l
SERVICE PROCEDURE
1. Tracking point memory
This service procedure can be used for measurement of the tuner circuit.
With the POWER ON, press the
"PRESET UP" button while pressing the "MEMO" button for at
least 3 seconds or more.
FLO
will display "TRACKING". Frequencies will be memorized as
follows:
VERSION
P1
FM
90.0
SCAN STEP
P5
P6
P7
PB
pg
PlO
Pll
P12~
P30
10
KHz
600.0 1000.0
1400.0
520.0
+-
+-
+-
+-
MW
9 KHz
603.0
999.0 1404.0
531.
0
+-
+-
+-
+-
LW
t
t
t
171.
0 207.0
270.0 152.0 531.0
2. FLD segment illumination
This service procedure will illuminate all segments by the following steps :
With the POWER ON, press the
"FM/AM(TUNER)" button while pressing the "MEMO" button for
at least 3 seconds or more. This procedure takes 1 minute and 40 seconds to finish; at this point
the procedure is complete.
1.
All segments will be illuminated for 5 seconds.
2.
At the grid
"1
G", segments are illuminated
in
the following order:
CD
KHz
-+
CV
MHz
-+ @ R -+ @
PEAK
-+ @ L -+ @
MULTI
-+
(J)
MONO
-+ @
MATRIX
-+
®
HALL
-+
@)
P-SCAN
-+
(U)
TAPE
-+
@)
COPY
-+
@)
VCR1
-+ @
SLEEP
-+ ®
DISP
-+
®l
TX
3.
At the grid "2G", to
"11
G", each segment is illuminated individually.
4. At the grid "12G", segments are illuminated
in
the following order:
CD
VISUAL-+
CV
SIGNAL
LEVEL-+@
CH-+@
SIGNAL
BAR
(LEFT
SIDE)
-+
@
SIGNAL
BAR
(2nd
LEFT)
-+@
SIGNAL
BAR
(CENTER)
-+
(J)
SIGNAL
BAR
(2nd
RIGHT)
-+
@
SIGNAL
BAR
(RIGHT
SIDE)
-+®STEREO-+@)
THX
CINEMA-+
(U)
PRO.LOGIC-+
@ MOVIE-+@)
AUTO
MEMO-+@ 3.LOGIC-+ ® SIMUL'D-+
®SURROUND
3. Selector check mode
This service program automatically operates input selector and surround mode by the following
procedure. This service program continually repeats until power is shut off.
When the POWER ON, press the
"SURROUND MODE+" button while pressing the "MEMO" button
3 seconds or more.
STEP
INPUT DSP
FM
MODE
FREQUENCY
COPY SWITCH
NOTES
SELECTOR MODE BAND
TAPE
VCR1
1
FM
STEREO
AUTO
98.0 SOURCE SOURCE
2
FM
STEREO MONO
LAST
t
t
3
CD
THX
AUTO LAST
t
t
4
TAPE1 P-LOGIC AUTO
LAST TUNER SOURCE TUNER-ON
5
TAPE2 MOVIE AUTO
LAST SOURCE
TV
6
TV
3CH
AUTO
LAST
t
SOURCE
7
TV
HALL AUTO
LAST CD
LD
8
LD
MATRIX AUTO LAST TAPE2 TV
9
VCR1
MONO AM/MW
1000/999
TUNER
VCR2
10 VCR2 STEREO AUTO 98.0 TUNER SOURCE
TUNER-ON
11
AUX THX AUTO LAST SOURCE AUX
4.
All clear
This service program can clear all memorized operations and functions.
When the POWER ON, press the
"CLEAR" button while pressing the "MEMO" button 3 seconds or
more. FLO shows
"CLEAR MEMO" and powe! will be OFF.
TEST EQUIPMENT REQUIRED
1)
AM/FM Signal Generator
2) Video Signal Generator
3)
Digital Multimeter
4) Distortion level meter
ALIGNMENT PROCEDURES
1 FM MONO
D"
tort"on Adjustment
IS
I
I
!
Step
Input Signal Source Signal
Source Signal
OutpJ.1
Level
Reception
Adjustment Adjustment
Connection Frequency
and Modulati
.n
Frequency
Point
Value
I
500 uV/m (54 dB/m)
Signal generator output to
MONO 1
KHz/
98MHz
Distortion level
1
FM
antenna terminal. (75
98MHz
Dev.40KHz
53.3%.
(P2)
L201
Minimum
ohm) MONO
1KHz/
:
at TAPE-OUT
Dev. 75KHz 100%
~
I
2. FM Muting Level Adjustment
I
Turn variable resistor R212 and stop at position "TUNED" is not shown' (not indicated), then again turn the
variable resistor
R212 to the opposite revolution and stop at a position ["TUNED" is shown.
I
'·
Step
Input Signal Source Signal Source Signal
Outp~t Level Reception
Adjustment Adjustment
Connection
Frequency and Modulation
Frequency
Point Value
10 uV/m (20 dB/m)
Signal generator output to MONO 1
KHz/
98MHz
"TUNED"
1
FM
antenna terminal. (75
98MHz
Dev.40KHz 53.3% 0
(P2)
R212
indicate on FLD
ohm)
MONO
1KHz/
..
Dev. 75KHz 100%
--
Over mentioned level
AUTO SCAN Only Confirm
"TUNED"
2
+3d8
indicate on FLD
3. FM STEREO Distortion Adjustment
Adjust the L channel with the
RF
signal modulated only L channel first and confirm the R channel with the RF signal
modulated only
R channel.
Step
Input Signal Source Signal
Source Signal Output Level
Reception Adjustment
Adjustment
Connection
Frequency and Modulation
Frequency Point Value
500 uV/m (54 dB/m)
Signal generator output to
L+R 1KHz /
98MHz
IFCOIL
Distortion level
1
FM
antenna terminal. (75
98MHz
Dev. 40KHz 53.3%
(P2)
in
Minimum
ohm)
PILOT 19KHz /
FRONT END at TAPE-OUT
Dev.
6KHz8%
......._
•
L+R
1KHz/
Distortion level
2
Dev. 67.5KHz 90%
R218
Minimum
PILOT 19KHz /
Dev. 6.75KHz 9%
4D
atTAPE-OUT
REMARK: Adjustment with R128 is not necessary when the distortion level is less than 0.5% with adjusting IF coil.
4. FM STEREO Separation Adjustment
Step
Input Signal Source
Signal
Source Signal Output Level Reception
Adjustment Adjustment
Connection Frequency
and Modulation Frequency
Point
Value
Signal generator output to
same specification as Output level
FM STEREO dist9rtion
98MHz
Minimum
1
FM
antenna terminal. (75
98
MHz
adjustment. (P2)
R211
at TAPE-OUT
ohm)
Input only
L channel. channelR
-
same specificatiqn as
Output level
98MHz
FM STEREO distortion
98MHz
R211
Similar as
Reh
2
adjustment.
(P2)
at TAPE-OUT
Input only
R channel.
channel L
7
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