Panasonic NV-HS1000, Service Manual

Page: 10 / 138

1-2. SERIAL CLOCK TRANSMISSION ERROR DISPLAY
If the Serial Clock is not transmitted from IC6001 to IC7501,
"E9" is displayed as shown in Fig. T1. This indication will be
displayed either during the Service Information Display
mode or in normal mode.
<FIP>
Fig. T1 Serial Data/Clock Transmission Error Display
1-3. SERVICE INFORMATION DISPLAY
<FIP>
Service Mode
Number
Indicates the circuit
to be checked.
Service Data
Number
Indicate the condition
of the circuit and/or
the position of the mechanism
Service Information
Number
Indicates which circuit senses a
malfunction.
Fig. D1 Service Information Display
1-3-1. Purpose of Service Information Display
This information aids trouble shooting by indicating
the source of the malfunction. The service mode
number & service data number are used by the
technician during repair while the service information
can be used by the consumer to diagnose mal­
functions allowing the technician to provide a more
accurate repair cost estimate and reduce repair time.
1-3-2. Turning on Service Information Display
There are two ways to turn on the Service Informa­
tion Display.
1-6
(1) Press the FF, REW and EJECT buttons simulta­
neously. The Service Information will be displayed
for 1 minute.
(2) Connecting a Jumper wire between TP6010 and
TP6011 will display the service information indef­
initely.
In the Service Information Display, there are four digits
divided into 3 functions.
The first digit indicates which of the 7 service modes that the
unit is currently in.
MODE 1 : Checks tape protection circuit
MODE 2 : Checks tape transport mechanism
MODE 3 : Checks mode switching operation
MODE 4 : Checks control buttons
MODE 5 : Checks capstan motor
MODE 6: Checks cylinder motor
MODE 7: Checks loading/unloading operation
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