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JVC RX-DP20VBK Service Manual

Audio/video control receiver
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Download this manual See also: Service Manual, Instruction Manual
SERVICE MANUAL
AUDIO/VIDEO CONTROL RECEIVER
2003
7
22008
STANDBY
CC CONVERTER
STANDBY/ON
PHONES
1
PRECAUTION. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-4
2
SPECIFIC SERVICE INSTRUCTIONS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-6
3
DISASSEMBLY . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-7
4
ADJUSTMENT . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-18
5
TROUBLE SHOOTING . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-21
COPYRIGHT © 2003 VICTOR COMPANY OF JAPAN, LIMITED
RX-DP20VBK
ZONE 1
ON/OFF
RX-DP20V
ZONE 2
ON/OFF
AUDIO/VIDEO CONTROL RECEIVER

TABLE OF CONTENTS

LEARN
TRANSMIT
STANDBY
ZONE 1
ZONE 2
ZONE 1
ZONE 2
TV/CATV/DBS
VCR 1
ON/OFF
ON/OFF
STANDBY/ON
STANDBY/ON
ZONE 1
ZONE 2
LEARN
DVD
DVD MULTI
PHONO
VCR 1
VCR 2
TAPE/MD
CDR
TV/DBS
VIDEO
FM/AM
EXT 7.1CH
ANALOG/DIGITAL
EFFECT
1
2
INPUT
SOUND
LIVENESS
4
5
TEST
7
8
/P
CC CONVERTER
MASTER VOLUME
10
0
+
RETURN
FM MODE
100 +
THX
SURROUND
DSP
SURR/DSP
DIMMER
OFF
EX/ES/7.1
ANALOG DIRECT
SLEEP
DIMMER
DOOR
UP
/ REW
PLAY
FF/
DOWN
TUNING
UP
DOOR
REC
STOP
PAUSE
DOWN
TV/VIDEO
TV VOL
CHANNEL
VOLUME
MUTING
SETUP
ADJUST
MENU
MENU
TEXT
SET
DISPLAY
DVD
MENU
EXIT
LIGHT
DIGITAL
S-VIDEO
VIDEO
LÑAUDIOÑR
VIDEO
RM-SRXDP20J
REMOTE CONTROL
A/V CONTROL RECEIVER
Area Suffix
J --------------- U.S.A.
C ------------- Canada
ON
CD
3
6
9
10
TV
CATV/
DBS
No.22008
2003/7

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Summary of Contents for JVC RX-DP20VBK

  • Page 1: Table Of Contents

    SERVICE MANUAL AUDIO/VIDEO CONTROL RECEIVER 22008 2003 RX-DP20VBK LEARN TRANSMIT STANDBY ZONE 1 ZONE 2 ZONE 1 ZONE 2 TV/CATV/DBS VCR 1 ON/OFF ON/OFF STANDBY/ON STANDBY/ON ZONE 1 ZONE 2 LEARN DVD MULTI PHONO VCR 1 VCR 2 TAPE/MD TV/DBS...
  • Page 2 SPECIFICATION Amplifier Output Power At Stereo operation Front channels 120 W per channel, min. RMS, driven into 8 Ω, 20 Hz to 20 kHz with no more (Analog Direct On) than 0.02% total harmonic distortion. 120 W per channel, min. RMS, driven into 4 Ω, 20 Hz to 20 kHz with no more than 0.07% total harmonic distortion.
  • Page 3 FM tuner Tuning Range 87.5 MHz to 108.0 MHz 12.8 dBf (1.2 µV/75 Ω) (IHF) Usable Sensitivity Monaural 18.2 dBf (2.2 µV/75 Ω) 50 dB Quieting Sensitivity Monaural 38.2 dBf (22.3 µV/75 Ω) Stereo Signal-to-Noise Ratio (IHF-A weighted) Monaural 78 dB at 85 dBf Stereo 73 dB at 85 dBf Total Harmonic Distortion...

  • Page 4: Precaution

    SECTION 1 PRECAUTION Safety Precautions (1) This design of this product contains special hardware and voltmeter. many circuits and components specially for safety purpos- Move the resistor connection to each exposed metal es. For continued protection, no changes should be made part, particularly any exposed metal part having a return to the original design unless authorized in writing by the path to the chassis, and measure the AC voltage across...
  • Page 5 Importance administering point on the safety WR42 FC44 FC43 WR48 TH41 FC41 FC42 WR41 D4004 FC401 FC402 D4003 D4002 R4011 D4001 R4012 IC44 TW41 TW42 CN25 WR26 Caution: For continued protection against risk of fire, replace only with same type 8A/250V for F21, 0.5A/250V for F41 and 2A/125V for F42 and F43.

  • Page 6: Specific Service Instructions

    SECTION 2 SPECIFIC SERVICE INSTRUCTIONS This service manual does not describe SPECIFIC SERVICE INSTRUCTIONS. 1-6 (No.22008)

  • Page 7: Disassembly

    SECTION 3 DISASSEMBLY Main body section 3.1.1 Removing the top cover (See Fig.1) (1) Remove the eight screws A attaching the top cover on both Top cover sides of the body. (2) Remove the three screws B on back of the body. (3) Remove the top cover from behind in the direction of the ar- row while pulling both sides outward.
  • Page 8 3.1.3 Removing the V compo 2 board & RF remote unit & tuner unit & compu link board (See Fig.2 and 4) • Prior to performing the following procedure, remove the top Front panel assembly cover. (1) Disconnect the harness from the connector CN581 on the V compo 2 board.
  • Page 9 3.1.7 Removing the system control board (See Fig.5 and 6) • Prior to performing the following procedure, remove the top CN983 System control board cover and front panel assembly. CN977 (1) Disconnect the card wires and harness from the connector Plastic rivet CN981 Plastic rivet...
  • Page 10 3.1.9 Removing the audio signal 1 board (See Fig.8) • Prior to performing the following procedure, remove the top CN224 cover, rear panel and DSP board. CN234 CN208 CN207 (1) Disconnect the harness from the connector CN202, CN204, CN234, CN224, CN208, CN207, CN218 CN218 CN223...
  • Page 11 3.1.12 Removing the input base board Power supply CN44 (See Fig.12) (on the power CN62 1 board supply 2 board) • Prior to performing the following procedure, remove the top cover, rear panel, DSP board, audio signal 1 board, audio sig- nal 2 board, video board, S video board and V compo 1 board.
  • Page 12 3.1.15 Removing the power transformer 1 with the power supply 2 board (See Fig.14) • Prior to performing the following procedure, remove the top Power supply 2 board cover and power supply 1 board. (1) Disconnect the harness from the connector CN46 CN47 on the power supply 2 board.
  • Page 13 3.1.18 Removing the power transformer 3 with the power supply 3 board (See Fig.17) • Prior to performing the following procedure, remove the top cover, power supply 1 board, power transformer 1 and power Power supply 3 board transformer 2. (1) Disconnect the harness from the connector CN41 on the...
  • Page 14 3.1.21 Removing the power amp. Assembly (See Fig.20 and 21) • Prior to performing the following procedures, remove the top cover, rear panel, front panel assembly, system control board, DSP board, audio signal 1 board, audio signal 2 board, video Power board, S video board, V compo 1 board and speaker board.
  • Page 15 Power amp. assembly section 3.2.1 Removing the relay board & Rch amp. board & Lch amp. board & Cch amp. board & SL/SRch amp. board (See Fig.1 to 3) • Prior to performing the following procedure, remove the power top side amp.
  • Page 16 3.2.2 Removing the thermal SW 2 board (See Fig.4) • Prior to performing the following procedure, remove the power bottom side amp. assembly, relay board and each amp. board of Lch, Cch, Power ICs Heat sink Thermal SW 2 board SL/SRch, Rch.
  • Page 17 Front panel assembly section 3.3.1 Removing the FL display board & front AV in board (See Fig.1 and 2) • Prior to performing the following procedure, remove the top Front panel assembly cover and front panel assembly. Operation switch panel (1) Pull out the volume knob on the front side of the front panel assembly and remove the nut attaching the FL display board.

  • Page 18: Adjustment

    SECTION 4 ADJUSTMENT Adjustment of idling current Measuring point Alignment point Measuring condition B903 & B904 VR701 No load and No signal.Rated line voltage SURROUND : OFF B911 & B912 VR751 Room temperature : 20~25ºC B907 & B908 VR801 SLch B907 &...
  • Page 19 Idling Current graph (1/2) SL ch / SR ch SL ch SR ch Time(Min) SBL ch / SBR ch SBL ch SBR ch Time(Min) (No.22008)1-19...
  • Page 20 Idling Current graph (2/2) L ch / R ch L ch R ch Time(Min) C ch Time(Min) 1-20 (No.22008)

  • Page 21: Trouble Shooting

    SECTION 5 TROUBLE SHOOTING This service manual does not describe TROUBLE SHOOTING. (No.22008)1-21...
  • Page 22 VICTOR COMPANY OF JAPAN, LIMITED AV & MULTIMEDIA COMPANY AUDIO/VIDEO SYSTEMS CATEGORY 10-1,1chome,Ohwatari-machi,Maebashi-city,371-8543,Japan (No.22008) Printed in Japan...