Warning Codes; Lamp Failure - JVC BR-S822U Service Training

f something wrong occurs in operation, the cause is self- Memory switch No. 303 "WARNING INHIBIT is set to ON.
diagnosed and the result is displayed in characters in the For location of respective switches and sensors, see Fig.
monitor screen as well as in a number in the counter display. 4-2-4.
HOUR MINUTE SECOND FRAME 13
WARNING 73 (of
TU REEL MOTOR FAILURE
Warning indication in counter display
Warning indication in monitor screen
Warning Codes
warning ore On screen indication and detail Operation and result Detection manner
1E INVALID OPERATION S-VHS cassette detection switch is
(displayed for 2 sec) classified into two of;
eWhen S-VHS recording is in- | ¢ Deck enters PB mode. Full cassette SW @)
tended with VHS cassette. lf REC MODE SWITCH is C. cassette SWC)
switched over in the | When S-VHS cassette is inserted
recording mode, the set en- | into deck, pin62 of IC5 on M- CTL
ters Stop mode. & RSV board is "H' in level.
e When REC or AUTO EDIT button | ¢ Deck enters Stop mode or
is pressed with Memory switch PB mode.
No. 304 REC INHIBIT being turned
on.
01 © | LAMP FAILURE Deck stops all operations and | When the sensor LED (@)is burned
eWhen tape end/beginning sensor | does not accept further opera- | out, pin6)) of IC5 on M-CTL & RSV
lamp is burned out or wiring is | tional commands. board is "L' in level.
breaking.
02 © | CONDENSATION ON DRUM Cassette is ejected from deck. | Wnen output voltage (pin G6 of 1C2
e Moisture condensation on drum | After cassette ejection, drum | on M-CTL & RSV board) of the dew
and in transport revolves automatically and | sensor () is 3 V DC or higher, the
another cassette loading is | deck enters warning mode, while
inhibited until condensation | it proceeds to normal operation
has been eliminated. with voltage drop to under 2 V DC.
04 © | REEL SERVO FAILURE All operations stop and further | When pin of IC5 on M-CTL &
eWhen power (£12 V) for tape | operational command is not | RSV board is "H" in level, the deck
tension detection circuit is not | accepted. | enters warning mode.
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08 © | SUP TENSION FAILURE All operations stop and further | eWhen tension error voltage
e When something abnormal in the | operational command is not keeos the specified value for a
supply tension servo. accepted. certain period of time.
eWhen tape forwarding is 1.5
times as much as tape winding
in amount in the reel search
mede.