DIN, FL_CLK, FL_STB, DPU_RST
(X11) (X25) REMOCON
REMOCON_IN1 (FRONT PANEL) REMOCON_IN2 (REPEATER)
(X08) IC68 TUNER/RDS SAA6579
RDS_DAT, RDS_CLK, RDS_SLEVEL, T_MUTE, SD, STEREO
(X11) IC602 TUNER PLL IC LC72131
PLL_CLK, PLL_DATA, PLL_CE, PLL_DO
(X08) IC66 SUB u-COM uPD78058GC
SUB_RESET, SDT, MOT, MCK, MREQ, SREQ
MEGA CHANGER (CD-0000M)
UART_RXD, UART_TXD,
10
KRF-V7771D/V8881D/VR-2080/2090
CIRCUIT DESCRIPTION
4-2 Pin description
Pin No. 1 2 3 4 5 6 7 8 9 10, 11 12 13, 14 15 16 17 18 19 20, 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 Pin Name VOL_STB VOL_CLK VOL_DATA SEL_STB1 SEL_STB2 VIDEO_STB SEL_CLK SEL_DATA X2, 1 Vdd XT2, 1 RESET REMOCON_IN1 REMOCON_IN2 RDS_DATA RDS_CLK NC CE AVdd AVrefo RDS_SLEVEL T_MUTE PLL_CLK PLL_DATA PLL_CE SD STEREO PLL_DO AVss SUB_RESET V_PDET AVref1 UART_RXD UART_TXD VSEL_TR Vss SDT MDT MCK MREQ I/O O O O O O O O O I I I I I I I I I O O O O I I I O I I I O O I O O O Connect PD PD PD PD PD PD PD PD PD +5V OPEN VDD PD PD PD VDD VDD PD PD PD PD PD PU PU PD VSS PD PU VDD PD PD PD GND PD PD PD PD Description VOLUME IC CE (TC9412AP/TC9413AP) VOLUME IC CLOCK (TC9412AP/TC9413AP) TONE IC CLOCK (TC9184AP) VOLUME IC DATA (TC9412AP/TC9413AP) TONE IC DATA (TC9184AP) ANALOG SW. STROBE (NJU731x) ANALOG SW. STROBE (NJU7311-NJU7313) VIDEO IC STROBE (NJU3713) ANALOG SW. CLOCK (NJU7311-NJU7313) VIDEO IC CLOCK (NJU3713D) ANALOG SW. DATA (NJU7311-NJU7313) VIDEO IC DATA (NJU3713D) NO USED MAIN CLOCK 4.19MHz (CERAMICS) +5V NO USED uCOM RESET FRONT PANEL REMOCON EXTERNAL REMOCON RDS DATA (SAA6579) RDS CLOCK (SAA6579) NO USED BACK UP CE +5V A/D POWER SUPPLY RDS SLEVEL (SAA6579) TUNER MUTE PLL IC CLOCK (LC73131) PLL IC DATA (LC72131) PLL IC CE (LC72131) SD INPUT STEREO INPUT PLL IC LC72131 DO (LC72131) GND SUB uCOM RESET (uPD78058GC-A74) PERFECT MACRO VIDEO POWER DETECT +5V MEGA CHANGER CD DATA RECEIVE POWER LINE REMOCON CODE RECEIVE MEGA CHANGER CD DATA TRANSMIT POWER LINE REMOCON CODE TRANSMIT PERFECT MACRO VIDEO SELECTOR POWER SUPPLY SW. Tr GND uCOM-uCOM COMMUNICATION SLAVE DATA (uPD78058GC-A74) uCOM-uCOM COMMUNICATION MASTER DATA (uPD78058GC-A74) uCOM-uCOM COMMUNICATION MASTER CLOCK (uPD78058GC-A74) uCOM-uCOM COMMUNICATION MASTER REQUEST (uPD78058GC-A74)
11
KRF-V7771D/V8881D/VR-2080/2090
CIRCUIT DESCRIPTION
Pin No. 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68, 69 70 71 72 73 74~76 77 78 79 80, 81 82 83 84 85 86~93 94 95 96 97 98 99 100 Pin Name SREQ FL_DOUT FL_DIN FL_CLK FL_STB VSEL_CTLA VSEL_CTLB FAN_1 FAN_2 FAN_3 SDATA SBUSY RELAY_A RELAY_B RELAY_CS RELAY_TR RELAY_POWER EXT_OUT NC DRV_RST TV_PDET 999_888 8_16 ENC_VOL2, 1 PROTECTION1 Vss PROTECTION2 NC TSW_0~2 TSW_3 (CH. SP) NC RELAY_MULTI DIN_1, 2 DIN_STB SMK_REQ SMK_ENB SMK_RWR SMK_D0~D7 MUTE_A MUTE_B SW_MUTE -20dB_ATT VIDEO_MUTE SCH_MUTE TONE_STB I/O I I O O O O O I I I I/O I/O O O O O O O O O I I I I I I I I I I O O O O I I O O O O O O O O Connect PD PD PD PD PD PD PD PD PD PD PD PD PD PD PD PD PD PD PD PD PD GND PD PD PD PD PD PD PD PD PD PD PU PU PU PU PD PD PD Description uCOM-uCOM COMMUNICATION SLAVE REQUEST (uPD78058GC-A74) FL DRIVER DATA IN FL DRIVER DATA OUT FL DRIVER CLOCK FL DRIVER STROBE PERFECT MACRO VIDEO SELECTOR CONTROL A PERFECT MACRO VIDEO SELECTOR CONTROL B FAN DETECT 1 FAN DETECT 2 FAN DETECT 3 SERIAL DATA SERIAL BUSY SPEAKER A RELAY SPEAKER B RELAY CENTER/SURROUND SPEAKER RELAY TRANS RELAY POWER RELAY EXTERNAL OUT NO USED FL DRIVER RESET PERFECT MACRO TV POWER DETECT TYPE SELECT H : VR-2090 SERIAL SELECT L : SERIAL 16bit VOLUME ENCODER IN PROTECT DETECT GND PROTECT DETECT NO USED TUNER SIMUKE SWITCH 0~2 TUNER SIMUKE SWITCH 3 (CHANNEL SPACE) NO USED SP B SIGNAL OUTPUT ROOM A : L DIGITAL REC SELECT (TC74HC153AF) DIGITAL REC SELECT STROBE (TC74HC153AF) REMOCON DATA TRANSMIT IC REQ REMOCON DATA TRANSMIT IC ENB REMOCON DATA TRANSMIT IC RWR REMOCON DATA TRANSMIT IC D0~D7 ROOM A MUTE ROOM B MUTE SWch MUTE -20dB ATTENUATER VIDEO MUTE Sch MUTE TONE IC CE (TC9184AP)
L : VR-2080 H : SERIAL 8bit
ROOM B : H
12
ROOM B
TAPE MONITOR
(X25 : IC23) TC9162 (X11 : IC4) TC9163 (X11 : IC1, 2) TC9164 INPUT INPUT SURROUND SELECTOR SW1 SW2 SW3 SW4 SW5 SW6 SW7 L1 L2 L3 L4 L5 L6 L7 L8 R1 R2 R3 R4 R5 R6 R7 R8 L1 L2 L3 L4 L5 L6 L7 L8 R1 R2 R3 R4 R5 R6 R7 R8 MODE MODE Pin No. 2TM 3¡ 5_ 6) 8* 9& -% 2 3 4 6 7 8 0 - TM ¡ + ) ( * ^ % 2 3 4 5 7 8 0 - TM ¡ + _ ( * ^ % TUNER O MD/TAPE1 O CD1 O CD2 O ANALOG VIDEO1 O O VIDEO2 O O VIDEO3 O O VIDEO4 O O O O O O O O O O O O O O O O O O O O O O O O O O O O
ROOM A (TAPE 2 is set with CD 2/TAPE 2 SELECTOR)
ANALOG
TAPE2 OFF
O O O O O O O O O
O O O O O O O O O O O
O O O O O O O O O O O O O O O O O O O O O O O O
5. AUDIO INPUT SELECTOR CONTROL
STEREO
DIGITAL O O O O O O O O O O O O O O O O
O O O
EXCEPT STEREO
O
O O O O O O O O O
O O O O O O O O O O O O O O O O O O O O O O O O
CIRCUIT DESCRIPTION
ANALOG O O O O O O
O
TAPE2 ON
O
O O O O O O
O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O
O O O
O O O O
STEREO
DIGITAL
EXCEPT STEREO
PHONO TUNER MD/TAPE1 CD1 VIDEO1 VIDEO2 VIDEO3 VIDEO4 AV AUX MD/TAPE1 CD1 VIDEO1 VIDEO2 VIDEO3 VIDEO4 MD/TAPE1 CD1 VIDEO1 VIDEO2 VIDEO3 VIDEO4 PHONO TUNER MD/TAPE1 CD1 VIDEO1 VIDEO2 VIDEO3 VIDEO4 AV AUX MD/TAPE1 CD1 VIDEO1 VIDEO2 VIDEO3 VIDEO4 MD/TAPE1 CD1 VIDEO1 VIDEO2 VIDEO3 VIDEO4
O O O O O O O O O O O O O O O O O O O O O
CD 2 is set CD2/TAPE 2 : (X11) IC1, 2 - pin OFF
KRF-V7771D/V8881D/VR-2080/2090
13
KRF-V7771D/V8881D/VR-2080/2090
CIRCUIT DESCRIPTION
6. Sub microprocessor uPD78058GC-A74 (X08 : IC66)
6-1 Microprocessor periphery block diagram
(X08) IC62 A IN D IN A OUT (X08) IC52 (X08) IC56 Y DECODER DSP56009 (X08) IC92 TC74HC 123A CLOCK CDDEC CS4226 DATA
DTS DECODER DSP5609
DATA
CLOCK
CLOCK DATA (X08) IC60 TC74HC 153A DATA DATA DATA
IC89 TC74HC 153A
(X08) IC66
(X08) IC59 CONFIGURATION
CLOCK
SUB u-COM uPD78058GC A74
DSP56007 CLOCK
VIDEO WIDE DETECT VIDEO WIDE CHANGEOVER
(X08) IC69
CLIP INDICATOR CONTROL
CONTROL SIGNAL AUDIO DATA, CLOCK
MAIN u-COM uPD78078GF-080
14
KRF-V7771D/V8881D/VR-2080/2090
CIRCUIT DESCRIPTION
6-2 Pin description
Pin No. 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19~21 Pin Name DSP1_RESET DSP3_SS DSP3_HREQ DSP3_RESET N. C. AVref1 DSP3_MI DSP3_MO DSP3_CK MDT SDT MCK MREQ SREQ DSP1_MI/DSP2_MI DSP1_MO/DSP2_MO DSP1_CK_DSP2_CK NO_MUTE_TIME0~2 I/O O O I O I I O O I O I I O I O O I Connect P. D. P. U. P. D. GND P. D. P. D. +5V P. D. P. D. P. D. P. D. P. D. P. D. P. D. P. D. P. D. P. D. P. D. P. U. Description DSP IC1 (AC-3) RESET DSP IC3 (THX) SLAVE SELECT DSP IC3 (THX) HOST REQUEST DSP IC3 (THX) RESET DSP IC3 (THX) MASTER IN SLAVE OUT DSP IC3 (THX) MASTER OUT SLAVE IN DSP IC3 (THX) CLOCK Microprocessor communication MASTER DATA Microprocessor communication SLAVE DATA Microprocessor communication MASTER CLOCK Microprocessor communication MASTER REQUEST Microprocessor communication SLAVE REQUEST DSP IC1, 2 (AC-3, DTS) MASTER IN DSP IC1, 2 (AC-3, DTS) MASTER OUT DSP IC1, 2 (AC-3, DTS) CLOCK PCM NONE INPUT UNMUTE HOLD TIME SETTING pin 19 L L L L 20 L L H H 21 L H L H TIME(s) 0 1 2 3 pin 19 H H H H 20 L L H H 21 L H L H TIME(s) 4 5 6 5
22~26 27 28 29~32 33 34 35~40 41 42 43 44~46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63
N. C. PEAK_LEVEL WIDE_0 WIDE_I0~I3 Vss WIDE_I4 N. C. DSP_SEL_DISABLE N. C. SEL_ANALOG N. C. SUB_MUTE N. C. 2090/2080 DSP_SEL1 DSP_SEL2 CS_OVL/ERR CS_PDN CS_FREQ1 CS_FREQ0 CS_CDIN CS_CS CS_CCLK CS_CDOUT RESET CS_AUDIO CS_AC3 DSP2_DTS_DTCT
I O O I I I O I O I O I I O O I O I I O O O I I I I I
P. U. P. D. P. D. P. D. GND P. D. P. D. P. D. P. D. P. D. P. D. P. D. P. D. P. D. P. D. P. D. P. D. P. D. P. D. P. D. P. D. P. D. P. D. P. D. P. D. P. D. P. D.
CLIP INDICATOR LED CONTROL S-VIDEO WIDE/NORMAL CHANGEOVER CONTROL (MONITOR OUT) S-VIDEO WIDE/NORMAL DETECT0 (VIDEO4~1) S-VIDEO WIDE/NORMAL DETECT4 (AV AUX) DSP SELECTOR OUTPUT DISABLE (mute) INPUT DIGITAL/ANALOG DISTINCTION analog: L, digital: H SUB MUTE CONTROL 2090/2080 MODEL DISTINCTION DSP SELECTOR TC74HC CHANGEOVER H: DTS, L: DOLBY DSP SELECTOR TC74HC CHANGEOVER H: DTS, L: DOLBY CODEC OVER LEVEL/ERROR CODEC POWER DOWN CODEC FS CHECK1 CODEC FS CHECK0 CODEC DATA OUT CODEC CHIP SELECT CODEC CLOCK CODEC DATA IN RESET CODEC AUDIO/NON-AUDIO DETECT H: DATA, L: PCM CODEC AC-3 H: AC-3 DETECT DSP IC2 (DTS) DTS DETECT H: DTS DETECT
15
KRF-V7771D/V8881D/VR-2080/2090
CIRCUIT DESCRIPTION
Pin No. 64 65 66 67 68 69, 70 71 72 73 74 75 76 77 78 79 80 Pin Name DSP1_GPI0 DATA_IN N. C. N. C. Vdd X2, 1 IC (Vpp) N. C. P07 AVdd AVrefo DSP2_HREQ DSP2_SS DSP2_RESET DSP1_HREQ DSP1_SS I/O O I I I I O O I O Connect P. D. P. D. P. D. P. D. +5V GND OPEN +5V GND P. D. P. U. P. D. P. D. P. U. Description DSP IC1 (AC-3) DSP MODE USE SETTING PARAMETER DIR OUTPUT DETECT H: DIGITAL DATA IN CLOCK OSCILLATOR 4.23MHz DSP IC2 (DTS) HOST REQUEST DSP IC2 (DTS) SLAVE SELECT DSP IC2 (DTS) RESET DSP IC1 (AC-3) HOST REQUEST DSP IC1 (AC-3) SLAVE SELECT
6-3 DIR A/D & D/A CONVERTER (CODEC) CS4226KQC (X08 : IC62)
6-3-1 CODEC CS4226 Main pin description Pin No. 3 4 5 6 7 8 9 10 11 12 30 Pin Name SCL/CCLK SDA/CDOUT ADI/CD IN ACO/CS SPI/I2C PDN AIN3R/AUDIO AIN3L/AUTODATA AIN2L/FREQ0 AIN2R/FREQ1 OVL/ERR Description Serial communication CLOCK Serial data line CS4226 î SUB uCOM Serial data line SUB uCOM î CS4226 CS4226 CHIP SELECT Serial control format setting Powerdown Pin audio/non-audio detect Input C bit, V bit H : Signal of AC-3, MPEG, DTS Channel Status Freq. Bit Channel Status Freq. Bit Input Analog : ADC clipping indicator Input Digital : D/PDIF error indicator
-= FREQ0/FREQ1 32kHz FREQ1 H FREQ0 H
44.1kHz L L
48kHz L H
Reserved H L
0 AC3 AC-3/MPEG Data Stream Input AC3, MPEG, DTS Exist 1 None 0
CLIP INDICATOR (X25 : D66) CONTROL IC62 (CODEC) IC66 (Sub u-COM) INPUT SOURCE CS_OVL_ERR TM PEAK_LEVEL OUTPUT DIGITAL don't care L ANALOG L L H H H : LED LIGHTING
16
KRF-V7771D/V8881D/VR-2080/2090
ADJUSTMENT
No. ITEM INPUT SETTINGS OUTPUT SETTINGS SELECTOR : FM Connect a DC voltmeter between CN12 1 and CN12 2 (X11) RECEIVER SETTINGS ALIGNMENT POINTS ALIGN FOR F I G . FM SECTION : Except M type *Adjust NO.1 and NO.2 repeat. MONO 98.0MHz L604 (X11)
1
DISCRIMINATOR
(A) 98.0MHz 1kHz, ±75kHz dev. 70dBf (ANT. input) (A) 98.0MHz 1kHz, ±75kHz dev. MONO 70dBf (ANT. input) (C) 98.0MHz 1kHz, ±67.5kHz dev. Selector : L or R Pilot : ±7.5kHz dev. 70dBf (ANT. input) (A) 98.0MHz MONO 1kHz, ±75kHz dev. 15dBf (ANT. input)
0V
(a)
2
DISTORTION (MONO)
(B)
MONO 98.0MHz
L605 (X11)
Minimum distortion
(a)
3
DISTORTION (STEREO)
(B)
AUTO 98.0MHz
IFT(RF FRONTEND : A1)
Minimum distortion (L or R)
(a)
4
TUNING LEVEL
(B)
MONO 98.0MHz
VR601 (X11)
Adjust VR601 and stop at the point where ED1 (TUNED) goes on.
(a)
FM SECTION :M type only
SELECTOR : FM
1
DISTORTION (STEREO)
(C) 98.0MHz 1kHz, ±67.5kHz dev. Selector : L or R,Pilot : ±7.5kHz dev. 70dBf (ANT. input) (A) 98.0MHz MONO 1kHz, ±75kHz dev. 15dBf (ANT. input)
(B)
AUTO 98.0MHz
IFT (TUNER UNIT : A601)
Minimum distortion (L or R)
(a)
2
TUNING LEVEL
(B)
MONO 98.0MHz
VR601 (TUNER UNIT)
Adjust VR601 and stop at the point where ED1 (TUNED) goes on.
(a)
SYSTEM CONNECTIONS
SECOND ROOM PRE OUT R AUDIO L VIDEO PRE OUT R SURROUND R AUDIO L AM CENTER REC OUT CD2 / GND TAPE 2 -FM 75 MONITOR PLAY IN ANTENNA REC OUT PHONO MD/ TAPE 1 PLAY IN R L CD1 SUB WOOFER R AUDIO L R PLAY IN PLAY IN L
( SL 16 )( XS 8 )
CD1 VIDEO 4 VIDEO 3 VIDEO 2 COAXIAL COAXIAL OPTICAL OPTICAL OPTICAL SL 16 DIGITAL IN DIGITAL OUT TEXT
IR SL 16 XS 8 RECEIVER IN RELAY CONTROL
IR OUT LCD REMOTE TV ON/OFF SENSOR IR REPEATER OUT
VIDEO
S VIDEO MONITOR OUT VIDEO 4 VIDEO 3
SYSTEM CONTROL
SWITCHED
VIDEO 2 PLAY IN REC OUT VIDEO 1 PLAY IN
R
FRONT SPEAKERS A B L (6-16 ) R L
SURROUND SPEAKERS CENTER SPEAKER R (6-16 ) L (6-16 ) C
+ -
FM SG
AG
(A)
AC voltmeter Oscilloscope Distortion meter
FM SG
Dummy antenna
MPX
AG
(C)
(B)
17
KRF-V7771D/V8881D/VR-2080/2090
ADJUSTMENT
No. ITEM INPUT SETTINGS SPEAKER : A OUTPUT SETTINGS RECEIVER SETTINGS ALIGNMENT POINTS PROLOGIC : ON ALIGN FOR FIG.
AUDIO SECTION
PREOUT : OFF Connect a DC voltmeter across CN1 (each port) 1, 2 pin : L 5, 6 pin : R 3, 4 pin : SL 7, 8 pin : SR 9, 10 pin : C
<1>
IDLE CURRENT
--
(FRONT 2ch MODE) Volume:0
VR1(L) VR2(R) VR3(SL) VR4(SR) VR5(CENTER) (X07-)
10mV
18
KRF-V7771D/V8881D/VR-2080/2090
(X25- ) (F/7) USED KRF-V7771D(J,M1,C1)/ KRF-V8881D(C2)/ VR-2090(K2,P2)
S1 VIDEO J3
KRF-V7771D/V8881D/VR-2080/2090
WIRING DIAGRAM
R1 PHONO L1 J1
ELECTRIC UNIT (X25-604X-XX) (A/7) (X25-6133-00) (A/7)
VR-2080 (X25-6040-10)
DESTINATION UNIT No. COUNTRY ABB. U.S.A. K 040-10 CANADA P1
VR-2090 (X25-6040-11)
DESTINATION UNIT No. ABB. COUNTRY K2 U.S.A. 040-11 P2 CANADA
KRF-V7771D (X25-6XXX-XX) J2
P1
DESTINATION COUNTRY JAPAN PX GENERAL MARKET CHINA CHINA ABB. J Y1 M1 C1 C1 UNIT No. 040-01 042-91 040-21 133-00
KRF-V8881D (X25-6XXX-XX)
DESTINATION COUNTRY GENERAL MARKET CHINA CHINA ABB. M2 C2 C2 UNIT No. 040-22 133-01
VIDEO
1
AV AUX
1
Lch WH2 CN32
V 9 9 1 V V 1 9
Rch
200mV/47k
CN29
9 1
CN25
13 V V 1 13 1 1
CN26
4 V V 4 1
CN22
20 V V 1 20 1 1
CN28
4 V V 4 1
E2
13
J4
(X25- ) (D/7)
J11 (VIDEO/COMPOSITE) 1 PLAY IN VIDEO 1
VR-2090 (K2,P2) ONLY
J5 Rch 1 SECOND ROOM PRE OUT (ROOM B) Lch 2
CN7
CN11
CN27
CN2
CN10
WH5
V 1
PLAY IN J601 FM 75
1 2
TUNER UNIT (X11-3800-XX) (C/7) (X11-3813-00) (C/7)
VR-2080 (X11-3800-10)
DESTINATION UNIT No. COUNTRY ABB. U.S.A. K 00-10 CANADA P1
CN11
13
VIDEO 1
(X25-604X-XX) (B/7) (X25-6133-0X) (B/7)
VR-2080 (X25-6040-10)
DESTINATION COUNTRY U.S.A. CANADA ABB. K P1 040-10 UNIT No.
2 REC OUT
XS8/ SL16
S1
REC OUT
J15 3 PLAY IN VIDEO 2 4 REC OUT J9
040-11
1 2 3
GND AM
3 4
SL16 TEXT
VR-2090 (X11-3800-11)
E601
DESTINATION UNIT No. COUNTRY ABB. U.S.A. K2 00-11 CANADA P2
VIDEO 2 PLAY IN
VR-2090 (X25-6040-11)
DESTINATION COUNTRY U.S.A. CANADA ABB. K2 P2 UNIT No.
(X11-3800-XX) (B/7) (X11-3813-00) (B/7)
(AUDIO) Rch 1 J3
J16
4 5
SYSTEM CONTROL J17
6 7 8
SURROUND UNIT (X08-285X-XX) (X08-2903-XX)
KRF-V7771D (X08-2XXX-XX)
DESTINATION UNIT No. COUNTRY ABB. JAPAN J 850-01 PX Y1 852-91 GENERAL MARKET M1 850-21 CHINA C1 CHINA C1 903-00
KRF-V7771D (X11-38XX-XX)
USED (M1,Y1,C1,M2,C2) TYPE
S601 CH SPACE DE-EMPHASIS
DESTINATION UNIT No. COUNTRY ABB. JAPAN J 00-01 Y1 PX GENERAL MARKET M1 00-21 CHINA C1 CHINA C1 13-00
1
1
VIDEO 3 1 PLAY IN
VIDEO 4 PLAY IN Lch 2 J11 CD COAXIAL
9
J5
KRF-V7771D (X25-6XXX-XX)
DESTINATION COUNTRY JAPAN PX ABB. J Y1 C1 C1 UNIT No. 040-01 042-91 040-21 133-00
E9
WH3
E10
VIDEO 4 2 PLAY IN Rch 3
VIDEO 3 KRF-V8881D (X11-38XX-XX)
DESTINATION UNIT No. COUNTRY ABB. GENERAL MARKET M2 00-21 CHINA C2 CHINA C2 13-00
KRF-V8881D (X08-2XXX-XX) VIDEO4 COAXIAL
DESTINATION UNIT No. COUNTRY ABB. GENERAL MARKET M2 850-22 CHINA C2 CHINA C2 903-01
GENERAL MARKET M1 CHINA CHINA
9
9
3 MONI A MONITOR OUT
VIDEO 3 PLAY IN Lch 4 J4
KRF-V8881D (X25-6XXX-XX)
DESTINATION COUNTRY CHINA ABB. C2 C2 UNIT No. 040-22 133-01
VIDEO 4 CN5
1 V 15 1 V
DIGITAL IN
A1
OUT 1 2 3
VR-2080 (X08-2850-10)
DESTINATION UNIT No. COUNTRY ABB. U.S.A. K 850-10 CANADA P1
GENERAL MARKET M2 CHINA
CN11
15
VR-2090 (K2,P2) ONLY
J7 SECOND(B) ROOM VIDEO
11
Rch 1 VIDEO 2 PLAY IN Lch 2
VIDEO3 OPTICAL
GND VDD
VR-2090 (X08-2850-11) A2
OUT 1 2 3
DESTINATION UNIT No. COUNTRY ABB. U.S.A. K2 850-11 CANADA P2
WH2
WH3
MONITOR OUT
E18
1
VIDEO2 OPTICAL Rch 3 VIDEO 1 REC OUT Lch 4
GND VDD
WH4
A3
OUT 1
USED VR-2090(K2,P2)
USED KRF-V7771D(J,M1,C1)/ KRF-V8881D(M2,C2)/ VR-2090(K2,P2)
DIGITAL OUT OPTICAL Rch 5 VIDEO 1 PLAY IN Lch 6
GND VDD
2 3
1
WH4
V
CN19
11
E3
1 15
1
WH3
19
20
KRF-V7771D/V8881D/VR-2080/2090
1
KRF-V7771D/V8881D/VR-2080/2090
(X25-) (E/7)
1
WIRING DIAGRAM
USED (J,K,P1,K2,P2,C1,C2) TYPE (X07- ) (E/8)
5 5: (J) 100V 50/60Hz (K,P1,K2,P2) 120V 60Hz (C1,C2) 220V 50Hz
E7
WH1
E6
23
3
T1
1
0V WH32 WHT WH31 RED
F1 9 F2 1 9
22 21 20
1
J1 +
EXCEPT (K,P1,K2,P2) TYPE (X07-) (B/8)
Lch
WH14 RED 17
USED (M1,Y1,M2) TYPE (X07- ) (E/8)
6 5 120V 0V WH25 BLU
19 18
F3
1 -
F4
(X07-) (F/8)
S2
220V240V
A SP. CN51 FFC
V V
WH16 YEL WH18 BLK
16 15 14
CN10
2 + FRONT SP. + 3 Lch Rch
WH17 WHT WH15 GRY
4
120V
WH26 ORG 110V120V
13 12 11 3 2 0V 0V WH23 WHT WH21 YEL
WH27 BRN
WH24 GRY
E5
1 15
1 V V
9
1 V V
18
1 V V
15 29
29
-
(X11- ) (E/7)
WH6
V 1
B SP.
15
J2 Rch 1 J12 REC OUT
1
9
1
18
1
VR-2090(K2,P2) ONLY
CN3
CN4
CN1
4 +
1
(X07- ) (C/8)
Rch
1 F5
WH28 YEL
WH30 VIO
CN23
CN24
CN21
WH29 RED
EXCEPT (K,P1,K2,P2) TYPE
10
J11
W W
OUTLETS
CN14
15
RELAY CONTROL 12V 20mA TV ON/OFF SENSOR 5V 10mA
J2 Lch 2 CD2/TAPE2 Rch 3 PLAY IN Lch 4 CN1
Cch 10 9 8 7 6 5 4 3 2 1
CN11 + 1 SURROUND SP. 2 + CN6 + 3 CENTER SP.
3
WH6
V
E6
6
(M1,Y1,M2) TYPE ONLY
F6 (K,P1,K2,P2) : AC120V 60Hz (M1,Y1,M2) : AC110-120V/220-240V~ 50/60Hz (C1,C2) : AC220V~ 50Hz (J) : AC100V 50/60Hz 1
Lch
6
(X11- ) (G/7)
P1 P2
CN8
2
1 1
J13 IR RECEIVER IN 12V 20mA IR OUT LCD REMOTE J1 Rch 1 REC OUT Lch 2 MD/TAPE IDLE TEST PIN
SRch
Rch
1 V
Rch
WH6
1
E8
3
PHONES J21
T1
CN16
9
WH3
V V
USED KRF-V7771D/V8881D (X07-) (D/8)
WH19 YEL
VR-2090(K2,P2) ONLY
J14
Rch 3 PLAY IN Lch 4
DESTINATION UNIT No. ABB. COUNTRY K U.S.A. 00-10 CANADA P1
WH20 BRN
1
E11 KRF-V7771D (X11-38XX-XX)
DESTINATION UNIT No. COUNTRY ABB. JAPAN J 00-01 PX Y1 GENERAL MARKET M1 00-21 CHINA C1 CHINA C1 13-00
WH11
1
E13
3
TS1 105 C
P3
3
IR REPEATER OUT
J6 Rch 1
POWER AMPLIFIER UNIT (X07-294X-XX) (A/8) (X07-2983-00) (A/8)
VR-2080 (X07-2940-10) SURROUND
DESTINATION UNIT No. COUNTRY ABB. U.S.A. K 40-10 CANADA P1
(X07-) (H/8)
TEMP. SW (65 C)
1
Rch 5 CD1
VR-2090 (X11-3800-11) Lch 6
DESTINATION UNIT No. COUNTRY ABB. U.S.A. K2 00-11 CANADA P2
E12
3
WH12
1
E14
3
TS1 65 C
(X11- ) (D/7)
1 1 1
(X11- ) (F/7)
1
Lch 2
VR-2090 (X07-2940-10) 3 CENTER PRE OUT SUB 4 WOOFER KRF-V8881D (X07-29XX-XX)
DESTINATION COUNTRY GENERAL MARKET CHINA CHINA ABB. M2 C2 C2 UNIT No. 40-21 43-01 83-00 DESTINATION UNIT No. COUNTRY ABB. K2 U.S.A. 40-10 CANADA P2
CN17
5
WH4
V 5 1 V
E5
E8
4
3
4
1
V V
WH5
KRF-V8881D (X11-38XX-XX) E7
DESTINATION UNIT No. COUNTRY ABB. GENERAL MARKET M2 00-21 CHINA C2 CHINA C2 13-00
1
CN7
COOLING FAN
(X25- ) (G/7)
KRF-V7771D (X07-29XX-XX) CN12 WH1 E1
DESTINATION UNIT No. COUNTRY ABB. JAPAN J 40-01 PX Y1 42-91 GENERAL MARKET M1 40-21 CHINA 43-01 C1 C1 83-00 CHINA
DISPLAY UNIT (X25-604X-XX) (C/7) (X25-6133-XX) (C/7)
1
1
E16
4
WH7
4
E17
CN33
1 V 13
15
15
E2
1 15 1
E10
15
WH2
WH10
VR-2080/2090(K) KRF-V7771D/V8881D(M)
CN13
13 V 1
CN15
15 V
WH10 FFC FFC
S1
V
E4
TONE UNIT (X11-3800-XX) (A/7) (X11-3813-00) (A/7)
VR-2080 (X11-3800-10)
SLch Lch
(X07-) (G/8)
TEMP. SW (105 C)
POWER
9
21
22
A
B
C
D
E
F
G
H
I
J
PC BOARD(Component side view)
1
X07-294X-XX A/8 (J70-1153-11)
1
X07 H/8
1
29
3
3
1
B
B
E
E
E
E
B
B
B
B
E
E
E
E
B
B
2
3
1
X07 G/8
B
B
E
E
E
E
B
B
B
B
E
E
E
E
B
B
X07 B/8
B B
3
3 B B E E E E B B
1
E
E
X07 C/8
O G I
X07 E/8
4
FRONT SPEAKERS L
A
R
B
R
1
10
B
5
L
E
B
E
B
E
B
E
E B
B
E
B
R
B E B B E
E
SURROUND SPEAKERS
E E B
B
B
E
E B
B
E
B
E
B E
L
B
E
B
AC OUTLET
E
B
E
E
X07 F/8
B B
E
X07 D/8
POWER
1
6
CENTER SPEAKER
E
3 1
1 B E
15 B B B
1
6 E 3 B 1 6
E
E
E
1
7
23
24
Refer to the schematic diagram for the value of resistors and capacitors.
2
K
L
M
N
O
P
Q
R
S
T
PC BOARD(Component side view)
1
2
X08-285X-XX (J70-1143-11)
1 15 BE E B 13 EB B E EB EB EB 1 E B 21 16 20 1 80 21 20 1 80 8 14 44 1 34 33 8 9 B E EB 1 14 11 20 7 32 17 E 1 9 E 28 15 10 1 EB 9 1 1 16 16 B 8 1
XS8 SL16
E B
XS8 SYSTEM CONTROL SL16
B
3
1 81 5 80 51 50 40 41 60 61 40 41 60 1 7 61 O G I 11 12 23 22 14 8
SL16 TEXT
1
100 1 1 28
31 30
I G O O 41 40 21 20 8 1 5 41 3 5 4 8 14 1 4 1 16 1 16 O G I G 8 8 9 60 61 80 1 20 1 9 I 41 40 21 20 11 10 8 5 5 8 4 1 5 8 4 5 1 8 1 4 7 1 G I O G I
OPTICAL
DIGITAL OUT
4
VIDEO 2 OPTICAL
14
15
BE O G I
60
61
80
1
VIDEO 3 OPTICAL DIGITAL IN VIDEO 4 COAXIAL
8
1
5
9
16 O 1 11 1 15
1 1 15
13
15
1
CD1 COAXIAL
6
7
Refer to the schematic diagram for the value of resistors and capacitors.
25
26
U
V
W
X
Y
Z
AA
AB
AC
AD
PC BOARD(Component side view)
X11-3800-10 A/7 (J70-1198-11)
1
BE
EB BE BE BE
EB EB EB 5 16 8 EB EB 1 BE 4 1 4 1 8 1 1 BE 8 9 EB EB EB EB EB
X11 F/7
4
R PRE OUT L
EB
8 BE 8 5
5
CENTER SUB WOOFER
EB 1 14 1 4
2
28 15 5
BE
1 16
8
CD2/TAPE2/ MONITOR
REC OUT
1 4
BE
8
1
X11 D/7
4 1 B
8
5 8
5
9 E
AUDIO
1
4 1
4 1 8 15 28 B E
PLAY IN
BE
8
5
BE
15 1 BE 1 14 BE 4 14 1
REC OUT
3
MD/TAPE1
8 15 1 BE
5 8
5
5
20
11
PLAY IN
28
4 1
4 1 10 1 8 1
CD1
1 15 18 1 1 9
4
X11 B/7
SECOND ROOM PRE OUT
BE
1
9 8 1
X11 G/7
16 3 9 5 4 8 1
14
1
5
X11 C/7
1
VIDEO4 PLAY IN
15
AUDIO
ANTENNA
6
VIDEO2 PLAY IN
VIDEO1 REC OUT
9 22 12 8
TV ON/OFF SENSOR IR REPEATER OUT
CH. SPACE DE EMPHASIS
VIDEO1 PLAY IN
20 4 1 1
7
27
28
Refer to the schematic diagram for the value of resistors and capacitors.
9
EB BE
IR RECEIVER IN RELAY CONTROL
1
BE
BE
EB
BE
VIDEO3 PLAY IN
EB
EB
EB
EB
BE
BE
EB
28 5 8
PHONES
1
15
1
1 2 1 16 30 1 15 5
X11 E/7
IR OUT LCD REMOTE
15
4
5 8 1
4 1
1 16
8 16 9 8 1 11 1
AE
AF
AG
AH
AI
AJ
AK
AL
AM
AN
PC BOARD(Component side view)
X25-604X-XX A/7 (J70-1138-11) X25 D/7
PLAY IN
1
VIDEO1 VIDEO2
1 9 E B
R PHONO
5 4
8 1 9 1 B E E B E 5 4 B B E
B
E
REC OUT
L
EB EB
EB
8 1 15 1 18
1
PLAY IN
1
2
E E EB
B B
E E
B B
E E
B B
E E
B B
E E
B B BE EB BE EB B E EB E B B E E B E B E B BE EB B E B E B E E B E B 1
VIDEO
EB
EB
BE
BE
BE
BE
BE
9
REC OUT
EB
VIDEO3
PLAY IN
20 1
EB 1 4 B E B E B E B E B E B
VIDEO4
B 15 28 7 1 14
E
B
E
B
E
B
E
B E
E BE
E
PLAY IN
E
8
3
14
1
G 29
O
I
9 O O I G G I 13 1
1
SECOND ROOM VIDEO
15 1 1 13 4 1
1
4
X25 F/7
X25 B/7
4 1 13 1
X25 E/7
X25 C/7
VIDEO1
PLAY IN
EB 16 9
18 1
10
9
R
9 1 1 1 63 1
EB
15
B
E
B
E
B
B
E
B
MONITOR OUT
1
7
5
9 11
REC OUT
1
8 1 BE EB
L
AUDIO
4 51 50 80 81 1 31 30 1 100 EB 1 13 1 4
PLAY IN VIDEO2
EB 9 16 7 1 1 8 10
S1 VIDEO
16
6
VIDEO3 PLAY IN VIDEO4 PLAY IN
EB 16
EB
9
9 1 15 1 BE 8 EB EB BE 1 4 EB EB
8
1
MONITOR OUT
BE
EB 8 5
7
X25 G/7
Refer to the schematic diagram for the value of resistors and capacitors.
29
S1 VIDEO
REC OUT
V
EB
8
1
30
AV AUX
A
TUNER UNIT (X11-3800-XX) (C/7) (X11-3813-00) (C/7)
B
C
D
T.METER VREF
E
F
G
H
I
J
CN12
2
1 X C625 VR601 10K C621 3.3u35 C627 X C680 10u25 C624 X R625 + C626 0.022 C629 X R627 2.2u35 C628 X R628 2.2u35 X C679 X C631 X C630
1
L609 10uH C639 6P C641 22P X R623 C640 2P
FM TUNED ADJ
C619 33u10
C620 0.047
C618 47P
C622 0.047
+
C633 0.012 0V [0V] + C637 10u10 + 4.3V (4.3V) 17 16 R633 1K C638 10u10 + C634 0.012
Q603
R631 47K
+
0V
D601
C623 10u16
+
FM, MPX AM SYSTEM
0V 24 (1.4V) 3.5V (0.4V)
0.2V [0.6V]
R630 560
2.1V 30 (2.0V)
3.6V 26 (3.6V)
0V 25 (1.2V)
3.6V 29 (3.6V)
3.6V 28 (3.6V)
3.6V 27 (3.6V)
IC601
3.3V 20 (3.3V) 4.3V 19 (4.3V) 3.3V 21 (3.3V) 2.9V (2.9V)
22
X C687 1000P
4.3V 18 (4.3V)
C636 0.01
23
R642 10K
0V [0V]
Q604 EMPHASIS 75uS: ON 50uS: OFF D
2200P R662 +B 15 1.6V 13 1.0V 14 0.5V 16 1.6V +B R669
PILOT DETECTOR
C661 33P
R634 1K
C667 10u16
P-DET BUFF
2
AM IF
AGC
STEREO SW MUTE
+
+
R668 C659 47 47u16
OSC
C668 0.47u50
ALC
AM
AM MIX
AM RF.AMP
C658
50uS [75uS]
C669 0.22
C657 2200P
R667 9.1K
X602
DECODER ANTI-BIRDIE
R666 9.1K
L601
REG
C660 10P
+
1.6V 8.1V
DET
R671 220 1/4W 9 1.6V 10 1.0V 11 1.0V
FF 19K 8 PILOT DET
+B
C675 4P
L602 1uH
SD COMP AM S-METER
VCO 304KHz
FF 38K
FF 19K 2
8.1V
12
R683 1K
(J) TYPE A601 (W02-2621-05)
FM FRONT-END
FM S-METER
S-CURVE
AM/FM IF-BUFF TUNING DRIVE STEREO DRIVE
+B
1/8
VCO AGC
MIX
R3 33K R4 33K
DISTORTION (ST)
VT 5 C8 0.1 IFT
GND VCC
4.3V (0V)
AM STEREO DETECTOR
RF AMP
C2 15P R1 100K
9
10
0V (2.8V) 12
0.5V (0.5V) 13
14
15
2
3
4
5
6
7
8
R13
470K- 680 1.2M
C3 3-10P
L1
D2
C1 L2 3-10P
C18 180P D1
C6 4P
D4
3.6V (3.6V)
8.0V (8.0V)
3.6V (3.6V)
3.6V (3.6V)
8.0V X R614 (8.0V)
3
3
L5
FET
L3 L4
11
1
1
ANT1
R2 0-100
C4 5P
TR1
IF AMP
IF-OUT 7
3.5V
R635
15.0V
27P
R616 1.2V 22 (1.2V)
0V (0V)
0V (0V)
C7
0V (4.9)
6.9V (6.9V)
180P C5 1000P
C19
2 ANT2 GND
6.9V (3.6V)
+B
SIGNAL QUALITY DETECTOR
1.3V 8
7
6
5
4
3
2
R5
C665 10u10 1.0V
C663 0.47 1.0V
R670 18K 1.0V
C616 0.47u50
R14 68 100 R7
C10
0.1
0.1
C9
VCC 6 100 C17 100P OSC 8 C610 47u16 C685 0.022 C611 0.047 + +B C681 1
1K R617 3.9K C614 10u16 0.047 C613 + C615 R618 1u50 3K C645 22P
Q606
3.7V
2.9V
R637 3.9K
C662 10u10 0.3V
D607 0V
0V
L603 R12
8.0V (8.0V)
R638
C
1
100 8.0V
Q607
+
+
R8
100
C16
D3
C14 R10 680-2.2K 27P 10K R9
2-6P
8P 0-8P L6 C12
TR3 OSC BUFFER
C676 47P
+B
D4
C20 180P
C15
18P
C607 47u16
X C608 0.01
X C682 0.01
D603
10K
L604 (GRN) +B X R615 33K
L605 (WHT) X R682 2.7K
R639
+15V
+
R620
R607
820 R610 680
4
R605 3.3K
+B C606 0.01 C605 0.01 R611 33 R612 100
R643
R603
3.3K
220
A601 (W02-2622-05)
FM FRONT-END MIX
R4 33K
6.3V 1.7V
6.9V
Q602
1.6V
C684 0.022
DISTORTION (ST)
VT C8 0.1 5 7 IF-OUT
C601 0.022
+B
R681 150 1W
+15V
R3 33K
J601
L1
RF AMP
C2 10P R1 100K
220 C603 R608
R604 680
R685 1M
0.01 33 R609 330
R13
220 C602 0.01
L5
470K- 680 1.2M
R606
R686 1M
+B
C3 0-8P
D2
C672 1u50
+15V
L2 C1 0-8P
C18 180P D1
C6 4P
27P
180P C5 1000P
C19
2 ANT2
C7
L3
L4
2
+ CF601
X C670
CF602
8200P
FET
MUTE Q610
-2.4V [0.7]
W683 L607
AM
4
4
GND
R14 68 100 R7
VCC R12 100 R11 100K680K 2-6P C17 100P
+B 6 OSC OUT 8
+
+B
R644 270 1/4W
D605
C10
0.1
0.1
C9
GND
C673 47u16
R602
3
3
GND
R5
+B
0V [0V]
C671 8200P +B
0V [0V]
-2.4V [0.7]
R674 47K
Q611
10K
R652 100
R650
C16
D3
8P 0-8P L6 C12
R675
R10 680-2.2K
R655 10K
C20 150P
R9
R654 1K X R653 X C649
C15
27P
C646 10u16
D604
+B C650 100P
C651 470P
C648 47u16
+
0V C652 R657 12 (3.0V) 100P 1K
C678 0.022
R656 1K
+
C647 1000P
+B R660 1.2K
Q615 11.2V
10.7V
R661 12K
+B +15V
-2.4V [3.5V]
R678 820
Q612
5.0V [2.7V]
R676 1.8K R677 4.7K
5.2V (5.2V)
D614
2.5V (0V)
4.1V 20 (3.0V)
0V 21 (0V)
1.0V (1.0V)
17
PLL
IC27 IC28,43 IC44 IC601 IC602 IC603
: : : : : :
TC9413P NJM4565D TC9184AP LC72131 MC13028AM
22
18
16
14
+B -B
SIGNAL LINE GND LINE +B LINE +B LINE
+B
IC602
0V 13 (0V)
2.5V (2.5V)
1.0V 19 (1.0V)
0V 15 (2.5V)
+B
E601
C688 100P
T. MUTE DRIVE
11.3V
W686 +15V
FM +B
R649 10K
REFERENCE DIVIDER PHASE DETECTOR CHARGE PUMP UNLOCK DETECTOR POWER ON RESET 1/2
SWALLOW COUNTER 1/16,1/17 4bits
Q614
+B
12bits PROGRAMABLE DIVIDER
11.5V
6
Q601,603,604,606-609 Q602,612,614,615 Q610,611 D5,6 D601 D603,606 D604 D605 D607,608,610,611,613,614 D609
: 2SC4081(R,S) or 2SC4116(Y,GR) : 2SA1576A(R,S) or 2SA1586(Y,GR) : 2SD1757K : DA204U or 1SS302 : DA204K : RD8.2ES(B2) or HZS8.2N(B2) : RD5.1ES(B2) or HZS5.1N(B2) : RD2.7ES(B2) or HZS2.7N(B2) : MA111 : RD3.3ES(B2) or HZS3.3N(B2) : 1SS133 or HSS104 : U1BC44
10.7V
C 2 B I/F DATA SHIFT REGISTER LATCH UNIVERSAL COUNTER
R659 1.2K C686 470P
R658
12K
USED (M,Y,C) TYPE
W656
6
7
8
9
10
11
1
2
3
4
5
0V (0V)
0V (0V)
0V (0V)
6.9V (6.9V)
2.6V (2.6V)
C642
27P C643 22P
7
D615
(
)
D612
C644 470P
R645 1K
3
(
)
R646 1K
4
(
)
R647 1K
5
(
)
X601 7.2MHz
4.3V (4.3V)
6.7V (0.1V)
0V (0V)
10.1V (10.3V) 0V (11.6V)
FM:100kHz 75uS AM:10kHz
CH SPACE DE-EMPHASIS S601
W662
R648 1K
6
FM:50kHz 50uS AM:9kHz
D612
5.6K
+
11.4V
AM +B
3.7V [3.5V]
D609
27P 10K
OSC BUFFER
R651
8.2K
C14
+B
E
0V [0V]
+17V
TR3
470 1/4W
5
3.9K
R6
R8
FET TR1 TR2,3 D1-3
: 2SK302 : 2SC2714 : 2SC2413 : HVU202 or 1T362
C13
OSC TR2
R688 56K
+B
X R673
FM 75
1
1
ANT1
R2 0-100
C4 3P
D611
TR1
IFT
R601 100
Q601 A
1.1V
R687 1M
0V [0V]
MPX FILTER
X R672
FM DET MPX
D613
(K,P,Y,M,C) TYPE
R619 8.2K
FM AMP
D608
+
3.3K
R640 1K W682 L606
W681
+
R636
C13
C664 W611 0.01
OSC TR2
C666 10u10
4
GND
FET TR1 TR2,3 D1-3
: 2SK302 : 2SC2714 : 2SC2413 : HVU202 or 1T363 : HSU277 or 1SS356
4.3V
C632 10u16 R680 100K + C617 1u50 + +
0.4V
AM STEREO DECODER
3.9K
10K
100K680K
R6
C612 0.047
R11
XCF603
680K
FM IF
FM DET
5.6K
AM RF
R641 100K
B
1.0V
Q608
IC603
K
L
M
N
O
P
Q
R
S
T
R311 1K C309 820P R309 22K
C341 10u50 R303 16K +
CN5
( 1 ) R315 3.9K R301 680K ( 2 ) ( 3 ) ( 4 ) 15 TONE OUT Rch 14 GND 13 TONE IN Rch 12 GND 11 TONE IN Lch 10 GND 9 2 1 -16.5V TONE OUT Lch +17V -17V 4/6 17V 17V +17V +17V 17V +17V 8 7 X11-A/7 -E2
D6
C307 R307 0.018 820
C305 R305 5600P 3.9K
2SA1123 2SA992 2SC1845 2SC2003 2SC2631 2SC3244 2SC3940A
DTC124ESA 2SA1048 2SC2458
UN5119 UN5219 2SA1586 2SC4081 2SC4116
2SA1535 2SB1370 2SD2061
UN4212 UN4219 2SA1309A 2SC3311A
R313 390K
C303 C301 0.015 0.068
R345 470K
BUFFER
R663 5.6K
C654 R664 0.1 15K
C653 R665
15K
( 2 ) CK 8 7 6 5 COM 4 3
TONE
IC44
GND
LADDER RESISTOR ANALOG SW
2SB1375 2SD2012
2SD1757K
NJM4558D NJM4565D
NJM2058D
TC9184AP
A
16.3V
5 + 6
VSS
IC43 (1/2)
17V +17V 7 R317 180K
0.1
FLch
C321 1u50 + R325 8.2K
6 B-MUTE 5 DGND 4 VOLUME-STB 3 TONE-STB 2 VOLUME. TONE-CLK 1 VOLUME. TONE-DATA
LADDER RESISTOR ANALOG SW
8
1.0V 1.6V 8.1V
C655 10u16 +
LEVEL SHIFT
Q609
13bit LATCH CIRCUIT 13bit LATCH CIRCUIT
C319 560P
C317 1u50
+ R321 120K
R323 2.2K
C315 27P
D606
AMP
CODE DETECT CIRCUIT 20bit SHIFT REGISTER CIRCUIT
C656 1000P
C318 1u50
+ R322 120K
C320 560P
9 DATA
13 COM
10 STB
VDD
LADDER RESISTOR
LADDER RESISTOR
R318 180K +17V
11
12
14
15
16
+17V
C314 0.01
1
( 1 ) R308 C308 820 0.018 ( 3 ) C340 100P R343 470K
R314 390K R306 C306 3.9K 5600P C304 C302 0.015 0.068 R316 3.9K R302 680K
16.3V
+17V
IC43 4 (2/2)
17V
C310 820P
R310 22K
+
17V
R312 1K
C342 10u50
R304 16K
17V +17V
17V +17V
17V +17V
17V +17V
17V
CN11
17V +17V 15 DET 14 S-LEVEL 13 SD 12 STEREO 11 Rch 9 R266 R267 470K +17V
-16.5V
D5
100K 17V
C254 10u50 + C266 100P R252 120K R274
IC28 (1/2)
3 + 2 C267 100P C268 100P
+17V
16.3V
1
ROOM B Lch
C260 22u16 + R258
8
R256 11K C258 R272 R254 C270 100P 2.7K 22P 100
10
11
12
13
14
15
D615
GND
CLK
CS1
VSS
A-GND
OUT
ROOM B E. VOL.
10 GND
NC
16
1M
AMP
IN
DATA
R253 2.7K
C269
R251 120P
(BOTTOM VIEW)
R273
1M C265 100P
X W688
( 4 ) R269 R268 470K C263 470K 100P 9 Lch 17V +17V
+17V
R255 11K 6 5 + 4 7 C259 22u16 +
C253 10u50 +
R257
C257 22P
R271 100
8
7
6
5
4
3
2
1
100P
VDD
STB
CS2
W606
NC
IC27
+17V 17V ( 4 ) ( 5 ) ( 3 ) ( 6 )
8 7 6 5 4 3 2 1
+17V -17V T. MUTE PLLDATA PLLCLK PLLCE PLLDO DE-ENPH
16.3V
+17V R265 100K
IC28 (2/2)
ROOM B Rch
-16.5V
+17V
+17V C251 C252 150P 0.01
17V
17V
17V
VR-2090(K,P) ONLY
WH601 VR-2080 (X11-3800-10)
DESTINATION UNIT No. COUNTRY ABB. U.S.A. K 00-10 CANADA P1 A B C NO D E C608, C624 688 NO 390P C625 150P C626,670, 671,682,687 YES C630, 631 0.033 C649 C679, 680 R614 R615, R623 R625 682 100 YES 11K 18K R627, 628 4.7K R640 NO R653 2.2K R672, W606 673 3.9K NO W611,656,682,
2.2u50 3900P
VR-2090 (X11-3800-11)
DESTINATION UNIT No. COUNTRY ABB. U.S.A. K2 00-11 CANADA P2 A C B D NO E C608, C624 688 NO 390P C625 150P C626,670, 671,682,687 YES C630, 631 0.033 C649 C679, 680 R614 100 R615,640, R623 682 YES 11K R625 18K R627, 628 4.7K R653 2.2K R672, 673 3.9K W606 W611,656,682, W688 683,686 NO NO YES L604607 YES CF601, 602 L72-0596 CF603 NO A601 W02-2622 IC601 LA1837 CN12 D614 WH601 YES NO NO
YES
2.2u50 3900P
KRF-V7771D (X11-38XX-XX)
DESTINATION UNIT No. COUNTRY ABB. JAPAN J 00-01 Y1 PX 00-21 GENERAL MARKET M1 CHINA C1 CHINA C1 13-00 A C B NO NO YES D E C608, C624 820P YES 390P C625 0.01 270P C626, 687,688 NO YES C670, 671,682 C630, 631 0.015 0.018 C679, R614 680 4.7u50 6800P C649 2.2u50 3300P 270 R615, 640,682 R623 R625 NO NO 3.3K 15K 8.2K R627, 628 R653 1K 2.2K R672, 673 18K 8.2K W606 YES NO W611, W656 W682, 686 683 YES NO NO YES YES W688 L604607 CF601, 602 CF603 A601 W02-2621 YES NO L72-0531 YES W02-2622 LA1838 NO IC601 CN12 D614 WH601 YES NO NO YES
YES NO
NO
KRF-V8881D (X11-38XX-XX)
DESTINATION UNIT No. COUNTRY ABB. GENERAL MARKET M2 00-21 CHINA C2 CHINA C2 13-00 A C B YES D E C608,626, 687,688 YES C624 390P C625 270P C670, 671,682 NO C630, 631 0.018 C649 C679, 680 R614 270 R615, 640,682 NO R623 3.3K R625 15K R627, 628 8.2K R653 2.2K R672, 673 8.2K W606 NO W611, W656 W682, 686 683 NO YES YES W688 YES L604607 NO CF601, 602 L72-0531 CF603 YES A601 W02-2622 IC601 LA1838 CN12 D614 NO NO WH601 YES
NO
NO
2.2u50 3300P
+ -
R344 470K
2 3
C322 1u50 +
R324 2.2K
ANALOG SW
ANALOG SW
C316 27P
R320 43K
R319 43K
LA1837 LA1838
TC74HC4051AP TC9413P
NJU3713D
SN761200N
NJM4580L
MC14577CF NJM4565M NJM4580ED TC7W04FU
R326 8.2K
-16.5V
FRch
LM2940CT-5.0
DAN202U
UPC7805AHF
DAP202U DA204K DA204U
MA142WA UN5212
CN7
9 8 7 6 5 4 3 2 1 B-Rch IN GND B-Lch IN GND B-Rch OUT GND B-Lch OUT GND B-MUTE
X25-A/7 -CN29 5/6
TC7S04F
SI-3082V
1SS301
TC74HC123AF TC74HC153AF
TC9162AF TC9163AF TC9164AF
TC74HCU04AF
B
UPC7905AHF
TC9412AP
LC72131
TA7805S
TA79005S
NJM4565L
GND
OUTPUT INPUT
X08E3 3/6
C
W688 YES L604607 YES CF601, 602 L72-0596 CF603 NO A601 W02-2622 IC601 LA1837 CN12 D614 WH601 YES NO NO
CAUTION: For continued safety, replace safety critical components only with manufacturer's recommended parts (refer to parts list). indicates safety critical components. For continued protection against risk of fire, replace only with same type and rating fuse(s). To reduce the risk of electric shock, leakage-current or resistance measurements shall be carried out (exposed parts are acceptably insulated from the supply circuit) before the appliance is returned to the customer. The DC voltage is an actual reading measured with a high impedance type voltmeter as the AM/FM signal generator is specified to the conditions as shown in the list below. The measurement value may vary depending on the measuring instruments used or on the product. The value shown in ( ) is actual reading measured in the AM made.
MODULATION MODE FM AM CARRIER FREQUENCY 98MHz 1000(999)kHz 1kHz 400Hz DEVIATION STEREO 67.5kHz 7.5kHz(Pilot) MONO 30% MOD 60dB 60dB ANT INPUT
683,686 NO
VR-2080/2090(K) (1/6) KRF-V7771D/V8881D(M) (1/6)
KRF-V7771D/V8881D/VR-2080/2090
Y05-3570-10
U
V
W
X
KRF-V7771D (X25-6XXX-XX)
DESTINATION COUNTRY ABB. J JAPAN PX Y1 GENERAL MARKET M1 CHINA C1 CHINA C1 UNIT No. 040-01 042-91 040-21 133-00 C D M R X E Q F
Y
Z
AA
AB
AC
AD
E18 YES NO YES
KRF-V8881D (X25-6XXX-XX)
DESTINATION UNIT No. COUNTRY ABB. GENERAL MARKET M2 040-22 C2 CHINA CHINA C2 133-01 C D E Q F M R X YES E18
VR-2080 (X25-6040-10)
DESTINATION COUNTRY U.S.A. CANADA ABB. K P1 UNIT No. 040-10 C D M Q E R F X E18 NO
VR-2090 (X25-6040-11)
DESTINATION COUNTRY U.S.A. CANADA UNIT No. ABB. K2 040-11 P2 C D M Q E R F X E18 YES
NO
YES NO YES
1
NO
YES
NO
YES
+5V 5V
E J4
(X25-604X-XX) (B/7) (X25-6133-0X) (B/7)
IC90
PERFECT MACRO DETECTOR
C C107 100P R123 180K C151 0.1
5
R109 75
PLAY IN
R111 75 C108 100P C120 0.22u50 + R114 75 R112 1 R156 100
2
VIDEO 1
Y
2.0V
0.7V
5.6V
2.0V
0V
16
15
14
13
12
11
10
MONI OUT IN1
VOUT1
CYLA
CTLB
VCC
IN2
VOUT2
C109 47P
R139 10K
CTLC
9
C
C121 0.022 W185
0V
REC OUT
Y
GND
GND
4
2.0V
2.0V
0.8V
2.0V
C C103 100P
0V
3
VIDEO 2 PLAY IN
R124 180K
C152 0.1
0V
R103 75
R105 75 R125 100 C130 C104 100P C116 R106 0.22u50 1 + 100P R126 20K C138 22P
0.7V
5.6V
Q14
W220 W219 Q14,30
16
14
13
12
11
10
0.7V
CYLA
VOUT1
VOUT2
VCC
CTLB
MONI OUTIN1
GND
IN5
IN4
2.0V 3
2.0V 5
2.0V 7
+5V
C502 10u25
+5V
4
C527 100P
C141 10u50
C142 0.01
+
R503 100
W198
W223 W225
5.6V
Q54
5.0V
R509 C513 330u16 +
J5
3 C C153 0.1 C111 100P R129 180K
14 0.8V
13 5.6V
12 2.0V
16 2.0V
R510
15 0V
11 0V
10K
0V
R115 75
VIDEO 3 (PLAY IN)
10
9
R117 75 C112 100P C124 R118 0.22u50 1 + 2
CYLA
VOUT1
VCC
VOUT2
MONI OUT IN1
5
C148
Y R916 4.7K C C154 0.1 C113 100P R133 180K
W188
CTLC
IN2
CTLB
CTLD
CTLE
IC11
GND GND IN5 IN4
Y SELECTOR
C125 0.022
R120 1
IN3
+5V
R501 10K C522 10u50 C524 0.01 C506 22P
+5V 5 8 7 + 6 -
+5V
0.01
2
3
4
5
6
7
0.7V 1
8
2
3
2.0V
2.0V
2.0V
11 R160 100
10 R161 100
R119 75
0V
0V
0V
0V
0.7V
C114 100P C126 R122 0.22u50 1 + R101 C129 75 0.022 R149 10K R127 100 C150 100P
16 5.6V
VIDEO 4 (PLAY IN)
Y C
R121 75
R163 100
0V
0V
+
IC52 (2/2)
+5V
4
15
14
13
12
VCC
V3
V4
V1
V2
5V
1
Q15
0.5V 1.2V
R128 20K C137 22P
C132 22P
ROOM B
R192 560 R182 10K
C145 22P
0V
COM GND VEE INH
C
A
B
C101 100P
C525 0.01
W226
4
6
7
MONITOR OUT
Y
2
3
4
5
6
7
V-MUTE
R102 C143 75 330u16 +
0V
0V
0V
Q16
0.8V
Q31
+5V
+5V
-5.6V
5.6V
R136 R135 220 5V 5V 5V 5V C136 R130 220K 100 0.01 R162
0.6V 1.6V
R131 10K R132 10K
220
C135 10u25
Q12,31
(1 )
( 17 )
( 15 )
( 16 )
7
( 14 )
BUFFER
-5.6V
220
220
0V
C102 100P
R150 R151
4
1
8
R142 10K
Q15,16
0.7V
+
5.6V
3
+
1
5
0V
C523 10u50
6
(
)
R143 10K
+5V
9
(
(
)
R915 4.7K
C123 0.022
R116 1
R148 100
+5V
Q53
W224
0.7V 0V
Q17,55
0V
0V
360
220
5V
+
0.8V
1
R183
R184
W207
C504 0.01
5.6V
5V C503 10u50
4
6
IN3
+5V
+5V
GND
0.5V
W206
2
8
CTLD
CTLE
Q30
CTLC
IN2
BUFFER
R158 R159 220 360
5.6V
IC51
9
0V
ROOM A(COMP.) VIDEO SEL.
15 0V
Y
0V
2.0V
2.0V
(
)
R914 4.7K
R113 C122 75 330u16 W189 + C115 R104 0.022 1
2
3
4
5
6
7
1
8
C134 22P R157 10K +5V
0.7V
R516 100
IN5
IN4
IN3
C110 47P
CTLD
CTLE
IC12
+5V
R138 10K
5V
(
) )
(S1 VIDEO)
R913 4.7K
C119 0.022
R110 1
C139 0.01 C140 10u50 +
+5V
+5V
+5V 5V
IC11,12,51 CLT (CONTROL) 9 C L H L H H P2 8 D L L H H H P4 7 E L L L L H P5
+5V 5V IC90 10 V OUT VIDEO1 VIDEO2 VIDEO3 VIDEO4 CONTROL 2 A 3 B L L H H H L H L
W200
W216 W218
1 MONITOR OUT 13 A 11 B VIDEO1 VIDEO2 VIDEO3 VIDEO4 AV AUX IC53 PORT L H L H H P1 L L H H H P3
0V
W217
M
C SELECTOR
Q55
R165 10K
75
R511 22K
VIDEO MUTE
Q17
R174 75
C146 330u16 +
5.6V 5.6V
0.7V
C
+5V
( )
( )
( )
5.6V
ROOM A
IC13
ROOM B VIDEO SEL.
R181 560
IC13
CONTROL L H L H P6 L H H L P7
0.4V
Q12
2
IC52 (1/2)
5 or 7 OUT 11 A 10 B VIDEO1 VIDEO2 VIDEO3 VIDEO4 IC53 PORT
AE
AF
AG
AH
AI
AJ
AK
AL
AM
AN
AO
AP
AQ
AR
AS
X25-A/7 -CN25 +5V 5V R519 220 +5V R904 15K VOUT GND VCC +5V IN4 IN3 R928 10K +5V 5V 5/6
CONT-C
CONT-A
CONT-B
(X11-3800-XX) (B/7) (X11-3813-00) (B/7)
Q52
IC4 : TC9163AF IC5 : NJM4565D
IN2
IN1
AC
1.6V
DC
R925 100K
BUFFER
C901 0.01
C908 0.1
INV
0.3V 4.9V
D
X25-A/7 -CN26
5.6V 0.7V
R518 220
R918 1K 2.0V 1
R919 1K 2.0V 4
2.0V
D901
C906 1800P
C905 R923 C903 0.6V 47u25 5.6K 1000P + R901 22K R924 10K 2 3 +
10
R903 10K
1.9V
6 5
4.9V
8
VIDEO1 REC OUT BUFFER
VR-2090(K,P) ONLY
+5V
2
3
7
8
5
6
9
J5
220P
C72
R921 1K
R922 1K
C904 0.01
D902
R920 1K
C907 1
R927 470K
R906 2.2K
1
+ 4
4.9V
2.0V
7
CN11
C509 22P R517 10K
0V
1
MUTE FAN-ON FAN-H/L DATA CLK
220P
220K
C909 22u25
C71
R902 10K
+5V
C530 0.1
C526 0.1
1.6V
IC91(1/2)
W271
1.6V
R65
+
IC91 (2/2)
13
15
( 8)
-5V
2 3 4 5 6 7 8 9
( 7) ( 10 ) ( 11 ) ( 12 )
+5V 5V +5V 5V C507 2.2u50 +
( 6 )
Lch 2
R67 220
R71 470K R69 470K
16
SECOND ROOM PRE OUT (ROOM B)
R66
R929 100
220K
1.5V
R905 Q901 10K
Q52
Rch 1
R68 220
5/6
( 11 )
( 10 )
+17V
( )
( )
(
E
X08CN19 +17V 3/6
)
16.3V
15
17
18
19
20
21
22
23
24
25
26
27
-5V TAPE-2
R917
1K
C42 220P
W267
R44 220K
V1 PLAY
V4 PLAY
V3 PLAY
V2 PLAY
V3 PLAY
V2 PLAY
OUT
C128 0.022 W194 C127 0.22u50 +
C41 220P
R43 220K
+5V
+5V
VIDEO 4 PLAY IN Lch 2
11 FRONT-C 12 FRONT-Y
GND
8
VSS
STB
14
13
12
11
10
F
)
R46 1K C44 220P R48 220K
9
8
7
6
5
4
3
2
1
Rch 3
13 V-GND C529 0.1 C528 0.1
4
R70 470K C53 100P
17V
CN27
C43 220P
( 12 )
( 8 )
( 7 )
( 6 )
( 4 )
( 3 )
2 GND
J11 E11
1 2 3 4 5 6 7
3 GND
+17V
E J4 Rch 1
C48 220P R54 1K R56 220K
( 2 )
(X25- ) (D/7)
Lch 4
7
R523 75
100P
+5V
1
2 3 4 2 R529 C511 75 330u16 +
R524 100K
C516
100P
C47 220P
C520 2.2u50 +
+17V
6 3
R525 75
C517
100P
C50 220P
R60 220K
9
Rch 3 VIDEO 1 REC OUT F Lch 4
5
X
CONT-P GND +5V SYNC V-1 V-2 V-3 V-4 WIDE
R85 220K
C63
47P
VIDEO 2
+5V
8 7 6 5 4 1000P C910
C49 220P
R59 220K
4 REC OUT
100P
( 6 ) ( 5 )
6
R86 220K
C64
47P
E9
1 2 C510 C514 100P 0.01 3 4 12 11 10 5 6 7 8 9 11 0V 10 0V 10 11 12 13 14 15
4
C52 220P
R527 75
C519
100P
3 4 6
( 8 )
VIDEO 3 1 PLAY IN
( 4 )
1000P C911
R64 220K
17V
2
C505 2.2u50 +
2 1
Rch 5 VIDEO 1 PLAY IN Lch 6
2
D92
C51 220P
R63 220K
+5V
R172 75
C149
6 7 8 9
R522 1K
R521 1K
R520 1K
17
16
15
14
+5V
+5V
( 7 ) ( 3 )
C144 2.2u50 +
100P
18 5.6V
13 5.6V
12 5.0V
17 0V
16 0V
15 0V
14 0V
R528 100K
100P
10 11 12 7
C501
3 MONI A MONITOR OUT
( 2 )
1000P
C912
17V
+17V
VDD
CLR
CLK
DATA
P4
P3
P2
P1
STB
GND
P10
P11
P12
P5
P6
P7
P8
P9
8
2
3
5.6V 4
5
6
5.6V 7
R504 100 8
9
1
R173 100K
C147
100P
0V
0V
0V
0V
( 2 )
( 3 )
( 4 )
( 7 )
( 8 )
( 9 )
( 1 )
R926
1K
V-SEL. FAN-M CONTROL
(
)
15
D
J7 SECOND(B) ROOM VIDEO
+5V
D95
( 1 )
+5V
0V
14
1000P
C913
IC53
(
)
13
(
)
5
R61 1K
VIDEO 4 2 PLAY IN
( 3 )
D93
D94
Q IC11,12,51 IC13 IC52 IC53 IC90 IC91 : SN761200N : TC74HC4051AP : MC14577CF : NJU3713D : BA7645N : NJM4580L Q12,14,30,31,52,901 Q15-17,55 Q53 Q54 Q902 D92-95 D901,902 : 2SC4081(R,S) : 2SC4213(B) : UN5119 or DTA113ZUA : UN5212 or DTC124EUA : 2SA1611(M5,M6) : DA204K : MA111
SIGNAL LINE GND LINE +B LINE -B LINE
5.0V
R912 4.2V 1K
R
Q902 5V AVR
+5V
4.9V
(
)
(
)
1
( 2 )
J9
4.7u50
IC5 (2/2)
-16.5V
4
150P
+5V
C57
3
17V
WH3
E10
6 5
C68
R62 1K
(
)
R57 220
R87 100 R88 100 + 7
100P
C67
(
)
(
)
7
CONT-A CONT-B
( 6 )
3 PLAY IN
( 10 )
10
R58 220
C61 4.7u50 +
3 2 + -
8
1
C65 10u50 +
+17V
(
)
5
Lch 2
11
6
( 1 )
E18
C521 2.2u50 +
( 11 )
(
)
( 4 )
2 REC OUT
R53 1K
R55 220K
(
)
1
C515
3
VIDEO 1
VIDEO 2 PLAY IN
(
)
WH8
E12
(VIDEO/COMPOSITE) 1 PLAY IN
4 GND
(
)
1 GND
R45 1K
R47 220K
VIDEO 3 PLAY IN
(
(
)
R41 1K
IC4
(BOTTOM VIEW)
OUT
OUT
C54 0.01
10 FRONT-V
ROOM B: B ) B
V1 PLAY
ROOM A
( 9)
Rch 1
12
(
)
D
(AUDIO)
J3
R42 1K
DATA
VDD
CLK
+5V
VIDEO (AUDIO) INPUT SEL. (ROOM A: A
16
28
VST
A
B
B
F
A
A CN10
( 13 ) ( 16 ) ( 15 )
-16.5V
4 3 2 STB DATA CLK
X25-A/7 -CN28 5/6
G
1 DGND
CN2
20 NC 19 NC 18 NC 17 PRE OUT Rch 16 PRE OUT Lch
16.3V
+17V
+17V
IC5 (1/2)
ROOM B LINE BUFF
15 ROOM B BUF Lch 14 ROOM B BUF Rch 13 GND 12 ROOM A SEL Lch 11 ROOM A SEL Rch 10 GND X25-A/7 -CN22 5/6
C55 150P
C62 +
+ C66 10u50
H
CAUTION: For continued safety, replace safety critical components only with manufacturer's recommended parts (refer to parts list). indicates safety critical components. For continued protection against risk of fire, replace only with same type and rating fuse(s). To reduce the risk of electric shock, leakage-current or resistance measurements shall be carried out (exposed parts are acceptably insulated from the supply circuit) before the appliance is returned to the customer. The DC voltage is an actual reading measured with a high impedance type voltmeter with no signal input. The measurement value may vary depending on the measuring instruments used or on the product.
-17V
( )
( )
( )
VR-2090(K,P) ONLY
9 8 7 ROOM B SEL Rch ROOM B SEL Lch GND VIDEO1 REC Lch VIDEO1 REC Rch VIDEO2 REC Rch VIDEO2 REC Lch -17V +17V
( )
( )
( )
( )
( 6 ) ( 5 )
6 5 4 3 17V 2 1
+17V
+B -B
VR-2080/2090(K) (2/6) KRF-V7771D/V8881D(M) (2/6)
KRF-V7771D/V8881D/VR-2080/2090
Y05-3570-10
AT
(X08-285X-XX) (X08-2903-XX)
AU
AV
AW
AX
AY
AZ
BA
BB
BC
BD
BE
BF
BG
BH
1
B +B
-B +B
-B +B
+B +B
+B
+B
+B
(
(
(
(
50
51
DTS/AC-3 DIGITAL SEL.
B +B C884 47P R962 220 DSP SELCGTER R571 61 5.0V 10K
50
51
IC60,89
(3) +B
R973 C909 0.1 +B 220
C910 47P
)
)
)
)
+B
C558 0.1
IC90
1000P 67 65 64 63 62 14 13 11 77 12 73 62 63 64 65 78 25 24 23 22 77 20 76 67 +B +B +B 9 5.0V 8 5.0V 7 5.0V 6 5.0V 4 5.0V 3 5.0V 2 0.4V D2 1 0.4V D1
C501
25
24
23
22
79
78 ) CAS WE
68 )
8 GND 1.5V 9 OUT2 1.5V 10 7 1.1V (5) OUT1 AC-3 IN2 5.0V 11 6 1.1V (1) DTS IN2 AC-3 IN1 5 5.0V 12 DTS IN1 GND 4 13 GND GND 3 0V 14 GND A 2 15 0V B G 1 16 GND VCC +B
+B 80 79 78 77 71 69 68 67 +B ( 80 5.0V ) ( ) 79 5.0V ( ) 78 5.0V ( ) 77 5.0V ( 71 0.4V 70 5.0V ) ( 69 0.4V ) ( ) 68 0.4V ( ) 67 0.4V
5.0V
+B 10 VCC
4
14
13
12
11
10
IC59 INPUT IC56 INPUT IC52 INPUT
2
14
5
27 5.0V
26 5.0V
25 2.5V
27 2.5V
26 2.5V
24 2.5V
29 4.2V
23 2.5V
28 2.8V
21 2.5V
24 5.0V
22 5.0V
20 2.5V
23 2.5V
21 2.5V
19 2.5V
22 5.0V
20 5.0V
18 2.5V
19 2.5V
VCC
2CK
2QA
2CLR
2QB
2QC
2QD
0.01
25 0V
28
32
31
+B
1CLR
GND
WE
VCC
A13
A11
OE
A8
A9
A10
CS
D8
D7
D6
D5
D4
WE
VCC
A14
A13
A11
OE
NC
A8
A9
A10
D7
D6
D5
D4
1QC
1QD
1QA
1QB
1CK
76
75
74
73
72
66
65
64
63
62
+B
CE
D3
GPI00
GPI01
GPI02
MCAS
MRAS
GPI03
MWR
MRD
GNDD
MD0
VCCD
MD1
MD2
MD3
GNDD
MD4
MD5
MD6
MD7
DR
IC55
+B A4 A5 A6 A7 VSS D0 D1 D2 A1 A0
1M DRAM
VSS 20 C527 +B C528 0.1 7 6 +B 8 5 GNDS 54 0.1 L59 MA13 GNDA VCCA VCCQ +B MA12 9 0.1 OE D3 D4 10 ( 69 ) A8
VSS
A14
A12
A16
A15
D1
D2
D3
A7
A6
A5
A4
A3
A2
A1
A0
A7
A6
A5
A4
A3
11
12
13
14
15
5.0V 16
5.0V 17
0.4V 18
11 ( 71 )
2 3 4
2.5V 1
2.5V 2
2.5V 3
2.5V 4
2.5V 5
2.5V 6
2.6V 7
2.8V 8
5.0V 9
4.2V10
2.5V11
2.5V12
2.5V13
14
5.0V 2
2.8V 4
2.5V 5
2.5V 6
2.5V 7
2.5V 8
2.5V 9
2.5V10
2.5V11
4.9V12
2.5V13
2.5V14
2.5V15
( 77 )
16
18
19
18
16
14
13
12
11
71
69
68
80
19
20
22
23
24
25
71
69
C885 47P
+17V
-17V
C907 10u50
WH3
CH-SPACE PLL-DO X11-C/7 -CN11 1/6 PLL-CE PLL-CLK PLL-DATA T MUTE -16V +16V T Lch TGND T Rch STEREO SD S LEVEL DE OUT
E3
( ) 2 3 4 5 6 7 8 9 R832 100 R831 100 R830 100 R829 100 32 29 27 28 26 ( ) 1 75
20 5.0V
19 5.0V
18 5.0V
+B 16 5.0V