Mechanism Service Mode; How To Set The "Mechanism Service Mode - JVC SR-VS30U Service Manual

1.10 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".

1.10.1 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.
SW/REG BOARD
ASSEMBLY
CP5321
bend
right side
CN1001
DV MAIN BOARD right side
ASSEMBLY
CN5501
DV DRUM
DV MECHANISM
ASSEMBLY
POWER SW BOARD
DV MDA BOARD
ASSEMBLY
ASSEMBLY
FW7002
1-12
TERMINAL BOARD ASSEMBLY
CN901
FAN
bend
ST2
right side
right side
CP5322
CP5325
bend
CN5323
back side
CN3701
CN2001
bend
(JIG CONN.)
CN1501
CN5506
back side
CN1502
FW7001
SW/DISPLAY 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 1-4 of 1.5 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.
3D DIGITAL/2M BOARD ASSEMBLY
right side
CN502
right side
TP701
D YV IN
VR701
D YV IN
MAIN BOARD
ASSEMBLY
CP3004
CN1
right side
DRUM
VHS MECHANISM ASSEMBLY
back side
CN7001
Fig. 1-10-1
DEMOD BOARD
ASSEMBLY
VR1401
D/A LEVEL
ADJ
right side
make a crease
TP111
D.FF
TP4001
right side
CTL. P
CN3001
TP106
PB. FM
TP2253
A. PB.FM
CP4001
CP3003
right side
A/C HEAD
back side
JOG BOARD
ASSEMBLY
CN7191
TPGND
TP7001
TEST