Panasonic NV-DV2000 Service Manual page 66

Precautions for maintenance of timer/main C.B.A.
Disconnection of the flexible cable between P7502 and P7901 for
maintenance or check of the timer/main C.B.A. without applying any voltage
will cause the loss of the back up +B of the timer microcomputer. Be sure to
apply a voltage of +4.5 V to the connector of P7503 before disconnecting the
flexible cable.
If the back up +B is lost, the CH setting and data of the timer will be initialized
D
C
STILL
FF
B
PLAY
STILL
REC ALBUM
MIX
IN SEL
LINE OUT
A
1 2
REW
STOP
REC
S OUT
PRINT 3 DNR TBC
3
SP/LP/ELP
EDIT MODE 2 EDIT MODE 1
MIX LED
4 5
(FOIL SIDE)
Back up battery terminal (1.5 X3)
EJECT POWER
AUDIO
OUT
STEREO
SELECT
DV F/R SW
8mm
EDIT
CONTROL
S IN
LINE IN
(COMPONENT SIDE)
6 7
TIMER C.B.A.
Transistor
Q7501 A-4
Q7502 A-3
Transistor & Resistor
QR7501 A-3
QR7502 A-3
Integrated Circuit
IC7501 B-5
IC7502 B-4
IC7503 B-2
IC7504 D-4
Test Land
TL4801 B-3
TL4802 B-2
TL7501 A-5
TL7502 B-5
TL7503 B-5
TL7505 A-6
TL7506 B-6
TL7509 B-6
TL7510 B-6
Adjstment
VR4801 B-3
VR4802 B-2
Connector
P7501 B-2
P7502 B-7
P7503 B-6
ADDRESS INFORMATION
8