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AUDIO VIDEO SURROUND RECEIVER
KRF-V7020D/V8020D
VR-307/309/357
SERVICE MANUAL
KENWOOD badge
Knob
(B43-0302-04)
(K29-7370-02)
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–
Knob
Phone jack
(K27-2293-04)
(E11-0127-05)
Slide switch
(S62-0034-04)
Miniature phone jack
(E11-0293-05)
Phono jack (4Px2)
(E63-0046-15)
Lock terminal board
(E70-0052-05)
Font glass
(B10-3458-02)
Knob
(K29-7370-02)
Screw terminal board
Phono jack
(E63-0093-05)
(E70-0100-05)
Phono jack
Phono jack
(E63-0094-05)
(E63-1080-05)
Optical receiving module
(W02-1181-05)
Phono jack
Phono jack (6Px2)
(E63-0164-05)
(E63-0047-15)
© 1999-1/B51-5499-00 (K/K) 1895
Knob
(K29-7323-03)
Knob
(K29-7326-04)
Power cord bushing
(J42-0083-05)
Slide switch
(S62-0001-04)
Lock terminal board
(E70-0047-05)
Illustration is KRF-V7020D(Y).
Knob
(K29-7325-04)
Foot
(J02-1407-03)
AC power cord
(E30-2605-05)
AC outlet
(E03-0148-05)
Metallic cabinet
(A01-3685-01)
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Table of Contents
Related Manuals for Kenwood KRF-V7020D
Summary of Contents for Kenwood KRF-V7020D
- Page 1 AC power cord (E11-0293-05) (E63-0094-05) (E63-1080-05) (S62-0001-04) (E30-2605-05) Phono jack (4Px2) Optical receiving module AC outlet (E63-0046-15) (W02-1181-05) (E03-0148-05) Phono jack Metallic cabinet Lock terminal board Phono jack (6Px2) Lock terminal board (E63-0164-05) (A01-3685-01) (E63-0047-15) (E70-0052-05) (E70-0047-05) Illustration is KRF-V7020D(Y).
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Page 2: Table Of Contents
Battery cover (A09-1123-08) (Accessory only for regions where use is necessary.) Model name vs remote controller Remote Controller Model Destinations Parts number Model name Battery Cover KRF-V7020D X7,C7,Y7,V7,M7 A70-1268-05 RC-R0712 A09-1123-08 KRF-V8020D X8 A70-1275-05 RC-R0508 A09-0366-08 KRF-V8020D C8,I8,Y8,M8 A70-1277-05 RC-R0608... -
Page 3: Disassembly For Repair
KRF-V7020D/V8020D/VR-307/309/357 DISASSEMBLY FOR REPAIR 1. Remove the 8 screws (1,2,3), remove the rear panel. 2. Connect the GND of the rear panel and the chassis, the GND of the mounting hardware and the chassis with 2 alligators clip (4) -
Page 4: Controls
POWER is turned ON. Use to select the broadcast band. 2 MACRO key original remote control supplied with the KENWOOD and other makers to the MD/ 7 AUTO key Use to adjust the sound quality and amb STANDBY indicator Use in combination with the AUDIO, VIDEO, component you are controlling. - Page 5 2 Component operation keys TUNING (1 ¡) keys DVD player from KENWOOD. Keys 3, 4, 5, 9 and ! are given the Use these keys to operate other compo- If tuner is selected as the input source, these...
- Page 6 DSP (VISUAL IN/OUT) A.V.R VIDEO SEL A.V.R VIDEO 3 VIDEO1 IC19 VIDEO 2 VIDEO IN VIDEO1 A.V.R VIDEO 1 S-VIDEO OUT MONITOR VIDEO 1 VIDEO OUT NJM2279M NJM2279M S-VIDEO IN/OUT MONITOR 1Vp-p/75 VR-307/309/357 0.286Vp-p/75 KRF-V7020D/V8020D NJM2279M VIDEO IN/OUT 1Vp-p/75...
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Page 7: Circuit Description
KRF-V7020D/V8020D/VR-307/309/357 CIRCUIT DESCRIPTION 1. The back up item and initialization condition 1-1 Back up • POWER : POWER OFF • FRONT (L,R) LEVEL : 0dB • VOLUME LEVEL : -66dB • CENTER LEVEL : 0dB • AUDIO INPUT SELECTOR : TUNER •... -
Page 8: Block Diagram
KRF-V7020D/V8020D/VR-307/309/357 CIRCUIT DESCRIPTION 4. Microprocessor CXP82852-139Q(X09 : IC51) 4-1 Microprocessor periphery block diagram Key matrix * No. of : u -COM Port NO. KS0 P.CH DOWN ON/STANDBY SPEAKER A P.CH UP DIMMER SPEAKER B FL DISPLAY (X09) ED51 BAND LISTEN MODE... - Page 9 KRF-V7020D/V8020D/VR-307/309/357 CIRCUIT DESCRIPTION 4-2 Pin description Pin No. Pin Name Description G10,11 Display grids 10,11 None Ic test mode port. None No connect AUDIO Audio signal detection port. L=AUDIO. VOL.ENC.A Volume encoder A(clockwise) input. REMOCON Remote contol signal input. VOL.ENC.B Volume encoder B(counterclockwise) input.
- Page 10 KRF-V7020D/V8020D/VR-307/309/357 CIRCUIT DESCRIPTION Pin No. Pin Name Description FB.RLY Front B speaker relay control. H=RELAY ON. C.RLY Center speaker relay control. H=RELAY ON S.RLY Rear speaker relay control. H=RELAY ON POWER.RLY Power relay control. H=RERAY ON STANDBY.LED Standby LED control.H=LED ON DOL.DIG.LED...
- Page 11 COEFFICIENT PROGRAM U-COM INTERFACE CONT. CONT. CONTROL REGISTER SDBCK1 SDWCK1 /SDBCK0 SDBCK0 SDWCK0 SDOACKSEL SDIBCKSEL SDOBCKSEL L, R SDOB0 Ls, Rs SDIA0 SDOB1 24 * 24 Main DSP INPUT 24 * 16 C, LFE Dolby digital/ProLogic/DTS BUFFER Sub DSP SDOB2 DECODER SDIA1 SDOB3...
- Page 12 KRF-V7020D/V8020D/VR-307/309/357 CIRCUIT DESCRIPTION 5-2 Pin description Pin No. Pin Name Descriptions Vdd1 Power supply(+5V) No connect SDIB0~2 PCM output port for sub DSP Crystal oscillation port.(902:6.25~50.0MHz,912:12.288MHz) Crystal oscillation port. AVdd Power supply(+3.3V) for PLL 12~18 No connect PLL output port.
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Page 13: Speaker Setup
KRF-V7020D/V8020D/VR-307/309/357 CIRCUIT DESCRIPTION 6. SURROUND FUNCTION IC : TC9162AF(X08:IC5) (PIN NO.) ( 2 , 2 7 ) ( 3 , 2 6 ) ( 5 , 2 4 ) ( 6 , 2 3 ) ( 8 , 2 1 ) -
Page 14: Adjustment
KRF-V7020D/V8020D/VR-307/309/357 ADJUSTMENT INPUT OUTPUT RECEIVER ALIGNMENT ALIGN ITEM FIG. SETTINGS SETTINGS SETTINGS POINTS FM SECTION SELECTOR : FM 98.0MHz Minimum DISTORTION 1kHz,±68.25kHz dev. 98.0 MHz distortion (STEREO) Selector : L or R (TUNER A1) (L or R) Pilot : ±6.75kHz dev. -
Page 15: Display Unit
U.S.A. VR-357 (X08-2960-10) 0-10 Rch 4 FM: 100kHz CANADA 75uS DESTINATION SYSTEM AM: 10kHz UNIT No. CONTROL COUNTRY ABB. KRF-V7020D U.S.A. (X05-498X-XX) / (X05-5062-10) 0-10 FM: 50kHz CANADA 50uS DESTINATION SDATA DISPLAY UNIT AM: 9kHz UNIT No. COUNTRY ABB. KRF-V7020D... -
Page 16: Pc Board
PC BOARD(Component side view) POWER SUPPLY UNIT AC OUTLET SYSTEM CONTROL X00-291X-XX CENTER FRONT SPEAKER SPEAKERS X00 B/6 X00 D/6 POWER PHONES AC220- AC110- AC220- AC110- 240V 120V 240V 120V Refer to the schematic diagram for the value of resistors and capacitors. -
Page 17: Schematic Diagram
PC BOARD(Component side view) TUNER UNIT SURROUND UNIT ANTENNA X05-498X-XX X08 B/2 IC18 IC19 C279 IC16 IC17 R252 R253 C267 C277 C274 R258 C276 C275 R256 V1REC VIDEO3 VIDEO2 VIDEO1 VIDEO1 MONITOR X08-2960-10 A/2 (J70-1268-11) C204 C182 R190 R191 R189 C210 C212 R182... - Page 18 PC BOARD(Component side view) AUDIO UNIT SPEAKERS A SURROUND SPEAKERS SPEAKERS B VIDEO 1 MONITOR MD/TAPE VIDEO 1 VIDEO 2 PLAY PLAY PHONO X09-6160-10 A/3 (J70-1270-11) R324 C151 C152 C147 C148 C143 C144 C131 C132 C127 C128 C123 C124 C119 C120 C139 C140...
- Page 19 C74, UNIT No. CF1,2 L4,5 COUNTRY ABB. U.S.A. L72-0596 0-10 4.7K 22K 6.2K 0.033 LA1837 (MS2) CANADA MUTING KRF-V7020D (X05-498X-XX) / (X05-5062-10) X09-A/3 -2.2V -CN9 DESTINATION R15, R27, R72, C30, C74, UNIT No. R23 R25 CF1,2 COUNTRY ABB. 1/4W 100P...
- Page 20 (X08-296X-XX) (A/2) DIGITAL VIDEO 3 DIGITAL VIDEO 2 3.3V +3.3V +3.3V +3.3V IC15 3.3V 32kHz 44.1kHz 48kHz RESERVED CANNEL 4.8V 4.8V STATUS BITO FREQ1 DIGITAL AUDIO 100P 4.6V FREQ0 2.3V 1.5V DIGITAL 2.4V 2.3V 4.8V L,Rch 1.8V DIGITAL 2.1V 2.3V R15 220 4.7N C21 33P...
- Page 21 R2,46, UNIT No. IC15 R21-23 C22-25 D11,12 X09-A/3 59,60 COUNTRY ABB. -WH1 U.S.A. 0-10 YSS902 6.25MHz CANADA R106 KRF-V7020D (X08-2960-21) / (X08-2982-10) R198 C212 4.7u35 DESTINATION R2,46, UNIT No. IC15 R21-23 C22-25 D11,12 R108 C110 59,60 COUNTRY ABB. 7.0V 10u50...
- Page 22 TA7815S Q1,17-21,24,25,34,35,37 D1,2,4 D4SBL20UF03 TA79015S 2SC1845(F,E) S1ZB20(4101) STK411-230D or 2SB1640 D8,9 MTZJ16(B) or STK411-230K Q3-14,43,44 2SC2878(B) HZS16N(B2) STK410-030D Q15,16,22 2SA1576A(R,S) HZS8.2N(B2) or D11-14 NJM4580ED 2SA992(F,E) MTZJ8.2(B) TC9164AF Q26-29 DTC123JUA D15,20-23,26-28,30,33 MA111 (X09-616X-XX) (A/3) D16,17 1SS133 or TC9163AF 2SC3944A(R,S) IC8-12 NJM4565MD 2SA1123(S,T) or HSS104A PHONO EQ AMP...
- Page 23 +15V +15V +15V +62V +62V +62V +62V +35V +35V +35V +35V VR-307 (X09-6160-10) VR-309 (X09-6160-11) VR-357 (X09-6160-10) KRF-V7020D (X09-616X-XX) / (X09-6342-10) KRF-V8020D (X09-616X-XX) DESTINATION DESTINATION DESTINATION DESTINATION DESTINATION UNIT No. C1,2 UNIT No. C1,2 UNIT No. C1,2 UNIT No. C1,2 UNIT No.
- Page 24 0-11 L07-2567-05 E03-0148-05 YES YES NO YES CANADA CS4226KQG YSS902 LA1837 TC7W241FU 15V AVR 14.7V YSS912 LA1838 22.3V KRF-V7020D (X00-291X-XX) / (X00-2892-11) +15V DESTINATION UNIT No. USED COUNTRY ABB. (M,Y,I) TYPE GENERAL MARKET 0-20 E03-0149-05 L07-2568-05 2-91 E03-0148-05 CHINA 3-01...
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Page 25: Parts List
W193 COUNTRY ABB. 504,510 -28.7V P.CALL DIMMER SP.B U.S.A. Q501 0-10 CANADA D521 S516 S505 S501 -28.7V KRF-V7020D (X09-616X-XX) / (X09-6342-10) DESTINATION D500, UNIT No. R596 R609 C534 C535 W193 D504 D510 COUNTRY ABB. P.CALL SP.A 0-21 -28.9V GENERAL MARKET -15.9V... - Page 26 (C/6) SWITCHED TOTAL 150W MAX. AC110- AC220- AC110- AC220- 120V~ 240V~ 120V~ 240V~ X00-2910-11 VIDEO VIDEO (A/6) J 6 J 5 (21P) (B/2) M4x8 : N09-1966-05 ø2.6x8 : N09-3411-05 Push rivet : N29-0216-05 ø2.6x8(BLK) : N82-2608-45 SYSTEM VIDEO VIDEO VIDEO X08-2960-20 ø3x6 (BLK) CONTROL...
- Page 27 Description Ref. No Parts No. Description ress Parts nation marks ress Parts nation marks B60-4134-00 INSTRUCTION MANUAL(TC,RC-) M8I8 KRF-V7020D/V8020D/VR-307/309/357 B60-4139-00 INSTRUCTION MANUAL(EN,AC-3) KPYMXI B60-4140-00 INSTRUCTION MANUAL(FR,AC-3) A01-3533-01 METALLIC CABINET B60-4141-00 INSTRUCTION MANUAL(ES/TC,AC-3) A01-3685-01 METALLIC CABINET B60-4142-00 INSTRUCTION MANUAL(SC,AC-3) A01-3685-01 METALLIC CABINET...
- Page 28 New Parts New Parts Parts without Parts No. are not supplied. Parts without Parts No. are not supplied. Les articles non mentionnes dans le Parts No. ne sont pas fournis. Les articles non mentionnes dans le Parts No. ne sont pas fournis. Teile ohne Parts No.
- Page 29 New Parts New Parts Parts without Parts No. are not supplied. Parts without Parts No. are not supplied. Les articles non mentionnes dans le Parts No. ne sont pas fournis. Les articles non mentionnes dans le Parts No. ne sont pas fournis. Teile ohne Parts No.
- Page 30 New Parts New Parts Parts without Parts No. are not supplied. Parts without Parts No. are not supplied. Les articles non mentionnes dans le Parts No. ne sont pas fournis. Les articles non mentionnes dans le Parts No. ne sont pas fournis. Teile ohne Parts No.
- Page 31 New Parts New Parts Parts without Parts No. are not supplied. Parts without Parts No. are not supplied. Les articles non mentionnes dans le Parts No. ne sont pas fournis. Les articles non mentionnes dans le Parts No. ne sont pas fournis. Teile ohne Parts No.
- Page 32 New Parts New Parts Parts without Parts No. are not supplied. Parts without Parts No. are not supplied. Les articles non mentionnes dans le Parts No. ne sont pas fournis. Les articles non mentionnes dans le Parts No. ne sont pas fournis. Teile ohne Parts No.
- Page 33 New Parts New Parts Parts without Parts No. are not supplied. Parts without Parts No. are not supplied. Les articles non mentionnes dans le Parts No. ne sont pas fournis. Les articles non mentionnes dans le Parts No. ne sont pas fournis. Teile ohne Parts No.
- Page 34 New Parts New Parts Parts without Parts No. are not supplied. Parts without Parts No. are not supplied. Les articles non mentionnes dans le Parts No. ne sont pas fournis. Les articles non mentionnes dans le Parts No. ne sont pas fournis. Teile ohne Parts No.
- Page 35 D510 HSS104A DIODE YMCXIV country. Numerals do the model. D510 1SS133 DIODE YMCXIV Example: X7 shows KRF-V7020D for Australia market. "X" does all models for Australia. "7" does KRF-V7020D and VR-357. D511~522 HSS104A DIODE ABBREVIATION OF MODEL AND MASS PRODUCTION'S DESTINATIONS...
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Page 36: Specifications
(chrominance signal) ..0.286 Vp-p / 75 Ω Notes 1.KENWOOD follows a policy of continuous advancements in development. For this reason specifications may be changed without notice. 2.The full performance may not be exhibited in an extremely cold location (under a water-freezing temperature). - Page 37 (chrominance signal) ..0.286 Vp-p / 75 Ω Notes 1. KENWOOD follows a policy of continuous advancements in development. For this reason specifications may be changed without notice. 2. The full performance may not be exhibited in an extremely cold location (under a water-freezing temperature).