Description Of The Vcr Mechanism; Top View - Panasonic TX-21GV1C Servicehandbuch

DESCRIPTION OF THE VCR MECHANISM

Characteristic of the K-Deck mechanism
_ K-Mecha Deck follows the VHS standard and uses three motors (DRUM MOTOR, CAPSTAN MOTOR and L/C MOTOR).
The L/C MOTOR is used to drive FRONT LOADING.
_ The deck recognises each mode by using a 4-BIT MODE signal. This 4-BIT MODE signal is generated by the CAM
SWITCH, which is driven by the L/C MOTOR.
_ There are 7 MODES which are utilised (EJECT / INITIAL / REV / IDLE / PLAY, STOP, SLOW / BRAKE / FF & REW).
_ The reduction of the mode shifting time, i.e. picture playing time, is enabled by using the FULL LOADING SYSTEM that has
the DRUM wrapped by the tape.
_ The Main PCB is separated from the Deck. When assembling, it is connected by the B-B TYPE CONNECTOR.
_ The CAPSTAN MOTOR and DRUM MOTOR are directly connected to the MAIN PCB DECK
ASSEMBLY DIAGRAM OF DECK ASSEMBLY

TOP VIEW

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1) EARTH BRACKET ASSEMBLY 9) IDLER PLATE TOTAL ASSEMBLY 17)
2) FE HEAD
3) S SLANT POLE ASSEMBLY
4) TENSION BAND ASSEMBLY
5) REEL TABLE
6) MAIN BASE ASSEMBLY
7) S SUB BRAKE ASSEMBLY
8) S MAIN BRAKE ASSEMBLY
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10) T MAIN BRAKE ASSEMBLY
11) T-BRAKE ASSEMBLY
12) RELAY LEVER
13) CAPSTAN MOTOR
14) PINCH LEVER TOTAL ASSEMBLY
15) L/C BRACKET TOTAL ASSEMBLY
16) CAM GEAR
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Fig.12.
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A/C HEAD TOTAL ASSEMBLY
T SLANT POLE ASSEMBLY
DRUM TOTAL ASSEMBLY
RECORD SAFETY LEVER
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