25
VC-S101U
REPLACEMENT OF DRUM D.D. MOTOR
1. Set the ejection mode.
2. Withdraw the main power plug from the socket.
•
Removal (Perform in numerical order.)
1. Disconnect the FFC cable
1
.
2. Unscrew the D.D. stator assembly fixing screws
2
.
3. Take out the D.D. stator assembly
3
.
4. Unscrew the D.D. rotor assembly fixing screws
4
.
5. Take out the D.D. rotor assembly
5
.
Notes:
1. In removing the D.D. stator assembly, part of the drum
earth spring pops out of the pre-load collar.
Be careful not to lose it.
2. Install, so that the D.D. rotor ass'y and upper drum ass'y
mounting direction check holes align.
(Align the upper drum dent with the rotor hole.)
3. Be careful not to damage the upper drum or the video
head.
4. Protect the hole elements from shock due to contact with
D.D. stator or D.D. rotor ass'y.
5. After installation adjust the playback switching point for
adjustment of servo circuit.
REPLACEMENT OF THE CAPSTAN D.D.
(DIRECT DRIVE) MOTOR
•
Remove the mechanism from the main PWB (refer to
Page 8 "1. When removing the mechanism from the
main PWB").
•
Removal (Follow the order of indicated numbers.)
1. Remove the reel belt
1
.
Figure 4-37.
2. Remove the three screws
2
.
• Reassembly
1. Taking care so that the capstan shaft does not contact
the mechanism chassis, set its position on the mecha-
nism chassis, and then install with the three screws.
2. Install the reel belt.
Notes:
1. After installing the capstan D.D. motor, be sure to rotate
the capstan D.D. motor and check the movement.
2. Set the tape, and check for the tape crease near the
reverse guide in the playback mode. Adjust the A/C
head and azimuth as stated in Page 23 item 2. If crease
is found, adjust as stated in Page 24 "HEIGHT ADJUST-
MENT OF REVERSE GUIDE".
Figure 4-38.
Capstan D.D.
motor
Capstan D.D. motor
control PWB
2
1
2
4
3
4
5
1
D.D. stator ass'y
D.D. rotor ass'y
FFC
Upper drum
Reel belt
Summary of Contents for VC-S101U
Page 6: ...VC S101U 6 1 3 LOCATION OF MAJOR COMPONENTS AND CONTROL ...
Page 58: ...58 VC S101U 8 BLOCK DIAGRAM SYSTEM SERVO BLOCK DIAGRAM ...
Page 59: ...59 VC S101U ...
Page 60: ...60 VC S101U SIGNAL FLOW BLOCK DIAGRAM REC Luminance signal REC Chrominance signal ...
Page 62: ...62 VC S101U AUDIO BLOCK DIAGRAM ...
Page 63: ...63 VC S101U REC Signal PB Signal EE Signal ...
Page 64: ...64 VC S101U POWER CIRCUIT BLOCK DIAGRAM ...
Page 67: ...67 13 12 11 10 9 8 7 VC S101U ...
Page 69: ...69 13 12 11 10 9 8 7 VC S101U ...
Page 71: ...71 13 12 11 10 9 8 7 VC S101U ...
Page 73: ...73 13 12 11 10 9 8 7 VC S101U ...
Page 75: ...75 13 12 11 10 9 8 7 VC S101U ...
Page 77: ...77 13 12 11 10 9 8 7 VC S101U ...
Page 79: ...79 13 12 11 10 9 8 7 VC S101U ...
Page 81: ...81 13 12 11 10 9 8 7 VC S101U ...
Page 83: ...83 13 12 11 10 9 8 7 VC S101U ...
Page 84: ...84 7 6 5 4 3 2 1 A B C D E F G H VC S101U PWB FOIL PATTERN MAIN PWB ...
Page 85: ...85 13 12 11 10 9 8 7 VC S101U ...
Page 86: ...86 7 6 5 4 3 2 1 A B C D E F G H VC S101U Y C PWB SIDE A Y C PWB SIDE B ...
Page 87: ...87 13 12 11 10 9 8 7 VC S101U NR PWB SIDE A NR PWB SIDE B ...
Page 88: ...88 7 6 5 4 3 2 1 A B C D E F G H VC S101U Hi Fi JACK PWB SIDE A SIDE B ...
Page 89: ...89 13 12 11 10 9 8 7 VC S101U OPERATION PWB FRONT A V PWB ...
Page 90: ...90 7 6 5 4 3 2 1 A B C D E F G H VC S101U JACK PWB SIDE A JACK PWB SIDE B ...