JVC HR-J486EN Service Manual

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SERVICE MANUAL

HR-J486EN/J486M/J683M

Regarding service information other than these sections, refer to the HR-J686M service manual (No. 82785).

Also, be sure to note important safety precautions provided in the service manual.

ESPECIFICAÇÕES

GERAL

Requisitos de Alimentação

: AC 110 V – 220 V` , 50 Hz/ 60 Hz

Consumo de energia

Sim

: HR-J683M 19 W

HR-J486M 17 W

Não

: 2.5 W

Temperatura

Em funcionamento

: 5°C to 40°C (41°F to 104°F)

Armazenagem

: –20°C to 60°C (–4°F to140°F)

Posição de Funcionamento : Apenas na horizental

Dimensões (C x A x P)

: 360 mm x 94 mm x 278 mm

Peso

: 3.3 kg

Formato

: VHS standard

Tempo máximo de gravação

: 210 min. com cassete de vídeo ST-210

: 630 min. com cassete de vídeo ST-210

VÍDEO/AUDIO

Sistema de sinal

: PAL-M- sinal de tipo cor e sinal monocromo

EIA, 525 linhas/60 campos, NTSC-sinal tipo

cor e sinal monocromo EIA, 525 linhas/60

campos (apenas para leitura)

Sistema de Gravação/

Leitura

: Cabeça DA-4 (Azimute duplo), sistema de

scan helicoidal

Racio de sinal-barulho

: 45 dB

Resolução horizental

: 230 linhas

Amplitude de frequência

Audio normal

: 70 Hz a 10,000 Hz

Audio Hi-Fi

(Apenas HR-J683M) : 20 Hz a 20,000 Hz

Entrada/Saída

: Ligações RCA (ENTRADA x 1, SAÍDA x 1)

VIDEOCASSETE

TV operation – Press and hold

TV button, then press POWER,

TV CH +/–, VOL +/–, TV/VCR

PROG.

POWER

CHECK

DISPLAY

TV/VCR

DAILY

WEEKLY

TIMER

CANCEL

ENTER

AUX

C.RESET

OSD

START

STOP

DATE

REW

PLAY

REC

STOP

PAUSE

POWER

TV CH +

VOL –

+ VOL

TV CH –

PUSH JOG

VIDEO (MONO)L—AUDIO—R

/OK

PUSH JOG

–

(The specifications shown pertain specifically to the model HR-J683M/J486M)

This service manual is printed on 100% recycled paper.

PLAY

REW

SP EP

VCR

REC

STOP/EJECT

PAUSE

SINTONIZADOR

Sistema de sintonizador

Alcançe dos canais

VHF

UHF

CATV

Saída RF

TEMPORIZADOR

Referência de relógio

Capacidade de Programa : 1 ano de temporizador

Reserva de tempo de

Memória

ACESSÓRIOS

Acessórios fornecidos

As especificações explicadas referem-se ao modo SP excepto especificado em

contrário.

O design E & O.E e especificações estão sujeitas a alteração sem aviso prévio.

M-PAL NTSC

NTSC/M-PAL

: Frequência–sintonizador sintetizado

: Canais 2–13

: Canais 14–69

: 113 Canais

: Canal 3 ou 4 (alterável; pré-ajustado

na fábrica para canal 3) 75 Ω

Não equilibrado

: Quartz

programável/8 programas

: Aprox. 6 meses.

Figura estimadas, baseada no

fornecimento de uma pilha nova; o

funcionamento concreto pode

variar.

: Cabo RF,

Unidade de controle remoto de

raios infravermelhos,

Pilha de lítio CR2025,

Pilha de tamanho "AA" x 2,

Adaptador*

* Não fornecido em certas áreas

No. 82809

September 2000

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Summary of Contents for JVC HR-J486EN

Page 1 SERVICE MANUAL VIDEOCASSETE HR-J486EN/J486M/J683M TV operation – Press and hold TV button, then press POWER, TV CH +/–, VOL +/–, TV/VCR PROG. PROG. POWER CHECK DISPLAY TV/VCR DAILY WEEKLY TIMER CANCEL ENTER C.RESET START STOP DATE PLAY PLAY STOP PAUSE...
Page 2 S.CENTER LIST BT-53002-1 — (**) Remote controller of the HR-J486EN is different from that of the HR-J686M but it is the same as that of the HR-J686EN. For the Schematic diagram, please refer to the HR-J686EN. CABINET AND CHASSIS ASSEMBLY<M2>...
Page 3 MAIN BOARD ASSEMBLY <03> REF. MODEL HR-J686M HR-J683M HR-J486M HR-J486EN ITEM MAIN BOARD ASSY LPA10088-14D1 LPA10088-37C1 LPA10088-15E1 LPA10088-19D1 D5301 ZENER DIODE * MTZJ15A MTZJ15C R3226 MG RESISTOR * NRSA02J-103X NRSA02J-472X R3227 MG RESISTOR * NRSA02J-103X NRSA02J-472X R5306 MG RESISTOR * NRSA02J-563X...
Page 5 VICTOR COMPANY OF JAPAN, LIMITED S40894 VIDEO DIVISION Printed in Japan...
Page 6 SECTION 4 CHARTS AND DIAGRAMS COMPONENT PARTS LOCATION GUIDE MAIN [HR-J683M] REF.NO. LOCATION REF.NO. LOCATION REF.NO. LOCATION REF.NO. LOCATION REF.NO. LOCATION REF.NO. LOCATION REF.NO. LOCATION REF.NO. LOCATION REF.NO. LOCATION C5103 CN7001 L6001 R3010 R5103 R7024 CAPACITOR C2001 C2002 C5104 CN7003 L6002 R3011 R5104...
Page 7 MAIN , A/C HEAD , MINI FRONT AND LOADING MOTOR CIRCUIT BOARDS [HR-J683M] DANGEROUS VOLTAGE 03 MAIN LPB10088-001F...
Page 8 12 A/C HEAD LPB10010-001A 28 MINI FRONT LPB10088-001F 55 LOADING MOTOR LPB10010-001A...
Page 9 MAIN , A/C HEAD , MINI FRONT AND LOADING MOTOR CIRCUIT BOARDS [HR-J486EN/J486M] DANGEROUS VOLTAGE 03 MAIN LPB10088-002E...
Page 10 12 A/C HEAD LPB10010-001A 28 MINI FRONT LPB10088-002E 55 LOADING MOTOR LPB10010-001A...
Page 11 COMPONENT PARTS LOCATION GUIDE MAIN [HR-J486EN/J486M] REF.NO. LOCATION REF.NO. LOCATION REF.NO. LOCATION REF.NO. LOCATION REF.NO. LOCATION REF.NO. LOCATION REF.NO. LOCATION REF.NO. LOCATION REF.NO. LOCATION C2004 B C 15M C5201 A D 16G R108 B C 10M R3035 R5313 S7010 CAPACITOR...
Page 12 REMOTE CONTROL SCHEMATIC DIAGRAM [HR-J486M/J683M]...
Page 13 VIDEO/AUDIO SCHEMATIC DIAGRAM [HR-J486EN/J486M] MAIN ( VIDEO/AUDIO ) TO BS CONNECTION TO TERMINAL TO TUNER TO SYSCON TO SW. REG TO U.DRUM OPEN TO SYSCON WF10 TO AC HEAD TO FULL ERASE HEAD TO SYSCON WF11 Note : For the waveforms in this schematic diagram , refer to page 4-12.
Page 14 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. HIFI MODEL HIFI MODEL TO SYSCON p10258001a rev2.1...
Page 15 SWITCHING REGULATOR SCHEMATIC DIAGRAM GROUND POINT FOR PRIMARY VOLTAGE GROUND POINT FOR SECONDARY VOLTAGE DANGEROUS VOLTAGE MARK ELEMENTS ARE NOT MOUNTED Marked elements may differ depending on the model. Be sure to the check the Parts List. 4-10...
Page 16 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. p20150001a rev3 100p/1k ( 33p/1k ) 4-11...
Page 17 WAVEFORMS — VIDEO/AUDIO — IC1-1 IC1-11 IC1-13 IC1-16 IC1-27 REC/PB 0.5 Vp-p REC 1.0 Vp-p PB 0.52 Vp-p REC/PB 0.5 Vp-p REC/PB 2.2 Vp-p 20 mV/20 µsec/DIV 20 mV/20 µsec/DIV 20 mV/20 µsec/DIV 50 mV/20 µsec/DIV 20 mV/5 msec/DIV IC1-85 IC1-30 WF7-1 IC1-53...
Page 18 SECTION 5 PARTS LIST SAFETY PRECAUTION Parts identified by the symbol are critical for safety. Replace only with specified part numbers. ELECTRICAL PARTS LIST REF No. PART No. PART NAME, DESCRIPTION REF No. PART No. PART NAME, DESCRIPTION - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -...
Page 19 REF No. PART No. PART NAME, DESCRIPTION REF No. PART No. PART NAME, DESCRIPTION - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -...
Page 20 REF No. PART No. PART NAME, DESCRIPTION REF No. PART No. PART NAME, DESCRIPTION - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -...
Page 21 REF No. PART No. PART NAME, DESCRIPTION REF No. PART No. PART NAME, DESCRIPTION - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -...
Page 22 REF No. PART No. PART NAME, DESCRIPTION REF No. PART No. PART NAME, DESCRIPTION - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -...
Page 23 SERVICE MANUAL VIDEO CASSETTE RECORDER HR-J686EN/J686M ULTI ARQUE CABLE /SAT TV/VCR AUDIO ENTER/ENTREE VPS/PDC DAILY/QTDN. WEEKLY/HEBDO 0000 N-PAL NTSC START DEBUT STOP DATE PROG EXPRESS PROG 30 SEC PLAY POWER MENU VIDEO (MONO)L—AUDIO—R SP EP SP/LP STOP/EJECT PAUSE PQ000000 ESPECIFICACIONES (The specifications shown pertain specifically to the model HR-J686EN) GENERALIDADES SINTONIZADOR...
Page 24 TABLE OF CONTENTS Section Title Page Section Title Page Important Safety Precautions 3. ELECTRICAL ADJUSTMENT 3.1 PRECAUTION ..............3-1 INSTRUCTIONS 3.1.1 Required test equipments ..........3-1 3.1.2 Required adjustment tools ..........3-1 1. DISASSEMBLY 3.1.3 Color (colour) bar signal,Color (colour) bar pattern ..3-1 1.1 DISASSEMBLY FLOW CHART ..........
Page 25 Important 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 26 • Safety Check after Servicing Examine the area surrounding the repaired location for damage or deterioration. Observe that screws, parts and wires have been returned to original positions, Afterwards, perform the following tests and confirm the specified values in order to verify compliance with safety standards.
Page 27 SECTION 1 DISASSEMBLY 1.3 DISASSEMBLY/ASSEMBLY METHOD 1.1 DISASSEMBLY FLOW CHART Step/ Fig. This flowchart lists the disassembling steps for the cabi- Part Name Point Note Loc No. net parts and P.C. boards in order to gain access to Top cover D1 2(S1a), (S1b) item(s) to be serviced.
Page 28 Procedures for Lowering the Cassette holder assembly As the mechanism of this unit is integrated with the Housing assembly, the holder must be lowered and the two screws un- screwed when removing the Mechanism assembly. (L2) Fig. 2 Fig. 1 CN7001 (L2) <Note 2c>...
Page 29 NOTE: When installing the DRUM assembly, secure the screws (S4a) in the order of a , b . (S4a) (S4b) <Note 4> (S4c) Foil side <Note 2a> Q3002 End sensor (L4) (L6a) <Note 4> Spacer <Note 6> <Note 4> (L4) Spacer <Note 4>...
Page 30 1.4 SERVICE POSITION In order to facilitate diagnosis and the repair of the Mecha- nism assembly, this unit is constructed so as to allow the Mechanism and Main board assemblies to be removed to- gether from the Bottom chassis assembly. 1.4.1 How to take out the Mechanism and Main board assemblies (1) Remove the Top cover, Bracket and Front panel assem-...
Page 31 MAIN BOARD ASSEMBLY <03> Fig. 1-4-3 1.5.1 How to set the "MECHANISM SERVICE MODE" 1.5 MECHANISM SERVICE MODE (1) Disconnect VCR from AC. This model has a unique function to enter the mechanism (2) Connect TPGND and TP7001(TEST) on the Main board into every operation mode without loading of any cassette assembly with a jump wire.
Page 32 1.6.1 Displaying the emergency information 1.6 EMERGENCY DISPLAY FUNCTION (1) Transmit the code “59” from the Jig RCU. This unit has a function for storing the history of the past The FDP shows the emergency content in the form of two emergencies (EMG) and displaying them on each FDP.
Page 33 1.6.3 Emergency content description Note: Emergency contents “E08/E09” are for the model with Dynamic Drum (DD). CONTENT CAUSE E01: Loading EMG When the mechanism mode cannot be changed to an- 1 The mechanism is locked in the middle of mode transition. other mode even when the loading motor has rotated 2 The mechanism is locked at the loading end due to the encoder position for more than 4 seconds in the loading direction, [E:01]...
Page 34 1.6.4 Emergency detail information 1 : Mechanism Operation Mode [Table of MN] The status (electrical operation mode) of the VCR and the sta- tus (mechanism operation mode/sensor information) of the Display Mechanism Operation Mode Command standby (Status without executing command) mechanism in the latest emergency can be confirmed based on POWER OFF by EMG occurrence the figure in EMG detail information 1 .
Page 35 1.6.5 Emergency detail information 2 : Mechanism Sensor Information 3 – [Common table of MN and HD] The type of the cassette tape and the cassette tape winding po- sition can be confirmed based on the figure in EMG detail infor- Mechanism Sensor Information Display S-VHS SW...
Page 36 1.7 SYSCON CIRCUIT 1.7.1 Syscon CPU pin function (IC3001) PIN NO. LABEL IN/OUT FUNCTION SP_FG DETECTION SIGNAL FOR SUPPLY REEL ROTATION/TAPE REMAIN TU_FG DETECTION SIGNAL FOR TAKE-UP REEL ROTATION/TAPE REMAIN PAUSE/COMPU_IN EV_MASK/BS_P.CTL REMOTE CONTROL DATA INPUT TU_CLK CLOCK FOR DATA TRANSFER TO THE TUNER UNIT TU_DATA TUNING DATA TU_CE...
Page 37 PIN NO. LABEL IN/OUT FUNCTION I2C_DATA_A/V IN/OUT I/O DATA FOR MEMORY IC I2C_CLK_A/V SERIAL DATA TRANSFER CLOCK FOR MEMORY IC LMC3 LOADING MOTOR DRIVE(3) MECHANISM MODE DETECT(A) MECHANISM MODE DETECT(B) MECHANISM MODE DETECT(C) D.FG_IN DRUM FG PULSE INPUT D.PG_IN DRUM PICKUP PULSE INPUT(SWITCHING PULSE) C.FG_AMP_OUT SET-UP OUTPUT FOR CAPSTAN FG AMPLIFICATION FACTOR C.FG_IN...
Page 38 SECTION 2 MECHANISM ADJUSTMENT 2.1 BEFORE STARTING REPAIR AND ADJUSTMENT 2.1.1 Precautions (1) Unplug the power cable of the main unit before using your Loading motor soldering iron. (2) Take care not to cause any damage to the conductor wires when plugging and unplugging the connectors. (3) Do not randomly handle the parts without identifying where the trouble is.
Page 39 2. In case of mechanical failure 2.1.4 Jigs and Tools Required for Adjustment If you cannot remove the cassette tape which is loaded be- Roller driver A/C head positioning tool Torque gauge cause of any mechanical failure, manually remove it by tak- PTU94002 PTU94010 PUJ48075-2...
Page 40 2.1.5 Maintenance and Inspection 1. Location of major mechanical parts In this chapter, the two mechanism speeds are described by comparing the speeds of the standard type and the high-speed FF/REW type. It is possible to distinguish between these two types of mechanism by the diameters of their capstan pulleys. The capstan pulley diameter for the standard type is approx.
Page 41 4. Suggested servicing schedule for main components The following table indicates the suggested period for such Guide rail Roller cam assembly service measures as cleaning,lubrication and replacement. In practice, the indicated periods will vary widely according to environmental and usage conditions.However, the indi- cated components should be inspected when a set is brought for service and the maintenance work performed if neces- sary.
Page 42 Symbols and numbers R4 R1 T9 T12 T11 B15 B12 B14 B13 B17 B21 B7 B8 B5 B4 B11 T14 T15 T13 T22 T24 T18 B19 Removal parts (Reference items) Replacement parts 2.2.3 Guide rail 2.2.3 Roller cam assembly 2.2.3 Cassette housing bracket 2.2.3 Opener guide 2.2.3 Door opener 2.2.3 Relay gear...
Page 43 2.2 REPLACEMENT OF MAJOR PARTS 2.2.3 Cassette Holder Assembly 1. How to remove 2.2.1 Before Starting Disassembling (Phase matching (1) Remove the guide rail and roller cam assembly. (See between mechanical parts) Fig.2-2-3a.) The mechanism of this unit is closely linked with the rotary (3 lugs on the guide rail and one lug on the roller cam encoder and system controller circuits.
Page 44 (5) While holding the left side of the cassette holder, lift the 2. How to install (Phase matching) cassette holder assembly so that the three legs on the (1) Insert the section A of the drive arm into the section B left side are all released.
Page 45 2.2.6 Audio Control Head Notches Guide hole Notch 1. How to remove Relay gear (1) Remove the two screws (A) and remove the audio con- trol head together with the head base. (2) When replacing only the audio control head, remove the three screws (B) while controlling the compression spring.
Page 46 2. How to install (Centering the mounting position) Loading motor board assembly When the capstan motor has once been removed and then reinstalled out of the initial correct position in the rotational Loading motor direction, the capstan motor current may be unstable during Lugs Motor guide operation in high or low temperatures.
Page 47 2.2.10 Rotary Encoder 2.2.12 Change Lever Assembly, Direct Gear, Clutch Gear and Coupling Gear 1. How to remove (1) Remove the screw (A) and remove the rotary encoder 1. How to remove by pulling it up. (See Fig. 2-2-10a.) (1) Release the two lugs of the rotary encoder guide in the arrow-indicated direction and remove the change lever assembly.
Page 48 2.2.13 Link Lever 2.2.14 Cassette Gear, Control Cam and Worm Gear 1. How to remove 1. How to remove (1) Remove the two slit washers. (1) Remove the control cam by lifting it. (2) Remove the link lever by lifting it from the shaft retained (2) Open the two lugs of the cassette gear outward and pull by the slit washers.
Page 49 (3) Install the control plate so that the section A of the load- (3) Turn the loading arm gear (take-up side) clockwise so ing arm gear shaft fits into the hole (A) of the control plate, that the notch of the loading arm gear (take-up side) is the section B of the control plate guide into the hole (B), in alignment with the projection of the loading arm gear and the control plate comes under the section C of the...
Page 50 2.2.17 Take-up Lever, Take-up Head and Control Plate Guide (1) Remove the spring of the take-up lever from the main deck. Spring (2) Remove the lug (A) of the take-up lever from the main Sub brake assembly deck and pull out the take-up lever and the take-up head Lug(A) (take-up side) together.
Page 51 2.2.21 Tension Brake Assembly, Reel Disk (supply side) 2.2.23 Stator Assembly and Tension Arm Assembly (1) Remove the flat cable. 1. How to remove (2) Remove the two screws (A). (1) Remove the three lugs of the tension brake assembly (3) Remove the stator assembly by lifting in the arrow-indi- from the main deck and pull them off.
Page 52 2.2.25 Upper Drum Assembly 1. How to remove (1) Remove the stator assembly and rotor assembly. (2) Loosen the screw of the collar assembly using a 1.5 mm hexagonal wrench and remove the collar assembly. Also remove the brush, spring and cap at one time. Lower drum assembly (3) Remove the upper drum assembly and remove the washer using tweezers.
Page 53 2.3 COMPATIBILITY ADJUSTMENT (5) Reduce the V.PB FM waveform while pressing the chan- nel buttons (+, –) during playback. If a drop in level is Notes: found on the left side, turn the guide roller of the pole • Although compatibility adjustment is very important, base assembly (supply side) with the roller driver to make it is not necessary to perform this as part of the nor- the V.PB FM waveform linear.
Page 54 (3) Press the channel buttons (+, –) simultaneously to enter the manual tracking mode. This also brings tracking to the center (centre). (4) Adjust the AUDIO OUT waveform and Control pulse waveform by turning the screws (1), (2) and (3) little by little until both waveforms reach maximum.
Page 55 [Perform adjustments steps (7) to (10) only for 2 Head (1) Play back the alignment tape (A). models equipped with LP mode.] (2) Apply the external trigger signal to D.FF (E), to observe the V.PB FM waveform at the measuring point (D). (7) Then play back the alignment tape (A2).
Page 56 Mechanism Timing Chart EJECT CASS- Mechanism mode CASS-INS FF/REW STOP SLOW/STILL PLAY Control plate mark HIGH C CH HIGH Rotary encoder B CH HIGH A CH Control cam angle 264. 318. 412. Rotary encoder 114. 150. 167. 178. 207. 218. 240.
Page 57 SECTION 3 ELECTRICAL ADJUSTMENT 3.1 PRECAUTION Jig RCU The following adjustment procedures are not only necessary [Data transmitting method] Depress the “ ” ( 3 ) button after replacement of consumable mechanical parts or board after the data code is set. assemblies, but are also provided as references to be re- ferred to when servicing the electrical circuitry.
Page 58 3.2.2 Slow tracking preset Signal (A1) • Ext. input - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - [HR-J686EN] (A2) •...
Page 59 DEMODULATOR CIRCUIT (6) Release the EVR mode of the VCR by transmitting the code (F1) from the Jig RCU again. (When the EVR mode [Perform the DEMOD CIRCUIT adjustments only for the is released, the adjusted data is memorized.) models equipped with IC6501 on the Main board.] (7) Disconnect the short wire between the short point (D2) Note: and the GND (Ground).
Page 60 3.4.5 Separation - 2 SYSCON CIRCUIT Note: Signal • RF signal • When perform this adjustment, remove the Mechanism (Audio: L-ch 5 kHz 14% modulated) assembly. Mode • Tuner • EE 3.5.1 Timer clock Equipment • Audio level meter Measuring point •...
Page 61 SECTION 4 CHARTS AND DIAGRAMS 4) Indication on schematic diagram NOTES OF 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 62 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.
Page 63 BOARD INTERCONNECTIONS ( Page 4-15 ) OPEN AC110-220V 50/60Hz REAR OUT REAR1 IN FRONT AUDIO OPEN FRONT VIDEO BS-IF BIT IN/OUT DET IN/OUT VIDEO AUDIO(R) AUDIO(L) VIDEO AUDIO(R) AUDIO(L) ANT OUT ANT IN J6202 J6201 J7101 TUNER ( Page 4-11 ) CN6203 BSP.CTL BSP.CTL...
Page 64 VIDEO/AUDIO SCHEMATIC DIAGRAM When ordering parts , be sure to order according to NOTE : the Part Number indicated in the Parts List. MAIN ( VIDEO/AUDIO ) TO BS CONNECTION TO TERMINAL 3.3k 3.3k OPEN 2.2k 2.2k OPEN OPEN WF10 OPEN OPEN 1SS133...
Page 65 SYSTEM CONTROL SCHEMATIC DIAGRAM When ordering parts , be sure to order according to NOTE : the Part Number indicated in the Parts List. TO CAP MDA TO SW.REG TO DRUM MOTOR CON1 ICP-N25 AL5V 0.01 TO DISPLAY 2SC4081 2SC4081 /QRS /QRS RD33ES/B2...
Page 66 SWITCHING REGULATOR SCHEMATIC DIAGRAM NOTE : When ordering parts , be sure to order according to the Part Number indicated in the Parts List. TO DISPLAY AC110-220V 2A/250 50/60Hz OPEN TO SYSCON OPEN OPEN TO VIDEO/AUDIO 220k OPEN K5102 82/400 0.068 OPEN SHORT...
Page 67 TUNER/DEMOD SCHEMATIC DIAGRAM When ordering parts , be sure to order according to NOTE : the Part Number indicated in the Parts List. MAIN [TUNER/DEMOD] SYSCON SW.REG OPEN 2SC1740S/QRS OPEN DTC143TUA OPEN 3.9k 1.9k OPEN 1.2k VIDEO/AUDIO MTZJ10B OPEN DTC143TUA OPEN OPEN 3.9k...
Page 68 DISPLAY , MINI FRONT AND SHUTTLE SCHEMATIC DIAGRAMS When ordering parts , be sure to order according to NOTE : the Part Number indicated in the Parts List. D7012 SLR-34DU3F MAIN ( DISPLAY ) D7013 SLR-342MG3F OPEN OPEN OPEN OPEN OPEN OPEN OPEN...
Page 69 BS CONNECTION AND LITHIUM BATTERY SCHEMATIC DIAGRAMS TERMINAL SCHEMATIC DIAGRAM When ordering parts , be sure to order according to NOTE : the Part Number indicated in the Parts List. When ordering parts , be sure to order according to NOTE : the Part Number indicated in the Parts List.
Page 70 MAIN , A/C HEAD , MINIFRONT , SHUTTLE AND LOADING MOTOR CIRCUIT BOARDS 03 MAIN 12 A/C HEAD DANGEROUS VOLTAGE LPB10010-001A LPB10088-001E 55 LOADING MOTOR LPB10010-001A 28 MINI FRONT [HR-J686M] LPB10088-001E 85 SHUTTLE [HR-J686EN] LPB20006-001A 4-17 4-18...
Page 71 COMPONENT PARTS LOCATION GUIDE MAIN REF.NO. LOCATION REF.NO. LOCATION REF.NO. LOCATION REF.NO. LOCATION REF.NO. LOCATION REF.NO. LOCATION REF.NO. LOCATION REF.NO. LOCATION C2012 C5307 A D 22G D5203 Q2051 R2010 R3211 R6602 CAPACITOR C5310 D5204 Q2052 R2011 B C 16M R3212 R6603 C2051 Q2053...
Page 72 4.10 FDP GRID ASSIGNMENT AND ANODE CONNECTION 4.11 FDP GRID ASSIGNMENT AND ANODE CONNECTION GRID ASSIGNMENT [A] (FDP with audio level indicator) VN LD REVIEW VPS/PDC (LP20303#*#) (LP20878#*#) –15dB NORM col2 col1 PROG(CH)#+# –15dB (6G, 5G) (4G) [B] (FDP without audio level indicator) #-#/#-##-# SKIP OPERATE...
Page 73 4.12 VOLTAGE CHARTS <VIDEO/AUDIO> MODE MODE MODE MODE MODE MODE MODE MODE MODE MODE PLAY PLAY PLAY PLAY PLAY PLAY PLAY PLAY PLAY PLAY PIN NO. PIN NO. PIN NO. PIN NO. PIN NO. PIN NO. PIN NO. PIN NO. PIN NO.
Page 74 4.13 SYSTEM CONTROL BLOCK DIAGRAM MAIN ( SYSCON ) IC3001 ( SYSTEM CONTROL MICRO PROCESSOR ) CN3001 CAP MDA XC OUT CAP REV ( L ) CAP REV ( L ) X3002 TIMER CLOCK ( 32KHz ) XC IN CAP CTL V CAP CTL V C3018 CAP FG...
Page 75 4.14 VIDEO BLOCK DIAGRAM MAIN ( VIDEO , TERMINAL ) HR-J686M only SYSCON R-Y REV V.PULSE V TO OSD V FROM OSD AGC CTL/SLOW PULSE I2C DATA A/V I2C CLK A/V HR-J686M only Q901 TP106 PB.FM USED fsc IN TUNER/DEMOD RF VIDEO X-tal CR Det.
Page 76 4.15 AUDIO BLOCK DIAGRAM MAIN (VIDEO/AUDIO , TERMINAL) TUNER/DEMOD ( VIDEO & AUDIO SIGNAL PROCESSOR ) DEMOD (R) DEMOD (L) RF AUDIO J7101 A.MUTE(H) A. MUTE(H) FRONT IN INPUT A.FF A. FF AUDIO(R) SELECT (R-CH) DATA I2C DATA LOGIC I2C CLK J7101 DEC(R) FRONT IN...
Page 77 SECTION 5 PARTS LIST SAFETY PRECAUTION Parts identified by the symbol are critical for safety. Replace only with specified part numbers. < > PACKING AND ACCESSORY ASSEMBLY The instruction manual to be provided with this product will differ according to the destination. (HR-J686M) (HR-J686EN) ADHESIVE...
Page 78 < > CABINET AND CHASSIS ASSEMBLY BEWARE OF BOGUS PARTS Parts that do not meet specifications may cause trouble in regard to safety and performance. We recommend that genuine JVC parts be used. 505F 518B 505D 505E LT BATTERY 505B BOARD ASSY <93>...
Page 79 REF No. PART No. PART NAME, DESCRIPTION REF No. PART No. PART NAME, DESCRIPTION - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -...
Page 80 < > MECHANISM ASSEMBLY A/C HEAD BOARD ASSY <12> LOADING MOTOR BOARD ASSY <55> Classifi- Symbol in Part No. cation drawing Grease KYODO-SH-P NOTE:The section marked in AA and BB indicate lubrication and greasing areas. COSMO-HV56...
Page 81 REF No. PART No. PART NAME, DESCRIPTION REF No. PART No. PART NAME, DESCRIPTION - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -...
Page 82 ELECTRICAL PARTS LIST REF No. PART No. PART NAME, DESCRIPTION REF No. PART No. PART NAME, DESCRIPTION - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -...
Page 83 REF No. PART No. PART NAME, DESCRIPTION REF No. PART No. PART NAME, DESCRIPTION - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -...
Page 84 REF No. PART No. PART NAME, DESCRIPTION REF No. PART No. PART NAME, DESCRIPTION - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -...
Page 85 REF No. PART No. PART NAME, DESCRIPTION REF No. PART No. PART NAME, DESCRIPTION - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -...
Page 86 REF No. PART No. PART NAME, DESCRIPTION REF No. PART No. PART NAME, DESCRIPTION - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -...
Page 87 REF No. PART No. PART NAME, DESCRIPTION REF No. PART No. PART NAME, DESCRIPTION - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -...
Page 88 REF No. PART No. PART NAME, DESCRIPTION REF No. PART No. PART NAME, DESCRIPTION - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -...

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