JVC GR-D200US Service Manual + Parts List

Automated PDF to Text preview page 4 to 6:

1.1.2 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 Fig.1-1-11 below. (3) Clearance distance When replacing primary circuit components, confirm specified clearance distance (d), (d') betwee
n soldered terminals, and between terminals and surrounding metallic parts. See Fig.1-1-11 below.
d d' Chassis 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 Fig.1-1-9 and following Fig.1-1-12.

a

b c

Externally exposed accessible part

Z V

A

Fig.1-1-9 (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 Fig.1-1-10 and grounding specifications.
AC inlet Exposed accessible part

Fig.1-1-8
Earth pin MIlli ohm meter Grounding Specifications Region USA & Canada Europe & Australia Grounding Impedance ( Z ) Z Z 0.1 ohm 0.5 ohm

Fig.1-1-10
AC Line Voltage 100 V 100 to 240 V 110 to 130 V 110 to 130 V 200 to 240 V Region Japan USA & Canada Europe & Australia 1M R Insulation Resistance (R) R 1 M /500 V DC R 12 M /500 V DC Dielectric Strength AC 1 kV 1 minute AC 1.5 kV 1 minute AC 1 kV 1 minute AC 3 kV 1 minute (Class ) AC 1.5 kV 1 minute (Class ) Clearance Distance (d), (d') d, d' 3 mm d, d' 4 mm d, d' 3.2 mm d 4 mm d' 8 m m (Power cord) d' 6 m m (Primary wire)

10 M /500 V DC

Fig.1-1-11
AC Line Voltage 100 V 110 to 130 V 110 to 130 V 220 to 240 V Region Japan USA & Canada
0.15 1.5 2

Load Z
1

Leakage Current (i) i i i i i i 1 mA rms 0.5 mA rms 0.7 mA peak 2 mA dc 0.7 mA peak 2 mA dc

a, b, c Exposed accessible parts Exposed accessible parts Antenna earth terminals Other terminals

Europe & Australia

50

Fig.1-1-12 NOTE : These tables are unofficial and for reference only. Be sure to confirm the precise values for your particular country and locality.

1-4 (No.YF001)

SECTION 3 DISASSEMBLY
3.1 BEFORE ASSEMBLY AND DISASSEMBLY 3.1.1 Precautions · Be sure to disconnect the power supply unit prior to mounting 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). · When connecting/disconnecting wires, pay enough attention not to damage the connectors. · When inserting the flat wire to the connector, pay attention to the direction of the flat wire. · Be careful in removing the parts to which some spacer or shield is attached for reinforcement or insulation. · When replacing chip parts (especially IC parts), first remove the solder completely to prevent peeling of the pattern. · Tighten screws properly during the procedures. Unless specified otherwise, tighten screws at a torque of 0.118N·m (1.2kgf·cm). However, 0.118N·m (1.2kgf·cm) is a value at the time of production. At the time of service, perform the procedure at a torque 10% less than 0.118N·m (1.2
kgf·cm). (See "SERVICE NOTE" as for tightening torque.) 3.1.2 Destination of connectors

· Torque driver
Be sure to use to fastening the mechanism and exterior parts because those parts must strictly be controlled for tightening torque.

· Bit
This bit is slightly longer than those set in conventional torque drivers.

· Tweezers
To be used for removing and installing parts and wires.

· Chip IC replacement jig
To be used for replacement of IC.

· Cleaning cloth
Recommended cleaning cloth to wipe down the video heads, mechanism (tape transport system), optical lens surface.

3.2

ASSEMBLY AND DISASSEMBLY OF MAIN PARTS

Two kinds of double-arrows in connection tables respectively show kinds of connector/wires. : Flat wire : Wire : Board to board (B-B) : The connector of the side to remove
CONN. No. CN2a CN2b MAIN MAIN CN101 CN103 CONNECTOR MONI/BW MIC CN761 CN762 PIN No. 40 2

3.2.1 Assembly and disassembly When reassembling, perform the step(s) in reverse order.
STEP No. [1] [2] PART Fig. No. POINT S1,2(L1) S2a,2(S2b),3(S2c) 2(S2d),S2e,S2c L2,CN2a,b 2(S8),L8,CN8a NOTE -

[8]

3.1.3 Disconnection of connectors (Wires)
Wire Wire

TOP COVER ASSEMBLY Fig.C1 Fig.C2-1 UPPER ASSEMBLY (Inc. VF ASSEMBLY, SPEAKER/MONITOR) Fig.C2-2 VF ASSEMBLY

( 1)

( 2)

( 3)

( 4)

NOTE 8a NOTE 8b ( 5)

FPC Connector · Pull both ends of the connector in the arrow direction, remove the lock and disconnect the flat wire. B-B Connector

Lock FPC Connector · Extend the locks in the direction of the arrow for unlocking and then pull out the wire. After removing the wire, immediately restore the locks to their original positions because the locks are apt to come off the connector.

B-B Connector B-B Connector · Pull the both ends of the board in the direction of the arrow, and remove the B-B Connector.

Fig.3-1-1 3.1.4 Tools required for disassembly and assembly
Torque driver YTU94088 Bit YTU94088-003 Tweezers P-895

(1) Order of steps in Procedure When reassembling, preform the step(s) in the reverseorder. These numbers are also used as the identification (location) No. of parts Figures. (2) Part to be removed or installed. (3) Fig. No. showing Procedure or Part Location. C = CABINET (4) Identification of part to be removed, unhooked, unlocked, released, unplugged, unclamped or unsoldered. S = Screw L = Lock, Release, Hook SD = Solder CN = Connector [Example] · 4 (S1a) = Remove four S1a screws. · 3 (L1a) = Disengage three L1a hooks. · 2 (SD1a) = Unsolder two SD1a points. · CN1a = Remove a CN1a connector. (5) Adjustment information for installation.

Chip IC replacement jig PTS40844-2

Cleaning cloth KSMM-01

Fig.3-1-2 (No.YF001)1-5

3.2.2 ASSEMBLY/DISASSEMBLY OF CABINET PARTS AND ELECTRICAL PARTS Disassembly procedure
STEP No. [1] [2] [3] [4] [5] [6] [7] [8] [9] [10] [11] [12] [13] [14] [15] /[16] PART RING (VF) UPPER ASSEMBLY Fig. No. POINT NOTE NOTE3 NOTE4a,b NOTE5 NOTE6a,b,c NOTE7a,b,c NOTE8 NOTE10a,b,c NOTE11 -

Fig.C1-1 S1a,S1b,2(L1) S2a,COVER(JACK) 2(S2a),S2b,4(S2c),CN2a,b SUB OPE UNIT Fig.C1-2 CN3,SPACER JACK BOARD ASSEMBLY COVER(JACK),S4a,4(S4b),CN4 MO-SW BOARD ASSEMBLY S5,L5 MONITOR ASSEMBLY 2(S6a),L6a,COVER(UPPER) 2(S6b),2(L6b), LUG WIRE FRONT ASSEMBLY Fig.C2 2(S7),L7a,b,c,CN7a,b,c REAR ASSEMBLY CN8,S8a,3(S8b) MAIN BOARD ASSEMBLY Fig.C3 CN9a,b,c,d,e,f,S9a,S9b,L9 OP BLOCK ASSEMBLY Fig.C4 S10a,2(S10b),L10 /CCD BOARD ASSEMBLY VF ASSEMBLY S11a,S11b,L11a,b BASE Fig.C5 2(S12) BRACKET(TOP)ASSEMBLY 3(S13),4(L13) LOWER ASSEMBLY Fig.C6 2(S14),L14 PRE/MDA BOARD ASSEMBLY 3(S15a),BRACKET(MECHA)ASSEMBLY, /MECHANISM ASSEMBLY 2(S15b),L15,SHIELD COVER CN15a,b,c,d,e,f,3(S15c)

NOTE7b: Be careful of electric shock due to a capacitor for lighting a strobe. NOTE7c: When attaching the FRONT ASSEMBLY, put the FRONT ASSEMBLY securely in the slot of the LOWER CASE. Be careful about the engagement of the wire. NOTE8: During the procedure, open the CASSETTE COVER so that you can see the sticker attached to the CASSETTE HOUSING ASSEMBLY. If you keep the CASSETTE COVER completely open during the procedure, the SW501 on the backside of the REAR ASSEMBLY may be damaged. NOTE10a: Be careful not to damage the lens. NOTE10b: Be careful not to damage or cut the FPC. NOTE10c: For the disassembly procedure of OP BLOCK ASSEMBLY/ CCD BOARD ASSEMBLY, see "3.2.4 ASSEMBLY/DISASSEMBLY OF [10] OP BLOCK ASSEMBLY/CCD BOARD ASSEMBLY." NOTE11: For the disassembly procedure of the VF ASSEMBLY, see "3.2.5 DISASSEMBLY/ASSEMBLY OF [11] VF ASSEMBLY." Destination of connectors
CONN. No. CONNECTOR PIN No.

NOTE3: The sub operation unit is attached to the UPPER CASE by using double-sided adhesive tape. Don't remove the sub operation unit except when replacing it. Also, the FPC is attached to the backside of the UPPER CASE by using a spacer. Don't remove it. NOTE4a: When removing the JACK BOARD ASSEMBLY, remove the two screws 17 and 18 if the screws attach the LUG wire to the JACK BOARD ASSEMBLY. And then, remove the COVER (UPPER). NOTE4b: When attaching the JACK BOARD ASSEMBLY, be careful about the position of switch. NOTE5: The wire of the MO-SW BOARD ASSEMBLY is attached to the backside of the UPPER CASE by using a spacer. Don't remove the wire from the spacer except when replacing the MO-SW BOARD ASSEMBLY. NOTE6a: When disassembling the MONITOR ASSEMBLY, first remove the COVER (UPPER). Be careful not to damage the parts when removing the COVER (UPPER), especially if the FPC of the sub operation unit are attached to the wire of the MO-SW BOARD ASSEMBLY by using a spacer. NOTE6b: Since the HINGE ASSEMBLY is in
serted between the EARTH PLATE (U) and and the UPPER CASE, be careful not to damage or deform the EARTH PLATE (U) when removing the MONITOR ASSEMBLY. NOTE6c: For the disassembly procedure of MONITOR ASSEMBLY, see "3.2.3 DISASSEMBLY/ASSEMBLY of [6] MONITOR ASSEMBLY." NOTE7a: When removing the FRONT ASSEMBLY, open the CASSETTE COVER and remove the screw. 1-6 (No.YF001)

CN2a CN2b CN3 CN4 CN7a CN7b CN7c CN8 CN9a CN9b CN9c CN9d CN9e CN9f

MAIN MAIN JACK JACK MAIN MAIN MAIN MAIN MAIN MAIN MAIN MAIN MAIN MAIN

CN110 CN109 CN403 CN402 CN112 CN103 CN113 CN106 CN101 CN102 CN105 CN104 CN107 CN113 CN306 CN305 CN304 CN302 CN307 CN303

JACK MONITOR SUB OPE UNIT MO-SW STROBE STROBE UNIT MIC (INT) REAR OP BLOCK CCD POWER/ZOOM UNIT VF ASSY PRE/MDA IR SENSOR

CN401 CN501 CN307 CN901 CN7001

24 9 2 10 2 4 80 24 20 15 20 80 6 16 18 11 8 6 6

CN601 45/39

CN15a PRE/MDA CN15b PRE/MDA CN15c PRE/MDA CN15d PRE/MDA CN15e PRE/MDA CN15f PRE/MDA

CAPSTAN MOTOR DRUM MOTOR HEAD LOADIND MOTOR

ROTARY ENCODER -