JVC GR-D750UC, Service Manual

Page: 7 / 23

(No.YF173)1-7
3.2.2 ASSEMBLY/DISASSEMBLY OF CABINET PARTS AND ELECTRICAL PARTS
z Disassembly procedure
NOTE1a:
When removing the screw(No.6), open the MONITOR ASSY.
When removing the UPPER ASSY, close the MONITOR ASSY.
NOTE1b:
When attaching, be careful with the wiring.
• Place the FPC(BUTTON) in the FOOK properly.
• Place the WIRES(SPEAKER) properly between the GUIDE.
• Fold the FPC(JUNCTION) properly.
NOTE1c:
During the procedure, be careful not to damage the parts.
NOTE1d:
When attaching, fully pull up the KNOB(EJECT) to the OP
BLOCK as shown in the figure.
NOTE2:
When removing, remove the two screws (No.9, 10) with the
CASSETTE COVER open.
NOTE4a:
When removing, first pull out the FPC that connects the
CCD BOARD ASSY and the MAIN BOARD ASSY as the
FPC interferes with the procedure.
NOTE4b:
Refer to 3.2.3 DISASSEMBLY OF [4] VF ASSEMBLY for the
disassembly of VF ASSY.
NOTE5a:
When removing, be careful in handling the parts. Pay spe-
cial attention not to break fragile sections.
NOTE5b:
Screw No.15 is located under the COVER(JACK).
NOTE6a:
Be careful in handling the POWER UNIT as it consists of
three parts, and the parts are connected by the FPC.
NOTE6b:
When attaching, be sure to attach firmly.
NOTE8:
When attaching, be careful in wiring.
NOET9:
During the procedure, be careful not to damage the EJECT
SWITCH.
During the procedure, leave the CASSETTE COVER closed.
NOTE11a:
When attaching, do not connect the CCD MAIN BOARD
FPC to the MAIN BOARD first, connect the FPC after attach-
ing the VF ASSY.
NOTE11b:
Refer to 3.2.5 ASSEMBLY/DISASSEMBLY OF [11] OP
BLOCK ASSMBLY/CCD BOARD ASSEMBLY of OP BLOCK
ASSY.
NOTE14:
When removing, be careful not to damage the parts or cut the wires.
NOTE15:
During the procedure, be careful not to damage the parts.
When attaching, be careful with the wiring.
NOTE16a:
When attaching, be careful with the locations of the SWITCH
and the KNOB(VID/MEM SW). (DSC MODEL ONLY)
NOTE16b:
During the procedure, be careful not to damage the SWITCH.
When attaching, leave the MONITOR ASSY open.
NOTE16c:
When attaching, be careful with the wiring of the WIRE
(SPEAKER).
NOTE17:
When removing, push the COVER from the backside, and
be careful in handling the parts.
NOTE18:
Refer to 3.2.4 DISASSEMBLY OF [18] MONITOR ASSEM-
BLY for the disassembly of the MONITOR ASSY.
NOTE19a:
During the procedure, be careful in handling the parts.
NOTE19b:
When attaching, be careful with the wiring and the attach-
ment locations of the parts.
z Destination of connectors
UPPER ASSY
CASS.COVER
TOP COVER
VF ASSY
LOWER ASSY
POWER UNIT
FRONT ASSY
MIC
REAR COVER ASSY
REAR BOARD ASSY
REAR BOARD ASSY
OP BLOCK ASSY
BKT TOP
MAIN BOARD ASSY
MECHANISSM ASSY
STEP
No.
PART NAME
Fig.
No.
POINT NOTE
BUTTON UNIT
JUNCTION BOARD ASSY
COVER UPPER
MONITOR ASSY
SPEAKER
[1]
[2]
[3]
[4]
[5]
[6]
[7]
[8]
[9]
/[10]
[10]
[11]
[12]
[13]
[14]
2(S1a),2(S1b),3(S1a),(S1d),
L1a,b,c,d,e,f,g,3(L1h),L1j,CN1
2(L2a),4(S2),3(L2b)
2(S3),2(L3)
CN4a,b,S4a,S4b
COVER(JACK),CN5,2(S5a),
S5b,S5c,2(S5b),2(L5)
2(S6),2(L6a),2(L6b),L6c
S7,L7a,b,CN7
S8,PLATE(MIC)
2(S9),L9a,b,CN9
S10
CN11,2(L11)
4(S12),2(L12a),L12b
CN13a,b,c,d,e,S13,L13
L14,4(S14)
FA1-1
FA1-2
FA2
FA3
FA4
FA5
FA6
FA7
-
FA8
FA9
FA10
FA11
NOTE1a,b,c,d
NOTE2
-
NOTE4a,b
NOTE5a,b
NOTE6a,b
-
NOTE8
NOTE9
-
NOTE11a,b
-
NOTE14
[15]
[16]
[17]
[18]
[19]
CN15,L15a,S15,L15,b,c,d,e,
CN16a,b
2(S17)
2(S18),2(L18)
5(S19),L19a,b,c,d,BKT(HINGE),
KNOB(SILDE),KNOB(EJIECT),
BKT(GROUND)
UA1
UA2
UA3
NOTE15
NOTE16a,b,c
NOTE17
NOTE18
NOTE19a,b
CN1 MAIN CN103 JUNCTION CN401 26
CN4a MAIN CN4201 CCD CN5001 20
CN4b MAIN CN7801 VF CN7001 18
CN5 MAIN CN105 POWER UNIT - 12
CN7 MAIN CN2601 MIC - 4
CN9 MAIN CN101/CN106 REAR CN501/CN504 40/34
CN11 MAIN CN4901 OP BLOCK ASSY - 26
CN13a MAIN CN1604 SENSOR - 16
CN13b MAIN CN1603 CAPSTAN MOTOR - 18
CN13c MAIN CN1602 DRUM MOTOR - 11
CN13d MAIN CN3501 HEAD - 8
CN13e MAIN CN1601
LOADING MOTOR
- 8
/ROTARY ENCODER
CN15 JUNCTION CN403 BUTTON UNIT - 6
CN16a JUNCTION CN404 SPEAKER - 2
CN16b JUNCTION CN402 MONITOR CN7601 22
CN.
No.
PIN
No.
CONNECTOR