Adjustment - Pioneer CT-L5 Service Manual

CT-L5

6. ADJUSTMENT

For adjustment, use the CD RECEIVER (XC-L5).
6.1 Test Mode
There are two test mode: test mode 1 for execution of special operations and test mode 2 with LINE MUTE operation in the same way as for
the deck by itself.
6.1.1 Test Mode 1
7 How to enter into Test Mode 1
In case of system operation ........
Receive "A15F" (bus data 1C5F) with the remote
control or switch on the power with the TEST
MODE JP [W101 (GNDD) and W103 (TEST)] of
the MAIN UNIT short-circuited (pin 44 of the
microcomputer connected to GND).
(Refer to Fig. 6-1.)
In case of single operation ........
Connect part A of the MAIN UNIT [W107,W113
(GNDA), W112 (GNDD) and chassis (KN2001)],
short-circuit the TEST MODE JP [W101 GNDD)
and W103 (TEST)] (pin 44 of the microcomputer
connected to GND), and supply DC power to part B
[TC+ (10 V), TC- (-10 V) and V+5.6 (+5.6 V) of
CN2601]. (Refer to Fig. 6-1.)
When test mode is entered, "TEST3" is displayed and the "PLAY" and "REC"
LEDs flash.
7 Operation of test mode 1
(1) When the power is switched on, cassette mechanism switch
check mode is entered and the CD RECEIVER (XC-L5) on the
displays the following.
REV REC SW
ON: REV recording
OFF:
FWD REC SW
ON: FWD recording possible
OFF:
HALF SW
ON: Tape present
OFF: Absent
TAPE TYPE
NORMAL
(2) When the "RECORDING PAUSE" key is pressed, the mode for
opening of LINE MUTE is reached, and when it is pressed
again, automatic recording and playback mode is reached and
the following operation is performed.
22
TEST MODE
W101
W103
Short point
possible R
Impossible –
F
Impossible –
H
–
(TYPE I) 1
CrO2 (TYPE II) 2
+5.6V
B
CN2601
CN2601
Pin 7 ...... +5.6V
Pin 9 ...... –10V
Pin10 ...... GND
Pin11 ...... +10V
MAIN UNIT
1 FUNCTION is set to AUX.
2 FWD recording is performed for 4 sec.
3 REV recording is performed for 4 sec.
4 FWD playback is performed for 4 sec. (Function becomes
TAPE), and the unit stops.
LINE MUTE opens in REC condition.
(3) The keys "PLAY", "FF", "RWD" and "STOP" operate normally,
and return to cassette mechanism switch check mode is made
with the "OPEN/CLOSE" key.
(4) "DOLBY" ON/OFF check mode is made with the "ASES" key.
(5) When abnormal operation is detected, the corresponding code
will be displayed on the
01 ........ The head does not move up.
02 ........ The head does not move down.
03 ........ The tray does not close.
04 ........ The tray does not open.
7 Cancellation of test mode 1
Press the "STANDBY/ON" key or disconnect the AC power
supply.
REAR
–10V
+10V
Fig. 6–1
Error Code
A