Test Mode; Checking The Items Of Test Mode - Sony TC-TX313 Service Manual

QQ
3 7 63 1515 0

2-1. CHECKING THE ITEMS OF TEST MODE

The set allows you to check the items of the test mode although this
may not be directly related with the adjustment.
1 Setting/Releasing the Test Mode:
1) Setting
With power OFF, short between test pin 1 and pin 2 of
CN09 on the LOW-VOLTAGE board. (See page 15.)
Then, turn power ON to enter the test mode.
2) Releasing
Open between pin 1 and pin 2 of CN09.
2 Items of Test Mode
1) Memory Stop
1-1) In side A record mode, press the REW ( 0 ) button.
The tape is rewind to the start point of recording and stopped.
1-2) In side B record mode, press the FF ( ) ) button.
The tape is rewind to the start point of recording and stopped.
2) Memory Play
2-1) In side A record mode, press the FWD Auto Play
( " + 0 ) buttons simultaneously. The tape is rewind to
the start point of recording and FWD played.
2-2) In side B record mode, press the REV Auto Play
( " + ) ) buttons simultaneously. The tape is rewind to
the start point of recording and REV played.
TE
L 13942296513
www
.
http://www.xiaoyu163.com
SECTION 2

TEST MODE

x ao u163
y
i
– 4 –
http://www.xiaoyu163.com
2 9
8
3) All LED Flickering
When no tape is inserted, all LED indicators are flickering.
4) Aging Operation
When tape with record erase preventing claw is inserted for
both sides A and B, enter the aging operation start command
by pressing p and CD SYNC simultaneously. The system
will change the direction to one side and perform the
following operations:
1 Rewind in REW mode until side A of tape is stopped.
2 Playback tape in FWD mode for 1 minute.
3 Pause mode.
4 Record tape for 3 minutes.
5 Forward tape in FF mode to the end of side A of tape.
6 Shut off and switch to side B.
7 Playback tape in REV mode for 1 minute.
8 Pause mode.
9 Record tape for 3 minutes.
!º Forward tape in FF mode to the end of side B of tape.
!¡ Shut off and switch to side A.
!™ Repeat the procedure from 2 to !¡.
!£ Pressing the STOP ( p ) button will release the set from
these operations.
Q Q
3 6 7 1 3 1 5
co
.
9 4 2 8
0 5 8 2 9 9 4 2 8
m
9 9
9 9