JVC HR-J291EA, HR-J291MS, HR-J297MS, HR-J695EA Service Manual

SERVICE MANUAL

VIDEO CASSETTE RECORDER

HR-J291EA, HR-J291MS,

HR-J297MS, HR-J695EA

Regarding service information other than these sections, refer to the service manual No. 82915 (HR-J290EU). Also, be sure to note important safety precautions provided in the service manual.

SPECIFICATIONS (The specifications shown pertain specifically to the model HR-J291EA, HR-J695EA.)

GENERAL

AUDIO

Power	:	110 V – 240 Vd, 50 Hz/60 Hz
Power consumption
Power on	: Approx. 12 W
Standby mode	:	3.0 W
Video Head system
HR-J695EA	:	DA4 (Double Azimuth) head helical
		scan system
HR-J291EA	:	Rotary two-head helical scan system
Tape speed
(SP)	:	23.39 mm/sec
(LP)	:	11.69 mm/sec
Tape format	:	Tape width 1/2"
		(12.7 mm high density VHS tape)
Maximum recording time
(SP)	:	240 min. with E-240 video cassette
(LP)	:	480 min. with E-240 video cassette
Rewind time	:	Approx. 180 (±30) sec. with E-180
		cassette
Dimensions (W x H x D) :		360 mm x 94.5 mm x 270 mm
Weight	:	4.0 kg
Operating temperature	:	5°C to 35°C
Operating humidity	:	Less than 80 %
Timer	:	24 hours display type

VIDEO

Signal system	: PAL-type colour signal and CCIR
	monochrome signal, 625 lines
	50 fields
Recording Format	: PAL/MESECAM/NTSC 3.58/
	NTSC 4.43
RF reception
HR-J695EA	: PAL B/G, SECAM D/K
HR-J291EA	: PAL B/G
RF OUT	: PAL B/G
RF modulator	: UHF channels 22 – 68 (Adjustable)
Input level	: VIDEO IN (RCA type)
	1.0 Vp-p, 75 Ω, unbalanced
Output level	: VIDEO OUT (RCA type)
	1.0 Vp-p, 75 Ω, unbalanced
Signal-to-noise ratio	: More than 43 dBm

Input level	: AUDIO IN (RCA type)
	–6.0 dBm, more than 47 kΩ
Output level	: AUDIO OUT (RCA type)
	–6.0 dBm, less than 1 kΩ
Audio track
HR-J695EA	: Mono track and Hi-Fi track
HR-J291EA	: Mono track
Audio frequency response
Normal audio	: 100 Hz to 10,000 Hz
	(–6/+3 dBm)
Hi-Fi audio*	: 20 Hz to 20,000 Hz
	(–3/+3 dBm)
* HR-J695EA only
Audio signal to noise ratio
Normal audio	: More than 43 dB (JIS A filter)
Hi-Fi audio*	: More than 70 dB (JIS A filter)
* HR-J695EA only
Audio dynamic range [HR-J695EA only]
Hi-Fi audio	: More than 85 dB (JIS A filter)

ACCESSORIES

Provided accessories	: RF cable,
	Infrared remote control unit,
	“R3” battery x 2

Specifications shown are for SP mode unless specified otherwise. E. & O.E. Design and specifications subject to change without notice.

HR-J291EA,HR-J291MS,HR-J297MS,HR-J695EA V15A1/A11/D1

This service manual is printed on 100% recycled paper.

COPYRIGHT © 2002 VICTOR COMPANY OF JAPAN, LTD

No.82940

August 2002

TABLE OF CONTENTS

SECTION 1

SUMMARY

KEY TO ABBREVIATIONS . . . . . . . . . . . . . . . . 1-1 IMPORTANT SAFETY PRECAUTIONS . . . . . . . . 1-2 PROPOSAL FOR APPLYING SHORT PROTECTION . . . . . . . . . . . . . . . . . . . . . . . . . . .1-4 SERVICE NOTICE ON REPLACING EEPROM . .1-5 SERVICE INFORMATION FOR EEPROM

IC SETTING . . . . . . . . . . . . . . . . . . . . . . . . . . . .1-6 SPECIFICATIONS . . . . . . . . . . . . . . . . . . . . . . . 1-7

SECTION 2

CABINET & MAIN CHASSIS

SERVICE METHOD . . . . . . . . . . . . . . . . . . . . . 2-1 EXPLODED VIEWS . . . . . . . . . . . . . . . . . . . . . . 2-2

1.	Cabinet & Main Frame Section . . . . . . . . . . . . .	2-2
2.	Packing & Accessory Section . . . . . . . . . . . . . .	2-3

SECTION 3

ELECTRICAL

ELECTRICAL ADJUSTMENT POINTS ARRANGEMENT . . . . . . . . . . . . . . . . . . . . . . . .3-1 ELECTRICAL ADJUSTMENT PROCEDURES . . 3-2

1. Servo Circuit . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-2

ELECTRICAL TROUBLESHOOTING GUIDE . . . 3-4

1. Power Circuit(SMPS) . . . . . . . . . . . . . . . . . . . . . 3-4

2. Servo Circuit . . . . . . . . . . . . . . . . . . . . . . . . . . .3-7

3. System & Front Panel Circuit . . . . . . . . . . . . . . .3-10

4. Y/C Circuit . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3-13

5. Tuner/IF Circuit . . . . . . . . . . . . . . . . . . . . . . . . .3-17

6. Hi-Fi Circuit . . . . . . . . . . . . . . . . . . . . . . . . . . . .3-20

BLOCK DIAGRAMS . . . . . . . . . . . . . . . . . . . . .3-22

1. Power Block Diagram . . . . . . . . . . . . . . . . . . . .3-22 2. Tuner/IF, NICAM & A2 Block Diagram . . . . . . . .3-24 3. Y/C Block Diagram . . . . . . . . . . . . . . . . . . . . . .3-26 4. Hi-Fi Block Diagram . . . . . . . . . . . . . . . . . . . . .3-27 5. System Block Diagram . . . . . . . . . . . . . . . . . . .3-28

CIRCUIT DIAGRAMS . . . . . . . . . . . . . . . . . . . .3-30

1. Power Circuit Diagram . . . . . . . . . . . . . . . . . . . .3-30

2. Tuner, NICAM, A2 Circuit Diagram . . . . . . . . . . .3-32

3. A/V Circuit Diagram . . . . . . . . . . . . . . . . . . . . . .3-34

4. System Circuit Diagram . . . . . . . . . . . . . . . . . . .3-36

5. Hi-Fi Circuit Diagram . . . . . . . . . . . . . . . . . . . . .3-38

• WAVEFORM . . . . . . . . . . . . . . . . . . . . . . . . . . . .3-40

• CIRCUIT VOLTAGE CHART . . . . . . . . . . . . . . . .3-42

PRINTED CIRCUIT BOARD DIAGRAMS . . . . .3-46

1. MAIN P.C.Board . . . . . . . . . . . . . . . . . . . . . . . .3-46

SECTION 4

MECHANISM

Refer to the service manual No.82915 (HR-J290EU).

SECTION 5

REPLACEMENT PARTS LIST

5.1 EXPLODED VIEW. . . . . . . . . . . . . . . . . . . . . . . .5-1 5.2 REPLACEMENT PARTS LIST. . . . . . . . . . . . . . .5-4

SECTION1 SUMMARY

KEY TO ABBREVIATIONS

A	AC	:Alternating Current
	ACC	:Automatic Color Control
	ACSS	:Automatic Channel Setting System
	ADJ	:Adjust
	A/E	:Audio Erase
	AFC	:Automatic Frequency Control
	AFT	:Automatic Fine Tuning
	AGC	:Automatic Gain Control
	A.H.SW	:Audio Head Switch
	ALC	:Automatic Level Control
	AM	:Amplitude Modulation
	AMP	:Amplifier
	ANT	:Antenna
	APC	:Automatic Phase Control
	ASS’Y	:Assembly
	AUX	:Auxiliary
B	B	:Base
	BGP	:Burst Gate Pulse
	BPF	:Bandpass Filter
	BS	:Brodcasting Satellite
	BW or B/W	:Black and White
C	C	:Capacitor, Chroma, Collector
	CAN	:Cancel
	CAP	:Capstan
	CAP.BRK	:Capstan Brake
	CAP.RVS	:Capstan Reverse
	CATV	:Cable Television
	CBA	:Circuit Board Assembly
	CCD	:Charge Coupled Device
	C.CTL	:Chro Control, Capstan Control
	CFG	:Capstan Frequency Generator
	CHROMA	:Chrominance
	CNR	:Chroma Noise Redution
	COMB	:Combination
		Comb Filter
	COMP	:Comparator
		Composite
		Compensation
	CONV	:Converter
	C.ROT SW	:Color Rotary Switch
	CS	:Chip Selcet
	C.SYNC	:Composite Synchronization
	CTL DIV	:Control Divide
	CUR	:Current
	CYL	:Cylinder
D	D	:Drum, Digital, Diode, Drain
	D.ADJ	:Drum Adjust
	DC	:Direct Current
	D.CTL	:Drum Control
	DEMOD	:Demodulator
	DET	:Detector
	DEV	:Deviation
	DHP	:Double High Pass
	DIGITRON	:Digital Display Tube
	DL	:Delay line
	DOC	:Drop Out Compensator
	DUB	:Dubbing
	D.V SYNC	:Dummy Vertical Synchronization
E	E	:Emitter
	EE	:Electric to Eletric
	EMPH	:Emphasis
	ENA	:Enable
	ENV	:Envelope
	EP	:Extended Play
	EQ	:Equalizer
	EXP	:Expander
F	F	:Fuse
	FB	:Feed Back
	FBC	:Feed Back Clamp
	FE	:Full Erase
	FG	:Frequency Generator
	FL	:Filter
	FM	:Frequency Modulation
	F/R	:Front/Rear
	FS	:Frequency Synthesizer
	FSC	:Subcarrier Frequency
	F/V	:Frequency Voltage
G	GEN	:Generator
H	H	:High, Horizontal
I	IC	:Integrated Circuit
	IF	:Intermediate Frequency
	INS	:Insert
L	L	:Low, Left, Coil
	LD	:LED
	LD VTG CTL	:Loading Voltage Control
	LECHA	:Letter Character
	L.M	:Level Meter
	LP	:Long Play

	LPF	:Low Pass Filter
M	MAX	:Maximum
	MD	:Modulator
	MECHA.CTL	:Mechanism Control
	MIC	:Microphone
	MIN	:Minimum
	MIX	:Mixer, Mixing
	M.M.	:Monostable, Multivibrator
	MMV	:Mono Multi Vibrator
	MOD	:Modulation, Modulator
	MODEM	:Modulator-Demodulator
	MPX	:Multiplex
N	NR	:Noise Reduction
O	OSC	:Oscillator
	OSD	:On Screen Display
P	PB	:Playback
	PCB	:Printed Circuit Board
	P.CTL	:Power Control
	PRE-AMP	:Preamplifier
	P.F	:Power Failure
	PG	:Pulse Generator
	PLL	:Phase Locked Loop
	PREM.DET	:Premire Detect
	P.P	:Peak-to-Peak
	PS	:Phase Shift
	PWM	:Pulse Width Modulation
	PWR CTL	:Power Control
Q	Q	:Transistor
	QH	:Quasi Horizontal
	QSR	:Quick Setting Record
	QTR	:Quick Timer Record
	QV	:Quasi Vertical
R	R	:Resistor, Right
	RE(or RC)	:Remocon, Receiver
	REC	:Recording
	REC S ‘H’	:Record Start ‘Hight’
	REF	:Reference
	REG	:Regulated, Regulator
	REMOCON	:Remote Control(unit)
	RF	:Radio Frequency
	R/P	:Record/Playback
	RTC	:Reel Time Counter
S	S	:Serial
	S.ACCEL	:Slow Accel
	SAOP	:Second Audio Program
	SC	:Scart, Simulcast
	S.DET	:Secam Detect
	SH	:Shift
	SHARP	:Sharpness
	SIF	:Sound Intermediate Frequency
	SLD	:Side Locking
	S/N	:Signal to Noise Ratio
	SP	:Standard Play
	ST	:Stereo
	SUB	:Subtract, Subcarrier
	SW or S/W	:Switch
	SYNC	:Synchronization
	SYSCON	:System Control
T	T	:Coil
	TP	:Test Point
	TR	:Transistor
	TRK	:Tracking
	TRANS	:Transformer
	TU	:Tuner, Take-up
U	UHF	:Ultra High Frequency
	UNREG	:Unregulated
V	V	:Volt, Vertical
	VA	:Always Voltage
	VCO	:Voltage Controlled Oscillator
	VGC	:Voltage Gain Control
	VHF	:Very High Frequency
	V.H.SW	:Video Head Switch
	VISS	:VHS Index Search
	VPS	:Video Program System
	VR	:Variable Resistor or Volume
	V-SYNC	:Vertical Synchronization
	VTG	:Voltage
	VV	:Voltage to Voltage
	VXO	:Voltage X-tal Oscillator
W	W	:Watt
	WHT	:White
	W/O	:With out
X	X-TAL	:Crystal
Y	Y/C	:Luminance/Chrominance
	YNR	:Luminance Noise Reduction
Z	ZD	:Zener Diode

1-1

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.

v Precautions during Servicing

1.Locations requiring special caution are denoted by labels and inscriptions on the cabinet, chassis and certain parts of the product. When performing service, be sure to read and comply with these and other cautionary notices appearing in the operation and service manuals.

2.Parts identified by the symbol and shaded () parts are critical for safety.

Replace only with specified part numbers.

Note: Parts in this category also include those specified to comply with X-ray emission standards for products using cathode ray tubes and those specified for compliance with various regulations regarding spurious radiation emission.

3.Fuse replacement caution notice.

Caution for continued protection against fire hazard. Replace only with same type and rated fuse(s) as specified.

4.Use specified internal wiring. Note especially:

1)Wires covered with PVC tubing

2)Double insulated wires

3)High voltage leads

5.Use specified insulating materials for hazardous live parts.

Note especially:

1)	Insulation Tape	3)	Spacers	5) Barrier
2)	PVC tubing	4)	Insulation sheets for transistors

6.When replacing AC primary side components (transformers, power cords, noise blocking capacitors, etc.) wrap ends of wires securely about the terminals before soldering.

Fig.1

7.Observe that wires do not contact heat producing parts (heatsinks, oxide metal film resistors, fusible resistors, etc.)

8.Check that replaced wires do not contact sharp edged or pointed parts.

9.When a power cord has been replaced, check that 10-15 kg of force in any direction will not loosen it.

Power cord

Fig.2

10.Also check areas surrounding repaired locations.

11.Products using cathode ray tubes (CRTs)

In regard to such products, the cathode ray tubes themselves, the high voltage circuits, and related circuits are specified for compliance with recognized codes pertaining to X-ray emission. Consequently, when servicing these products, replace the cathode ray tubes and other parts with only the specified parts. Under no circumstances attempt to modify these circuits.

Unauthorized modification can increase the high voltage value and cause X-ray emission from the cathode ray tube.

12.Crimp type wire connector

In such cases as when replacing the power transformer in sets where the connections between the power cord and power transformer primary lead wires are performed using crimp type connectors, if replacing the connectors is unavoidable, in order to prevent safety hazards, perform carefully and precisely according to the following steps.

1)Connector part number : E03830-001

2)Required tool : Connector crimping tool of the proper type which will not damage insulated parts.

3)Replacement procedure

(1)Remove the old connector by cutting the wires at a point close to the connector.

Important : Do not reuse a connector (discard it).

cut close to connector

Fig.3

(2)Strip about 15 mm of the insulation from the ends of the wires. If the wires are stranded, twist the strands to avoid frayed conductors.

15 mm

Fig.4

(3)Align the lengths of the wires to be connected. Insert the wires fully into the connector.

Metal sleeve

Connector

Fig.5

(4)As shown in Fig.6, use the crimping tool to crimp the metal sleeve at the center position. Be sure to crimp fully to the complete closure of the tool.

25	Crimping tool
1.
2.
0
5.
5

Fig.6

(5) Check the four points noted in Fig.7.

Not easily pulled free	Crimped at approx. center
		of metal sleeve
		Conductors extended
Wire insulation recessed
more than 4 mm
Fig.7

1

S40888-01

v 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.

1.Insulation resistance test

Confirm the specified insulation resistance or greater between power cord plug prongs and externally exposed parts of the set (RF terminals, antenna terminals, video and audio input and output terminals, microphone jacks, earphone jacks, etc.). See table 1 below.

2.Dielectric strength test

Confirm specified dielectric strength or greater between power cord plug prongs and exposed accessible parts of the set (RF terminals, antenna terminals, video and audio input and output terminals, microphone jacks, earphone jacks, etc.). See table 1 below.

3.Clearance distance

When replacing primary circuit components, confirm specified clearance distance (d), (d’) between soldered terminals, and between terminals and surrounding metallic parts. See table 1 below.

Chassis

Fig. 8

d

d'

Power cord,

primary wire

4.Leakage current test

Confirm specified or lower leakage current between earth ground/power cord plug prongs and externally exposed accessible parts (RF terminals, antenna terminals, video and audio input and output terminals, microphone jacks, earphone jacks, etc.).

Measuring Method : (Power ON)

Insert load Z between earth ground/power cord plug prongs and externally exposed accessible parts. Use an AC voltmeter to measure across both terminals of load Z. See figure 9 and following table 2.

	a	b
Externally	Z	c
exposed	V
accessible part
	Fig. 9

5.Grounding (Class 1 model only)

Confirm specified or lower grounding impedance between earth pin in AC inlet and externally exposed accessible parts (Video in, Video out, Audio in, Audio out or Fixing screw etc.).

Measuring Method:

Connect milli ohm meter between earth pin in AC inlet and exposed accessible parts. See figure 10 and grounding specifications.

AC inlet	Grounding Specifications
	Exposed accessible part	Grounding Impedance (Z)
	Region
	USA & Canada	Z ≤ 0.1 ohm
Earth pin	Europe & Australia	Z ≤ 0.5 ohm

Milli ohm meter

Fig. 10

AC Line Voltage

Region

Insulation Resistance (R)

Dielectric Strength

Clearance Distance (d), (d')

100 V

Japan

R

£

1 MΩ/500 V DC

AC 1 kV 1 minute

d, d'

£

3 mm

100 to 240 V

AC 1.5 kV 1 miute

d, d'

£

4 mm

110 to 130 V

USA & Canada

1 MΩ

³

R

³

12 MΩ/500 V DC

AC 1 kV 1 minute

d, d'

£

3.2 mm

110 to 130 V

AC 3 kV 1 minute

d

£

4 mm

Europe & Australia

R

£ 10 MΩ/500 V DC

(Class 2)

d'

£

8 mm (Power cord)

200 to 240 V

AC 1.5 kV 1 minute

d'

£

6 mm (Primary wire)

(Class 1)

Table 1 Specifications for each region

AC Line Voltage

Region

Load Z

Leakage Current (i)

a, b, c

100 V

Japan

1 kΩ

i

≤

1 mA rms

Exposed accessible parts

110 to 130 V

USA & Canada

0.15 F

1.5 kΩ

i

≤

0.5 mA rms

Exposed accessible parts

i

≤

0.7 mA peak

Antenna earth terminals

110 to 130 V

Europe & Australia

2 kΩ

i

≤

2 mA dc

220 to 240 V

i

≤

0.7 mA peak

Other terminals

50 kΩ

i ≤

2 mA dc

Table 2 Leakage current specifications for each region

Note: These tables are unofficial and for reference only. Be sure to confirm the precise values for your particular country and locality.

2	S40888-01

PROPOSAL FOR APPLYING SHORT PROTECTION

• The Contents of Examination

As all the IC that is applied to VCR is controlled by IIC, mutual communication, if Vcc of IC is short or open with detecting ‘Acknowledge’ data of the specific IC according to each power(5V, 5VT) -COM gets unable to detect ‘ACK’ data.

-COM regards this case as abnormal one and if it can’t detect ‘ACK’ data for a certain time(3.5 sec) the signal of ‘Power Control’ and ‘Timer Control’ are switched to ‘Low’. As a result POWER SwitchingTR is kept from generating heat and fire.

Conception
BLOCK Diagram	5V SW	TIMER
		CONTROL
	SLAVE with 5V
	IIC BUS	MASTER
	SLAVE with 5V
	5V SW	POWER
		CONTROL

• POWER for each IC

5.2V

AVCP IC

5.3VA Hi-Fi IC

TUNER

A2 IC

Power Control

1-4

SERVICE NOTICE ON REPLACING EEPROM

In case that defective EEPROM of PAL models is replaced, to operate these sets from the initial state MP KEY must be repaired as well before delivering to the customer.

If MP KEY isn’t repaired the setting of RF OUT channel or LANGUAGE might be different from that for custormer’s country.

•MP KEY : In case of PAL VCR if holding the REC button on the front panel and the CLEAR button on the remote control handset for 5 ~ 7 seconds with power being switch all and no tapes,

OK is displayed at FLD for FLD models and LED becomes on for LED CLOCK models. This is the state that initializing EEPROM is finished.

(In case of PAL VCP if holding the REC button on the front panel and the MENU button on the remote control handset for 5 ~ 7 seconds with power being off and no tapes, All the LED DOTs become on. This is the state that initializing EEPROM is finished.)

•MP KEY's function: MP KEY sets EEPROM's data up to the initial state.

OK

•FLD MODEL:

MP KEY “OK”

		TIMER			• LED CLOCK MODEL:
REC
					MP KEY Switch all on a Light
VCR			AM

• LED DOT MODEL:

MP KEY Switch all on a Light

1-5

SERVICE INFORMATION FOR EEPROM IC SETTING

EEPROM option code No. setting

NAME	HEX	BINARY
OPT1	00	00000000
OPT2	00	00000000
OPT3	00	00000000
WR : OK	I : EXIT MOVE :
EDIT :
MASKROM : R00
EEPROM : R00		LG CODE

MODEL NAME HEX BINARY

HR-J695EA OPTION1 10 00000000 OPTION2 61 00000000 OPTION3 44 00000000

HR-J291EA OPTION1 10 00000000 OPTION2 51 00000000 OPTION3 44 00000000

HR-J291MS OPTION1 00 00000000 OPTION2 50 00000000 OPTION3 44 00000000

HR-J297MS OPTION1 00 00000000 OPTION2 50 00000000 OPTION3 44 00000000

WR : OK I : EXIT MOVE : EDIT :

EEPROM option code No. setting procedure

1.DETECT NEW EEPROM (OPTION EDIT SCREEN)

-After changing EEPROM, EEPROM EDIT is displayed in the field if pressing “PLAY”key on SET and “0” Key on Remocon in the status of powering OFF.

For JVC model, change a remocon key by using following JIG key.

JVC MODEL : FRONT UP + FRONT FF (LG/JVC CODE)

Option Screen → Change JVC Code →

Service JVC R/C

-Setup option data using the cursor Up/Down key of a remote control.

2.EEPROM WRITED COMPLETE SCREEN

-Writes data on EEPROM by using REMOCON "OK".

-If completing the option data screen with a menu key, Powering Off is automatically done and the option edit screen is arranged.

3.PG ADJUST

a) Insert the PAL SP Test Tape and play.

Note) Adjust the distance of X, pressing “PLAY” key on SET and “0” key on Remocon after the PAL SP TEST TAPE is inseted.

In Initial Mode, “- -” is displayed in CLK and LED is ON in DOT.

b) Press again “PLAY” key on SET and “0” key on Remocon.

(“- -” is displayed in CLK and LED is blink in DOT. Afer adjusting PG, LED is preserved as a).)

c) Connect the CH1 of the oscilloscope to the H/SW and CD2 to the Video out for the VCR.

d) Trigger the mixed Video Signal of CH2 to the CH1 H/SW(W714, W715), and then check the distance (time difference), which is from the selected A(B) Head point of the H/SW(W714,

W715) signal to the starting point of the vertical synchronized signal, to 6.5H ± 0.5H (416µs, 1H=30.0µs).

4.EEPROM INITIAL

-SETUP is displayed in the field if pressing the FRONT REC KEY with the remocon number "CLEAR" key pressed in the status of powering Off.

-AUTO SEARCH is done since the initial screen of ACMS is serviced if powering On.

-Check basic operation (PLAY/RECORD...)

1-6

	SPECIFICATIONS
General
Power	: 100~240V, 50/60Hz
Power consumption	: Approx. 12 watts(Energy Saving mode : 3 watts)
Video Head system	: Rotary 2heads, helical scanning system
		(HR-J291EA/HR-J291MS/HR-J297MS)
		Double azimuth 4 heads, helical scanning system
		(HR-J695EA)
Tape speed	: 23.39 mm/sec (SP mode)11.69 mm/sec(LP mode)
Tape format	: Tape width 1/2” (12.7 mm high density VHS tape)
Maximum recording time	: 4 hours in SP mode/8 hours in LP mode (with E-240 tape)
Rewind time	: Approx. 150 sec. (with E-180 tape)
Dimensions (W X H X D)	: 360 x 94.5 x 230 mm
Weight	: 9.0 lbs. (4.0 kg)
Operating temperature	: 41°F-95°F (5°C-35°C)
Operating humidity	: Less than 80%
Timer	: 24 hours display type
Video
Input level	: VIDEO IN (RCA type)
		1.0 Vp-p, 75 ohm, unbalanced
Output level	: VIDEO OUT (RCA type)
		1.0 Vp-p, 75 ohm, unbalanced
Signal to noise ratio	: More than 43 dBm
RF Modulator	: UHF 28~68(Adjustable)
Audio
Input level	: AUDIO IN (RCA type)
		-6.0dBm, more than 47kΩ
Output level	: AUDIO OUT (RCA type)
		-6.0 dBm, less than 1kΩ
Track		Mono track &
			Hi-Fi track
Frequency response	: Normal : 100 Hz - 10 kHz(-6/+3 dB)
		Hi-Fi : 20 Hz - 20 kHz(3-/+3 dB)
Signal to noise ratio	: Normal : More than 43 dBm(at SP mode)
Dynamic range	:
		Hi-Fi : More than 70 dBm(at SP mode)
		Hi-Fi : More than 85 dBm(at SP mode)

• Design and specifications are subject to change without notice.

:HR-J695EA Model only

1-7

SECTION2 CABINET & MAIN FRAME

SERVICE METHOD

(1) Disassembly Flow

Top Case

Bottom Cover

Front Panel

Housing & Deck

Assembly

Main C.B.A

LED C.B.A

(2) Re-assembly Flow for service like Fig. 2-1

LED C.B.A

Main C.B.A

Housing & Deck

Assembly

(3) To check and replace Electrical parts

Disassemble the unit according to No.1) Disassembly Flow.

Re-assemble the unit according to No.2) Re-assembly Flow.

Place the unit like Fig. 2-1

Check and replace Electrical parts.

NOTE :

Insert Video Cassette Tape inversely like Fig. 2-1 to check and replace defective parts.

In disassembling and reassembling, be careful not to damaged CST switch.

(Positioned Upside Down)

C.B.A Princioal

Housing y Mecanismo

Cassette Tape

(Upside Down)

Fig.2-1

2-1

5

4

3

2

1

EXPLODED VIEWS

1. Cabinet and Main Frame Section

462

250

A46

320

462 457

NOTE) Refer to “SECTION 5 REPLACEMENT PARTS LIST” in order to look for the part number of each part.

OPTIONAL PARTS

300

		330
464
261	260	452
457
A00		A49
		A42

A43

284

283

280

A

B

C

D

2-2