JVC HR-S7850EU, HR-S7851EU Service Manual
SERVICE MANUAL
VIDEO CASSETTE RECORDER
HR-S7850EU/S7851EU
INSERT A.DUB
625
Regarding service information other than these sections, refer to the HR-S8850EU service manual (No. 82863).
Also, be sure to note important safety precautions provided in the service manual.
SPECIFICATIONS
GENERAL
Power requirement : AC 220 V – 240 V` , 50 Hz/60 Hz
Power consumption
Power on : 22 W
Power off : 3.8 W
Temperature
Operating : 5°C to 40°C
Storage : –20°C to 60°C
Operating position : Horizontal only
Dimensions (WxHxD) : 400 mm x 94 mm x 278 mm
Weight: 3.6 kg
Format : S-VHS/VHS PAL standard
Maximum recording time
(SP) : 240 min. with E-240 video cassette
(LP) : 480 min. with E-240 video cassette
(EP) : 720 min. with E-240 video cassette
VIDEO/AUDIO
Signal system : PAL-type colour signal and CCIR
Recording system : DA4 (Double Azimuth) head helical scan
Signal-to-noise ratio : 45 dB
Horizontal resolution
(SP/LP) : 250 lines (VHS)
(EP) : 220 lines (VHS)
Frequency range : 70 Hz to 10,000 Hz (Normal audio)
Input/Output : 21-pin SCART connectors:
(The specifications shown pertain specifically to the model HR-S7850EU/HR-S7851EU)
TUNER/TIMER
TV channel storage capacity
: 99 positions (+AUX position)
Tuning system : Frequency synthesized tuner
Channel coverage : VHF 47 MHz – 89 MHz/
104 MHz – 300 MHz/
302 MHz – 470 MHz
UHF 470 MHz – 862 MHz
Aerial output : UHF channels 22 – 69 (Adjustable)
Memory backup time : Approx. 10 min.
ACCESSORIES
monochrome signal, 625 lines 50 fields
system
400 lines (S-VHS)
350 lines (S-VHS)
20 Hz to 20,000 Hz (Hi-Fi audio)
IN/OUT x 1, IN/DECODER x 1
RCA connectors:
VIDEO IN x 1, AUDIO IN x 1, AUDIO OUT x 1
S-Video connectors: IN x 1, OUT x 1
Provided accessories : RF cable,
Specifications shown are for SP mode unless otherwise specified.
E.& O.E. Design and specifications subject to change without
notice.
Infrared remote control unit,
“R6” battery x 2
This service manual is printed on 100% recycled paper.
COPYRIGHT © 2001 VICTOR COMPANY OF JAPAN, LTD.
No. 82872
May 2001
TABLE OF CONTENTS
DIFFERENT TABLE .............................................................................................................................................................. 1, 2
4. CHARTS AND DIAGRAMS (4-1 to 4-4)
4.1 2D DIGITAL CIRCUIT BOARD...................................................................................................................................... 4-1
4.2 2D DIGITAL SCHEMATIC DIAGRAM ........................................................................................................................... 4-2
4.3 REMOTE CONTROLLER SCHEMATIC DIAGRAM ...................................................................................................... 4-4
5. PARTS LIST
5.1 ELECTRICAL PARTS LIST
2D DIGITAL <05>. ............................................................................................................................................................ 5-1
The following table indicate main different points between models HR-S8850EU, HR-S7850EU and HR-S7851EU.
ITEM
MODEL
DIGITAL 3R USED NOT USED
MALTU BRAND REMOTE CONTROL USED NOT USED
CABLE MOUSE USED NOT USED
WINDOW color GREEN BLUE GREEN
IR CORD A, B A
HR-S8850EU HR-S7850EU HR-S7851EU
The following tables indicate different parts number between models HR-S8850EU, HR-S7850EU and HR-S7851EU.
PACKING AND ACCESSORY ASSEMBLY <M1>
REF. MODEL
NO ITEM
306 REMOTE CONTROLLER LP20873-007A LP20878-010A
306A COVER(BATTERY) LP40254-006A LP40610-002A
! 310 INST BOOK(EN) LPT0487-001A LPT0486-001A
! INST BOOK(GE) LPT0487-002A LPT0486-002A
313 LED CABLE ASSY QAL0095-005 — —
HR-S8850EU HR-S7850EU HR-S7851EU
FINAL ASSEMBLY <M2>
REF. MODEL
NO ITEM
! 501 FRONT PANEL ASSY LP10333-020D LP10333-033C LP10333-034C
501A CASSETTE DOOR LP20961-010B LP20961-007B
HR-S8850EU HR-S7850EU HR-S7851EU
Notes : Mark — is not used.
Mark is same as left.
1
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