DOWNLOAD Sharp VC-MH742HM (serv.man21) Service Manual ↓ Size: 163.54 KB | Pages: 3 in PDF or view online for FREE

Model
VC-MH742HM (serv.man21)
Pages
3 Few pages! See other manuals at the bottom of the first or last page.
Size
163.54 KB
Type
PDF
Document
Service Manual
Brand
Device
VCR / Disassembly
File
vc-mh742hm-sm21.pdf
Date

Sharp VC-MH742HM (serv.man21) Service Manual ▷ View online

4
VC-M332HM
VC-MH742HM
E
C1
2
1
1
8
10
5
4
C2
6
7
3
3
C1
C2
9
E
F
F
G
G
a
b
b
c
d
d
11
FRONT PANEL
MAIN FRAME
MECHANISM/
MAIN PWB
ASSEMBLY
OPERATION (2)
PWB
PWB HOLDER
ANTENNA
TERMINAL
COVER
2. DISASSEMBLY AND REASSEMBLY
2-1  DISASSEMBLY OF MAJOR BLOCKS
TOP CABINET
: Remove 4 screws 
1
.
FRONT PANEL
: Remove 2 screws 
2
 and 7 clips 
3
.
SHUTTL SWITCH : Remove 3 screws 
q
 and shuttle
switch knob.
OPERATION (1) : Remove 1 hook 
a
. Remove 3 hooks
PWB AND PWB
b
.
HOLDER
F A/V PWB AND 
: Remove 1 screw 
4
 and 
5
.
PWB HOLDER
OPERATION (2) : Remove 2 hooks 
c
 and 3 hooks 
d
.
PWB AND PWB
HOLDER
MAIN PWB/
: Remove 3 screws 
PWB holder.
MECHANISM
Remove 2 screws 
7
 , 2 screws 
8
, 2
ASSEMBLY
screws 
9
 and 1 screw 
0
.
TOP CABINET
F A/V PWB
OPERATION (1)
PWB
SHUTTLE SWITCH
SHUTTLE SWITCH KNOB
5
VC-M332HM
VC-MH742HM
1. When removing the mechanism from the main PWB,
remove 2 screws 
1
 and 1 screw 
2
 and H/A shield.
Remove the antenna cover.
Remove the FFC cable (AA, AD, AH) 
3
 which con-
necting the PWB and the mechanism.
Take out vertically the mechanism so that it does not
damage the adjacent parts.
2. Removing the mechanism and cassette housing.
Remove 2 screws 
4
 fixing the cassette housing to the
mechanism, and remove the cassette housing.
1
2
4
3
MAIN PWB
CASSETTE
HOUSING
MECHANISM CHASSIS
H/A SHIELD
2-2  DISASSEMBLING THE MECHANISM/MAIN PWB ASSEMBLY
ANTENNA TERMINAL COVER
6
VC-M332HM
VC-MH742HM
cassette housing. (Conditions: When mechanism and
PWB have been installed)
2. Mechanical initial setting
Feed the pulley feed gear of loading motor with screw
driver. After ascertaining the return to the initial set posi-
tion (*1) install the cassette housing in the specified
position. (This method is applied only for the mechanism.)
PARTS WHICH NEED PARTICULAR CARE
When installing the mechanism chassis on the PWB unit,
take care so as to prevent deformation due to contact of
mechanism chassis with REC TIP SW.
Pulley feed gear
Screwdriver
Casecon
drive gear
Drive angle of
cassette housing
Tilt mark (*1)
INSTALLING THE CASSETTE HOUSING
When the cassette housing is installed on the mechanism,
the initial setting is essential condition.
There are two initial setting methods, namely electrical
and mechanical.
1. Electrical initial setting
So as to perform initial setting of mechanism execute the
Step 1 of Installation of cassette housing. After ascertain-
ing the return to the initial setting position (*1) install the
2-3  CARES WHEN REASSEMBLING
INSTALLING THE MECHANISM ON PWB
Lower vertically the mechanism, paying attention to the
mechanism edge, and install the mechanism with due
care so that the parts are not damaged. So as to fix the
mechanism to the main PWB install two housings. (Fit the
antenna cover to one of them. For other, fix the vicinity of
loading motor and solder joint side of main PWB.) Con-
nect again the FFC cable (AA-MH, AD-ME, AH-MZ)
between the mechanism and the main PWB.
START SENSOR
AC CONNECTOR
AL CONNECTOR
REC TIP SW
AE CONNECTOR
END SENSOR
Display

Sharp VC-MH742HM (serv.man21) Service Manual ▷ Download

  • DOWNLOAD Sharp VC-MH742HM (serv.man21) Service Manual ↓ Size: 163.54 KB | Pages: 3 in PDF or view online for FREE
  • Here you can View online or download the Service Manual for the Sharp VC-MH742HM (serv.man21) in PDF for free, which will help you to disassemble, recover, fix and repair Sharp VC-MH742HM (serv.man21) VCR. Information contained in Sharp VC-MH742HM (serv.man21) Service Manual (repair manual) includes:
  • Disassembly, troubleshooting, maintenance, adjustment, installation and setup instructions.
  • Schematics, Circuit, Wiring and Block diagrams.
  • Printed wiring boards (PWB) and printed circuit boards (PCB).
  • Exploded View and Parts List.