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SERVICE MANUAL
SPECIFICATIONS
No.82878
September 2001
HR-J281MS/J287MS
VIDEO CASSETTE RECORDER
Regarding service information other than these sections, refer to the HR-J481MS service manual (No.82870).
Also, be sure to note important safety precautions provided in the service manual.
SERVICE MANUAL
This service manual is printed on 100% recycled paper.
COPYRIGHT © 2001 VICTOR COMPANY OF JAPAN, LTD
Specifications shown are for SP mode unless specified otherwise.
E. & O.E. Design and specifications subject to change without
notice.
GENERAL
Power requirement
Rating
: AC 110 V ­ 240 Vd, 50 Hz/60 Hz
Operating
: AC 90 V ­ 260 Vd, 50 Hz/60 Hz
Power consumption
: 14 W
Temperature
Operating
: 5
°C to 40°C
Storage
: ­20
°C to 60°C
Operating position
: Horizontal only
Dimensions (W x H x D) : 360 mm x 94 mm x 247 mm
Weight
: 3.0 kg
Format
: VHS standard
Maximum recording time
(SP)
: 240 min. with E-240 video cassette
(PAL/MESECAM)
: 160 min. with T-160 video cassette
(NTSC)
(LP)
: 480 min. with E-240 video cassette
(PAL/MESECAM)
(EP)
: 480 min. with T-160 video cassette
(NTSC)
VIDEO/AUDIO
Signal system
: PAL-type colour signal and CCIR
monochrome signal, 625 lines
50 fields
: NTSC colour and EIA monochrome
signals, 525 lines/60 fields
Recording system
: Rotary 2 head helical scan system
Signal-to-noise ratio
: 45 dB
Horizontal resolution
: 250 lines (PAL/MESECAM)
: 220 lines (NTSC)
Frequency range
: 70 Hz to 10,00 0Hz
Input/Output
: RCA connectors (IN x 1, OUT x 1)
TUNER/TIMER
TV channel storage
capacity
: 99 positions (+AUX position)
Tuning system
: Frequency synthesized tuner
Channel coverage
VHF
: (Low) 42 MHz ­ 175 MHz
(High)175 MHz ­ 470 MHz
UHF
: 470 MHz ­ 870 MHz
Aerial output
: UHF channels (Adjustable E28 ­ E60)
Memory backup time
: Approx. 6 months
Estimated figure based on supplied
fresh battery; actual performance may
differ.
ACCESSORIES
Provided accessories
: RF cable,
Lithium battery CR2025,
Infrared remote control unit,
"R6/UM-3" battery x 2,


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TABLE OF CONTENTS
DIFFERENT TABLE .................................................................................................................................................................................................. (1 only)
5.
PARTS LIST(5-1 only)
5.1 PACKING AND ACCESSORY ASSEMBLY <M1> ................................................................................................................................................ 5-1
The following table indicate different parts number between models HR-J481MS, HR-J281MS and HR-J287MS.
FINAL ASSEMBLY<M2>
REF
NO.
!
MODEL
HR-J481MS
HR-J281MS
ITEM
!501 FRONT PANEL ASSY
LP10348-021D
LP10348-016D
LP10348-017D
501A CASSETTE DOOR
LP20977-011B
LP20977-009B
501C DISPLAY WINDOW
LP20976-021A
LP20976-016A
LP20976-017A
505
DRUM SUB ASSY
LP20981-007A
LP20981-004A
HR-J287MS
The following table indicate main different points between models HR-J481MS, HR-J281MS and HR-J287MS.
MODEL
HR-J481MS
HR-J281MS
ITEM
VIDEO HEAD
4 HEAD
2 HEAD
FRAME ADVANCE & STILL
NOISELESS
REDUCED NOISE
SQPB
USED
NOT USED
FRONT IN
USED
NOT USED
HR-J287MS
MAIN BOARD ASSEMBLY<03>
REF
NO.
!
MODEL
HR-J481MS
HR-J281MS
ITEM
PW1
MAIN BOARD ASSY
LPA10130-24A1
LPA10130-21A1
R71
MG RESISTOR
­­­
NRSA02J-0R0X
R912
MG RESISTOR
NRSA02J-750X
­­­
­­­
R2006 MG RESISTOR
NRSA02J-473X
­­­
­­­
R2009 MG RESISTOR
NRSA02J-562X
­­­
­­­
C3
CAPACITOR
NCB31CK-104X
­­­
­­­
C4
CAPACITOR
NCB31CK-104X
­­­
­­­
C51
E CAPACITOR
QERF1HM-105Z
­­­
­­­
J7101 PIN JACK,FRONT IN
QNN0382-002
­­­
­­­
CN1
FPC CONNECTOR
QGF1028C2-08
QGF1028C3-04
HR-J287MS
Notes:
is same as left.
­­ is not used.
*
reference model was also changed.
1


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VICTOR COMPANY OF JAPAN, LIMITED
VIDEO DIVISION
Printed in Japan
S40894