JVC Super VHS GR-SXM740U Service Manual

Compact vhs camcorder

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JVC SERVICE & ENGINEERING COMPANY OF AMERICA

DIVISION OF JVC AMERICAS CORP.

Head office

1700 Valley Road Wayne, New Jersey 07470-9976

East Coast

10 New Maple Avenue Pine Brook, New Jersey 07058-9641

705 Enterprise Street Aurora, Illinois 60504-8149

Midwest

5665 Corporate Avenue Cypress, California 90630-0024

West Coast

1500 Lakes Parkway Lawrenceville, Georgia 30043-5857

Atlanta

2969 Mapunapuna Place Honolulu, Hawaii 96819-2040

Hawaii

JVC CANADA INC.

Head office

21 Finchdene Square Scarborough, Ontario M1X 1A7

Montreal

16800 Rte Trans-Canadienne, Kirkland, Quebec H9H 5G7

Vancouver

13040 Worster Court Richmond, B.C. V6V 2B3

(973)317-5000

(973)396-1000

(630)851-7855

(714)229-8011

(770)339-2582

(808)833-5828

(416)293-1311

(514)871-1311

(604)270-1311

S40895-04

Printed in Japan

SERVICE MANUAL

COMPACT VHS CAMCORDER

GR-SXM340U,SXM740U

SPECIFICATIONS

(The specifications shown pertain specifically to the model GR-SXM745)

Camcorder

General

Format

: S-VHS/VHS NTSC standard

Power source

: DC 11 V

(Using AC Adapter)

DC 6 V

(Using battery pack)

Power consumption

Viewfinder on

: 4.0 W

LCD monitor on

: 4.5 W

Video light

: 3.0 W

Signal system

: NTSC-type

Video recording system

Luminance

: FM recording

Color

: Converted sub-carrier direct recording

Conforms to VHS standard

Cassette

cassette

Tape speed

: 33.35 mm/sec. (1-5/16 ips)

: 11.12 mm/sec. (7/16 ips)

Recording time (max.)

: 40 minutes

: 120 minutes

(with TC-40 cassette)

Operating

temperature

: 0°C to 40°C (32°F to 104°F)

Operating humidity : 35% to 80%

Storage temperature : –20°C to 50°C (–4°F to 122°F)

Weight

: Approx. 930 g (2.1 lbs)

Dimensions

: 200 mm x 112 mm x 118 mm

(W x H x D)

(7-7/8" x 4-7/16" x 4-11/16")

(with the LCD monitor closed and with the viewfinder

fully tilted downward)

Pickup

: 1/4" format CCD

Lens

: F1.6, f = 3.9 mm to 62.4 mm,

16:1 power zoom lens with auto iris and macro control,

filter diameter 40.5 mm

Viewfinder

: Electronic viewfinder with 0.5" black/white CRT

White balance

adjustment

: Auto/Manual adjustment

This service manual is printed on 100% recycled paper.

LCD monitor

: 3.5" diagonally measured, LCD panel/TFT active

matrix system

Speaker

: Monaural

Connectors

: 1 V (p-p), 75 Ω unbalanced, analog output (via

Video

Video output connector)

Audio

: 300 mV (rms), 1 kΩ analog output

(via Audio output connector)

Digital

: ø3.5 mm, 4-pole, mini-head jack

: Y : 1 V (p-p), 75 Ω, analog output

S-Video

C : 0.29 V (p-p), 75 Ω, analog output

AC Adapter

Power requirement

U.S.A. and Canada : AC 120 V`, 60 Hz

Other countries

: AC 110 V to 240 V`,

50 Hz/60 Hz

Output

: DC 11 V

, 1 A

Optional Accessories

• Battery Packs BN-V12U, BN-V20U, BN-V400U

• A/V (Audio/Video) Cable

• Compact S-VHS (

) Cassettes ST-C-40/30/20

• Compact VHS (

) Cassettes TC-40/30/20

• Active Carrying Bag CB-V7U

Some accessories are not available in some areas. Please consult your

nearest JVC dealer for details on accessories and their availability.

Specifications shown are for SP mode unless otherwise indicated. E & O.E. Design

and specifications subject to change without notice.

No. 86656

December 2001

Table of Contents

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Summary of Contents for JVC Super VHS GR-SXM740U

Page 1 : F1.6, f = 3.9 mm to 62.4 mm, Some accessories are not available in some areas. Please consult your 16:1 power zoom lens with auto iris and macro control, nearest JVC dealer for details on accessories and their availability. filter diameter 40.5 mm Viewfinder : Electronic viewfinder with 0.5"...
Page 2: Table Of Contents
TABLE OF CONTENTS Section Title Page Section Title Page Important Safety Precautions 4. CHARTS AND DIAGRAMS NOTES OF SCHEMATIC DIAGRAM .......... 4-1 INSTRUCTIONS CIRCUIT BOARD NOTES ............4-2 4.1 BOARD INTERCONNECTIONS .......... 4-3 1. DISASSEMBLY 1.1 SERVICE CAUTIONS ............1-1 4.2 CPU SCHEMATIC DIAGRAM ..........
Page 3: Important Safety Precautions
Important Safety Precautions Prior to shipment from the factory, JVC products are strictly inspected to conform with the recognized product safety and electrical codes of the countries in which they are to be sold. However, in order to maintain such compliance, it is equally important to implement the following precautions when a set is being serviced.
Page 4: Safety Check After Servicing
• Safety Check after Servicing Examine the area surrounding the repaired location for damage or deterioration. Observe that screws, parts and wires have been returned to original positions, Afterwards, perform the following tests and confirm the specified values in order to verify compliance with safety standards.
Page 5: Section 1 Disassembly
SECTION 1 DISASSEMBLY 1.1 SERVICE CAUTIONS 1.1.3 Connection of the wires 1.1.1 Precautions 1. Pull the connector structure upward to release the clamp when removing or inserting the flat wire cable. 1. Before disassembling/re-assembling the set as well as soldering parts, make sure to disconnect the power ca- ble.
Page 6: Tools Required For Adjustments
1.2 TOOLS REQUIRED FOR ADJUSTMENTS Alignment tape Alignment tape Service support system PC cable (for SP interchangeability) (for N. SP PB Y/C level) YTU94057-56 QAM0099-002 MHP-C MHV-2C Cleaning cloth Torque driver YTU94088 KSMM-01 YTU94088-003 Conn. ring INF adjustment lens Table 1-2-1 YTU92001-111 YTU92001B Gray Scale Chart...
Page 7: Disassembly/Assembly Of Cabinet Parts
1,2. Alignment tape 1.3 DISASSEMBLY/ASSEMBLY OF CABINET PARTS To be used for check and adjustment of interchange- 1.3.1 Disassembly flow chart ability of the mechanism. This flowchart indicates the disassembly step for the cabi- (Video: Color bar signal, Audio: Non-signal) net parts and board assembly in order to gain access to item(s) to be serviced.
Page 8: Disassembly Method
1.3.2 Disassembly method REMOVAL STEP *UNLOCK/RELEASE/ Fig. /LOC PART UNPLUG/UNCLAMP/ UNSOLDER CASETTE COVER 2(S1) ASSEMBLY UPPER CASE 2(S2), 2(L2) LOWER CASE 9(S3), (L3a), (L3b) ASSEMBLY *CN3a,CN3b,COVER(JACK) (Incl. E.VF ASSEMBLY) E.VF ASSEMBLY 3(S4) TOP OPERATION 2(S5),(L5a),(L5b),2(L5c), UNIT *CN5a REAR UNIT 3(S6),(L6a),(L6b),*CN6a FRONT COVER 2(S7a),(S7b),(L7a),(L7b), ASSEMBLY...
Page 9 COVER (JACK) Fig. C3 Fig. C4 Fig. C5...
Page 10 Fig. C6 WITHOUT DC LIGHT MODEL WITHT DC LIGHT MODEL Fig. C7...
Page 11 Fig. C8 ∗ BRACKET (UPPER) ASSY UPPER CASE ASSY MONITOR COVER ∗ ∗ ∗ ∗ ∗∗ ∗∗ ∗ ∗ ∗ ∗ : 0.147 N m (1.5 kgf • • ∗∗ : 0.098 N m (1.0 kgf • • ∗ : 0.098 N m (1.0 kgf •...
Page 12 2.5”-type LCD MONITOR CASE SHIELD CASE LCD MODULE DIFF SHEET BACK LIGHT MONITOR <07> ∗ T.HINGE ASSY ∗ : 0.098 N m (1.0 kgf • • Fig. C11a 3.5”-type LCD MONITOR CASE SHIELD CASE LCD MODULE LCD FRAME(3.5) BACK LIGHT MONITOR <07>...
Page 13 REINFORCED SURFACE PUSH SWITCH ∗ REINFORCED SURFACE COVER (HINGE U) ∗ REINFORCED SURFACE HINGE HINGE NOTE PLATE (SW) ∗∗ COVER (HINGE L) ∗ : 0.049 N m (0.5 kgf • • ∗∗ : 0.078 N m (0.8 kgf • • Fig.
Page 14: Disassembly/Assembly Of Camera Section And Deck Section
1.4 DISASSEMBLY/ASSEMBLY OF CAMERA SECTION Reference Notes: AND DECK SECTION <NOTE 1> Destination of connectors 1.4.1 Flowchart of disassembly Note : Two kinds of double-arrows in connection tables The following flowchart shows the disassembly of the cam- respectively show kinds of connector/wires. era section and deck section.
Page 15 SHIELD CASE (MAIN) ∗ ∗ ∗ : 0.108 N m (1.1 kgf • • Fig. D2 Fig. D4 ∗ ∗ ∗ ∗ CUSHION (OP) ∗ : 0.216 N m (2.2 kgf • • Fig. D3 Fig. D5 1-11...
Page 16: Replacement Of Ccd Image Sensor
1.5 REPLACEMENT OF CCD IMAGE SENSOR Part Name Orientation Notes: CCD image sensor Mark is on the right viewed as indi- cated by the arrow a . • Pay the most careful attention to the transparent glass and optical LPF of the CCD image sensor so a not the soil and Spacer rubber IC side is horizontal.
Page 17: Take Out Cassette Tape
1.6 TAKE OUT CASSETTE TAPE 5. For taking in the slack of the tape, run the mechanism In the event that the set enters the emergency mode as it to the EJECT position as the front lid of the cassette is is loaded with a cassette tape and the cassette tape can- left open, and turn the take-up gear in the forward di- not be ejected with the EJECT button, manually, take it out...
Page 18: Emergency Display
1.7 EMERGENCY DISPLAY Example (in case of the error number E01): Whenever some abnormal signal is input to the mechacon CPU, an error number (E01, as an exam-ple) is displayed in the electronic view finder. In every error status, such the message as shown below al- UNIT IN REMOVE AND ternately appear over and over.
Page 19 Note: 2) As the “DEMO MODE” is executed, the camcoder enters the DEMONSTRATION mode after the ti- tle screen of “TITLE CALL” and “FUTURE” appear in this order. <Flow chart> 1. TITLE CALL and FUTURE ∫ 2. EASY PC CONNECTION ∫...
Page 20: Service Note
1.9 SERVICE NOTE 1-16...
Page 21: Section 2 Mechanism Adjustment
SECTION 2 MECHANISM ADJUSTMENT 2.1 SERVICE CAUTIONS 2.1.3 Required adjustment tools 2.1.1 Precautions Alignment tape Alignment tape 1. Before disassembling/re-assembling the set as well as MHP-LC MHP-C soldering parts, make sure to disconnect the power ca- ble. 2. When disconnecting/connecting connectors, pay enough attention to wiring not to damage it.
Page 22: Disassembly/Assembly Of Mechanism Parts
2.2 DISASSEMBLY/ASSEMBLY OF MECHANISM PARTS This procedure starts with the condition that the cabinet parts and deck parts. Also, all the following procedures for adjust- ment and parts replacement should be performed in STOP mode. When reassembling, perform the step(s) in the reverse order.
Page 23 <TOP VIEW> Fig. 2-2-1 TOP VIEW <BOTTOM VIEW> Note: When reinstalling the cassette housing to the set, pay careful attention to the switch not to damage it. Fig. 2-2-2 BOTTOM VIEW...
Page 24 (W1a) (S3a) (W3b) (S3b) (P3) (P1) (W3a) (S1) (W3a) (W1a) (W3a) (W1a) (W1b) (S3a) (S3a) (S3a) (S3a) Fig. M1 Fig. M3 (W2) (S4a) (S4b) (W4) (S4b) (W2) (S2) (W2) Fig. M2 Fig. M4...
Page 25 (S5a) (S5a) (S7) (S5a) (S5c) (S5b) Fig. M5 Fig. M7 (S6b) (S8) (S8) Catcher (S6d) (W8a) (S6d) (S6d) (S6d) (W8b) (W8b) (S6c) (S6c) (S6a) Fig. M6 Fig. M8...
Page 26: Checkup And Adjustment Of Mechanism Phase
2.3 CHECKUP AND ADJUSTMENT OF MECHANISM PHASE Note: Pay careful attention to the installing order and phase of mechanism parts of the loading system. Align the two holes of the Loading ring assembly to those of the deck. Align the hole of the Loading gear (T) assembly to that of the deck.
Page 27: Tape Transport Adjustment
2.4 TAPE TRANSPORT ADJUSTMENT 8. When the FM waveform breaks in the level varying proc- ess, subtly adjust the height of guide rollers at every In most cases the deck section is in need electrical ad- breaking point so that the waveform varies as flat as pos- justment, it results from replacement of worm mechanical sible.
Page 28: A/C Head Height & Azimuth
11. Through the above steps, confirm that there occur no 2.4.3 A/C head height & azimuth wrinkling and damage in the tape around the pinch roller 1. Connect the jig connector cable to CN25 on the MAIN and TU guide pole whenever the deck is in operation of board.
Page 29: Phase Of Control Head (X Value)
2.4.4 Phase of control head (X value) 2.5 REMARKS 1. Connect the jig connector cable to CN25 on the MAIN 2.5.1 Cleaning board. 1. For cleaning of the upper drum (particularly video 2. Playback the SP stairstep signal of the alignment tape heads), use fine-woven cotton cloth or Kimwipe with al- and observe signal at V.TP FM with external trigger from cohol soaks through.
Page 30: Jig Connector Cable Connection
2.6 JIG CONNECTOR CABLE CONNECTION Remove the cover (JIG). Jig connector cable CN25 Cover(JIG) Extention connector For supplying the power through the coupler by removing NOTE: the cover (for jig), use this extension connector double for connecting the jig connector cable. JIG CONNECTOR COMMUNICATION CABLE to 10 pin...
Page 31: Section 3 Electrical Adjustment
2 PROM on to new board. Then adjustment are not required. And if parts such as the following need replacement, spe- (LY20701) cial computerized adjustment are required (Refer to sec. 3.1.1- 4). Please contact to JVC Service for detaile informa- Bottom case assy Serial No. label tion.
Page 32: Electronic Viewfinder (E. Vf) Adjustment
3.2 ELECTRONIC VIEWFINDER (E. VF) ADJUSTMENT 1) Put the deflection yoke to the most inner side of CRT neck first. Then fix the stopper temporary. Notes: 2) Adjust the tilt of picture on the E. VF screen by tilting • Unless otherwise specified, all measurement points and the deflection yoke.
Page 33: Section 4 Charts And Diagrams
SECTION 4 CHARTS AND DIAGRAMS 4) Indication on schematic diagram NOTES OF SCHEMATIC DIAGRAM Voltage Indications for REC and PB mode on the sche- matic diagram are as shown below. Safety precautions The Components identified by the symbol critical for safety. For continued safety, replace safety critical components only with manufacturer's recom- REC mode mended parts.
Page 34: Circuit Board Notes
6. Signal path Symbols CIRCUIT BOARD NOTES The arrows indicate the signal path as follows. 1. Foil and Component sides 1) Foil side (B side) : Playback signal path Parts on the foil side seen from foil face (pattern face) are indicated.
Page 35: Board Interconnections
∗ BOARD INTERCONNECTIONS NOTE ) : The number of patch cords LCD(MONITOR) MODULE OPEN C_VF_PANEL are indicated by interconnected. E. VF 1 2 3 4 5 6 7 OP BLOCK (Page 4-31) (Page 4-28) CN7602 CN7702 MONITOR (Page 4-29) C-VF C-VF BL ∗...
Page 36: Cpu Schematic Diagram
NOTES : For the destination of each signal and further line connections that are cut off from CPU SCHEMATIC DIAGRAM this diagram , refer to "4.1 BOARD INTERCONNECTIONS". When ordering parts , be sure to order according to the Part Number indicated in the Parts List. 0 1 MAIN (CPU) TO REG TO A/C HEAD...
Page 37: M.mda Schematic Diagram
NOTES : For the destination of each signal and further line connections that are cut off from M.MDA SCHEMATIC DIAGRAM this diagram , refer to "4.1 BOARD INTERCONNECTIONS". When ordering parts , be sure to order according to the Part Number indicated in the Parts List. 0 1 MAIN (M.MDA) IC1602 TO REG...
Page 38: Vtr Asp Schematic Diagram
NOTES : For the destination of each signal and further line connections that are cut off from VTR ASP SCHEMATIC DIAGRAM this diagram , refer to "4.1 BOARD INTERCONNECTIONS". When ordering parts , be sure to order according to the Part Number indicated in the Parts List. JIG_CONN.
Page 39: Dsp Schematic Diagram
DSP SCHEMATIC DIAGRAM NOTES : For the destination of each signal and further line connections that are cut off from this diagram , refer to "4.1 BOARD INTERCONNECTIONS". When ordering parts , be sure to order according to the Part Number indicated in the Parts List. TO LCD/CVF, BW/CVF 0 1 MAIN (DSP)
Page 40: F/Z/I/Mda Schematic Diagram
F/Z/I/MDA SCHEMATIC DIAGRAM NOTES : For the destination of each signal and further line connections that are cut off from this diagram , refer to "4.1 BOARD INTERCONNECTIONS". When ordering parts , be sure to order according to the Part Number indicated in the Parts List. 0 1 MAIN (F/Z/I/MDA) IRIS_O/C TO CPU...
Page 41: Out Schematic Diagram
V OUT SCHEMATIC DIAGRAM NOTES : For the destination of each signal and further line connections that are cut off from this diagram , refer to "4.1 BOARD INTERCONNECTIONS". When ordering parts , be sure to order according to the Part Number indicated in the Parts List. L4701 TO REG 0 1 MAIN (V OUT)
Page 42: Tg/Cds Schematic Diagram
TG/CDS SCHEMATIC DIAGRAM NOTES : For the destination of each signal and further line connections that are cut off from this diagram , refer to "4.1 BOARD INTERCONNECTIONS". When ordering parts , be sure to order according to the Part Number indicated in the Parts List. TO CCD CN5301 0 1 MAIN (TG/CDS)
Page 43: Reg Schematic Diagram
C6622 NTSC UDZS8.2B-X Light 0.47 100k SSM3K02F 10µ/16 ∗ ∗ ∗ ∗ ∗ ∗ ∗ ∗ ∗ QGA1201C2-02X JVC WB VF ONLY MODEL ∗ ∗ ∗ ∗ ∗ UDZS7.5B-X ∗ ∗ ∗ ∗ ∗ ∗ ∗ ∗ ∗ Light JVC WB VF and 2.5LCD...
Page 44: Lcd/Cvf Schematic Diagram
∗ C7064 /6.3 ∗ ∗ C7051 R7114 R7118 R7122 0.01 ∗ C7065 C7066 ∗ y10244001a_rev0 NOTE : The parts with marked ( ) is not used. # : EXCHANGE PARTS LIST JVC MODEL PANA MODEL ∗ CN25 QGB0506L1-30X 4-21 4-22...
Page 45: Bw/Cvf Schematic Diagram
4.11 BW/CVF SCHEMATIC DIAGRAM NOTES : For the destination of each signal and further line connections that are cut off from this diagram , refer to "4.1 BOARD INTERCONNECTIONS". When ordering parts , be sure to order according to the Part Number indicated in the Parts List. TO DSP BWBLEVEL OPEN...
Page 46: Jack Schematic Diagram
S OUT 0 1 MAIN (JACK) ∗ NOTE : The parts with marked ( ) is not used. y30154001a_rev0 Exchange Parts List JVC PC JVC NON PC model PANA PC NON S JVC model JVC model PANA JVC model model...
Page 47: Speaker Schematic Diagram
4.13 SPEAKER SCHEMATIC DIAGRAM NOTES : For the destination of each signal and further line connections that are cut off from this diagram , refer to "4.1 BOARD INTERCONNECTIONS". When ordering parts , be sure to order according to the Part Number indicated in the Parts List. 0 1 MAIN (SPEAKER) C2404 R2401...
Page 48: Ccd Schematic Diagram
4.14 CCD SCHEMATIC DIAGRAM NOTES : For the destination of each signal and further line connections that are cut off from this diagram , refer to "4.1 BOARD INTERCONNECTIONS". When ordering parts , be sure to order according to the Part Number indicated in the Parts List. IC5301 is incorporated in the CCD base assembly.
Page 49: Monitor Schematic Diagram
4.15 MONITOR SCHEMATIC DIAGRAM NOTES : For the destination of each signal and further line connections that are cut off from this diagram , refer to "4.1 BOARD INTERCONNECTIONS". When ordering parts , be sure to order according to the Part Number indicated in the Parts List. J7501 NCB21EK-273X C7502...
Page 50: Vf Schematic Diagram
4.16 E. VF SCHEMATIC DIAGRAM NOTES : For the destination of each signal and further line connections that are cut off from this diagram , refer to "4.1 BOARD INTERCONNECTIONS". When ordering parts , be sure to order according to the Part Number indicated in the Parts List. 6 0 E.
Page 51: Top Ope Unit, Zoom Unit, Rear Unit And Sensor Schematic Diagrams
4.17 TOP OPE UNIT, ZOOM UNIT, REAR UNIT AND SENSOR SCHEMATIC DIAGRAMS NOTES : For the destination of each signal and further line connections that are cut off from this diagram , refer to "4.1 BOARD INTERCONNECTIONS". The schematic diagram is only for reference. Avoid replacing individual parts. TOP OPE UNIT Replace the entire unit only.
Page 52: Main Circuit Board
4.18 MAIN CIRCUIT BOARD FOIL SIDE(B) 0 1 MAIN PWB YB10356-01-01 D5201 JP2002 C2001 L7301 C5229 L2003 R122 X102 R5217 C5230 D7301 JP2001 C7316 IC103 C5231 Q2001 C126 C7301 C7304 C7305 R7315 R5211 R7307 C5218 D101 R7327 R7305 R7308 R7303 R2004 Q7306 C7315...
Page 53 (1/2) COMPONENT PARTS LOCATION GUIDE <MAIN/YB10356-01-01> REF.NO. LOCATION REF.NO. LOCATION REF.NO. LOCATION REF.NO. LOCATION REF.NO. LOCATION REF.NO. LOCATION REF.NO. LOCATION CAPACITOR C2004 C4037 C5234 C7068 D6701 L6201 C2005 C4038 C5235 C7069 D6702 L6301 C103 C7301 D7301 L6302 C2021 C4039 C5236 C104 C2022 C4040...
Page 54 (2/2) COMPONENT PARTS LOCATION GUIDE <MAIN/YB10356-01-01> REF.NO. LOCATION REF.NO. LOCATION REF.NO. LOCATION REF.NO. LOCATION REF.NO. LOCATION REF.NO. LOCATION REF.NO. LOCATION Q7013 R163 R3507 R4505 R6610 R7312 TL1606 Q7015 R164 R3508 R4507 R6611 R7313 TL1607 Q7301 R165 R3901 R4508 R6612 R7315 TL1608 Q7303 R166...
Page 55 CAUTION: ATTENTION: FOR CONTINUED PROTECTION AGAINST POUR UNE PROTECTION PERMANENTE FIRE HAZARD ,REPLACE ONLY WITH SAME CONTRE LES RISQUE D'INCENDE, TYPE AND RATED FUSE(S). REMPLACER LES FUSIBLES PAR UN AUTRE DE MEME TYPE ET DE MEME TENSION. COMPONENT SIDE(A) 0 1 MAIN PWB YB10356-01-01 R7333 Q7311...
Page 56: Monitor Circuit Board
4.19 MONITOR CIRCUIT BOARD 0 7 MONITOR PWB 0 7 MONITOR PWB FOIL SIDE(B) COMPONENT SIDE(A) YB20913 YB20913 J7501 R7620 L7605 R7621 R7622 R7624 R7625 R7630 R7626 C7627 R7629 R7627 R7628 IC7603 L7601 C7620 C7602 R7642 C7619 C7601 C7626 T7501 R7636 Q7607 Q7605...
Page 57: Ccd Circuit Board
4.20 CCD CIRCUIT BOARD FOIL SIDE(B) 0 2 CCD PWB YB10356-01-01 IC5301 CL5301 COMPONENT SIDE(A) 0 2 CCD PWB YB10356-01-01 C5305 C5301 C5302 C5307 4-43...
Page 58: Vf Circuit Board
4.21 E. VF CIRCUIT BOARD FOIL SIDE(B) 6 0 E. VF PWB Q7003 R7023 R7029 R7019 VR7002 R7024 IC7001 C7013 R7025 R7021 R7016 Q7001 R7008 R7030 C7005 R7020 R7006 R7005 R7010 COMPONENT SIDE (A) 6 0 E. VF PWB L7002 VR7003 CN7002 5.5M...
Page 59: Waveforms
4.22 WAVEFORMS — VTR ASP — IC3501-21 IC3501-25 IC3501-19 IC3501-20 REC 0.1 Vp-p REC 0.57 Vp-p 24 mVp-p 0.24 Vp-p 2 mV/10 µsec/DIV 10 mV/10 µsec/DIV 1 mV/5 msec/DIV 20 mV/5 msec/DIV — DSP — IC4001-160 IC4001-161 IC4001-146 IC4001-147 REC/PB 0.28 Vp-p REC 0.52 Vp-p REC/PB 0.28 Vp-p REC 0.15 Vp-p...
Page 60: Voltage Charts
4.23 VOLTAGE CHARTS <M.MDA> <CPU> MODE MODE MODE MODE MODE PLAY PLAY PLAY PLAY PLAY PIN NO. PIN NO. PIN NO. PIN NO. PIN NO. IC101 IC103 IC1601 IC104 IC105 11.1 11.1 10.3 10.3 IC1801 Q101 11.1 11.1 11.1 11.1 10.3 10.3 Q102...
Page 61 MODE MODE MODE MODE MODE PLAY PLAY PLAY PLAY PLAY PIN NO. PIN NO. PIN NO. PIN NO. PIN NO. Q3501 1(E) 2(B) IC1602 3(C) 4(E) 5(B) 6(C) Q3502 1(E) Q1601 2(B) 3(C) 11.1 11.1 4(E) 5(B) 6(C) Q3505 <VTR ASP> MODE REC PLAY PIN NO.
Page 62 MODE MODE MODE MODE MODE PLAY PLAY PLAY PLAY PLAY PIN NO. PIN NO. PIN NO. PIN NO. PIN NO. IC4202 Q4251 Q4501 <V OUT> MODE PLAY PIN NO. IC4702 IC4501 IC4003 Q4701 Q4702 Q4001 <TG/CDS> IC4002 MODE REC PLAY PIN NO.
Page 63 <JACK> <CCD> <MONITOR> <E.VF> MODE MODE MODE MODE MODE MODE MODE MODE MODE MODE PLAY PLAY PLAY PLAY PLAY PIN NO. PIN NO. PIN NO. PIN NO. PIN NO. PIN NO. PIN NO. PIN NO. PIN NO. PIN NO. -7.8 14.9 11.1 11.1...
Page 64: Power System Block Diagram
4.24 POWER SYSTEM BLOCK DIAGRAM REAR UNIT MAIN REG SECTION NOTE) M. MDA SECTION ∗ DRM_PWR : For GR-SXM340U Q6401 ∗∗ L6002 ∗ ∗ DRM_PWR UNREG DRUM : For GR-SXM740U POWER JACK SECTION L6001 CAP_PWR F6001 CN28 DRM_CTL BATT_+ CAP_PWR REG_3.2V BATT_+ IC6001-6,39PIN...
Page 65: Cpu/Mda System Block Diagram
4.25 CPU/MDA SYSTEM BLOCK DIAGRAM MAIN (CPU) (M. MDA) IC101(CPU) IC1601 DRUM ROTOR POSI CENTER POSITION IC103 RTC CS (RTC) AL SI START UP TIMMING SWITCHING DRUM CLK CONTROL CONTROL SCLK AL CLK D COIL U OSCIN D COIL U FORWARD DRUM ON C1617...
Page 66: Camera And Y/C System Block Diagram
4.26 CAMERA AND Y/C SYSTEM BLOCK DIAGRAM 0 2 CCD MAIN V_PB_C IC5201 (TG/CDS) IC4001(DSP) (DSP) (CDS/AGC/AD) IC5301 Q5301 CN5301 CN22 OPTICAL CCD_OUT CDSIN γ BLKSH PROCESS BLOCK CONV CLAMP T. G SEPA γ DSP CONTROL BLKFB (3LINE) OFFSET CDS_CLK INTER FACE SERIAL INTERFACE ADCLK...
Page 67 JIG_CONN. CN25 J504 A/V OUT V_PB_C OPEN IC4001(DSP) J505 S OUT IC4701 DA_R (V OUT) DA_B IC4702 Y/C MIX TO LCD/CVF &6dB AMP (V OUT) Q3502 IC3501 DA_G CH2_S (VTR ASP) PB AMP TO BW/CVF CH2_F BWY0 BWYOUT Q3502 Q4701 Q4702 PB AMP CH4_S...
Page 68: Monitor System Block Diagram
4.27 MONITOR SYSTEM BLOCK DIAGRAM LCD MONITOR T7501 T7501 MONITOR FROM REG CN16 CN7601 F7501 F7501 REG_4.8V REG_4.8V NOTE) REG_4.8V ∗ : FOR 2.5inch MONITOR Q7503 Q7503 Q7501 Q7501 ∗ ∗ ∗∗ Q7504 Q7504 Q7502 Q7502 L7603 FROM CPU : FOR 3.5inch MONITOR LCD_CTL REG+12V CN7602...
Page 69: Safety Precaution
SECTION 5 PARTS LIST SAFETY PRECAUTION Parts identified by the symbol are critical for safety. Replace only with specified part numbers. REF No. PART No. PART NAME, DESCRIPTION - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - ******************************...
Page 70 FINAL ASSEMBLY <M2> ELECTRONIC VIEWFINDER <M4> MAIN <01> 140C 110B 140A MECHANISM <M3> 140D 140E 110A 140E 140D 110D 110C 140F 140B 140B 110E RATING 110F LABEL <02> 159A 101B 251C 135E 135H OPTICAL BLOCK 135E 251C SECTION 101D 135E 135K 135J 135C...
Page 71: Final Assembly
REF No. PART No. PART NAME, DESCRIPTION REF No. PART No. PART NAME, DESCRIPTION - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -...

Page 72: Mechanism Assembly
BEWARE OF BOGUS PARTS Parts that do not meet specifications may cause trouble in regard to safety MECHANISM ASSEMBLY <M3> and performance. We recommend that genuine JVC parts be used. 469A 469B 469B 439A 425 425 429A 406B 406A Classification Part No.

Page 73 REF No. PART No. PART NAME, DESCRIPTION REF No. PART No. PART NAME, DESCRIPTION - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -...
Page 74: Electronic Viewfinder Assembly
ELECTRONIC VIEWFINDER ASSEMBLY <M4> ELECTRONIC VIEWFINDER <60> 357A SERIAL NO. LABEL REF No. PART No. PART NAME, DESCRIPTION REF No. PART No. PART NAME, DESCRIPTION - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -...

Page 75: Monitor Assembly [Gr-Sxm340U]
MONITOR ASSEMBLY <M5> [GR-SXM340U] 502B 502A 502D 502D 502C 503B 503A MONITOR 501B <07> 503C 501D 501C 501A REF No. PART No. PART NAME, DESCRIPTION REF No. PART No. PART NAME, DESCRIPTION - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -...
Page 76: Monitor Assembly [Gr-Sxm740U]
MONITOR ASSEMBLY <M5> [GR-SXM740U] 502B 502A 502D 502D 502C 503B 503A MONITOR <07> 503C 501B 501A REF No. PART No. PART NAME, DESCRIPTION REF No. PART No. PART NAME, DESCRIPTION - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -...
Page 77: Electrical Parts List
ELECTRICAL PARTS LIST REF No. PART No. PART NAME, DESCRIPTION REF No. PART No. PART NAME, DESCRIPTION - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -...
Page 78 REF No. PART No. PART NAME, DESCRIPTION REF No. PART No. PART NAME, DESCRIPTION - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -...
Page 79 REF No. PART No. PART NAME, DESCRIPTION REF No. PART No. PART NAME, DESCRIPTION - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -...
Page 80 REF No. PART No. PART NAME, DESCRIPTION REF No. PART No. PART NAME, DESCRIPTION - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -...
Page 81 REF No. PART No. PART NAME, DESCRIPTION REF No. PART No. PART NAME, DESCRIPTION - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -...
Page 82 REF No. PART No. PART NAME, DESCRIPTION REF No. PART No. PART NAME, DESCRIPTION - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -...
Page 83: Ccd Board Assembly <02
REF No. PART No. PART NAME, DESCRIPTION REF No. PART No. PART NAME, DESCRIPTION - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -...
Page 84: Electronic Viewfinder Board Assembly <60
REF No. PART No. PART NAME, DESCRIPTION REF No. PART No. PART NAME, DESCRIPTION - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -...

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