Critical Parts Replacing Time Table; Critical Parts Description - LG TL-AT130M Service Manual

CRITICAL PARTS REPLACING TIME TABLE

No. DESCRIPTION
1 DRUM ASSY
2 ARM ASSY CLEANER
3 MOTOR CAPSTAN (D-35)
4 BELT CAPSTAN
5 BASE ASSY A/C
6 HEAD F/E
7 ARM ASSY IDLER
8 HOLDER ASSY PINCH
9 BAND ASSY TENSION
10 HOUSING ASSY
11 CAPSTAN SOFT BRAKE
12 CLUTCHAY
Reference :
Changing Cleaning
Notes :
• Check the running path adjustment when you change the itens 1, 3, 5, 6 and 10.
• Check the back tension when you change Band Assy Tension.

CRITICAL PARTS DESCRIPTION

1. Drum Ass'y
2. Arm Ass'y Cleaner
4. Motor Capstan
5. Belt Capstan
6. Brake Ass'y Capstan
7. Base Ass'y A/C
8. Head F/E
12. Arm Ass'y Idler
13. Holder Ass'y Pinch
14. Band Ass'y Tension
15. Arm Ass'y
16. Clutch Ass'y
SECTION1 SUMMARY
1500 3000 5000 6000 7500 9000 10000 12000 Test freatures
Checking
Consists of video head, rotary trans and motor. records video and audio information on
the tape, and play the tape back.
Cleans video head and rotation head automatically.
Moves the tape with regular speed.
Transfers rotative energy of capstan motor to the driving system.
Brakes rotative energy of capstan motor.
Consists of three head.
Audio erase head in the left upper erases audio signal in dubbing.
Audio head in the right upper records and playes the audio signal.
CTL head in the right lower records and detects CTL pulse to control tape speed.
Is abbreviation of Full Erased Head.
erases the signal recorded on a tape clearly and absorb vibration of tape.
Is located between T/UP reel and supply reel.
Transfers ratative energy of capstan motor to T/UP reel or supply reel.
Sticks a video tape to capstan motor and has the tape played without being
slipped from capstan motor axle.
Has supply reel loosened properly with giving it some tensile force.
Makes the cassette tape inserted be loaded and ejected precisly and safely.
Plays the tape with trasfering rotative energy of capstan motor to idler reel.
(Audio information is recorded only on the Hi-Fi models)
1-5
Specification
RF out level -4dB and below
Whether extraneous
Wear status
matters come out
W/F(WTD) 0.4% and below
Variation amount :
Belt tension
within 40%
Audio and CTL out
-6dB and below
level
The rate of erasing
45dB min
(1KHz)
The capacity of ldler
4~12 g
for moving
Surrace solidity of
60~90
Roller
Back Torque 40~70 g
there shouldn't be any space
CST loading status
betwween CST and compartment
whether there is
Felt wear
touch noise
40~140gcm, 100~210gcm
Torque(Play, Rev)