No. 82926
July 2002
This service manual is printed on 100% recycled paper.
COPYRIGHT © 2002 VICTOR COMPANY OF JAPAN, LTD.
Regarding service information other than these sections, refer to the HR-VP690U service manual (No. 82841).
Also, be sure to note important safety precautions provided in the service manual.
HR-J790KR
VIDEO CASSETTE RECORDER
SERVICE MANUAL
ITEM
MODEL
HR-VP690U
HR-J790KR
!
REF
MODEL
HR-VP690U
HR-J790KR
NO.
ITEM
TABLE OF CONTENTS
DIFFERENT TABLE .............................................................................................................................................................................................................. 1
4. CHARTS AND DIAGRAMS (4-1 to 4-22)
4.1 BOARD INTERCONNECTIONS .................................................................................................................................................................................. 4-1
4.2 MAIN (VIDEO/AUDIO) SCHEMATIC DIAGRAM ......................................................................................................................................................... 4-3
4.3 MAIN (SYSCON) SCHEMATIC DIAGRAM .................................................................................................................................................................. 4-5
4.4 MAIN (SW.REG) SCHEMATIC DIAGRAM ................................................................................................................................................................... 4-7
4.5 MAIN (TUNER/DEMOD) SCHEMATIC DIAGRAM ...................................................................................................................................................... 4-9
4.6 MAIN (FRONT) SCHEMATIC DIAGRAM ................................................................................................................................................................... 4-11
4.7 MAIN (TERMINAL) SCHEMATIC DIAGRAM ............................................................................................................................................................. 4-13
4.8 MAIN (BS CONNECTION) AND R.PAUSE SCHEMATIC DIAGRAMS ...................................................................................................................... 4-15
4.9 DEMODULATOR SCHEMATIC DIAGRAM ................................................................................................................................................................ 4-17
4.10 MAIN AND R.PAUSE CIRCUIT BOARDS ............................................................................................................................................................... 4-19
4.11 DEMODULATOR CIRCUIT BOARD ........................................................................................................................................................................ 4-22
5. PARTS LIST (5-1 to 5-8)
5.1 PACKING AND ACCESSORY ASSEMBLY <M1> ....................................................................................................................................................... 5-1
5.2 FINAL ASSEMBLY <M2> ............................................................................................................................................................................................ 5-2
5.3 ELECTRICAL PARTS LIST ......................................................................................................................................................................................... 5-4
The following table indicate main different points between models HR-VP690U and HR-J790KR.
MAIN BOARD ASSEMBLY <03>
The following table indicate different parts number between models HR-VP690U and HR-J790KR
PACKING AND ACCESSORY ASSEMBLY <M1>
PACKING AND ACCESSORY ASSEMBLY <M1> is indicated on the parts list.
FINAL ASSEMBLY <M2>
FINAL ASSEMBLY <M2> is indicated on the parts list.
Notes : Mark -- is not used.
Mark
* reference model was also changed.
1
PW1
MAIN BOARD ASSY
LPA10130-04C1
LPA10141-01B1
COSMETIC/COLOR
MOLD-BLACK
PNT PURE/SILVER
HEAD CLEANER
NO
YES
F-1IN (COLOR)
V,LR(SLV/BLACK) V,LR(SLV/Y,W,R)
L-1IN(COLOR)
NO
V,LR(SLV/Y,W,R)
BACKUP TIME
--
3MIN
!
REF
MODEL
HR-VP690U
HR-J790KR
NO.
ITEM
MECHANISM ASSEMBLY <M4>
1
MAIN DECK ASSY
LP20821-006A *LP20821-006B
5
GUIDE POLE(SUPPLY) LP40098-001B *LP40701-001A
7
TENSION STUD BASE ASSY LP40637-002A *LP40637-002B
25
PIN
LP40100-001A *LP40100-002A
61
MOTOR GUIDE
LP30230-001B *LP30230-003D
69
CONTROL PLATE
LP10201-003E *LP10201-003G
72
TENSION ARM ASSY
LP40108-002A *LP40108-001A
88
IDLER ARM ASSY
LP40114-012A *LP40114-011B
90
CLUTCH UNIT 3
LP40593-001A *LP40593-003C
114
RELAY GEAR
LP30242-002A *LP30242-002B
115
OPENER GUIDE
LP30339-002E *LP30339-002F
119
DRIVE GEAR
LP30243-001D *LP30243-002A
122
SIDE HOLDER(L)
LP10081-002L *LP10081-002P
123
SIDE HOLDER(R)
LP10082-002M *LP10082-002V
124
LOOK LEVER(L)
LP30255-006A *LP30255-006B
151
DOOR OPENER
LP20324-003B
LP20324-003C
!
REF
MODEL
HR-VP690U
HR-J790KR
NO.
ITEM
DEMOD BOARD ASSEMBLY <14>
PW1
DEMOD BOARD ASSY
--
LPA10094-06B
!
REF
MODEL
HR-VP690U
HR-J790KR
NO.
ITEM
MINI FRONT BOARD ASSEEMBLY <28>
PW6
MINI FRONT BOARD ASSY LPA10130-01A6
--
SECTION 3
ELECTRICAL ADJUSTMENT
As for the following items, adjustment is not required in this model as follows.
Delete
3.4 Demodulator circuit
VICTOR COMPANY OF JAPAN, LIMITED
12,3-chome,Moriya-cho,Kanagawa-ku,Yokohama,Kanagawa-prefecture,221-8528,Japan
HOME AV NETWORK BUSINESS UNIT.
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