JVC HR-S5911U, HR-S5901 Service Manual

VIDEO/AUDIO

Signal system

Recording/Playback system

Signal-to-noise ratio Horizontal resolution

VHS

S-VHS Frequency range

Normal audio Hi-Fi audio

Input/Output

Weight

Format

Maximum recording time SP

EP

SERVICE MANUAL

VIDEO CASSETTE RECORDER

HR-S5901U,

HR-S5911U, HR-S5911U(C)

REW

FF

24HR QUICK REC LINK PROGRAM

POWER	INSERT	A.DUB
S-VIDEO

SPECIFICATIONS

GENERAL

TUNER

Power requirement	:	AC 120 Vd, 60 Hz
Power consumption
Power on	:	17 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 to140°F)
Operating position	:	Horizontal only
Dimensions (W x H x D) :		435 mm x 94 mm x 247 mm
		(17-3/16" x 3-3/4" x 9-3/4")
	:	2.8 kg (6.2 lbs)
	:	S-VHS/VHS NTSC standard

Tuning system	:	Frequency-synthesized tuner
Channel coverage
VHF	: Channels 2–13
UHF	: Channels 14–69
CATV	:	113 Channels
RF output	: Channel 3 or 4 (switchable; preset to
		Channel 3 when shipped) 75 ohms,
		unbalanced

TIMER

Clock reference	:	Quartz
Program capacity	:	1-year programmable timer/
		8 programs

:210 min. with ST-210 video cassette

:630 min. with ST-210 video cassette

Memory backup for timer is not supported.

ACCESSORIES

			Provided accessories	: Infrared remote control unit,
	: NTSC-type color signal and EIA			“AA” battery x 2,
		monochrome signal, 525 lines/		S-video cable (4-pin),
		60 fields		RF cable (F-type)
	: DA-4 (Double Azimuth) head helical
		scan system	Specifications shown are for SP mode unless specified otherwise.
	:	45 dB
			E. & O.E. Design and specifications subject to change without
			notice.
	:	230 lines
	:	400 lines
	: 70 Hz to 10,000 Hz
	: 20 Hz to 20,000 Hz
	: RCA connectors (IN x 2, OUT x 1)
		S-video connectors (IN x 2, OUT x 1)		V15S15
		This service manual is printed on 100% recycled paper.		No.82911
		COPYRIGHT © 2002 VICTOR COMPANY OF JAPAN, LTD		March 2002

TABLE OF CONTENTS

Section	Title	Page
Important Safety Precautions
INSTRUCTIONS
1. DISASSEMBLY
1.1 Manually removing the cassette tape .........................		1-1
1.2 Removing the major parts ...........................................		1-2
1.2.1 How to read the procedure table ...........................		1-2
1.2.2 Disassembly procedure ........................................		1-2
1.3 Emergency display function ........................................		1-4
1.3.1 Displaying the EMG information ...........................		1-4
1.3.2 Clearing the EMG history ......................................		1-4
1.3.3 Details of the OSD display in the EMG display mode ...		1-5
1.3.4 EMG content description .......................................		1-6
1.3.5 EMG detail information<1> ...................................		1-7
1.3.6 EMG detail information<2> ...................................		1-8
1.3.7 EMG detail information<3> ...................................		1-8
1.4 Service position ...........................................................		1-9
1.4.1 How to set the "Service position" ..........................		1-9
1.5 Jig RCU mode .............................................................		1-9
1.5.1 Setting the Jig RCU mode ....................................		1-9
1.5.2 Setting the User RCU mode .................................		1-9
1.6 Mechanism service mode ...........................................		1-9
1.6.1 How to set the "Mechanism service mode" ...........		1-9
1.6.2 How to exit from the "Mechanism service mode" .. 1-9
1.7 Maintenance and inspection .....................................		1-10
1.7.1 Cleaning ..............................................................		1-10
1.7.2 Lubrication ..........................................................		1-10
1.7.3 Suggested servicing schedule for main components ..		1-10
2. MECHANISM
2.1 Before disassembling ..................................................		2-1
2.1.1 Notes .....................................................................		2-1
2.1.2 Mechanism operation check .................................		2-1
2.1.3 Setting the mechanism assembling mode ............		2-1
2.1.4 Layout of the main mechanism parts ....................		2-2
2.1.5 Disassembling procedure table .............................		2-3
2.2 Replacement of the main mechanism parts ................		2-4
2.2.1 Cassette holder .....................................................		2-4
2.2.2 A/C head ...............................................................		2-5
2.2.3 Guide arm, pinch roller arm ..................................		2-6
2.2.4 Idler arm, idler gear 1/2 .........................................		2-6
2.2.5 Main brake(T), brake lever, tension arm,reel disk(S/T), Rec safety lever ...		2-6
2.2.6 Press lever, control cam, capstan brake assembly,loading motor assembly . 2-7
2.2.7 Capstan motor, load gear, control plate ................		2-8
2.2.8 Clutch unit assembly, direct gear ..........................		2-9
2.3 Mechanism timing chart ............................................		2-10
3. ADJUSTMENT
3.1 Before adjustment ........................................................		3-1
3.1.1 Precaution .............................................................		3-1
3.1.2 Required test equipments .....................................		3-1
3.1.3 Required adjustment tools ....................................		3-1
3.1.4 Color(colour) bar signal, color(colour) bar pattern		3-1
3.1.5 Switch settings ......................................................		3-1
3.1.6 Manual tracking mode (Auto tracking ON/OFF) setting		3-2
3.1.7 EVR adjustment ....................................................		3-2
3.2 Mechanism compatibility adjustment ..........................		3-2
3.2.1 Tension pole position .............................................		3-2
3.2.2 FM waveform linearity ...........................................		3-3
3.2.3 Height and tilt of the A/C head ..............................		3-3
3.2.4 A/C head phase(X-value) ......................................		3-4
3.3 Electrical adjustment ...................................................		3-4
3.3.1 Servo circuit ..........................................................		3-4
3.3.1.1 Switching point .................................................		3-4
3.3.1.2 Slow tracking preset .........................................		3-4
3.3.2 Video circuit ...........................................................		3-5
3.3.2.1 EE Y/PB Y (S-VHS/VHS)level ..........................		3-5
3.3.3 Audio circuit ...........................................................		3-5
3.3.3.1 Audio REC FM .................................................		3-5

Section	Title	Page
4. CHARTS AND DIAGRAMS
4.1 BOARD INTERCONNECTIONS .................................		4-3
4.2 MAIN(VIDEO/N. AUDIO) SCHEMATIC DIAGRAM .....		4-5
4.3 MAIN(S-SUB) SCHEMATIC DIAGRAM ......................		4-7
4.4 MAIN(SYSCON) SCHEMATIC DIAGRAM ..................		4-9
4.5 MAIN(SW.REG) SCHEMATIC DIAGRAM .................		4-11
4.6 MAIN(TUNER) SCHEMATIC DIAGRAM ...................		4-13
4.7 MAIN(FMA/DEMOD) SCHEMATIC DIAGRAM .........		4-15
4.8 MAIN(FRONT) SCHEMATIC DIAGRAM ...................		4-17
4.9 MAIN(TERMINAL) SCHEMATIC DIAGRAM .............		4-19
4.10 2D DIGITAL SCHEMATIC DIAGRAM .....................		4-21
4.11 2D DIGITAL CIRCUIT BOARD ................................		4-23
4.12 MAIN CIRCUIT BOARD ..........................................		4-25
4.13 REMOTE CONTROLLER SCEMATIC DIAGRAM ..		4-27
4.14 WAVEFORMS .........................................................		4-28
4.15 VOLTAGE CHARTS ................................................		4-29
4.16 FDP GRID ASSIGNMENT AND ANODE CONNECTION ...		4-29
4.17 CPU PIN FUNCTION ..............................................		4-30
4.18 SYSTEM CONTROL BLOCK DIAGRAM ................		4-31
4.19 VIDEO BLOCK DIAGRAM ......................................		4-33
4.20 AUDIO BLOCK DIAGRAM ......................................		4-37
5. PARTS LIST
5.1 PACKING AND ACCESSORY ASSEMBLY<M1> .......		5-1
5.2 FINAL ASSEMBLY<M2> .............................................		5-2
5.3 MECHANISM ASSEMBLY<M4> .................................		5-4
5.4 ELECTRICAL PARTS LIST .........................................		5-6
MAIN BOARD ASSEMBLY<03> .....................................		5-6
2D DIGITAL BOARD ASSEMBLY<05> .........................		5-12
A/C HEAD BOARD ASSEMBLY<12> ...........................		5-13
REAR S JACK BOARD ASSEMBLY<29> .....................		5-13
FRONT S JACK BOARD ASSEMBLY<36> ..................		5-13
ADV.JOG/SW BOARD ASSEMBLY<38> ......................		5-13
LOADING MOTOR BOARD ASSEMBLY<55> ..............		5-13
R.PAUSE BOARD ASSEMBLY<99> .............................		5-13

The following table lists the differing point(s) between models HR-S5901U, HR-S5911U, and HR-S5911U(C).

ITEM	MODEL	HR-S5901U	HR-S5911U	HR-S5911U(C)
BODY COLOR		BLACK	PURE-SILVER

Note(s): Mark is same as left.

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

SECTION 1

DISASSEMBLY

1.1 Manually removing the cassette tape

If you cannot remove the cassette tape which is loaded because of any electrical or mechanical failures, manually remove it by taking the following steps.

(1)Unplug the power cord plug from the power outlet.

(2)Refer to the disassembly procedure of the VCR and perform the disassembly of the major parts before removing the mechanism assembly. (See Fig. 1-1a.)

Fig.	1-1a
Tension arm assembly
Pole base assembly	Pinch roller arm assembly
Spring(a)
	Direction of unloading
Fig.	1-1b

(3)Unload the pole base assembly by manually turning the gear of the loading motor until the pole base assembly is hidden behind the cassette lid. In doing so, hold the tape by the hand to keep the slack away from any grease. (See Fig. 1-1b.)

In case of mechanical failures, while keeping the tension arm assembly free from tension, pull out the tape on the pole base assembly. Take the spring(a) of the pinch roller arm assembly off the hook, and detach it from the tape.

(4)Remove the screw (a) of the side frame (L/R).

(5)Hold the slack tape and cassette cover together, lift the cassette tape, top frame, cassette holder and side frames (L, R) together from the rear and remove them by disengaging the hooks (a) and (b).

	Screw(a)	Cassette holder
	Cassette tape
	Top frame		Side frame(R)
			Screw(a)
	Hook(a)
	Side frame(L)		Hook(b)
	Fig.	1-1c

(6)Take up the slack of the tape into the cassette. This completes removal of the cassette tape.

1-1

1.2 Removing the major parts

1.2.1How to read the procedure table

This table shows the steps for disassembly of the externally furnished parts and board assemblies. Reverse these steps when re-assembling them.

<Example>

	Step/		Part Name		Fig.		Point		Note
	LocNo.				No.
	[1]		Top cover,		1-3a		4(S1a),(S1b),3(L1a),		<Note 1a>
							2(SD1a),(P1a),(W1a),
							CN1(WR1a),
			Bracket				----------------------------------------
							2(S1c)
	(1)		(2)		(3)		(4)		(5)

(1)Order of steps in Procedure

When reassembling, perform the step(s) in the reverse order. These numbers are also used as the identification (location) No. of parts Figures.

(2)Part name to be removed or installed.

(3)Fig. No. showing procedure or part location.

(4)Identification of part to be removed, unhooked, unlocked, released, unplugged, unclamped or unsoldered.

P= Spring, W= Washer, S= Screw, L= Locking tab, SD= Solder, CN**(WR**)= Remove the wire (WR**) from the connector (CN**).

Note:

•The bracketed ( ) WR of the connector symbol are assigned nos. in priority order and do not correspond to those on the spare parts list.

(5) Adjustment information for installation

	1.2.2	Disassembly procedure
	Step/	Part Name	Fig.	Point	Note
	LocNo.		No.
	[1]	Top cover	1-2-2d	3(S1a), 2(L1a)
	[2]	Front panel assembly	1-2-2d	2(S2a), 4(L2a), 3(L2b),	<Note 2a>
			1-2-2a	CN7001(WR2a),	<Note 2b>
				CN7103(WR2b)
		(Adv. Jog/SW board assembly)		--------------------------
				3(S2b), Knob assembly
		(Front S Jack board assembly)		---------------------------
				2(S2c)
	[3]	Mechanism assembly	1-2-2d	CN2001(WR3a),	<Note 2a>
				(S3a), (S3b)	<Note 3a>
		(Drum Shield)		--------------------------	<Note 3b>
				(S3f), (L3a)
		(Drum assembly)	1-2-2b-	CN1(WR3b),-------------------------	<Note 3c>
			1-2-2c	(S3c), (S3d), (S3e)
	[4]	Main board assembly	1-2-2d	2(L4a), (L4b), 2(L4c)
		Rear S Jack board assembly

<Note 2a>

•Be careful not to damage the connector and wire etc. during connection and disconnection.

•When connecting the flat wire to the connector, be careful with the flat wire direction.

<Note 2b>

•When reattaching the Front panel assembly, make sure that the door opener of the Side frame (R) is lowered in position prior to the reinstallation.

•When reattaching the Front panel assembly, pay careful attention to the switch lever of the Front panel assembly not to make it touch the switch knob of the Main board assembly from the side.

•When reattaching the Front panel assembly, lift the Cassette door slightly.

1-2

	Door
	opener
	Side	Switch
		lever
	frame(R)
		Switch
		knob
	<Note 3a>	Fig. 1-2-2a

•When reattaching the Mechanism assembly, secure the screws (S3a to S3b) in the order of a, b.

<Note 3b>

•When reattaching the Mechanism assembly, be sure to align the phase of the Rotary encoder on the Main board assembly.

•When reattaching the Mechanism assembly, set the “Mechanism assembling mode”. (See “section 2 mechanism”.)

•When reattaching the Mechanism assembly to the Main board assembly, take care not to damage the sensors and switch on the Main board assembly.

<Note 3c>

•When reattaching the Drum assembly, secure the screws (S3c to S3e) in the order of c, d, e.

(S3c) (S3d)(S3e)

Mechanism assembly

Drum assembly <Note 3c>

(S3e)

(S3d)

HOOK

(S3c)

<NOTE>

Attach the Drum assembly appropriately,

since the installation state of the Drum assembly influences the FM WAVEFORM LINEARITY greatly.

Fig. 1-2-2b

•When handling the drum assembly alone, hold it by the motor or shaft. Be careful not to touch other parts, especially the video heads. Also take care not to damage the connectors.

Shaft

Motor

Video heads

Fig. 1-2-2c

NOTE) After screwing,execute the

adjustment inspection of the tape running. (S3f)

[3] Drum shield

(S1a)

Slot to fit at (L3a) of the Bottom chassis.

Mechanism assembly

(S2a)

(S3a) <Note 3a>

[3]Mechanism assembly

<Note 3b>

[4] Rear S Jack	d
board assembly
	c
[4] Main board	Q3002
assembly
Switch knob
<Note 2b>

				Drum
			Screw(S3f)
	e
	[3] Drum assembly
	<Note 3c>		FE head	Pole base	[1] Top cover
			Pole base
		(S2a)		(Take up)
			(Supply)	Drum shield
		(WR3a)
		<Note 2a>
b			(S3b)	REAR SIDE	Hang the hook of the Terminal board (L4c)
			<Note 3a>
			(L1a)		in hole of Bottom chassis.
					(L1a)
		b
	(S3e)
	<Note 3c>				NOTE) Hang the hook of the Top cover
	(S3d)
b					in hold of Bottom chassis.
	<Note 3c>
	(S3c)		Must confirm soldering condition as no soldering and dry soldering
	<Note 3c>
			at portion of Power cord lead on Main board assembly before atta-
CN1			ch Main board assembly to Bottom chassis.
			JS3001
D3001
	JS3001	Q3001		Accord the position of V gap on R. Encoder and PWB silk " ".
				Accord the position of Boss on R. Encoder and PWB silk " ".

			(L4b)		NOTE) When you fix S Jack board assembly with the screw,
Bottom chassis	d				put jig under Front panel assembly.
		c	e
				(S2b)	Back side of Front panel assembly [2] Front S Jack
			(L3a)
					[2] Adv. Jog/SW board assembly	board assembly

[2] Front panel assembly <Note 2b>

(L2a)

z

(L2b)

(L2a)

Cassette door <Note 2b>

(L2b)

b

z

back side

(WR2a)

<Note 2a> NOTE) 20mm

NOTE) Insert FFC wire to the connector before attaching Adv. Jog/SW board assembly to Front panel assembly.

. Power cord arrangement should be following drawing.

(WR2b) <Note 2a>

Switch lever	back side
<Note 2b>	(S2c)

1.Insert FFC wire to the connector before attaching Front S Jack board assembly to Front panel assembly.

2.Fig. 1 reference

30mm

[2] Knob assembly

Absorb the looseness the wire in the	from Capstan MDA board assembly
	(WR3b)
S Jack side.	<Note 2a> right side
FW7104	CN2001
FW7107
C903
A
VR2251	right side
right side

Power cord should not be touch to the VA5001 and C5001.

WHITE	NOTE	60mm
LINE

Fig.1

1. Insert direction of FFC WIRE as follows.

WHITE	right side	back side
LINE

VA5001 C5001

electrode side

supporting side

2. FFC WIRE and DRUM FPC WIRE should be insert as follows.

OK		NG
	90°
CN	CN	CN

DETAIL " A " DETAIL " B "

CN7103

B

from Front S Jack board assembly

	back side		• The wire of FW3001 or FW3002
			should not approach the moving				Bend the wire by the root.
			parts of Mechanism assembly.
	CN7001		• Absurb the looseness of the wire
			on the Tuner side.	F	W		2D DIGITAL
				F		71
				W			04
				71		07
(L4a)		from Adv. Jog/SW					CN7103
Hang the hook of Bottom chassis on the Main board assembly.
			board assembly	FW3001 FW3002

Fig. 1-2-2d

1-3

1.3 Emergency display function

This unit saves details of the last two emergencies as the EMG history and allows the status of the VCR and the mechanism of each emergency to be shown both on the display and as OSD information.

When using the emergency function, it is required to set the VCR to the Jig RCU mode (the mode in which codes from the Jig RCU can be received).

Jig RCU

[Data transmitting method] Depress the “ ” ( 3 ) button after the data code is set.

INITIAL MODE

CUSTOM CODE 43: A CODE

DATA CODE

Fig. 1-3a Jig RCU [PTU94023B]

1.3.1 Displaying the EMG information

The EMG detail of information can be displayed by transmitting the code "59" from the Jig RCU.

Note:

•The EMG detail information <1><2> show the information on the latest EMG.

It becomes “ – – : – – : – –” when there is no latest EMG record.

	0: 00		Normal display
	E: **		EMG content display (Latest)		See 1.3.4.
	1E: **		EMG content display (Previous)		See 1.3.4.
1: *1			EMG detail information <1>		See 1.3.5.
			[Deck operation mode]
2: *2			EMG detail information <1>		See 1.3.5.
			[Mechanism operation mode]
3: 34			EMG detail information <1>		See 1.3.5.
			[Mechanism sensor information and Mechanism mode position]
4: *5			EMG detail information <2>		See 1.3.6.
			[Type of the cassette tape in use <1>]
5: *6			EMG detail information <2>		See 1.3.6.
			[Winding position of the cassette tape in use]
6: *7			EMG detail information <2>		See 1.3.6.
			[Type of the cassette tape in use <2> (Winding area)]
7: *8			EMG detail information <3>		See 1.3.7.
			[Previous deck operation mode]
8: *9			EMG detail information <3>		See 1.3.7.
			[The deck operation mode of the one before the last]
9: *10			EMG detail information <3>		See 1.3.7.
			[The deck operation mode of the one prior to one above]

Fig. 1-3-1a EMG display of 7segment LED display model

0 : 00 : 00

E: * * : * *

*1: *2 : 34

*5: *6 : *7

Normal display (Counter or clock)
EMG content display (E:Latest:Previous)			See 1.3.4.
[EMG code display mode]
EMG detail information <1> display			See 1.3.5.
[Deck and other mode display mode]
EMG detail information <2> display			See 1.3.6.
[Cassette display mode]

*8: *9 : *10 EMG detail information <3> display			See 1.3.7.
	[Deck mode history dispaly mode]

Fig. 1-3-1b EMG display of FDP display model

<Reference> EMG display of FDP display mode

(1)Transmit the code “59” from the Jig RCU.

The FDP shows the EMG content in the form of “E: * * : * * ”.

<Example 1> E : 01 : 03

Previous EMG

Latest EMG

<Example 2> E : – – : – – No EMG record

(2)Transmit the code “59” from the Jig RCU again.

The FDP shows the EMG detail information <1> in the form of “ * 1 : * 2 : 34 ”.

*1 : Deck operation mode at the moment of EMG

*2 : Mechanism operation mode at the moment of EMG 3– : Mechanism sensor information at the moment of

EMG

–4 : Mechanism mode position at the moment of EMG

(3)Transmit the code “59” from the Jig RCU once again.

The FDP shows the EMG detail information <2> in the form of “ * 5 : * 6 : * 7 ”.

*5 : Type of the cassette tape in use <1> .

*6 : Winding position of the cassette tape in use

*7 : Type of the cassette tape in use <2> (Winding area)

(4)Transmit the code “59” from the Jig RCU once again.

The FDP shows the EMG detail information <3> in the form of “*8 : *9 : *10”.

*8 : Previous deck operation mode at the moment of EMG

*9 : The deck operation mode of the one before the last at the moment of EMG

*10 : The deck operation mode of the one prior to one above at the moment of EMG

(5)Transmit the code “59” from the Jig RCU once again to reset the display.

1.3.2Clearing the EMG history

(1)Display the EMG history.

(2)Transmit the code “36” from the Jig RCU.

(3)Reset the EMG display.

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1.3.3 Details of the OSD display in the EMG display mode

During the EMG display, the OSD shows the data on the deck mode, etc. The details of the display contents are as follows.

Notes:

•The display is variable depending on the part No. of the System Control microcomputer (IC3001) built into the VCR. In the following, refer to the figure carrying the same two characters as the top two characters of the part

number of your IC.

•The sensor information in the OSD display contents is partially different from the mechanism sensor information in EMG detail information <1>.

[For MN* only]

AA	BB	CC	DD	EE
FF	GG	HH	I I	J J
KK	L L	MM	NN	OO
PP	QQ	RR	SS	TT
UU	VV	WW	XX	YY

A A : Deck operation mode (See EMG detail information <1>.)

B B : Mechanism operation mode (See EMG detail of information <1>.) C C : Mechanism transition flag

D D : Capstan motor control status E E : Loading motor control status

F F : Sensor information (See sensor information details.)

GG: Capstan motor speed

HH: Key code (JVC code)

II : Supply reel winding diameter data, higher 8 bits.

JJ : Supply reel winding diameter data, lower 8 bits.

KK : Mechanism sensor information & mechanism mode position (See EMG detail of information <1>.)

L L : Tape speed data, higher 8 bits. MM : Tape speed data, lower 8 bits.

N N : Cassette tape type <2>, higher 8 bits. (See EMG detail of information <2>.)

OO: Cassette tape type <2>, lower 8 bits. (See EMG detail of information <2>.)

P P : General data display area

Y Y : General data display area

*FF: Sensor information details

<Display> ** h

*	*	*	*	*	*	*	*

Encoder data

(See Mechanism mode sequence.)

Cassette tab present = 1

Cassette tab broken = 0

Cassette absent = 1

Cassette present = 0

Start sensor

End sensor

[For *HD only]

AA	BB	CC
DD	EE	FF
GGGG	HHHH
I I	J J J J
KKKK	L L L L	MMMM
ROM No.

A A : Key code (JVC code)

B B : Deck operation mode (See EMG detail information <1>.) C C : Mechanism operation mode (See EMG detail information <1>.) D D : Sensor information (See sensor information details.)

E E : Capstan motor speed (Search, double speed) F F : Tracking value

G G G G: Cassette tape type <2>, 16 bits. (See EMG detail information <2>.)

H H H H : Supply reel winding diameter data

I I : Capstan motor speed (FF/REW, double speed) J J J J : Tape speed data, lower 8 bits.

K K K K : General data display area L L L L : General data display area MMMM : General data display area

*DD: Sensor information details

<Display> ** h

*	*	*	*	*	*	*	*

Encoder data

(See Mechanism mode sequence.) Remote pause

End sensor Start sensor

Cassette tab present = 1 Cassette tab broken = 0

[For both MN*/HD*]

Mechanism mode sequence

Mechanism mode - Encoder data

1

2

3

4

5

6

7

8

9

10

11

LSA

LSB

LSC

LSD

	Encoder output = Low					Encoder output = High
	or						or
	Trerminal - GND = SHORT					Trerminal - GND = OPEN
							LSD LSC LSB LSA GND
No.	Position		Encoder data
1	EJECT		0 h = 0000				5	4	3	2	1
2	EJECT1		1 h = 0001
3	EJECT2		2 h = 0010
4	ULSTOP		3 h = 0011
5	UPPER		4 h = 0100
6	ONSTOP(PLAY)		5 h = 0101
7	FWD/SS		6 h = 0110
8	REV/SS		7 h = 0111
9	OFFSTOP		8 h = 1000
10	FFREW-BRAKE		9 h = 1001
11	FFREW		A h = 1010
12	MIDDLE		F h = 1111

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