JVC SR-VS30E/EK Service Manual

SERVICE MANUAL

Mini DV/S-VHS VIDEO CASSETTE RECORDER

SR-VS30E/EK

TV

CABLE/SAT DV VHS

1 LCD PROG AUDIO

– –:– – TV/VCR

2

1	2		3
4	5		6	3
VPS/PDC	DAILY/QTDN. WEEKLY/HEBDO
7	8		9	4
				4
0000	AUX			MENU
	0
				ENTER/ENTREE
1 PROG		30 SEC		OK 3
2
START	STOP	DATE		PR
DEBUT	FIN
	EXPRESS
	TV PR		+
T				+
V
–				TV
	TV PR		–

PULL-OPEN
TIRER-OUVRIR			PR / +
			PUSH / TURN
		DV	VHS	24H
DV	DUB	VHS	EXPRESS
	COPIE
			1	3	2

PULL-OPEN TIRER-OUVRIR

625

SPECIFICATIONS (The specifications shown pertain specifically to the model SR-VS30E.)

GENERAL

Power requirement : AC 220 V - 240 Vd, 50 Hz/60 Hz Power consumption

Power on	: 31 W
Power off	: 6.5 W
Temperature	: 5°C to 40°C
Operating
Storage	: –20°C to 60°C
Operating position	: Horizontal only
Dimensions (WxHxD)
	: 435 mm x 106 mm x 380 mm
Weight	: 5.1 kg
Input/Output	: 21-pin SCART connectors:

IN/OUT x 1, IN/DECODER x 1 RCA connectors:

VIDEO IN x 1, AUDIO IN x 1, AUDIO OUT x 1

S-Video connectors: IN x 1, OUT x 1 DV connector:

IN/OUT x 1 (4-pin, IEEE1394 conformity, digital input/output)

VHS DECK VIDEO/AUDIO

DV DECK VIDEO/AUDIO

Signal system	: PAL-type colour signal, 625 lines
	50 fields
Recording system	: Digital Component Recording
Format	: DV format (SD mode)
Cassette	: Mini DV Cassette
Maximum recording time
(SP)	: 80 min. with M-DV80ME cassette
(LP)	: 120 min. with M-DV80ME cassette

Audio recording system

:PCM 48 kHz, 16 bit (2 ch)/ 32 kHz, 12 bit (4 ch)

TUNER/TIMER

TV channel storage capacity

: 99 positions (+AUX position) Tuning system : Frequency synthesized tuner Channel coverage : VHF 47 MHz – 89 MHz/

104 MHz – 300 MHz/

302 MHz – 470 MHz UHF 470 MHz – 862 MHz

Memory backup time

: Approx. 10 min.

Signal system	: PAL-type colour signal and CCIR
	monochrome signal, 625 lines
	50 fields
Recording system	: DA4 (Double Azimuth) head helical
	scan system
Format	: S-VHS/VHS PAL standard

Signal-to-noise ratio: 45 dB

Horizontal resolution

(SP/LP)	: 250 lines (VHS)
	400 lines (S-VHS)
Frequency range	: 70	Hz to 10,000	Hz (Normal audio)
	20	Hz to 20,000	Hz (Hi-Fi audio)
Maximum recording time
(SP)	: 240 min. with E-240 video cassette
(LP)	: 480 min. with E-240 video cassette

ACCESSORIES

Provided accessories

:RF cable,

21-pin SCART/RCA cable, BNC/RCA adapter x 2, Satellite Controller,

Infrared remote control unit, "R6" battery x 2

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

SR-VS30E/EK V14SD1

This service manual is printed on 100% recycled paper. COPYRIGHT © 2002 VICTOR COMPANY OF JAPAN, LTD

No.82910

March 2002

TABLE OF CONTENTS

Section Title Page

Important Safety Precautions

INSTRUCTIONS

1. DISASSEMBLY	1-1
1.1 HOW TO REMOVE THE MAJOR PARTS ........................................
1.1.1 Introduction ..................................................................................	1-1
1.2 HOW TO READ THE DISASSEMBLY AND ASSEMBLY ..................	1-1
1.3 DISCONNECTION OF CONNECTORS (WIRES) ............................	1-1
1.4 HOW TO REMOVE THE MAJOR PARTS <COM section> ..............	1-2
1.4.1 Disassembly flow chart ................................................................	1-2
1.4.2 Disassembly/assembly method <COM section> .........................	1-2
1.5 HOW TO REMOVE THE MAJOR PARTS <VHS section> ...............	1-4
1.5.1 Disassembly flow chart ................................................................	1-4
1.5.2 DIsassembly/assembly method <VHS section> ..........................	1-4
1.6 HOW TO REMOVE THE MAJOR PARTS <DV section> ..................	1-6
1.6.1 Disassembly flow chart ................................................................	1-6
1.6.2 Disassembly/assembly method <DV section> .............................	1-6
1.7 CONNECTION ..................................................................................	1-8
1.8 SERVICE POSITIONS ....................................................................	1-10
1.8.1 Requirement PATCH CORDS ....................................................	1-10
1.8.2 Service position <VHS SIDE> ....................................................	1-10
1.8.3 Service position <DV FOIL SIDE> .............................................	1-10
1.8.4 Service position <DV COMPONENT SIDE> ..............................	1-11
1.9 Jig RCU mode .................................................................................	1-11
1.9.1 Setting the Jig RCU mode .........................................................	1-11
1.9.2 Setting the User RCU mode ......................................................	1-11
1.10 MECHANISM SERVICE MODE ...................................................	1-12
1.10.1 How to set the “MECHANISM SERVICE MODE” ....................	1-12
1.11 EMERGENCY DISPLAY FUNCTION ............................................	1-13
1.11.1 Displaying the emergency information .....................................	1-13
1.11.2 Clearing the emergency history ...............................................	1-13
1.11.3 Emergency content description ................................................	1-14
1.11.4 Emergency detail information <1> ...........................................	1-15
1.11.5 Emergency detail information <2> ...........................................	1-16
2. MECHANISM ADJUSTMENT (VHS)	2-1
2.1 BEFORE STARTING REPAIR AND ADJUSTMENT .........................
2.1.1 Precautions ..................................................................................	2-1
2.1.2 Checking for Proper Mechanical Operations ...............................	2-1
2.1.3 Manually Removing the Cassette Tape .......................................	2-1
2.1.4 Jigs and Tools Required for Adjustment .......................................	2-2
2.1.5 Maintenance and Inspection ........................................................	2-3
2.2 REPLACEMENT OF MAJOR PARTS ...............................................	2-6
2.2.1 Before Starting Disassembling	2-6
(Phase matching between mechanical parts) ...............................
2.2.2 How to Set the Mechanism Assembling Mode .............................	2-6
2.2.3 Cassette Holder Assembly ...........................................................	2-6
2.2.4 Pinch Roller Arm Assembly ..........................................................	2-8
2.2.5 Guide Arm Assembly and Press Lever Assembly ........................	2-8
2.2.6 Audio Control Head ......................................................................	2-8
2.2.7 Loading Motor ..............................................................................	2-8
2.2.8 Capstan Motor .............................................................................	2-9
2.2.9 Pole Base Assembly (supply or take-up side) ..............................	2-9
2.2.10 Rotary Encoder ........................................................................	2-10
2.2.11 Clutch Unit ................................................................................	2-10
2.2.12 Change Lever Assembly, Direct Gear, Clutch Gear	2-10
and Coupling Gear ....................................................................
2.2.13 Link Lever ................................................................................	2-11
2.2.14 Cassette Gear, Control Cam and Worm Gear .........................	2-11
2.2.15 Control Plate ............................................................................	2-11
2.2.16 Loading Arm Gear (supply or take-up side)	2-12
and Loading Arm Gear Shaft ....................................................
2.2.17 Take-up Lever, Take-up Head and Control Plate Guide ..................	2-13
2.2.18 Capstan Brake Assembly .........................................................	2-13
2.2.19 Sub Brake Assembly (take-up side) .........................................	2-13
2.2.20 Main Brake Assembly (take-up side),
Reel Disk (take-up side)	2-13
and Main Brake Assembly (supply side) ...................................
2.2.21 Tension Brake Assembly, Reel Disk (supply side)	2-14
and Tension Arm Assembly .......................................................
2.2.22 Idler Lever, Idler Arm Assembly ...............................................	2-14
2.2.23 Stator Assembly .......................................................................	2-14
2.2.24 Rotor Assembly ........................................................................	2-14
2.2.25 Upper Drum Assembly .............................................................	2-15
2.3 COMPATIBILITY ADJUSTMENT ..................................................	2-16
2.3.1 Checking/Adjustment of FM Waveform Linearity .......................	2-16
2.3.2 Checking/Adjustment of the Height and Tilt of the Audio Control Head ....................	2-17
2.3.3 Checking/Adjustment of the Audio Control Head Phase (X-Value) ...............	2-17
2.3.4 Checking/Adjustment of the Standard Tracking Preset .............	2-18
2.3.5 Checking/Adjustment of the Tension Pole Position ....................	2-18
MECHANISM ADJUSTMENT (DV)	2-20
2.4 PREPARATION ...............................................................................
2.4.1 Precautions ................................................................................	2-20
2.4.2 Tools Required for Adjustments .................................................	2-20
2.4.3 Disassembly and Assembly Procedures ....................................	2-20
2.4.4 Screws and Washers Used in Disassembly/	2-20
Assembly of the Mechanism Assembly ......................................
2.5 DISASSEMBLY/ASSEMBLY OF THE MECHANISM ASSEMBLY ...................	2-21
2.5.1 Introduction ................................................................................	2-21
2.5.2 Mechanism Modes .....................................................................	2-21
2.6 MECHANISM TIMING CHART .......................................................	2-23
2.7 MECHANISM ASSEMBLY/DISASSEMBLY PROCEDURE TABLE ..................	2-24
2.8 DISASSEMBLY/ASSEMBLY ...........................................................	2-26
2.9 LIST OF PROCEDURES FOR DISASSEMBLY .............................	2-34
2.10 MECHANISM PHASE CHECK/ADJUSTMENT ............................	2-35
2.11 MECHANISM DISASSEMBLY/ASSEMBLY SHEET .....................	2-36

Section	Title	Page
2.12 POSITIONING THE TENSION POLE ...........................................		2-38
2.13 COMPATIBILITY AND ERROR RATE ADJUSTMENTS .................		2-39
2.13.1 Preparation ..............................................................................		2-39
2.13.2 Adjustment ...............................................................................		2-39
2.13.3 Linearity adjustment .................................................................		2-40
2.13.4 PB switching point adjustment .................................................		2-40
2.13.5 Error rate adjustment ...............................................................		2-40
2.13.6 Error rate measuring method ...................................................		2-40
2.14 TAPE EJECTION ..........................................................................		2-41
3. ELECTRICAL ADJUSTMENT (VHS)		3-1
3.1 PRECAUTION ..................................................................................
3.1.1 Required test equipments ............................................................		3-1
3.1.2 Required adjustment tools ...........................................................		3-1
3.1.3 Color (colour) bar signal,Color (colour) bar pattern .....................		3-1
3.1.4 Switch settings and standard precautions ...................................		3-1
3.1.5 EVR Adjustment ...........................................................................		3-1
3.2 SERVO CIRCUIT ..............................................................................		3-2
3.2.1 Switching point .............................................................................		3-2
3.2.2 Slow tracking preset .....................................................................		3-2
3.3 VIDEO CIRCUIT ...............................................................................		3-2
3.3.1 D/A level .......................................................................................		3-2
3.3.2 EE Y/PB Y (S-VHS/VHS) level .....................................................		3-2
3.3.3 REC color (colour) level ...............................................................		3-3
3.3.5 Video EQ (Frequency response) .................................................		3-3
3.3.6 AUTO PICTURE initial setting ......................................................		3-4
3.3.6 DV EE Y level ...............................................................................		3-4
3.4 AUDIO CIRCUIT ...............................................................................		3-4
3.4.1 Audio REC FM .............................................................................		3-4
3.5 SYSCON CIRCUIT ...........................................................................		3-4
3.5.1 Timer clock ...................................................................................		3-4
ELECTRICAL ADJUSTMENT (DV)		3-5
3.6 PREPARATION .................................................................................
3.6.1 Precautions ..................................................................................		3-5
3.6.2 Equipment required for adjustment ..............................................		3-5
3.6.3 Tools required for adjustments .....................................................		3-5
3.6.4 Setup ............................................................................................		3-5
4. CHARTS AND DIAGRAMS		4-1
NOTES OF SCHEMATIC DIAGRAM .....................................................
CIRCUIT BOARD NOTES .....................................................................		4-2
4.1 BOARD INTERCONNECTIONS	.......................................................	4-3
4.2 SWITCHING REGULATOR SCHEMATIC DIAGRAM .......................		4-5
4.3 MAIN (VIDEO/AUDIO) SCHEMATIC DIAGRAM ..............................		4-7
4.4 MAIN (VHS SYSCON) SCHEMATIC DIAGRAM ..............................		4-9
4.5 MAIN (TUNER) SCHEMATIC DIAGRAM .......................................		4-11
4.6 MAIN (VIDEO I/O & SUB EMPHA) SCHEMATIC DIAGRAM ..................		4-13
4.7 MAIN (AUDIO I/O) SCHEMATIC DIAGRAM ...................................		4-15
4.8 MAIN (CONNECTION) SCHEMATIC DIAGRAM ............................		4-17
4.9 3D DIGITAL/2M SCHEMATIC DIAGRAM .......................................		4-19
4.10 TERMINAL (S-SUB) SCHEMATIC DIAGRAM ..............................		4-21
4.11 TERMINAL (I/O) SCHEMATIC DIAGRAM ....................................		4-23
4.12 DEMODULATOR SCHEMATIC DIAGRAM ...................................		4-25
4.13 POWER SW, SW/DISPLAY AND JOG SCHEMATIC DIAGRAMS ...................		4-27
4.14 DV MSD SCHEMATIC DIAGRAM ................................................		4-29
4.15 DV MAIN SCHEMATIC DIAGRAM ...............................................		4-31
4.16 DV I/O SCHEMATIC DIAGRAM ...................................................		4-33
4.17 DV V OUT SCHEMATIC DIAGRAM .............................................		4-35
4.18 DV PRE/REC SCHEMATIC DIAGRAM ........................................		4-37
4.19 DV REG SCHEMATIC DIAGRAM ................................................		4-39
4.20 DV AUDIO AD/DA SCHEMATIC DIAGRAM .................................		4-40
4.21 MAIN(ON SCREEN) SCHEMATIC DIAGRAM .............................		4-41
4.22 REMOTE CONTROL SCHEMATIC DIAGRAM ............................		4-42
4.23 SWITCHING REGULATOR CIRCUIT BOARD .............................		4-43
4.24 MAIN CIRCUIT BOARD ................................................................		4-45
4.25 3D DIGITAL/2M CIRCUIT BOARD ...............................................		4-48
4.26 DEMODULATOR POWER SW, SW/DISPLAY AND JOG CIRCUIT BOARDS ...		4-49
4.27 TERMINAL CIRCUIT BOARD .......................................................		4-51
4.28 DV MAIN CIRCUIT BOARD ..........................................................		4-53
4.29 WAVEFORMS ...............................................................................		4-55
4.30 VOLTAGE CHARTS ......................................................................		4-57
4.31 FDP GRID ASSIGNMENT AND ANODE CONNECTION .................		4-59
4.32 CPU PIN FUNCTION ....................................................................		4-60
4.33 SYSTEM CONTROL BLOCK DIAGRAM (VHS) ...........................		4-61
4.34 VIDEO BLOCK DIAGRAM(VHS) ..................................................		4-63
4.35 AUDIO BLOCK DIAGRAM (VHS) .................................................		4-67
4.36 SYSTEM CONTROL BLOCK DIAGRAM (DV) .............................		4-69
4.37 VIDEO BLOCK DIAGRAM (DV) ...................................................		4-71
5. PARTS LIST		5-1
5.1 PACKING AND ACCESSORY ASSEMBLY <M1> ............................
5.2 FINAL ASSEMBLY <M2> ..................................................................		5-2
5.3 MECHANISM ASSEMBLY (VHS) <M3> ...........................................		5-4
5.4 MECHANISM ASSEMBLY (DV) <M4> ..............................................		5-6
5.5 ELECTRICAL PARTS LIST ...............................................................		5-8
SW REGULATOR BOARD ASSEMBLY <01> ........................................		5-8
MAIN BOARD ASSEMBLY <03> ............................................................		5-9
3D DIGITAL/2M BOARD ASSEMBLY <05> ..........................................		5-17
TERMINAL BOARD ASSEMBLY <06> .................................................		5-19
AUDIO CONTROL HEAD BOARD ASSEMBLY <12> ..........................		5-20
DEMOD BOARD ASSEMBLY <14> ......................................................		5-20
POWER SW BOARD ASSEMBLY <27> ...............................................		5-21
SW/DISPLAY BOARD ASSEMBLY <28> .............................................		5-21
DV MAIN BOARD ASSEMBLY <50>	....................................................	5-22
LOADING MOTOR BOARD ASSEMBLY <55> .....................................		5-27
JOG BOARD ASSEMBLY <85> ............................................................		5-27

The following table lists the differing points between models SR-VS30EK and SR-VS30E.

	MODEL	SR-VS30EK	SR-VS30E
	ITEM
	POWER PLUG	3PIN(CLASS II)	CEE(CLASSII)
	VIDEO SYSTEM	PAL/NTSC ON PAL TV	PAL/MESECAM(MANUAL)/NTSC ON PAL TV
	BROADCASTING STANDARD	I	B/G, D/K
	STEREO DECODER	NICAM	NICAM/A2
	VCR PLUS+	VIDEO PLUS+ DELUXE	SHOWVIEW DELUXE
	LANGUAGE[INITIAL](ON SCREEN DISPLAY)	ENGLISH	10 LANGUAGE [E]

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 HOW TO REMOVE THE MAJOR PARTS

1.1.1 Introduction

This set is a double-deck video recorder integrating a Mini DV deck and a VHS deck. Its internal structure is divided into three sections that include the power supply, VHS and DV sections. Therefore, the removal of major parts will also be described under three separate sections as listed below.

1.COMMON section

2.VHS section

3.DV section

<TOP VIEW >

1. COMMON section				2. VHS section

3. DV section

Fig. 1-1-1

1.2 HOW TO READ THE DISASSEMBLY AND ASSEMBLY

	Step/	Part name	Fig. No.	Point	Note
	Loc No.
	1	Top cover, Bracket	COM1	4(S1), 3(S2), 2(L1), (L2)	—
				2(S3)
	2	Front panel	COM2	8(L3),	<Note
		assembly		CN7507(WR1),	1,2,3,4>
				CN3011(WR2)
	§	§	§	§	§
	(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

1.3 DISCONNECTION OF CONNECTORS (WIRES)

FPC

CONNECTOR

Fig. 1-3-1

FPC

CONNECTOR

Fig. 1-3-3

FPC

CONNECTOR

Fig. 1-3-5

FPC

CONNECTOR

Fig. 1-3-2

FPC

CONNECTOR

Fig. 1-3-4

1-1

1.4 HOW TO REMOVE THE MAJOR PARTS <COM section>

1.4.1 Disassembly flow chart

This flowchart shows the disassembly procedure for the exterior parts and electrical parts.

Basically, reverse this procedure when assembling them.

[1]	Top cover, Bracket
[2]	Front panel assembly

SW/Display board assembly, Power SW board assembly,

[3]Jog board assembly

[4]SW REG board assembly

[5]Foot assembly, Foot(center), Foot(rear), Bottom cover

1.4.2 Disassembly/assembly method <COM section>

	Step/	Part name	Fig. No.	Point	Note
	Loc No.
		Top cover	COM1	4(S1a), 2(S1b)	—
	[1] Bracket			2(S1c)
	[2]	Front panel	COM2	8(L2a),	<Note 2a,
		assembly		CN7510(WR2a),	2b, 2c,2d>
				CN3011(WR2b)

[3]SW/Display board assembly COM3 8(S3a)

	Power SW board assembly		2(S3b)	—
	Jog board assembly		2(S3c),Knob(Jog)
[4]	SW REG board	COM4	4(S4a),	<Note 2a>
	assembly		CN5322(WR4a),
			CN5321(WR4b),
			CN5325(WR4c),
			CN5324(WR4d),
			CN5323(WR4e)
[5]	Lug wire	COM5	(S5a)	<Note 5a>
	Foot assembly		5(L5a)
	Foot(center)
	Foot(rear)
	Bottom cover		4(L5b), 9(L5c),
			2(L5d)

<Note 2a>

•When attaching the FPC, be sure to connect it in the correct orientation.

•When attaching the FPC take care that it is not caught.

•When removing or attaching the WIRE/FPC, refer to "1.7 CONNECTION"(page 1-8) at same time.

<Note 2b>

When attaching the Front panel assembly, make sure that the door openers of both decks (DV, VHS) are in the down position.

<Note 2c>

When attaching the Front panel assembly, be careful not to damage the DV terminals.

<Note 2d>

When attaching (WR2a) and (WR2b), insert supporting long side to connector in the Main board assembly.

<Note 3a>

When attaching Jog board assembly, attach it before SW/ Display board assembly.

<Note 5a>

When removing Bottom cover, remove it after VHS section parts and DV section parts.

1-2

[1] Top cover

(S1b)

(S1a)

(S1b)

(S1c)

(S1a)

[1] Bracket

Fig. COM1

<Note 2b>
DV SIDE
(L2a)	CN3011
	(L2a)	<Note 2b>
		VHS SIDE
	(WR2b)
		CN7510
	<Note 2a, 2b>
DV terminals		(WR2a)
<Note 2c>		<Note 2a, 2d>
(L2a)		(L2a)
	[2] Front panel assembly

Fig. COM2

		[2] Front panel assembly
		Knob (Jog)
	[3]
		Jog board assembly
		<Note 3a>
		Power SW board
		assembly
(S3a)		SW/Display board
		assembly
(S3a)	(S3c)
	(S3c)
(S3a)	(S3a)
	(S3a)
	(S3a)
	(S3a)
	(S3a)	(S3b)
		(S3b)

Fig. COM3

[4] SW.REG board assy
(S4a)
(S4a)	(S4a)
(S4a)	CN5325 (WR4c)
CN5324	CN5322	<Note 2a>
(WR4d)	CN5321	(WR4a)
		<Note 2a>
<Note 2a>
CN5323		(WR4b)
(WR4e)		<Note 2a>
<Note 2a>

Fig. COM4

	(S5a)
[5] Lug wire	(L5a)
		(L5d)
			(L5a)
	(L5a)
(L5a)	(L5a)
	(L5b)	(L5c)
(L5b)
		(L5b)
(L5c)			[5] Bottom cover
[5] Foot assy
		(L5c)
[5] Foot(center)
	[5] Foot(rear)	[5] Foot assy	[5] Foot(rear)

Fig. COM5

1-3

1.5 HOW TO REMOVE THE MAJOR PARTS <VHS section>

1.5.1 Disassembly flow chart

This flowchart shows the disassembly procedure for the exterior parts and electrical parts.

Basically, reverse this procedure when assembling them. However, it is required to remove the common section parts as far as [1] “Top cover Bracket” and [2] “Front panel assembly” in advance. (See section 1.4.)

[1]	Drum assembly
[2]	Mechanism assembly
[3]	Main board assembly

1.5.2 DIsassembly/assembly method <VHS section>

	Step/	Part name	Fig. No.	Point	Note
	Loc No.
	[1]	Drum assembly	V1	CN1(WR6a),	<Note 1a,1b>
				CON1(WR6b),
				(S6a), (S6b), (S6c)
		(Inertia plate)		4(L6a)
		(Roller arm assy)		(P6a), (L6b)
	[2]	Mechanism	V2	(S7a), (S7b), (S7c),	<Note 1b,
		assembly		(S7d), 2(L7a),	2a, 2b, 2c>
				CN1(WR7a)
	[3]	Main board	V3	(S8a), 6(L8a),	<Note 1b>
		assembly		CN701(WR8a),
				CN2601(WR8b),
				CN3014(WR8c)

<Note 1a>

When attaching or removing the FPC, take care not to disconnect any of the wires.

<Note 1b>

•When attaching the FPC, be sure to connect it in the correct orientation.

•When removing or attaching the WIRE/FPC, refer to "1.7 CONNECTION"(page 1-8) at same time.

<Note 2a>

When it is required to remove the screws ((S7a), (S7b), (S7c) and (S7d)) retaining the Mechanism assembly, please refer to the “Procedures for Lowering the Cassette holder assembly”(See on page 1-4).

<Note 2b>

•When reattaching the Mechanism assembly to the Main board assembly, take care not to damage the sensors on the Main board assembly (D3001: LED, Q3002: Start sensor, Q3003: End sensor, S3002: S cassette switch).

•When reattaching the Mechanism assembly to the Main board assembly, CN2 of LOADING MOTOR BOARD should not be floated.

<Note 2c>

•When removing the Mechanism assembly only, unhook the two spacers connecting it with the Main board assembly with pliers from the back side of the Main board assembly first, and then remove the Mechanism assembly.

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 unscrewed when removing the Mechanism assembly.

Fig. 2

Fig. 1

Fig. 3

Turn the loading motor pulley in the direction as indicated by Fig.2. As both A and B levers are lodged twice, push the levers in the direction as indicated by Fig.3 to release them. When pushing the levers, do it in the order of A , B , B , A . When the holder has been lowered, turn the pulley until the cassette holder is securely in place without allowing any up/ down movement.

Procedures for Lowering the Cassette holder assembly

Note: When installing the Drum assembly, secure the screws (S6a to S6c) in the order of a, b, c.

Inertia plate

(S6a) (S6c)

(WR6b) (L6a) <Note 1b>

CON1

(P6a)

	(S6b)	(WR6a)
		<Note 1a,1b>
	(L6b)
		Cleaner assy

Roller arm assy

[1]

Drum (L6c) assembly

Not used

CN1

Fig. V1

1-4

Note:

Make a crease on the position where the dotted line is not exceeded.

(WR7a)

A/C head base

[2]	(S7d)
Mechanism
assembly

(S7b) <Note 2a>

Q3003

D3001

(L7a)

spacer Q3003 <Note 2c> End sensor

<Note 2b>

	Note:
	When installing the
	Mechanism assembly,			(L8a)
	secure the screws		CN2601
	(S7a to S7b) in the		CN701	(S8a)
	order of a, b.			(L8a)
			CN3014
	(WR7a)
	<Note 1b>
		CN2	(WR8c)	[3] Main board
		<Note 2b>	<Note 1b>
	CN2		(WR8b)	assembly
			<Note 1b>
		(S7c)	(WR8a)
			<Note 1b>
	(S7a)	D3001
	<Note 2a>	LED
		<Note 2b>
	CN1
		(L7a)
	Q3002	spacer	Fig. V3
		<Note 2c>
	S3002

Q3002

Start sensor

<Note 2b>

S3002

S cassette switch <Note 2b>

Fig. V2

1-5

1.6 HOW TO REMOVE THE MAJOR PARTS <DV section>

1.6.1 Disassembly flow chart

This flowchart shows the disassembly procedure for the exterior parts and electrical parts.

Basically, reverse this procedure when assembling them. However, it is required to remove the common section parts as far as [1] “Top cover, Bracket” and [2] “Front panel assembly” in advance. (See section 1.5.)

[1]	Base(DV)

[2]DV Mechanisam assembly, DV Main board assembly

[3]DV MDA board assembly

1.6.2 Disassembly/assembly method <DV section>

	Step/	Part name	Fig. No.	Point	Note
	Loc No.
	[1]	Base(DV)	D1	3(S9a), (S9b)	<Note 1a>
	[2]	DV Mechanism	D2	3(S10a),	<Note 2a,
		assembly		CN1502(WR10a),	2b, 2c>
				CN4001(WR10b)
				CN1501(WR10c)
		DV Main board		4(S10b)
		assembly
	[3]	DV MDA board	D3	2(S11a), 2(S11b),	<Note 2c>
		assembly		2(L11a),
				CN5503(WR11a),
				CN5504(WR11b),
				CN5502(WR11c),
				CN5505(WR11d),
				CN5507(WR11e),
				Bracket(MDA)

<Note 1a>

With due regard to operational considerations, remove the parts located on the Base(DV) (i.e. DV Mechanism assembly, DV MDA board assembly etc.) together before removing the major parts.

<Note 2a>

Take care not to scratch or damage the drum assembly by the cleaner assembly when performing work.

<Note 2b>

Take care not to damage the board assembly when detaching parts.

<Note 2c>

•When attaching the FPC, be sure to connect it in the correct orientation.

•When removing or attaching the WIRE/FPC, refer to "1.7 CONNECTION"(page 1-8) at same time.

(S9b)

(S9a)

(S9a)

(S9a)

Lug wire

(S9b) Lug wire

Base(DV)

Bottom chassis

When reattaching (S9b), attach in the order of the above figure.

Fig. D1

	[2] Mechanism		(S10a) (WR10c)
		(S10a)	<Note 2c>
	assembly(DV)		(WR10b)
	<Note 2a>
			<Note 2c>
	[1] Base(DV)		(WR10a)
			<Note 2c>

[2] DV Main	(S10b)
board assembly
<Note 2b>		CN4001
		CN4001
	CN1502	CN1501
	(S10b)

CN1502	(S10b)

Fig. D2

1-6

5

(S11a)

[3] DV MDA board assembly

NOTE: When removing, remove in order of a number

1 to 5 .

5

(S11a)

3 (S11b)

CN5504

3

Bracket(DV)

(S11b)
		(WR11d) 1	4
		<Note 2c>	(WR11a)
	CN5502	CN5505	<Note 2c>
		CN5503	CN5507
2
(WR11b)			1
<Note 2c>			(WR11e)
3			<Note 2c>
(L11a)	1
	(WR11c)
	<Note 2c>

Fig. D3

1-7

1.7 CONNECTION

16

FAN

5

Treat the wire so as not to come to fan.

bend

right side

6		7
11			bend
bend
		CN5323
	CN1001	CN3701
right side	right side		CN1501
		18
CN5501		14	CN5506

back side

DV DRUM

CN1502

B

17

CN901

right side

CN502

right side

TERMINAL PWB

Hold wire by stylepin.

3

ST2

12		right side
		15
right side		make a crease
	4
8			right side
		CN3001
CN1		right side
A		10
13	9

DRUM

back side

right side

bend

A/C HEAD

Should be confirmed that wire not touch to IC of STATOR PWB ASS'Y.

2	1

back side

back side	C
To SW/Display board	To SW/Display board
CN7001	CN7191

NOTE) Wire the wires as shown in a figure.

NOTE) Wire the wires as shown in a figure.

NOTE) Put the surplus

wire into this space. NOTE) Twist a wire one time.

"D"

CN5502 CN5505 CN5503

	CN5507
22	20
21	19

NOTE) Wire the wires as shown in a figure.

Fig. 1-7-1

1-8

DETAIL"A"

DETAIL"B"

DETAIL"C"

Absorb the looseness of the wire in the B part.

	DV MAIN	DV MECHA
	PWB
B	DRUM
		CN1502
CN1		BOTTOM
		CHASSIS
MAIN PWB		electrode side
	Push into the BOTTOM CHASSIS
	and treat the wire according
	to the following figure.
WIRING for MECHA ADJ	FINAL WIRING

FRONT PANEL

BOTTOM CHASSIS

CN7510 MAIN PWB

CN3011

Absorb the looseness of the wire according to the following figure.

AC/ HEAD	AC/ HEAD		After MECHA adjustment,
	(WR7a)		Treat the wire (WR7a) according
			to the following figure.
			Make a crease on the position where
right side		right side	the dotted line is not exceeded.

DETAIL "D"

DV MDA BOARD ASSEMBLY

CN5504

23 BRACKET(DV)

Fig. 1-7-2

Fig				Connection						Pin	Type
	Symbol										(FPC/
No.		Connected point					Connected point			No.
											WIRE)
1	WR2a	MAIN		CN7510			SW/DISPLAY		CN7191	10	FPC
2	WR2b	MAIN		CN3011			SW/DISPLAY		CN7001	20	FPC
3	WR4a	MAIN		CN7508			SW/REG		CN5322	10	FPC
4	WR4b	MAIN		CN7509			SW/REG		CN5321	12	FPC
5	WR4c	SW/REG		CN5325			FAN MOTOR		-	2	WIRE
6	WR4d	SW/REG		CN5324			DV MDA		CN5501	5	WIRE
7	WR4e	SW/REG		CN5323			DV MAIN		CN1001	8	FPC
8	WR6a	MAIN		CN1			UPPER DRUM		-	13	FPC
9	WR6b	DRUM MOTOR		CON1			MAIN		CN3001	5	FPC
10	WR7a	A/C HEAD		CN1			MAIN		CN2001	7	FPC
11	WR8a	MAIN		CN701			DV MAIN		CN3501	14	FPC
12	WR8b	MAIN		CN2601			DV MAIN		CN3701	8	FPC
13	WR8c	MAIN		CN3014			DV MAIN		CN1503	4	FPC
14	WR10c	DV MAIN		CN1501			DV MDA		CN5506	20	FPC
15	-	MAIN		CN7506			TERMINAL		CN502	15	FPC
16	-	MAIN		CN7507			TERMINAL		CN901	9	FPC
17	WR10a	SENSOR(DV)		-			DV MAIN		CN1502	15	FPC
18	WR10b	PRE/REC(DRUM)(DV)		-			DV MAIN		CN4001	8	FPC
19	WR11a	DRUM MOTOR(DV)		-			DV MDA		CN5503	11	FPC
20	WR11e	HOUSING MOTOR(DV)		-			DV MDA		CN5507	4	WIRE
21	WR11d	ROTARY ENCODER(DV)		-			DV MDA		CN5505	4	WIRE
22	WR11c	LOADING MOTOR(DV)		-			DV MDA		CN5502	2	WIRE
23	WR11b	CAPSTAN MOTOR(DV)		-			DV MDA		CN5504	18	FPC

Table 1-7-1

1-9

1.8 SERVICE POSITIONS

The servicing locations for use in troubleshooting or servicing of the set are provided separately for the VHS and DV.

I SERVICE POSITIONS <VHS SIDE>

II SERVICE POSITIONS <DV FOIL SIDE>

III SERVICE POSITIONS <DV COMPONENT SIDE>

1.8.1 Requirement PATCH CORDS

The following PATCH CORDS is required.

	Board to Board	Wire	Used
1	PTU94022-10	QUQ212-1040CG	I
2	PTU94022-20	QUQ112-2040CG	I
3	YTU94074-15	QUQ105-1540AA	III

Table 1-8-1

1.8.2 Service position <VHS SIDE>

<Removal>

(1)Remove the top cover and bracket.

(2)Remove the front panel assembly.

(3)Remove the Main board assembly together with the Mechanism assembly.

< Installation >

(1)Stand up the Bottom chassis assembly so that the DV/ Regulator side is in the lower position.

Note: • Take care to the fall of the Fan.

(2)Connect FPCs and wires accordingly in Fig. 1-8-1.

Point: • Take care that the FPCs and wires are not subjected to stress in this positioning.

(3)Connect the PATCH CORDS to the two FPCs of the Front panel assembly, then connect the CORDS to the CN7510/CN3011.

For the PATCH CORD is required, see Table 1-8-1.

	CN5322
	CN5321	CN1503
		CN3701
CN2601		CN3501
CN701		1
CN7508
CN7509	CN3011
	CN3014	2
	CN7510	CN7191
Main board assembly		CN7001
		Front panel assembly
	Fig. 1-8-1

1.8.3 Service position <DV FOIL SIDE>

<Removal>

(1)Remove the top cover and bracket.

(2)Remove the front panel assembly.

(3)Remove the Base(DV) together with DV Mechanism assembly and DV Main board assembly.

Note:

• Take care not to damage the parts during operating.

< Installation >

(1)Place an insulation sheet on the SW/Reg board assembly.

(2)Place a DV section(Base(DV) with DV Mechanism assembly and DV Main board assembly) on the insulation sheet.(refer to Fig. 1-8-2)

Note:

• Confirm that FPCs and wires are not unconnected from the connectors.

	DV Mechanism
	assembly	CN2601
	Insulation Sheet
		CN701
	DV Main board
	assembly
	CN1502	CN3014
	CN3501
	Base(DV)	CN3011
	CN3701	CN7510
	CN1503

Front panel assembly	CN7001	CN7191

Fig. 1-8-2

1-10

1.8.4 Service position <DV COMPONENT SIDE>

<Removal>

(1)Remove the top cover and bracket.

(2)Remove the front panel assembly.

(3)Remove the Base(DV) together with DV Mechanism assembly and DV Main board assembly.

(4)Remove the DV Mechanism assembly and DV Main board assembly from Base(DV).

Note:

• Take care not to damage the parts during operating.

< Installation >

(1)Place a DV Main board assembly on the Bottom chassis.

(2)Place an insulation sheet on the rear side of DV Main board assembly.

(3)Place a DV Mechanism assembly on the insulation sheet.

Note:

• Confirm that DV Mechanism assembly be getting on on the insulation sheet completely.

(4)Connect PATCH CORD to the connector(CN1502) and connect FPC from DV Mechanism assembly.(refer to Fig. 1-8-3)

(5)Connect other FPCs and wires to the connector that corresponds each.(refer to "1-7 CONNECTION")

For the PATCH CORD is required, see Table 1-8-1.

Note:

• Confirm that FPCs and wires are not unconnected from the connectors(especially CN4001).

DV Mechanism
assembly
Insulation Sheet
3		CN1502
		CN3011
CN4001		CN7510
DV Main board
assembly
Front panel assembly	CN7001	CN7191
Fig. 1-8-3

1.9Jig RCU mode

This unit uses the following two modes for receiving remote control codes.

1)	User RCU mode : Ordinary mode for use by the user.
2)	Jig RCU mode : Mode for use in production and serv-
	icing.

When using the Jig RCU, it is required to set the VCR to the Jig RCU mode (the mode in which codes from the Jig RCU can be received). As both of the above two modes are stored in the EEPROM, it is required to set the VCR back to the User RCU mode each time that an adjustment is made or to check that the necessary operations have been completed. These modes can be set by the operations described below.

1.9.1Setting the Jig RCU mode

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

(2)Press and hold the “REC” and “PAUSE” buttons on the VCR simultaneously, while plugging the power cord plug into the power outlet.

When the VCR is set to the Jig RCU mode, the symbols ( “ : ” ) in the time display of the FDP are turned off.

1.9.2 Setting the User RCU mode

(1)Turn off the power.

(2)Press the “REC” and “PAUSE” buttons of the VCR simultaneously. Alternatively, transmit the code “80” from the Jig RCU.

1-11

1.10 MECHANISM SERVICE MODE

This model has a unique function to enter the mechanism into every operation mode without loading of any cassette tape. This function is called the “MECHANISM SERVICE MODE”.

1.10.1 How to set the "MECHANISM SERVICE MODE"

(1)Disconnect VCR from AC.

(2)Connect TPGND and TP7001 (TEST) on the Display board assembly with a jump wire.

(3)Connect VCR to AC.

(4)Press the POWER button.

(5)With lock levers A B on the left and right of the Cassette holder assembly pulled toward the front, slide the holder in the same direction as the cassette insertion direction. (For the positions of lock levers A B , refer to the “Procedures for Lowering the Cassette holder assembly” on page 1-4 of 1.5 HOW TO REMOVE THE MAJOR PARTS <VHS section>

(6)The cassette holder lowers and, when the loading has completed, the mechanism enters the desired mode.

					3D DIGITAL/2M BOARD ASSEMBLY
					TERMINAL BOARD ASSEMBLY			DEMOD BOARD
								ASSEMBLY
				CN901	right side	CN502	right side
		FAN
					TP701			VR1401
					D YV IN
					VR701
		bend			D YV IN
				ST2
SW/REG BOARD								right side
ASSEMBLY
					right side			make a crease
		right side
					MAIN BOARD					TP111
					ASSEMBLY					D.FF
		CP5322								TP4001
									right side
	CP5321							CN3001		CTL. P
					CN1		CP3004			TP106
							right side			PB. FM
			CP5325							TP2253
bend		bend						CP4001		A. PB.FM
right side		CN5323			DRUM				CP3003
	CN1001	CN3701			back side			right side
DV MAIN BOARD	right side		CN2001	bend
			(JIG CONN.)					A/C HEAD
ASSEMBLY			CN1501
CN5501			CN5506
		back side
	DV DRUM
	DV MECHANISM
	ASSEMBLY
		CN1502			VHS MECHANISM ASSEMBLY
								back side
DV MDA BOARD	POWER SW BOARD				back side			JOG BOARD
	ASSEMBLY							ASSEMBLY
ASSEMBLY
		FW7001			CN7001			CN7191
								TPGND
				SW/DISPLAY BOARD ASSEMBLY				TP7001
								TEST
FW7002
				<FRONT PANEL ASSEMBLY>
					Fig. 1-10-1

1-12

1.11 Emergency display function

This unit has a function for storing the history of the past two emergencies (EMG) and displaying them on each FDP (or OSD). With the status of the VCR and mechanism at the moment an emergency occurred can also be confirmed.

FDP display model [FDP display]

	0 :	00		: 00	Normal display
					EMG content display
	E: * * : * *
					(E:Latest:Previous)
*1:		*2		: 34	EMG detail information <1>
					EMG detail information <2>
*5:		*6		: *7

FDP (7segment LED) display model [FDP display]

0: 00 Normal display

E: ** EMG content display (Latest)

1:** EMG content display (Previous)

2:*1 EMG detail information <1> [Deck operation mode]

3:*2 EMG detail information <1> [Mechanism operation mode]

4:34 EMG detail information <1>

[Mechanism sensor information and Mechanism mode position] 5: *5 EMG detail information <2>

[Type of the cassette tape in use <1>] 6: *6 EMG detail information <2>

[Winding position of the cassette tape in use] 7: *7 EMG detail information <2>

[Type of the cassette tape in use <2> (Winding area)]

OSD display model [OSD display]

EMG							EMG content display
							(E:Latest:Previous)
E : * *		: * *					EMG detail information <1>
*1:	*2	: 34
*5:	*6	: *7					EMG detail information <2>

Notes:

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

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

•When using the Jig RCU, 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. 1-11a Jig RCU [PTU94023B]

1.11.1 Displaying the EMG information

(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 to reset the display.

Notes:

•For the OSD display model, all EMG information are showed by transmitting first code from the Jig RCU.

•For the EMG content, see “1.7.3 EMG content description”.

•For the EMG detail information <1> , see “1.7.4 EMG detail information <1> ”.

•For the EMG detail information <2> , see “1.7.5 EMG detail information <2>”.

1.11.2 Clearing the EMG history

(1)Display the EMG history.

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

(3)Reset the EMG display.

(EMG-02e)

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1.11.3 EMG content description

Note: EMG contents “E08/E09” are for the model with Dynamic Drum (DD).

FDP	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]		reading error during mode transition.
	is identified and the power is turned off.	3.	Power is not supplied to the loading MDA.
E02: Unloading 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 unloading end due to the encoder posi-
	for more than 4 seconds in the unloading direction, [E:02]		tion reading error during mode transition.
	is identified and the power is turned off.	3.	Power is not supplied to the loading MDA.
E03: Take Up Reel	When the take-up reel pulse has not been generated for	1.	The take-up reel pulse is not generated in the FWD transport modes (PLAY/
Pulse EMG	more than 4 seconds in the capstan rotating mode, [E:03]		FWD SEARCH/FF, etc.) because;
	is identified, the pinch rollers are turned off and stopped,		1) The idler gear is not meshed with the take-up reel gear;
	and the power is turned off. However, the reel EMG is		2) The idler gear is meshed with the take-up reel gear, but incapable of wind-
	not detected in STILL/SLOW modes.		ing due to too large mechanical load (abnormal tension);
			3) The take-up reel sensor does not output the FG pulse.
		2.	The supply reel pulse is not generated in the REV transport modes (REV
			SEARCH/REW, etc.) because;
			1) The idler gear is not meshed with the supply reel gear.
			2) The idler gear is meshed with the supply reel gear, but incapable of wind-
			ing due to too large a mechanical load (abnormal tension);
			3) The supply reel sensor does not output the FG pulse.
		3.	Power is not supplied to the reel sensors.
E04: Drum FG	When the drum FG pulse has not been input for more	1.	The drum could not start or the drum rotation has stopped due to too large
EMG	than 3 seconds in the drum rotating mode, [E:04] is iden-		a load on the tape, because;
	tified, the pinch rollers are turned off and stopped, and		1) The tape tension is abnormally high;
	the power is turned off.	2.	2) The tape is damaged or a foreign object (grease, etc.) adheres to the tape.
			The drum FG pulse did not reach the System controller CPU because;
			1) The signal circuit is disconnected in the middle;
			2) The FG pulse generator (hall device) of the drum is faulty.
		3.	The drum control voltage (DRUM CTL V) is not supplied to the MDA.
		4.	Power is not supplied to the drum MDA.
E05: Cassette Eject	When the eject operation does not complete in 3 sec-	1.	The cassette cannot be ejected due to a failure in the drive mechanism of
EMG	onds after the start, [E:05] is identified, the pinch rollers	2.	the housing.
	are turned off and stopped, and the power is turned off.		When the housing load increases during ejection, the loading motor is
	When the cassette insertion operation does not complete		stopped because of lack of headroom in its drive torque.
	in 3 seconds after the start, the cassette is ejected. In		Housing load increasing factors: Temperature environment (low tempera-
	addition, when the operation does not complete within		ture, etc.), mechanism wear or failure.
	3 seconds after the start, [E:05] is also identified and the	3.	The sensor/switch for detecting the end of ejection are not functioning normally.
	power is turned off immediately.	4.	The loading motor drive voltage is lower than specified or power is not sup-
			plied to the motor (MDA).
		5.	When the user attempted to eject a cassette, a foreign object (or perhaps
			the user's hand) was caught in the opening of the housing.
E06: Capstan FG	When the capstan FG pulse has not been generated for	1.	The capstan could not start or the capstan rotation has stopped due to too
EMG	more than 1 second in the capstan rotating mode, [E:06]		large a load on the tape, because;
	is identified, the pinch rollers are turned off and stopped,		1) The tape tension is abnormally high (mechanical lock);
	and the power is turned off.However, the capstan EMG		2) The tape is damaged or a foreign object (grease, etc.) is adhered to the
	is not detected in STILL/SLOW/FF/REW modes.	2.	tape (occurrence of tape entangling, etc.).
			The capstan FG pulse did not reach the System controller CPU because;
			1) The signal circuit is disconnected in the middle;
			2) The FG pulse generator (MR device) of the capstans is faulty.
		3.	The capstan control voltage (CAPSTAN CTL V) is not supplied to the MDA.
		4.	Power is not supplied to the capstan MDA.
E07: SW Power	When short-circuiting of the SW power supply with GND	1.	The SW 5 V power supply circuit is shorted with GND.
Short-Circuit	has lasted for 0.5 second or more, [E:07] is identified,	2.	The SW 12 V power supply circuit is shorted with GND.
EMG	all the motors are stopped and the power is turned off.
E08: DD Initialized	When DD tilting does not complete in 4 seconds, [E:08]	1.	The absolute value sensor is defective. (The soldered parts have separated.)
(Absolute	is identified, the tilt motor is stopped and the power is	2.	The pull-up resistor at the absolute sensor output is defective. (The soldered parts
Position	turned off.		have separated.)
Sensor)		3.	Contact failure or soldering failure of the pins of the connector (board-to-board) to the
EMG		4.	absolute value sensor.
			The absolute value sensor data is not sent to the System Controller CPU.
	When the DD FG pulse is not generated within 2.5 sec-	1. The FG sensor is defective. (The soldered parts have separated.)
E09: DD FG EMG	onds, [E:09] is identified, the tilt motor is stopped and	2.	The pull-up resistor at the FG sensor output is defective. (The soldered parts have
	the power is turned off.	3.	separated.)
			Contact failure or soldering failure of the pins of the connector (board-to-board) to the FG sensor.
		4.	The power to the sensor is not supplied. (Connection failure/soldering failure)
		5.	The FG pulse is not sent to the System Controller CPU.
		6.	The tilt motor is defective. (The soldered parts have separated.)
		7.	The drive power to the tilt motor is not supplied. (Connection failure/soldering failure)
		8.	The tilt motor drive MDA - IC is defective.
		9.	Auto-recovery of the DD tilting cannot take place due to overrun.
E0A:Supply Reel	When the supply reel pulse has not been generated for	1.	The supply reel pulse is not generated in the FWD transport mode (PLAY/
Pulse EMG	more than 10 seconds in the capstan rotating mode,		FWD SEARCH/FF, etc.) because;
	[E:0A] is identified and the cassette is ejected (but the		1) PLAY/FWD or SEARCH/FF is started while the tape in the inserted cas-
	power is not turned off). However, note that the reel EMG		sette is cut in the middle;
	is not detected in the SLOW/STILL mode.		2) A mechanical factor caused tape slack inside and outside the supply
			reel side of the cassette shell. In this case, the supply reel will not rotate
			until the tape slack is removed by the FWD transport, so the pulse is not
			generated until then;
			3) The FG pulse output from the supply reel sensor is absent.
		2.	The take-up reel pulse is not generated in the REV transport mode (REV
			SEARCH/REW, etc.).
			1) REV SEARCH/REW is started when the tape in the inserted cassette
			has been cut in the middle;
			2) A mechanical factor caused tape slack inside and outside the take-up
			reel side of the cassette shell. In this case, the supply reel will not rotate
			until the tape slack is removed by the REV transport, so the pulse will
			not be generated until that time;
			3) The FG pulse output from the take-up reel sensor is absent.
		3.	The power to a reel sensor is not supplied.
EC1 or EU1:	Presupposing the presence of the control pulse output in the PLAY mode, when the value obtained by mixing the two V.FM output
	channels (without regard to the A.FM output) has remained below a certain threshold level for more than 10 seconds, [E:C1] or [E:U1]
Head clog warning	is identified and recorded in the emergency history. During the period in which a head clog is detected, the FDP and OSD repeat the
	“3-second warning display” and “7-second noise picture display” alternately.
	EMG code : “E:C1” or “E:U1” / FDP : “U:01” / OSD : “Try cleaning tape.” or “Use cleaning cassette.”
	The head clog warning is reset when the above-mentioned threshold has been exceeded for more than 2 seconds or the mode is
	changed to another mode than PLAY.

1-14	Table 1-11-3a

1.11.4 EMG detail information <1>

The status (electrical operation mode) of the VCR and the status (mechanism operation mode/sensor information) of the mechanism in the latest EMG can be confirmed based on the figure in EMG detail information <1> .

[FDP/OSD display]

*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

Note:

• For EMG detailed information <1>, the content of the code that is shown on the FDP (or OSD) differs depending on the parts number of the system control microprocessor (IC3001) of the VCR. The system control microprocessor parts number starts with two letters, refer these to the corresponding table.

* 1 : Deck operation mode

[Common table of MN*, HD* and M3*]

Display			Deck operation mode
MN*/M3*	HD*
00	-		Mechanism being initialized
01	00		STOP with pinch roller pressure off (or tape present with P.OFF)
02	01		STOP with pinch roller pressure on
03	-		POWER OFF as a result of EMG
04	04		PLAY
0C	0E		REC
10	11		Cassette ejected

2022 FF

21- Tape fully loaded, START sensor ON, short FF

22- Cassette identification FWD SEARCH before transition to FF (SP x7-speed)

24	26		FWD SEARCH (variable speed) including x2-speed
2C	2E		INSERT REC
40	43		REW

42- Cassette identification REV SEARCH before transition to REW (SP x7-speed)

44	47 REV SEARCH (variable speed)
4C	4C		AUDIO DUB
6C	6E		INSERT REC (VIDEO + AUDIO)

8484 FWD STILL / SLOW

8585 REV STILL / SLOW

8C	8F		REC PAUSE
8D	-		Back spacing
8E	-		Forward spacing (FWD transport mode with BEST function)
AC	AF		INSERT REC PAUSE
AD	-		INSERT REC back spacing
CC	CD		AUDIO DUB PAUSE
CD	-		AUDIO DUB back spacing
EC	EF		INSERT REC (VIDEO + AUDIO) PAUSE
ED	-		INSERT REC (VIDEO + AUDIO) back spacing

* 2 : Mechanism operation mode [Common table of MN* and M3*]

Display			Mechanism operation mode
MN*	M3*
00	00		Command standby (Status without executing command)
02	02		POWER OFF by EMG occurrence
04	04		Moving to the adjacent position in the LOAD direction
06	06		Moving to the adjacent position in the UNLOAD direction

0808 Cassette ejection being executed / Cassette housing ejection being executed

-0A Mode transition to STOP with cassette ejection end

0A	0C		Cassette insertion being executed
0C	0E		Tape being loaded
0E	10		Tape being unloaded
10	12		Mode transition to STOP with pinch roller compression ON
12	14		Mode transition to STOP with pinch roller compression OFF

1416 Mode transition to STOP with pinch roller compression OFF as a result of POWER OFF

1618 Mode transition to STOP with pinch roller compression ON as a result of POWER ON

18	1A Mode transition to PLAY
1A	1C		Mode transition to FWD SEARCH
1C	1E		Mode transition to REC
1E	20		Mode transition to FWD STILL / SLOW
20	22		Mode transition to REV STILL / SLOW
22	24		Mode transition to REV SEARCH
24	26		Mode transition from FF / REW to STOP
26	28		Mode transition to FF
28	2A		Mode transition to REW
2A	2C		4 sec. of REV as a result of END sensor going ON during loading
2C	2E		Short FF / REV as a result of END sensor going ON during unloading
2E	30		Mechanism position being corrected due to overrun
80	80		Mechanism in initial position (Dummy command)

[Table of HD*]

Display		Mechanism operation mode
00		STOP with pinch roller pressure off
01		STOP with pinch roller pressure on
02		U/L STOP (or tape being loaded)
04		PLAY
05		PLAY (x1-speed playback using JOG)
0E		REC
11		Cassette ejected
22		FF
26		FWD SEARCH (variable speed) including x2-speed
2E		INSERT REC
43		REW
47		REV SEARCH
4C		AUDIO DUB
6E		INSERT REC (VIDEO + AUDIO)

84FWD STILL/SLOW

85REV STILL/SLOW 8F REC PAUSE

AF		INSERT REC PAUSE
C7		REV SEARCH (x1-speed reverse playback using JOG)
CD		AUDIO DUB PAUSE
EF		INSERT REC (VIDEO + AUDIO) PAUSE
F0		Mechanism being initialized
F1		POWER OFF as a result of EMG
F2		Cassette being inserted
F3		Cassette being ejected
F4		Transition from STOP with pinch roller pressure on to STOP with pinch
		roller pressure off
F5		Transition from STOP with pinch roller pressure on to PLAY
F6		Transition from STOP with pinch roller pressure on to REC
F7		Cassette type detection SEARCH before FF/REW is being executed
F8		Tape being unloaded
F9		Transition from STOP with pinch roller pressure off to STOP with pinch
		roller pressure on
FA		Transition from STOP with pinch roller pressure off to FF/REW
FB		Transition from STOP with pinch roller pressure off to REC.P (T.REC,etc.)
FC		Transition from STOP with pinch roller pressure off to cassette type de-
		tection SEARCH
FD		Short REV being executed after END sensor on during unloading
FE		Tension loosening being executed after tape loading (STOP with pinch
		roller pressure on)

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