Mechanism Service Mode; How To Set The "Mechanism Service Mode - JVC HM-HDS1EK Service Manual

1.9 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".

1.9.1 How to set the "MECHANISM SERVICE MODE"

(1) Disconnect VCR from AC.
(2) Connect TPGND and TP7001 (TEST) on the Display
board assembly with a jump wire.
(3) Connect VCR to AC.
(4) Press the POWER button.
Swithing regulator
board assembly
Hard disk drive
Fan motor
Regulator
board assembly
TPGND
(HDD)
PATCH CORD
PTU94022-18
QUQ112-1840CG
TP7001
TEST
Display board assembly
TPGND
LED SW
board assembly
LED board assembly
<Front panel assembly>
(5) With lock levers A B on the left and right of the Cassette
holder assembly pulled toward the front, slide the holder
in the same direction as the cassette insertion direction.
(For the positions of lock levers A B , refer to the "Pro-
cedures for Lowering the Cassette holder assembly" on
page 1-5 of 1.6 HOW TO REMOVE THE MAJOR PARTS
<VHS section>
(6) The cassette holder lowers and, when the loading has
completed, the mechanism enters the desired mode.
Terminal board assembly
Main board assembly
S-Sub
board assembly
VR701
DV AGC
TP701
On screen
D AGC
board assembly
VHS mechanism
CN3011
Supporting
tape side
Fig. 1-9-1
3D Digital
/2M board
assembly
VR1401
D/A
LEVEL ADJ
Demodulator
board
assembly
TP4001
CTL.P
TP111
D.FF
TP2253
A.PB FM
TP106
PB FM
CN7507
PATCH CORD
PTU94022-10
QUQ112-1040CG
Jack board assembly
Eject SW board assembly
1-9