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Instruction Manual
SERVICE MANUAL
3
2004
YF031
GR-DX77US,GR-DX97US
For disassembling and assembling of MECHANISM ASSEMBLY, refer to the SERVICE MANUAL No.86700(MECHANISM ASSEMBLY).
1
PRECAUTIONS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-3
2
SPECIFIC SERVICE INSTRUCTIONS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-5
3
DISASSEMBLY . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-6
4
ADJUSTMENT . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-15
5
TROUBLE SHOOTING . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-18
DIGITAL VIDEO CAMERA
TABLE OF CONTENTS
COPYRIGHT © 2004 VICTOR COMPANY OF JAPAN, LIMITED
GR-DX77US[M4D3S7], GR-DX97US[M4D3M7]
No.YF031
2004/3
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Summary of Contents for JVC GR-DX77US
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Page 1: Table Of Contents
YF031 2004 GR-DX77US,GR-DX97US GR-DX77US[M4D3S7], GR-DX97US[M4D3M7] For disassembling and assembling of MECHANISM ASSEMBLY, refer to the SERVICE MANUAL No.86700(MECHANISM ASSEMBLY). TABLE OF CONTENTS PRECAUTIONS ............... 1-3 SPECIFIC SERVICE INSTRUCTIONS . - Page 2 SPECIFICATION 1-2 (No.YF031)
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Page 3: Precautions
SECTION 1 PRECAUTIONS SAFTY PRECAUTIONS Prior to shipment from the factory, JVC products are strictly emission. Consequently, when servicing these products, inspected to conform with the recognized product safety and replace the cathode ray tubes and other parts with only the electrical codes of the countries in which they are to be specified parts. - Page 4 1.1.2 Safety Check after Servicing Examine the area surrounding the repaired location for damage (4) Leakage current test or deterioration. Observe that screws, parts and wires have been Confirm specified or lower leakage current between earth returned to original positions, Afterwards, perform the following ground/power cord plug prongs and externally exposed tests and confirm the specified values in order to verify accessible parts (RF terminals, antenna terminals, video...
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Page 5: Specific Service Instructions
SECTION 2 SPECIFIC SERVICE INSTRUCTIONS The following table indicate main different points between models GR-DX77US and GR-DX97US MODEL GR-DX77US GR-DX97US LCD MONITOR 2.5INCH 3.0INCH MEMORY CARD YES(Option) YES(MMC8MB) (No.YF031)1-5... -
Page 6: Disassembly
SECTION 3 DISASSEMBLY BEFORE ASSEMBLY AND DISASSEMBLY • 3.1.1 Precautions Torque driver • Be sure to disconnect the power supply unit prior to mounting Be sure to use to fastening the mechanism and exterior parts and soldering of parts. because those parts must strictly be controlled for tightening •... -
Page 7: Disassembly Procedure
3.2.2 ASSEMBLY/DISASSEMBLY OF CABINET PARTS AND ELECTRICAL PARTS Disassembly procedure NOTE13: STEP Fig. For the disassembly procedure of the OP BLOCK ASSEM- PART NAME POINT NOTE BLY/CCD BOARD ASSEMBLY, see "3.2.5 DISASSEMBLY CASSETTE COVER ASSY Fig.C1 GRIP BELT ASSY,2(S1),HOOK(F) NOTE1 of [13] OP BLOCK ASSEMBLY/CCD BOARD ASSEMBLY"... - Page 8 (S1) (S1) NOTE1 (S1) (S1) (S1) COVER(ADJ) HOOK(F) NOTE1 (S1) (S1) Fig.C1 NOTE4a (S3) (S3) (S4a) (S4a) (S4a) (S4c) COVER(DV) (S4a) ASSEMBLY NOTE4b (S4a) (S2a) (S4a) JACK COVER ASSEMBLY (S2b) NOTE4b (S4b) Fig.C2 Fig.C3 1-8 (No.YF031)
- Page 9 (S5) (S5) NOTE5 (S5) (S5) (S5) COVER(JIG CON) : 0.078N m(0.8kgf Fig.C4 NOTE6 BKT(MIC) ASSEMBLY (S6) (S7) NOTE7 (S7) (S6) (S6) (S6) (S6) Fig.C5 (No.YF031)1-9...
- Page 10 [10] (S10) [11] CN11e CN11b CN11c (S11) (S11) CN11a CN10 (S11) NOTE8 CN11d (S8) (S8) Fig.C6 Fig.C8 [12] NOTE12a, b (S9) (S9) BKT(TOP)ASSEMBLY (S12) (S12) (S12) (S9) (S12) CN9a (S13b) CN9b (S13b) NOTE9 [13] NOTE13 (S9) (S9) c 50 (S9) (S13a) (S9) (S9)
- Page 11 (S14) SHIELD COVER (S14) L14a CN14c NOTE14 SPACER(A) CN14a [14] CN14b L14b : 0.069N m(0.7kgf Fig.10 [16] NOTE16 BKT(PRE-REC) CN16d (S16a) CN16c (S16b) CN16b CN16a (S16b) (S16b) BKT(MECHA)ASSEMBLY [15] (S15) (S15) : 0.069N m(0.7kgf : 0.078N m(0.8kgf Fig.C11 (No.YF031)1-11...
- Page 12 3.2.3 DISASSEMBLY of [9] MONITOR ASSEMBLY CAUTIONS (3) While removing the five screws (6-10) in numerical order (1) During the procedure, be careful in handling the LCD and disengaging the two hooks (L9a and L9b) in alpha- MODULE,etc., especially not to damage or soil the mon- betical order, remove the MONITOR COVER ASSY.
- Page 13 3.2.4 DISASSMBLY of [12] VF ASSEMBLY Disassembly (7) Remove the FPC attached to the GUIDE (OUTER) little (1) Remove the EYE CUP. by little so that the FPC moves easily, and remove the COVER (VF) from the GUIDE (OUTER). NOTE12a: After the EYE CUP is removed, be careful of handling NOTE12c: the EYE CUP since the SHEET (LENS) is removed.
- Page 14 3.2.5 DISASSEMBLY of [13] OP BLOCK ASSEMBLY/CCD BOARD ASSEMBLY CAUTIONS NOTE13c: (1) Be careful in handling the CCD image sensor, OP LPF, Since the OP LPF is inside the LOW PASS FILTER and lens etc., especially not to damage or soil their sur- HOLDER and the OP LPF is attached to the LOW face.
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Page 15: Adjustment
SECTION 4 ADJUSTMENT PREPARATION 4.1.3 TOOLS REQUIRED FOR ADJUSTMENT 4.1.1 Precaution Torque Driver Tweezers YTU94088 YTU94088-003 P-895 Camera system and deck system of this model are specially adjusted by using PC. However, if parts such as the following are replaced, an adjustment is required. - Page 16 • Guide driver (Hexagonal) JIG CONNECTOR CABLE CONNECTION To be used to turn the guide roller to adjustment of the linarity • Remove one screw (1), and remove the COVER (JIG CON). of playback envelope. • As the figure shows, insert JIG CONNECTOR CABLE in JIG •...
- Page 17 Jig connector diagrams MECHANISM COMPATIBILITY ADJUSTMENT 4.3.1 Tape pattern adjustment JIG CONNECTOR CABLE (YTU93106C) NOTE: Prior to the adjustment, remove the COVER (ADJ). MAIN CN105 (1) Play back the compatibility adjustment tape. NOTE : (2) While triggering the HID1, observe the waveform of EXMOD_1 The JIG CONNECTOR BOARD uses MMOD_0...
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Page 18: Trouble Shooting
SECTION 5 TROUBLE SHOOTING SERVICE NOTE 1-18 (No.YF031) - Page 19 TAKE OUT CASSETTE TAPE The following procedure is a method for taking out the cassette tape in case the cassette tape cannot be ejected due to an elec- (DC3V) trical failure. The following procedure is a simplified method; therefore, for more reliable operation, it is recommended that you CASSETTE COVER should remove exterior parts so that you can take out the tape without excessive force.
- Page 20 EMERGENCY DISPLAY Example (in case of the error number E01): Whenever some abnormal signal is input to the syscon CPU, an error number (E01, as an example) is displayed on the LCD monitor or (in the electronic view finder).In every error status, UNIT IN REMOVE AND such the message as shown below alter nately appear over and...
- Page 21 JVC SERVICE & ENGINEERING COMPANY OF AMERICA DIVISION OF JVC AMERICAS CORP. www.jvcservice.com(US Only) JVC CANADA INC. Head office : 21 Finchdene Square Scarborough, Ontario M1X 1A7 (416)293-1311 (No.YF031) Printed in Japan...