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SERVICE MANUAL
1 S ERVICE MANUAL
Baby Movi
YF173
2007
E
GR-D750UC, GR-D750US,
GR-D770UC, GR-D770US,
GR-D771US, GR-D775US,
GR-D790US, GR-D796US
COPYRIGHT© 2007 Victor Company of Japan, Limited
For disassembling and assembling of MECHANISM ASSEMBLY, refer to the SERVICE MANUAL No.YF081(MECHANISM ASSEMBLY).
Lead free solder used in the board (material : Sn-Ag-Cu, melting point : 219 Centigrade)
1
PRECAUTIONS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-3
2
SPECIFIC SERVICE INSTRUCTIONS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-5
3
DISASSEMBLY . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-6
4
ADJUSTMENT . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-17
5
TROUBLE SHOOTING . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-21
DIGITAL VIDEO CAMERA
TABLE OF CONTENTS
COPYRIGHT© 2007 Victor Company of Japan, Limited
GR-D750UCM,GR-D750USM [M7D1S3]
GR-D770UCM,GR-D770USM
GR-D771USM,GR-D775USM
GR-D790USM,GR-D796USM [M7D1S5]
No.YF173
2007/1
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Summary of Contents for JVC GR-D750UC
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Page 1: Table Of Contents
SERVICE MANUAL DIGITAL VIDEO CAMERA YF173 2007 1 S ERVICE MANUAL Baby Movi GR-D750UC, GR-D750US, GR-D770UC, GR-D770US, GR-D771US, GR-D775US, GR-D790US, GR-D796US GR-D750UCM,GR-D750USM [M7D1S3] GR-D770UCM,GR-D770USM GR-D771USM,GR-D775USM GR-D790USM,GR-D796USM [M7D1S5] COPYRIGHT© 2007 Victor Company of Japan, Limited For disassembling and assembling of MECHANISM ASSEMBLY, refer to the SERVICE MANUAL No.YF081(MECHANISM ASSEMBLY). - Page 2 SPECIFICATION Camcorder For General Power supply DC 11 V (Using AC Adapter) DC 7.2 V (Using battery pack) Power consumption Approx. 2.2 W (2.3 W*) (LCD monitor off, viewfinder on) Approx. 2.7 W (2.8 W*) (LCD monitor on, viewfinder off) Approx.
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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 DIFFERENCE LIST The following table indicate main different points between models GR-D750UC, GR-D750US, GR-D770UC, GR-D770US, GR-D771US, GR-D775US, GR-D790US and GR-D796US. MODEL NAME GR-D750UC GR-D750US GR-D770UC USB TERMINAL /USB CABLE CD-ROM BN-VF808US BN-VF808US BN-VF808US BATTERY PACK... -
Page 6: Disassembly
SECTION 3 DISASSEMBLY BEFORE ASSEMBLY AND DISASSEMBLY 3.1.4 Tools required for disassembly and assembly 3.1.1 Precautions Torque driver Tweezers YTU94088 • Be sure to disconnect the power supply unit prior to mounting YTU94088-003 P-895 and soldering of parts. • Prior to removing a component part that needs to disconnect its connector(s) and its screw(s), first disconnect the wire(s) from the connector(s), and then remove the screw(s). - Page 7 3.2.2 ASSEMBLY/DISASSEMBLY OF CABINET PARTS AND ELECTRICAL PARTS Disassembly procedure NOTE8: STEP Fig. When attaching, be careful in wiring. PART NAME POINT NOTE NOET9: FA1-1 2(S1a),2(S1b),3(S1a),(S1d), UPPER ASSY NOTE1a,b,c,d During the procedure, be careful not to damage the EJECT FA1-2 L1a,b,c,d,e,f,g,3(L1h),L1j,CN1 SWITCH.
- Page 8 (S2) NOTE1a NOTE2 (S1b) (S1a) (S2) (S2) (S2) MONITOR ASSY (S1b) (S1b) (S1a) (S1a) (S2) NOTE1d LEVER Fig.FA1-1 Fig.FA2 <NOTE1b> FPC(BUTTON) FOOK WIRE (S3) FPC(JUNC) GUIDE (S3) NOTE1c Fig.FA1-2 Fig.FA3 1-8 (No.YF173)
- Page 9 < NOTE6a > NOTE4a (S4a) CN4a (S6) CN4b NOTE6b NOTE4b (S6) (S4b) (S6) <NOTE4a> CN4a (S6) CN4b NOTE6a Fig.FA4 Fig.FA6 <NOTE5b> (S5b) COVER(JACK) (S5a) (S5a) NOTE5b (S5a) (S7) (S5b) WIRE(MIC) (S5a) < NOTE8 > PLATE(MIC) (S5c) (S8) (S7) NOTE5a WIRE(MIC) (S5b) (S5b) Fig.FA5...
- Page 10 CN13e CN13c CN13d CN13b (S10) <MECHA SIDE> CN13e [10] CN13d (S9) CN13c NOTE9 (S13) CN13a EJECT SW CN13b (S9) [13] [10] (S9) (S9) Fig.FA8 Fig.FA10 NOTE11b [11] (S14) (S14) NOTE11a (S14) FRAME ASSY (S14) (S12) (S12) (S12) (S12) [12] [14] L12a CN11 L12b...
- Page 11 (S15) (S19) (S16) NOTE15 BKT(HINGE) NOTE16b [15] (S19) (S16) MONI SW (S19) (S19) L15b L15d CN15 (S19) L15e [16] CN16a BKT(GROUND) CN16b NOTE19a NOTE16a VID/MEM SW [19] KNOB(EJECT) NOTE16c NOTE19a NOTE16c NOTE19b L15a L15c L19a KNOB(SLIDE) NOTE19a <NOTE16c> L19b :0.078N m(0.8kgf cm) WIRE(SPEAKER) :0.059N m(0.6kgf cm) Fig.UA1...
- Page 12 3.2.3 DISASSEMBLY OF [4] VF ASSEMBLY Before disassembly NOTE4c: As the VF ASSY has complicated structure, do not disassem- After attaching the LENS ASSY, rotate the LE- ble if not needed. VER(VF) counterclockwise to check the smooth slid- When assembling, be careful to prevent dust or any foreign ing operation of the LENS ASSY.
- Page 13 CASE(VF) VF BOARD ASSY LCD SA NOTE4e VF SW NOTE4d NOTE4f CASE(B.LIGHT) <LCD SA> SHEET(DIFF.) STOPPER(POLA) SHEET(POLA) CUSHION(2) CUSHION(1) SHEET(POLA) LCD MODULE HOLDER(LCD) Fig.3-2-4-2 (No.YF173)1-13...
- Page 14 3.2.4 DISASSEMBLY OF [18] MONITOR ASSEMBLY CAUTIONS (1) During the procedure, be careful in handling the LCD MODULE and other parts. Pay special attention not to damage or soil the monitor screen. If fingerprints are left on the screen, wipe them with clean chamois leather or a cleaning cloth.
- Page 15 [18] M.COVER ASSY HINGE ASSY (S18a) (S18c) L18e L18b L18a H.COVER(U) (S18a) L18g NOTE18e,f L18f L18h HINGE ASSY NOTE18a L18d L18c CN18b (S18b) P.C.MAGNET CN18a NOTE18b H.COVER(L) MONITOR BOARD ASSY KNOB(CURSOL) L18j L18k SHEET(M.REF) <NOTE18d> S pole N pole LIGHT GUIDE P.C.MAGNET H.COVER(L) SHEET(M.DIFF)
- Page 16 3.2.5 ASSEMBLY/DISASSEMBLY OF [11] OP BLOCK ASSMBLY/CCD BOARD ASSEMBLY Precautions Assembly of OP BLOCK ASSEMBLY / CCD BOARD AS- (1) Be careful in handling the CCD IMAGE SENSOR, OPTI- SEMBLY CAL LPF and the LENS components. Pay special atten- (1) Set the OPTICAL LPF first, and then the SHEET to the tion not to soil or damage the surfaces., especially with OP BLOCK ASSY.
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Page 17: 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 18 • • Chip IC replacement jig Charging Battery Adjustment Jig To be used for adjustment of the camera system. This Jig is used for the adjustment of the camcorders that have Main Body battery charging function. • Cleaning cloth Recommended the Cleaning cloth to wipe down the video heads, mechanism (tape transport system), optical lens sur- face.
- Page 19 JIG CONNECTOR CABLE CONNECTION Connection procedure Remove the screw (1-4), and remove the CASS.COVER. 4.2.1 CAUTIONS (1) Only 9 of 30pins of JIG CONNECTOR CABLE(PN:YTU93106B) are extended with wires. Additional 2pins (13 and 28) need CASS.COVER to be soldered and extended with the wires for adjustment and checking.
- Page 20 Jig connector diagrams MECHANISM COMPATIBILITY ADJUSTMENT 4.3.1 Tape pattern adjustment JIG CONNECTOR CABLE (YTU93106B) NOTE: Prior to the adjustment, remove the CASS.COVER. JIG CONN. BOARD (PIN NO.) MAIN CN102 (1) Play back the compatibility adjustment tape. (2) While triggering the HID, observe the waveform of AL_2.8VSYS V_OUT ENV_OUT.
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Page 21: Trouble Shooting
SECTION 5 TROUBLE SHOOTING SERVICE NOTE (No.YF173)1-21... - Page 22 EMERGENCY DISPLAY Example (in case of the error number 01): When any abnormal signal is input to the syscon CPU, an error number is displayed on the LCD monitor or in the electronic view UNIT IN REMOVE AND REATTACH finder. (Shown as examples 01 and 03) SAFEGUARD MODE BATTERY OR DC PLUG In every error status, the relevant messages as shown in the ex-...
- Page 23 Victor company of Japn, Limited Camcorder Category 12, 3-chome, Moriya-cho, Kanagawa-ku, Yokohama-city, Kanagawa-prefecture, 221-8528, Japan (No.YF173) Printed in Japan...