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JVC HR-J672EU Service Manual

JVC HR-J672EU Service Manual

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SERVICE MANUAL
VIDEO CASSETTE RECORDER
HR-J672EU/J673EU
Regarding service information other than these sections, refer to the HR-J670EU service manual (No. 82784).
Also, be sure to note important safety precautions provided in the service manual.
SPECIFICATIONS
(The specifications shown pertain specifically to the model HR-J670EU/J672EU/673EU/J470EU/J472EU/J270EU/J272EU)
GENERAL
Power requirement
: AC 220 – 240 V` , 50/60 Hz
Power consumption
[HR-J670/672/673EU]
Power on
: 19 W
Power off
: 4.9 W
[HR-J470/472/270/272EU]
Power on
: 17 W
Power off
: 4.9 W
Temperature
Operating
: 5°C to 40°C
Storage
: –20°C to 60°C
Operating position
: Horizontal only
Dimensions (WxHxD) : 400 x 94 x 278 mm
Weight
: 3.5 kg
Format
: VHS PAL standard
Maximum recording time
(SP)
: 240 min. with E-240 video cassette
(LP) [HR-J670/672/673/470/472EU only]
: 480 min. with E-240 video cassette
VIDEO/AUDIO
Signal system
: PAL-type colour signal and CCIR
monochrome signal, 625 lines 50 fields
Recording system
: DA4 (Double Azimuth) head helical scan
system [HR-J670/672/673/470/472EU]
Rotary two-head herical scan system
[HR-J270/272EU]
Signal-to-noise ratio
: 45 dB
Horizontal resolution
: 250 lines
This service manual is made from all recycled paper.
COPYRIGHT © 2000 VICTOR COMPANY OF JAPAN, LTD.
Frequency range
: 70 Hz to 10,000 Hz (Normal audio)
20 Hz to 20,000 Hz (Hi-Fi audio)
[HR-J670/672/673EU only]
Input/Output
: 21-pin SCART connectors :
IN/OUT x 1, IN/DECODER x 1
RCA connectors: AUDIO OUT x 1
[HR-J670/672/673EU only]
TUNER/TIMER
TV channel storage capacity
: 99 positions (+AUX position)
Tuning system
: Frequency synthesized tuner
Channel coverage
: VHF 47 – 89/104 – 300/302 – 470MHz
UHF 470 – 862MHz
Aerial output
: UHF channels 22 – 69 (Adjustable)
Memory backup time : Approx. 10 min.
ACCESSORIES
Provided accessories
: RF cable,
Infrared remote control unit,
"R6" battery x 2
Optional accessories
: Satellite Controller RM-SD1
Specifications shown are for SP mode unless otherwise specified.
E.& O.E. Design and specifications subject to change without notice.
No. 82788
February 2000

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Summary of Contents for JVC HR-J672EU

  • Page 1 SERVICE MANUAL VIDEO CASSETTE RECORDER HR-J672EU/J673EU Regarding service information other than these sections, refer to the HR-J670EU service manual (No. 82784). Also, be sure to note important safety precautions provided in the service manual. SPECIFICATIONS (The specifications shown pertain specifically to the model HR-J670EU/J672EU/673EU/J470EU/J472EU/J270EU/J272EU)
  • Page 2 DEMODULATOR CIRCUIT BOARD ..........................4-1 DEMODULATOR SCHEMATIC DIAGRAM ........................4-2 5. PARTS LIST (5-1 only) ELECTRICAL PARTS LIST ............................5-1 DEMODULATOR BOARD ASSEMBLY <14> ........................5-1 The following table indicate main different points between models HR-J670EU, HR-J672EU and HR-J673EU. MODEL HR-J670EU HR-J672EU HR-J673EU...
  • Page 3 SECTION 4 CHARTS AND DIAGRAMS DEMODULATOR CIRCUIT BOARD COMPONENT PARTS LOCATION GUIDE <DEMODULATOR> REF.NO. LOCATION REF.NO. LOCATION REF.NO. LOCATION REF.NO. LOCATION REF. CAPACITOR C6720 A D 2D TRANSISTOR R6716 B C 4C C6721 B C 2C R6718 B C 1C C6701 B C 1A Q6701 B C 1B C6722 A D 1D...
  • Page 4 DEMODULATOR SCHEMATIC DIAGRAM DEMOD C6718 OPEN TO TUNER CN6701 ( Page 4-14 ) C6722 TU MUTE OPEN OPEN R6718 OPEN C6703 OPEN C6706 R6707 OPEN...
  • Page 5 NOTE : How to find the page showing the continuative schematic diagram Example ) TO SYSCON ( Page 4- ) : Refer to the HR-J670EU service manual ( NO.82784 ) TO SYSCON ( Page 4- ) : Refer to this sevice manual When ordering parts , be sure to order according to NOTE : the Part Number indicated in the Parts List.
  • Page 6 CRYSTAL RESONATOR K6701 NQR0200-003X FERRITE BEAD K6702 NQR0200-003X FERRITE BEAD K6703 NQR0200-003X FERRITE BEAD K6704 NQR0200-003X FERRITE BEAD K6705 NQR0200-003X FERRITE BEAD K6706 NQR0200-003X FERRITE BEAD LP40077-001A BRACKET(BOARD) CN6701 QGG2502K1-10 HEADER PIN V13D11/D12 E. & O. E. No. 82788 HR-J672EU/J673EU...
  • Page 7 VICTOR COMPANY OF JAPAN, LIMITED S40894 VIDEO DIVISION Printed in Japan...

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