Sony HDW-F500 Maintenance Manual page 133

[F1] (CASSTT SW) Key :
Performs checking to functions of cassette tab sensor and
REC inhibit sensor
(switch).
(1) Press [F1] key from SERVO CHECK menu to enter
to CASSTT SW menu.
(2) Sequentially press the switches/sensors 1 to 8
shown in the illustration below with your finger tip
and check that "0" located under corresponding
SW No. on the display changes to "1".
Also check that "1" returns to "0" when released the
switches/sensors 1 to 6 just pressed.
If "1" is not indicated at the specified location or if "1"
does not return to "0", check the following:
Malfunctioning of cassette tab sensors (1 to 6) :
• Check the applicable sensor located on PTC-59
board.
• Check the sensor input circuit (DR-307 board).
Malfunctioning of REC inhibit sensor (7 or 8) :
• Check the applicable sensor located on HN-264
board.
• Check the sensor input circuit board (DR-307 board).
7S cassette REC inhibit switch
Sensor
HDW-F500E MMP1
1 to 6
Cassette tab sensors
123
45
6
4-3-2. SERVO SYSTEM Check
CH.COND
C A S S T T
S W
S ERVO CHEC K
C A S S T T
C M P S W C ASST TE S W
1:RE EL HU B
T P / E N D
3:TH ICKNE SS
S N S R
5:FO RMAT SENS 2
7:S REC I NHI
D E W
SW 8 76543 21
S N S R
0 00000 00
S R E E L T R E E L T H R E A D C A S S T T
M O T O R M O T O R M O T O R C O M P
8L cassette REC inhibit switch
Sensor
1Cleaning cassette tape
2Not used.
3Tape thickness sensor
4FORMAT SENS3
5FORMAT SENS2
6FORMAT SENS1
4-3. Maintenance Menu
SERV O CH ECK
TCR 00:0 1:02 :02
2:M ETAL / OX
4:F ORMA T SEN S3
6:F ORMA T SEN S1
8:L REC INHI
12 3
4 5
7 6 8
C A P S T N E X I T
M O T O R
4-17