Schematic Diagram And Circuit Board Layout Notes - Panasonic PV-M1327 Service Manual

Hot Circuit
Primary circuit exists on the Main C.B.A. and TV Main C.B.A.
This circuit is identified as "HOT" on the C.B.A. and in the
Service Manual. Use extreme care to prevent accidental shock
when servicing.
Service Mode
In order to inhibit detection of the Supply & Takeup Photo
Transistors, Reel Sensor, and Cylinder Lock, place a jumper
between TP6001 and GND.
In this mode, Mechanism movement can be confirmed. When
removing Cassette Up Ass'y or loading mecanism manually, it
can be confirmed without a cassette.
To release from this mode, remove the jumper between
TP6001 and GND.
Defeating the Auto Tracking
To defeat the Auto Tracking Function, place the instrument in
the STOP mode and place a jumper between TP6003 and
TP6009 on the Main C.B.A. The tracking will be placed in the
neutral position.
How to set Tracking to the Neutral Position
Ejecting the cassette tape and then, reinserting it will reset the
tracking to the Neutral position.
How to reset all Combination VCR Memory
functions
To reset (clear) the select language, channel auto set and set
clock functions to their initial power on condition (power on, no
cassette inserted), hold down the PLAY and REWIND buttons
on the unit together for more than 5 seconds.
Power will shut off.
Method for Manual Loading / Unloading of
Mechanism
Turn the Main Cam Gear counterclockwise (for loading) or
clockwise (for unloading) using needlenose pliers etc.
Unload/Eject
When loading without a cassette, press Portion "a" on both
sides of the Holder Unit of Cassette Up Ass'y so that the Lever
clears Tab and Hole.
Lever
Hole
Tab
Holder Unit
Model No. Identification Mark
Use Marks shown in the chart below to distinguish the
different models included in this Service Manual.
MODEL
PV-M1327
VV1307
VV1317W
PV-M1347
PV-M1357W
PV-M2037
VV2007
VV2017W
PV-M2047
Not Used
Note:
Refer to Item 5 of Schematic Diagrams and Circuit
Board Layout Notes, for mark "Z."
1-15
Needlenose Pliers
Main Cam Gear
Load
Fig. 8-1
Top Plate
Hole
Slide
Portion "a"
Fig. 8-2
MARK
A
B
C
D
E
F
G
H
I
Z
Lever
Tab