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SERVICE MANUAL
VIDEO CASSETTE RECORDER
01
2003
82952
HR-J692U
For disassembling and assembling of MECHANISM ASSEMBLY, refer to the SERVICE MANUAL No.86700 (MECHANISM ASSEMBLY).
SPECIFICATION
GENERAL
Power requirement : AC 120 V ~, 60 Hz
Power consumption
Power on
: 13 W
Power off
: 1.5 W
Temperature
Operating
: 5°C to 40°C (41°F to 104°F)
Storage
: -20°C to 60°C (-4°F to 140°F)
Operating position
: Horizontal only
Dimensions (W x H x
: 435 mm x 94 mm x 248 mm
D)
(17-3/16" x3-3/4"x9-3/4")
Weight
: 2.7 kg (5.9 lbs)
Format
: VHS NTSC standard
Maximum recording
time
SP
: 210 min. with ST-210 video cassette
EP
: 630 min. with ST-210 video cassette
VIDEO/AUDIO
Signal system
: NTSC-type color signal and EIA mono-
chrome signal, 525 lines/60 fields
Recording/Playback
: DA-4 (Double Azimuth) head helical
system
scan system
Signal-to-noise ratio : 45 dB
Horizontal resolution : 230 lines
Frequency range
Normal audio
: 70 Hz to 10,000 Hz
Hi-Fi audio
: 20 Hz to 20,000 Hz
Input/Output
: RCA connectors (IN x 1, OUT x 1)
COPYRIGHT © 2003 VICTOR COMPANY OF JAPAN, LIMITED.
TIMER
CANCEL
,HR-J692U
S
TUNER
Tuning system
Channel coverage
VHF
UHF
CATV
RF output
TIMER
Clock reference
Program capacity
ACCESSORIES
Provided accessories
Specifications shown are for SP mode unless specified other-
wise. E. & O.E. Design and specifications subject to change with-
out notice.
C
: Frequency-synthesized tuner
: Channels 2-13
: Channels 14-69
: 113Channels
: Channel 3, 4 or - (off)
(preset to Channel 3 when shipped)
75 ohms, unbalanced
: Quartz
: 1-year programmable timer/8 programs
: RF cable (F-type)
Infrared remote control unit
Lithium battery -CR2032
HR-J692US, HR-J692UC
HR-J692US
HR-J692UC
V16D1
No.82952
2003/01
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Table of Contents
Related Manuals for JVC HR-J692US
Summary of Contents for JVC HR-J692US
- Page 1 Frequency range Normal audio : 70 Hz to 10,000 Hz Hi-Fi audio : 20 Hz to 20,000 Hz Input/Output : RCA connectors (IN x 1, OUT x 1) HR-J692US, HR-J692UC V16D1 No.82952 COPYRIGHT © 2003 VICTOR COMPANY OF JAPAN, LIMITED. 2003/01...
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Page 2: Table Of Contents
HR-J692US HR-J692UC TABLE OF CONTENTS Instructions Important Safety Precautions ............1-3 Precautions during Servicing. -
Page 3: Precautions During Servicing
SAFETY PRECAUTIONS Prior to shipment from the factory, JVC products are strictly inspected to conform with the recognized product safety and electrical codes of the countries in which they are to be sold.However,in order to maintain such compliance, it is equally important to implement the following precautions when a set is being serviced. -
Page 4: Safety Check After Servicing
HR-J692US HR-J692UC 1.2 Safety Check after Servicing Examine the area surrounding the repaired location for damage or deterioration. Observe that screws, parts and wires have been re- turned to original positions, Afterwards, perform the following tests and confirm the specified values in order to verify compliance with safety standards. -
Page 5: Disassembly
HR-J692US HR-J692UC SECTION 2 DISASSEMBLY 2.1 Manually removing the cassette tape (3) Unload the pole base assembly by manually turning the gear of the loading motor until the pole base assembly is If you cannot remove the cassette tape which is loaded because hidden behind the cassette lid. -
Page 6: Removing The Major Parts
HR-J692US HR-J692UC 2.2 Removing the major parts <Note 3a> • Be careful not to damage the connector and wire etc. during 2.2.1 How to read the procedure table connection and disconnection. This table shows the steps for disassembly of the externally fur- •... - Page 7 HR-J692US HR-J692UC Drum Shield (S1a) (S3f) Drum assembly <Note 3d> (S3a) FFC WIRE remove from the A/C HEAD <Note 3b> BASE and put MECHA UNIT on CHASSIS. (WR3a) <Note 3a> (S2a) Top cover (S3b) <Note 3b> NOTE) HANG THE HOOK OF THE Mechanism TOP COVER IN HOLD OF CHASSIS.
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Page 8: Emergency Display Function
HR-J692US HR-J692UC 2.3 Emergency display function 2.3.2 Displaying the EMG information The EMG detail of information can be displayed by transmitting This unit saves details of the last two emergencies as the EMG the code "59" from the Jig RCU. - Page 9 : Sensor information (See sensor information details.) GG : Capstan motor speed above at the moment of EMG HH : Key code (JVC code) (5) Transmit the code “59” from the Jig RCU once again to re- : Supply reel winding diameter data, higher 8 bits.
- Page 10 J J J J KKKK L L L L MMMM ROM No. : Key code (JVC code) : Deck operation mode(See EMG detail information <1>.) : Mechanism operation mode (See EMG detail informa- tion <1>.) : Sensor information (See sensor information details.)
- Page 11 HR-J692US HR-J692UC 2.3.5 EMG content description Note: EMG contents “E08/E09” are for the model with Dynamic Drum (DD). CONTENT CAUSE If the mechanism mode does not change to the next mode within 4 sec- E01: Loading EMG 1. The mechanism is locked in the middle of the mode transition during a tape loading operation.
- Page 12 HR-J692US HR-J692UC 2.3.6 EMG detail information <1> *2 : Mechanism operation mode The status (electrical operation mode) of the VCR and the status [Table of MN*] (mechanism operation mode/sensor information) of the mecha- Display Mechanism operation mode nism in the latest EMG can be confirmed based on the figure in Command standby (No command to be executed) EMG detail information <1>...
- Page 13 HR-J692US HR-J692UC 3- : Mechanism sensor information *5 : Cassette tape type <1> [Common table of MN* and HD*] Display Cassette tape type <1> Cassette type not identified Mechanism sensor informatio n Large reel/small reel (T-0 to T-15/T-130 to T-210) not classified...
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Page 14: Service Position
HR-J692US HR-J692UC 2.4 Service position This unit has been designed so that the Mechanism and Main board assemblies can be removed together from the chassis as- sembly. Before diagnosing or servicing the circuit boards, take out the major parts from the chassis assembly. -
Page 15: Maintenance And Inspection
HR-J692US HR-J692UC 2.6 Maintenance and inspection 2.6.3 Suggested servicing schedule for main components The following table indicates the suggested period for such ser- 2.6.1 Cleaning vice measures as cleaning, lubrication and replacement. In prac- out cleaning of the tape transport system whenever the machine tice, the indicated periods will vary widely according to is serviced. -
Page 16: Adjustment
HR-J692US HR-J692UC SECTION 3 ADJUSTMENT 3.1 Before adjustment 3.1.4 Color (colour) bar signal,Color (colour) bar pattern 3.1.1 Precaution Color(colour) bar signal [NTSC] Color(colour) bar pattern [NTSC] • The adjustments of this unit include the mechanism com- White(100%) (75%) patibility and electrical adjustments. During the perfor-... -
Page 17: Mechanism Compatibility Adjustment
HR-J692US HR-J692UC 3.2 Mechanism compatibility adjustment 3.2.2 FM waveform linearity Notes: Signal (A1) • Alignment tape(SP, stairstep, NTSC) [MHP] (A2) • Alignment tape(EP,stairstep,NTSC) [MHP-L] • Although compatibility adjustment is very important, it Mode • PB is not necessary to perform this as part of the normal Equipment •... - Page 18 HR-J692US HR-J692UC 3.2.4 A/C head phase (X-value) Proper waveform variation Signal (A1) • Alignment tape(SP, stairstep, NTSC) [MHP] (A2) • Alignment tape(EP,stairstep,NTSC) [MHP-L] Mode • PB Equipment • Oscilloscope Measuring point (D) • TP106 (PB. FM) External trigger (E) • TP111 (D.FF)
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Page 19: Electrical Adjustment
HR-J692US HR-J692UC 3.3 Electrical adjustment Note: The following adjustment procedures are not only necessary after replacement of consumable mechanical parts or board assemblies, but are also provided as references to be referred to when servicing the electrical circuitry. In case of trouble with the electrical circuitry, always begin a... - Page 20 HR-J692US HR-J692UC JVC SERVICE & ENGINEERING COMPANY OF AMERICA DIVISION OF JVC AMERICAS CORP. www.jvcservice.com(US Only) JVC CANADA INC. Head office : 21 Finchdene Square Scarborough, Ontario M1X 1A7 (416)293-1311 (No.82952) Printed in Japan 0301WPC...
- Page 21 Frequency range Normal audio : 70 Hz to 10,000 Hz Hi-Fi audio : 20 Hz to 20,000 Hz Input/Output : RCA connectors (IN x 1, OUT x 1) HR-J692US, HR-J692UC V16D1 No.82952SCH COPYRIGHT © 2003 VICTOR COMPANY OF JAPAN, LTD. 2003/01...
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Page 22: Charts And Diagrams
CHARTS AND DIAGRAMS NOTES OF SCHEMATIC DIAGRAM 4) Indication on schematic diagram Voltage Indications for REC and PB mode on the sche- matic diagram are as shown below. Safety precautions The Components identified by the symbol critical for safety. For continued safety, replace safety critical components only with manufacturer's recom- REC mode mended parts. - Page 23 6. Signal path Symbols CIRCUIT BOARD NOTES The arrows indicate the signal path as follows. 1. Foil and Component sides 1) Foil side (B side) : Playback signal path Parts on the foil side seen from foil face (pattern face) are indicated.
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Page 24: Board Interconnections
BOARD INTERCONNECTIONS The Parts Number , value and rated voltage etc. in the Schematic Diagram are for references only. Note : When replacing the parts , refer to the Parts List. OPEN (VIDEO/N.AUDIO Page 2-5) (TUNER Page 2-13) (FMA/DEMOD Page 2-7) (FRONT Page 2-15) (SYSCON Page 2-9) (TERMINAL Page 2-17) -
Page 25: Main (Video/N.audio) Schematic Diagram
MAIN ( VIDEO/N. AUDIO ) SCHEMATIC DIAGRAM The Parts Number , value and rated voltage etc. in the Schematic Diagram are for references only. Note : When replacing the parts , refer to the Parts List. TO FMA/DEMOD NA_PB NA_REC RF_AUDI F.AUDIO[R] F.AUDIO[L]... -
Page 26: Main (Fma/Demod) Schematic Diagram
MAIN ( FMA/DEMOD ) SCHEMATIC DIAGRAM Note : The Parts Number , value and rated voltage etc. in the Schematic Diagram are for references only. When replacing the parts , refer to the Parts List. C2222 0.01 TO SW. REG SW5V SW12V C6504... -
Page 27: Main (Syscon) Schematic Diagram
MAIN ( SYSCON ) SCHEMATIC DIAGRAM The Parts Number , value and rated voltage etc. in the Schematic Diagram are for references only. Note : When replacing the parts , refer to the Parts List. VR4028 C3071 TO CAP_MDA SW POINT CP3002 SHORT CN3001... -
Page 28: Main (Sw.reg) Schematic Diagram
MAIN ( SW.REG ) SCHEMATIC DIAGRAM The Parts Number , value and rated voltage etc. in the Schematic Diagram are for references only. Note : When replacing the parts , refer to the Parts List. D5210 AU01Z-T2 TO SYSCON ERA18-02-T2 T5001 1SR153-400-T2 QQS0186-001... -
Page 29: Main (Tuner) Schematic Diagram
MAIN ( TUNER ) SCHEMATIC DIAGRAM The Parts Number , value and rated voltage etc. in the Schematic Diagram are for references only. Note : When replacing the parts , refer to the Parts List. TU6001 TO SW REG SW5V SW12V TO VIDEO/N.AUDIO TU6001... -
Page 30: Main (Front) Schematic Diagram
MAIN ( FRONT ) SCHEMATIC DIAGRAM Note : The Parts Number , value and rated voltage etc. in the Schematic Diagram are for references only. When replacing the parts , refer to the Parts List. TO SYSCON AL5V Q7001 DIG1 DIG2 Q7002 DIG3... -
Page 31: Main (Terminal) Schematic Diagram
MAIN (TERMINAL) SCHEMATIC DIAGRAM COMPONENT PARTS LOCATION GUIDE <MAIN> LPB10195-001B REF.NO. LOCATION REF.NO. LOCATION REF.NO. LOCATION REF.NO. LOCATION REF.NO. LOCATION The Parts Number , value and rated voltage etc. in the Schematic Diagram are for references only. Note : CAPACITOR C3025 B C 7C D5301... -
Page 32: Main Circuit Board
MAIN CIRCUIT BOARD CAUTION : FOR CONTINUED PROTECTION AGAINST FIRE HAZARD, REPLACE ONLY WITH SAME TYPE AND RATED FUSE(S). ATTENTION : REPLACER PAR DES FUSIBLE DE MEME TYPE. <03> MAIN DANGEROUS VOLTAGE LPB10195-001B Q2002 R2015 C2009 R2016 C2006 Q2003 C2011 F5001 Q2001 R2053... -
Page 33: Remote Controller Schematic Diagram
REMOTE CONTROLLER SCHEMATIC DIAGRAM WAVEFORMS < SYSCON > IC3001-49 IC3001-47 CN3001-1 CN3001-11 TP4001 IC3001-74 CAP_M_FG D. PG/FG CTL.P CTL_+ V_TO_OSD VIDEO_OSD_OUT (LP20878-001#, 020#) Key No. Key Name TV POWER STOP DISPLAY REC/PB 4.6 Vp-p REC/PB 4.5 Vp-p PB 2.7 Vp-p REC 4.0 Vp-p REC/PB 2.2 Vp-p REC/PB 2.2 Vp-p... -
Page 34: Voltage Charts
VOLTAGE CHARTS CPU PIN FUNCTION <MAIN> <SYSCON IC3001> MODE MODE MODE MODE MODE PLAY PLAY PLAY PLAY PLAY PIN NO. PIN NO. PIN NO. PIN NO. PIN NO. PIN NO. LABEL FUNCTION PIN NO. LABEL IN/OUT FUNCTION IN/OUT IC2201 Q2053 Q7007 VDD2 SP_FG... -
Page 35: System Control Block Diagram
SYSTEM CONTROL BLOCK DIAGRAM MAIN ( SYSCON ) DRUM MOTOR IC3001 ( SYSTEM CONTROL MICRO PROCESSOR ) VR4028 SW_PT_ADJ SWITCHING POINT ADJ. CN3001 X OUT X3001 CAP.M FG MAIN SYSTEM CAP.M FG CAP.M F/R CLOCK CAP.M F/R 3 in 1 MDA ( 14.32MHz ) CAP.M VCTL X IN... -
Page 36: Video Block Diagram
VIDEO BLOCK DIAGRAM MAIN ( VIDEO, TERMINAL ) SYSCON V.PULSE V TO OSD I2C DATA A/V I2C CLK A/V V FROM OSD TP106 PB.FM VIDEO & AUDIO SIGNAL PROCESSOR ) USED USED USED USED Q901 X-tal Det. VCO/OSC 2fsc TP111 2fsc D.FF LOCK CTL... -
Page 37: Audio Block Diagram
AUDIO BLOCK DIAGRAM MAIN ( VIDEO/AUDIO , FMA/DEMOD, TERMINAL ) J7101 FRONT U.DRUM EXT1 IN ( R ) AUDIO IN ( R ) AUDIO HEAD FMA CH1 J7101 FRONT FMA CH2 TP2253 EXT1 IN ( L ) AUDIO IN ( L ) A.PB.FM PB FM IN Q2201- Q2204... - Page 38 HR-J692US HR-J692UC JVC SERVICE & ENGINEERING COMPANY OF AMERICA DIVISION OF JVC AMERICAS CORP. www.jvcservice.com(US Only) JVC CANADA INC. Head office : 21 Finchdene Square Scarborough, Ontario M1X 1A7 (416)293-1311 (No.82952) Printed in Japan 0301WPC...
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Page 39: Parts List
PARTS LIST SAFETY PRECAUTION Parts identified by the symbol are critical for safety. Replace only with specified part numbers. 1. EXPLODED VIEW 1.1 PACKING AND ACCESSORY ASSEMBLY <M1> The instruction manual to be provided with this product will differ according to the destination. ADHESIVE TAPE 306A... -
Page 40: Final Assembly
BEWARE OF BOGUS PARTS Parts that do not meet specifications may cause trouble in regard to safety and per- formance. We recommend that genuine JVC parts be used. NOTE) HANG THE FOOK OF THE TOP COVER IN HOLD OF CHASSIS. -
Page 41: Mechanism Assembly
1.3 MECHANISM ASSEMBLY <M4> Not used A/C HEAD BOARD ASSY <12> LOADING MOTOR BOARD ASSY <55> Classifi- Symbol in Part No. drawing cation NOTE: The section marked in AA and BB indicate lubrication and greasing areas. Grease KYODO-SH-JB COSMO-HV56... -
Page 42: Packing And Accessory Assembly
2. PARTS LIST PACKING AND ACCESSORY ASSEMBLY <M1> Symbol No. Part No. Part Name Description Local Symbol No. Part No. Part Name Description Local QYTDST2606Z TAP SCREW 2.6mm x 6mm(x2) LP31089-060B PACKING CASE QAR0023-001 LOADING MOTOR LP31091-001C CUSHION ASSY QYTPSP3003Z SCREW 3mm x 3mm(x2) -
Page 43: Main Board Assembly <03
MAIN BOARD ASSEMBLY <03> Symbol No. Part No. Part Name Description Local Symbol No. Part No. Part Name Description Local Q5306 DTC114EUA-X DIGI TRANSISTOR Q5306 or UN5211-X DIGI TRANSISTOR LPA10195-01B1 MAIN BOARD ASSY Q5306 or RN1302-X DIGI TRANSISTOR Q5306 or PDTC114EU-X DIGI TRANSISTOR JCP8041-NVA... - Page 44 Symbol No. Part No. Part Name Description Local Symbol No. Part No. Part Name Description Local D6002 or HZ30-2LTD Z DIODE (M) C2207 NCB21HK-153X C CAPACITOR 0.015uF 50V K C2208 NCB21HK-153X C CAPACITOR 0.015uF 50V K PC3001 RPI-304J IC(PHOTO SENSOR) C2209 QEKJ1EM-106Z...
- Page 45 Symbol No. Part No. Part Name Description Local Symbol No. Part No. Part Name Description Local C7014 NCB21HK-103X C CAPACITOR 0.01uF 50V K R3220 NRSA02J-562X MG RESISTOR 5.6kΩ 1/10W J R3222 NRSA02J-471X MG RESISTOR 470Ω 1/10W J NRSA02J-682X MG RESISTOR 6.8kΩ...
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Page 46: A/C Head Board Assembly <12
Symbol No. Part No. Part Name Description Local CD1 QMPD340-165-K POWER CORD(US/CA) 1.65m BLACK QGF1201C2-09 CONNECTOR FFC/FPC (1-9) CN2001 QGF1201C2-06 CONNECTOR FFC/FPC (1-6) CN2002 QGB2532J1-02 CONNECTOR B-B (1-2) CN3001 QGB2032M4-12 CONNECTOR B-B (1-12) DI7001 LTG-Y2K12M-01J F5001 QMF51N2-1R25J1 FUSE 1.25A AC250V FC5001...