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Mechanism Service Mode; How To Set The "mechanism Service Mode - JVC HR-J271MS Service Manual

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1.5 MECHANISM SERVICE MODE

This model has a unique function to enter the mechanism
into every operation mode without loading of any cassette
tape. This function is called the "MECHANISM SERVICE
MODE".

1.5.1 How to set the "MECHANISM SERVICE MODE"

(1) Disconnect VCR from AC.
(2) Connect TPGND and TP7001(TEST) on the Main board
assembly with a jump wire.
[HR-J271MS, HR-J471MS]
[HR-J677MS, HR-J777MS]
Demodulator
board assembly
(3) Connect VCR to AC.
(4) Press the POWER button.
(5) With lock levers A B on the left and right of the Cas-
(6) The cassette holder lowers and, when the loading has
C3018
Timer clock
Fig. 1-5-1
TP106
PB. FM
TP2253
A.PB.FM
C3025
Timer clock
Fig. 1-5-2
Digitized in Heiloo Netherlands
sette holder assembly pulled toward the front, slide the
holder in the same direction as the cassette insertion di-
rection. (For the positions of lock levers A B , refer to
the "Procedures for Lowering the Cassette holder assem-
bly" on page 1-2 of 1.3 DISASSEMBLY/ASSEMBLY
METHOD.)
completed, the mechanism enters the desired mode.
TP106
PB.FM
TP111
D.FF
TP4001
CTL.P
Main board
assembly
CP5302
CP4001
CN7001
TPGND
TP7001
TEST
TP4001
CTL. P
TP111
D.FF
CP4001
Main board
assembly
CP5302
CP5301
CN7003
TPGND
TP7001
TEST
1/21/2018
To Mini front
To Mini ope
1-5

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This manual is also suitable for:

Hr-j471msHr-j777msHr-j677ms

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