Kenwood KRC-2001 User manual

KENWOOD
KRG-200'
STEREO
CASSETTE
RECEIVER
Knob
Knob Knob
ob
Kn :
188804)
(K27-1581-04)
(K27-1580-04)
(K27-1579-04)
—
{K29-1
889-04)
Knob
Dressing
pane!
LCD
Assy
Knob
(K29-1888-04)
(A21-0493-03)
(B38-0066-05)
(K29-1888-04)
Heat sink
(FO1-0681-03)
E
'
2
e-
—-————-
Cord
with
connector
(E30-1430-15)
Cord with plug
(E30-1429-05)}
Cord with DIN
connector
(E30-1431-15)

ee
DISASSEMBLY FOR REPAIA
DISASSEMBLY FOR REPAIR
1.
Remove
4
screws
retaining
the
top
cover
and
pull
it
up
(0.8)
2.
Remove
4
screws
and
remove
bottom
plate
(‘O.
8)
3.
Remove
4
screws
and
remove
the
panel
assy
([email protected])
4,
Remove
4
screws
retaining
the
mechanism
and
pull
©
out the connectors (@,.@.@) ©
5. Remove the nuts from the axis and take off the solder
from the PCB and pull out the connector (@. @. ®)
more than
Tem

| KRG-2001_
DISASSEMBLY FOR REPAIA
6. Pull out the PCB from the bottom main PCB (®. @.
®)
7. Removes the screw of display assy ( (B ) and remove
six screws of heat sink( @& . )
Remove
the
screw
(
&®
)
and
pull
out
the
connector
®
(@ )
8. Remove the screws ( @) ) and( @ )

XIMLVW
Aa
ZLZLINW
Adv
ZHOOv
wy
ao7
=z
Y3TIONLNOD
Tid
"A8Q
ZH4
GL
‘ZH
L
W4
‘S47
(adv)
Augc
WV
AWip
WV
AWOLE
AW
oZ
W4
AUOPL
WI
AY
8Z
SaPOL—
AWTL
AdvL
AYLEL
3IdVL
sap
t€—
Nid
ds
()
dV
LNdLno
HATIONLNOO
YN
(-L
LX)
Got
[f
dy
03
H-
eae
(LEX)
£91
ma
=
Y¥aNNL
WV
dS)
¥yadvs
WaMOd
dINV
H3MOd
iv
3NOL
Q
bul
(-L
LX)
(-VLX)
2°
LOt
(-LLX)
994
(-L
LX)
vol
<I
XdN
130/dl
QN3
LNOY4
Wd
(-L
LX)
291
(-LLX)
LOI
BLOCK
LEVEL
DIAGRAM
AU
6S
AW
OO
sgP
SLE—
sap
GOt—
inv
ZN

) KRe-2001
CIRCUIT DESCRIPTION
Description of components.
CONTROL UNIT (X11-2230-10)
Components Application/Function _ Operation/Condition/Compatibility
Qi LO/DX SW
Q2 FM IF AMP
LOUDNESS SW
FM IF AMP/DET
FM MPX
NR
NR CONTROLL
DIN OUT AMP
TONE AMP
EQ AMP
SYNTHESIZER UNIT (X14-1870-10)
Application/Function Operation/Condition/Compatibility
AGC CUT
ee OT ey
|_a2_
|
~_STATION
DeTECT
|
Tuned
ONWhenthebroadcastsignalisreceved.
}__03,4
|
FM
BAND-WIDTH
SW
|
Tuned
ONwhen
SEEK
operation
seeking)
pa
OR
NS
ee
ee
i
OR
NETS
ee
eo
eel
|
os
ag
TUNER +B SW Turned ON when TAPE mode
FM +B SW
Q10 AM +B SW
Q11, 12 ACC AVR (+9 V)
Q13 TAPE +B SW
L.P.F DC AMP
BACK UP AVR (+5 V)
CE-CONTROL
MUTING
EQ MUTE DRIVER
TAPE MUTE DRIVER
MUTE DRIVER
MUTE DRIVER
AGC CUT
Turned. OFF when ACC is ON
For equalizer amp. Turned ON when Radio mode, FF/REW mode.
Turned ON when FF/REW mode
For power amplifier. Turned ON when ACC is ON.
MICROPROCESSOR
POWER AMP
(1/4) F/R indicator, (2/4) ST indicator, (3/4) STATION DETECT indicator,
(4/4) TAPE MODE indicator
(1/4) MEMORY switch, (2/4) MANUAL DOWN switch, (3/4) MANUAL UP switch,
(4/4) SEEK switch
AND IC
AND IC

KRC-2001
CIRCUIT DESCRIPTION
AND-GATE
FOR
CPU
KEY
MATRIX
OPERATION
DESCRIPTION
A PIN 7-—- GND
a
B PIN 14*--- Vpp (5 V)
— Vpp (5 Vv)
A
— OV
B
Qa
CPU Key Matrix Operation
The source clock from the CPU is input to A-input via the
AND-GATE at any time to apply the control signal to B-
input.
When the signal is input to B-input, the output Q goes
high and input as the CPU key input. When the B-input is
low level, output O is always low. Output Q is synchro-
nized with input A.

CIRCUIT DESCRIPTION
Synthesizer Unit u.-Com: «PD 1708G
FUNCTION OUTLINE
Receiving
frequency,
Channel
spacing,
Reference
frequency,
Intermediate
frequency
FM band
Frequency
range
Channel
spacing
Reference
frequency
Intermediate
frequency
87.9
~107.9
MHz
200
kHz
25
kHz
10,700
87.50~108.0
MHz
*
60
kHz
12.5
kHz
10,700
*
MANUAL
25
kHz
AM band
Frequency
range
Channel
spacing
Reference
frequency
Intermediate
frequency
530
~
1620
kHz
10
kHz
10
kHz
450
kHz
522~1611
kHz
9kHz 9kHz
450
kHz
163~281
kHz
*
QkHz
1
kHz
450
kHz
*
MANUAL
1
kHz
Tuning Function
{1) Auto Tuning (Sawtooth wave mode)
Seek Up: Once a station is tuned, it is held tuned.
(2) Manual Tuning (Sawtooth wave mode)
Manual Up/Down: Frequency is advanced up or
down in steps by pressing the
push switch.
Pressing for a half second or
more advances it up or down
continuously until the switch is
released.
(3) Preset Memory Recall
6 stations on each FM, MW, and LW band can be
preset independently with the 6 buttons. The last sta-
tion is stored in memory for each band when power is
turned off.
Tape Function
(1) Tape running indicator
(2) METAL control
(3)) DOLBY contro!
Radio Function
(1) LOC (local) contro!
(2) MONO control
Clock Function
(1) 12-hour display
Other Functions
(1) LOUDNESS control
(2) NR (noise reduction) control

KAC-2001
CIRCUIT DESCRIPTION
TERMINAL DESCRIPTION
Terminal Configuration (Top View)
[+7 26
a P)
7) 24
[+23
ees PY
uPD1708G-618-00 p21
(TOP VIEW) [_____} 20
[___}19
fT C—i*d‘O'V
dA
16
[715
14
Pin Name Pin Name
LCD4 KS, (PB,}
LCD3 KS, (PBo)
LCD2 BANDZ/N.R
LCDi METAL-LOC
COM2 LOUDNESS
COM1
5G |e |e |~|o lor] a] | |=
CE
*
Xl
XO
AF MUTE (PA3)
BAND 1 (PA,)
KS,/K; (PA,)
KS,/K, (PA,)
Ks
Ky
K,
Ko
KS, (PB,)
KS, (PB,)
8
*
Not
used.

Pin description
KRG-2001
CIRCUIT DESCRIPTION
Pin Name
Description
LCD segment signal
LCD segment signal output pin (1/2 duty, 1/2 bias LCD should be used. Frame
frequency: 100 Hz, Drive voltage: VDD)
LCD common signal
LCD common signal output pin
Power input
Device power supply pins
During device operation, 5 V + 10% voltage is supplied via these pins. Either of them
can be used for supplying the power individually. The rising time of VDD should be less
than 500 ms (0 to 4.5 V). When the rising time is too long, or when the VDD is not
lowered completely to O V and then raised to 4.5 V from the voltage lower than the
operating rate, the diode switch condition for initialization is not read out correctly. In
such cases, use the CE pin so that the diode switch status can be read out for
initialization.
FM VCO input
This pin inputs the FM station output signal.
Since it incorporates the AC amp, cut the DC signal with the capacitor.
AM VCO input
This pin inputs the AM station output signal.
Since it incorporates the AC amp, cut the DC signal with the capacitor.
Ground
Connect to the ground terminal of the set.
Error Out
AF MUTE
Charge pump output of the phase detector consisting of PLL. When the frequency
divided by the oscillating frequency is higher than the reference frequency, these pins
output high level signals, and when it is lower than the reference frequency, they go
low. When the frequency (divided by the oscillating frequency) is coincided with the
reference frequency, it enters into the floating status.
Chip Enable
Crystal resonator
Mute Out
This pinis used to input the selected signal from the device. When operating the PLL
section, this pin goes high, and when the PLL section is stopped, it goes low. When at
low level, the display goes off. However, a low level signal below 134 us or high level
signal is not accepted.
Connectors of the crystal resonator.
Connect the 4.5 MHz crystal resonator.
This pin outputs the muting signal to eliminate shock noise when the PLL is unlocked
and pop noise when switching between Tape and Radio, and is active low.
(CMOS output)
For timing details, refer to the AF Mute Out Timing Chart. When the CE pin is low, this
pin is active low.
Band Out
FM/MW switching output pin
FM: High
MW: Low
When the MODE switch is set to “1” (Tape mode), this pin is low.
When the SDK is provided, follow the SDK section.
Key return signal source and
Key return signal input
This becomes the source of key return signal to read out the diode matrix for
initialization only when the power is turned on for the first time (rising time of VDD} or
when the set is returned from the back-up condition (CE: Low to High).
Then, this inputs the key return signal for the key matrix. Insert the pull-down resistor.
(CMOS input /output)
Key return signal source and
Key return signal input
This becomes the source of the key return signal to read out the diode matrix for
initialization only when the power is turned on for the first time (VDD rising time) or
when returning from the back-up condition (CE goes high from low).
Then, this inputs the key return signal for the key matrix. Insert the pull-down resistor.
{CMOS input /output)
Key return signal input
This pin inputs the key return signal for the key matrix. Insert the pull-down resistor.
(CMOS input)
Key return signal source
This pin outputs the key return signal for the key matrix.
Since the synchronous current is greatly lowered because of its configuration, the
reverse-current prevention diode will be not necessary for the key source side.
(CMOS output)
METAL/DX/LOC | LOC Out
In radio mode: DX/Local On/Off output pin
When “LOC” is displayed on the LCD panel, high level signal is output. When it is not lit,
low level signal is output. (When the power is turned on, low level status is initialized.)
In tape mode: METAL On/Off output pin
When “METAL” is displayed on the LCD panel, low level signal is output. When it is not
lit, high level signal is output. On initialization when the tape power is turned on, high
level is output.

10
CIRCUIT DESCRIPTION
Pin Name
Symbol
Description
LOUDNESS Loudness Out
LOUDNESS output pin
When
“LOUD”
is
displayed
on
the
LCD
panel,
low
level
signal
is
output.
When
it
is
not
lit,
high
level
signal
is
output.
When
the
power
is
turned
on
first
(VDD
rising
time),
low
tevel
signal
is
output.
(CMOS output)
BAND2/NR
When Band A is “0” or “1” and the NR selector is “1”, this
functions as the NR on/off output pin. When “NR” is dis-
played on the LCD panel, high level signal is output.
When it is not lit, low level signal is output.
This pin.can be operated in the TAPE/RADIO mode.
On initialization when the power is turned on, this pin is at
low level.
When BAND A is “0”, “1” and the NR selector is “O”, this
function as the WIDE-ADV on/off output pin.
@ Inthe Radio mode:
This functions as the WIDE on/off output pin.
When “WIDE” is displayed on the LCD panel, high level
signal is output, and when it is: not lit, low level is
output.
DOLBY output pin
When
“DOLBY”
is
displayed
on
the
LCD
panel,
high
level
signal
is
output.
When
itis
not
lit, low level signal is output.
On
initialization
when
the
power
is
turned
on,
low
level
is
output.
@ Inthe Tape mode:
This functions as the ADV on/off output pin.
When “ADV” is displayed on the LCD panel, high level
signal is output, while it is not lit, low level is output.
On initialization when the power is turned on first, it is
at low level.
When BAND A is “0” and the NR selector is “O” (SDK oper-
ation is normal only when in this status), and BAND B is
“1”, this pin functions as the BAND 2 output. BAND 2 be-
comes the band switching output port in combination
with BAND 1.
Output
BAND 1 BAND 2
ee
ee Ne

mS KAC-2001
CIRCUIT DESCRIPTION
1. KEY MATRIX CONFIGURATION
1-1. Key Matrix Layout
The SSS in the SSS shows the pin no.
L | : Momentary switch
: Alternate switch or transistor switch
Zi
:
Diode
matrix
(ieee
suaned
by
diode)
- 1-2. Switch Connection
Momentary
switch
Alternate
switch
Diode
matrix
or
open
Transistor
switch
Kn
Kn
Kn
Vop
Kn
KSm KSm KSm—— KSm
i
11

KRC-2001
CIRCUIT DESCRIPTION
1-3. Key Matrix Connection
: Momentary switch
:
Alternate
switch
or.transistor
switch
: Diode matrix
oo >
wPD1708G-018-00
or
pPD1708G-218-03
KS,/K, KS,/K,
12

KRG-2001
CIRCUIT DESCRIPTION
2. KEY MATRIX DESCRIPTION (1) The switch for setting the receiving frequency range
and the channel spacing:
2-1. Diode Matrix for Initialization BAND A
The diode matrix for initialization has the following five
status. All status is read out only when the power is sup- (2) Clock signal select switch:
plied to the Vpp for the first time (Power-ON, Reset) and CLKSEL
when the CE pin goes high from low level (CE Reset), in
another
periods,
the
diode
matrix
status
is
ignored.
(3)
Priority
select
switch
for
display:
PRIORITY
(4) —
(5) NR select switch:
NR SEL
(6) CLOCK/FREQUENCY select switch:
CLOCK/FRO
(7) LW select switch:
BAND B
Symbol Function Description
This switch is used for setting the receiving frequency range for each FM/MW/LW band channel spacing. Each setting
status is as follows:
BAND A BAND A Frequency Range Channel Spacing Manual Step :
| 1 | 87.9~107.9MH2 2oorkz | =
| 1 | s30~te20KH | torte |
| o | 87. p 25kHe |
522~1611 kHz
When the clock function is provided, this switch selects the priority mode for display.
When the display which does not have priority is recalled, the mode having priority will be displayed after approx.
PRIORITY 5 seconds.
“1: No priority ; :
“0”: Priority is provided. ,
g75~1080MHz | — SOkHz
: Select switch to provide the clock function or not.
CLKSEL “1”: Clock is not provided (For back-up, RAM is not cleared)
; “0”: Clock is provided.
Select switch to provide the NR (noise reduction) function.
“0”: NR is not provided (WIDE-ADV and BAND 2 output pin)
“1: NR provided
Select switch to provide priority to the clock or frequency for display (Depending on PRIORITY)
CLOCK/FRQ “O": Frequency
“1: Clock
Switch to access the preset memory (M1 to M6) sequentially
“0”: M1 to M6 keys are preset independently
“1”: Each time the M1 key is pressed, preset memory is sent sequentially
CM Mey
13

KRG-2001
CIRCUIT DESCRIPTION
2-2. Mode Select Switches
Unlike
the
initializing
switches,
these
switches
can
be
changed
at
any
times.
(On
the
following
table,
“1”
shows
switched
ON,
“O”
shows
switched
OFF)
Function Description
Set the unit to RADIO mode or TAPE mode.
“1°: TAPE mode
“O": RADIO mode
In the RADIO mode:
This is the Station Detector input in SEEK or SCAN mode.
SD
This
should
be
set
to
OFF
within
approx.
50
ms
after
the
PLL
is
locked.
When
every
times
are
OFF
by
detecting
the
station
every
1
ms,
the
station
is
recognized
as
received
and
the
seeking
or
scanning
operation
stops.
In the RADIO mode: (Only for FM reception)
Stereo signal input switch.
When
this
switch
turns
OFF,
“ST”
is
displayed
on
the
LCD
panel.
However,
“ST”
goes
off
in
the
Auto
Tuning
mode
(AF.
MUTE
pin
is
active)
even
if this
switch
is
OFF.
STEREO
In the Tape mode:
Tape running direction indicator input switch.
When
this
switch
turns
ON,
the
“REV”
(<4)
is
displayed
on
the
LCD
panel.
When
it
tums
OFF,
the
“FOW"
(bP)
is
displayed,
This
switch
functions
only
when
the
CE
pinis
high
and
the
MODE
switch
is
“ON”
(Tape
mode).
FOW/REV
2-3. Momentary Switches
Symbol
Function
Description
These keys are used for manual tuning and time adjustment.
@ Frequency display
Each
time
the
key
is
pressed,
the
displayed
frequency
is
advanced
up
(by
MU
key)
or
down
(by
MD
key)
by
1
step
(channel
spacing
set).
When
it
is
pressed
for
a
half
second
or
more,
the
frequency
is
advanced
rapidly
(continuously)
until
itis
released.
,
@ Clock (time) display
While
pressing
the
ME
key,
press
the
MD
key
to
adjust
the
time,
and
press
the
MU
key
to
adjust
minutes.
In the Radio mode:
These
keys
are
used
to
write
or
recall
the
preset
memory.
FM,
MW
and
LW
bands
can
be
stored
independently
into
each
key
inmemory.
(1) When writing
With
the
frequency
display,
within
five
seconds
after
pressing
the
ME
key,
press
one
key
(M1
to
M6),
to
store
the
fre-
quency currently received into'memory.
(2) When recalling
When
one
key
(M1
to
M6)
is
pressed,
the
memory
content
(frequency)
corresponding
to
the
key
pressed
is
recalled,
When
the
radio
is
turned
on
after
the
VDD
is
first
turned
on,
the
lowest
frequency
on
the
FM
band
is
recalled.
When
shipped,
the
following
frequencies
are
preset
into
M1
to
M6
key
for
adjustment
at
the
factory.
87.9~107.9 MHz
87.50~108.00 MHz
530~1620 kHz
522~1611 kHz
14
|
y.

Y KRC-2001
CIRCUIT DESCRIPTION
Function Description
Symbol
These keys are used to write and recall the preset memory.
Each FM, MW and LW frequency can be stored into one key in memory independently.
However, the number of available bands differ with the area designated by the initializing diode matrix, as follows:
For the area only 2 bands are available: 6 stations * 2 = 12 stations
For the area 3 bands are available: 6 stations X 3 = 18 stations
Corresponding to the preset key pressed, the ‘CH’ indicator and‘* ” (channel number) are displayed on the LCD panel.
Mi
5
M6
These keys are used for automatic tuning. During auto tuning operation, when the SD switch is turned OFF, the frequency
displayed at the time is kept on hold.
In auto tuning mode, the auto tuning operation is continued even when the LOUDNESS, ME, NR, METAL-DX/LOC, or
MONO-DOLBY key is pressed.
When one of the other keys is pressed, the auto tuning operation is stopped, and the unit enters the operation of the key
pressed.
When the SEEK key is pressed again, the frequency before the SEEK operation is resumed.
This key is used to select the function between DX/LOC — MTL.
@ Inthe Radio mode:
Each time the key is pressed, the LOC output pin and the “LOC” display on the LCD panel are inverted. When the “LOC”’
display on the LCD panel, high level signal is output from the LOC Out pin, and when it is not lit, low level is output.
@ Inthe Tape mode: .
Each time the key is pressed, the LOC output pin and the “MTL” display are inverted.
When the “MTL” is displayed on the LCD panel, low level signal is output from the LCD Out pin, and when it is not lit, high
level is output.
By initialization when the power is turned on, high leve! signal is output.
SEEK UP/DOWN
DX/LOC
—MTL
This key is used for writing the preset memory. It is also used for adjusting the time on clock display.
@ Frequency display:
Used when writing a new frequency into the preset memory. When this key is pressed, the ‘‘ME” is displayed on the LCD
panel, and lit for five seconds after the key is released. While the “ME” is lit, pressing one key (M1 to M6) stores the
displayed frequency into memory corresponding to the key pressed.
To cancel the preset memory, while the “ME” is lit, press any key other than ME, NE, METAL-DX/LOC, MONO-DOLBY, or
LOUDNESS.
® Clock display:
The “hour” and ‘“‘minutes” can be adjusted by pressing the MD or MU key while pressing the ME key.
After pressing the ME key, each time the MD key is pressed, the “‘hour’’ is advanced one by one. Pressing it for a half second
or more advances the time by 4 hours/sec continuously until the MD key is released. This operation does not affect the
“minute” or “second” digits (they are not displayed during this operation).
After pressing the ME key, each time the MU key is pressed, the ‘“minute”’ is advanced one by one. Press it for a half second
or more advances the minute in 8 minutes/sec speeds continuously, unti! the MU key is released. The “second” is not
displayed, however, it is reset to zero every time the “minute” is set. The ‘‘minute” adjusting does not affect the “hour”.
(“Hour’ is not changed even when the “‘minute’’ exceeds 60.)
(During clock display, pressing the ME key alone changes the display to frequency and “ME” is displayed. In this condition,
pressing one of the preset keys (M1 to M6) stores the frequency into the memory corresponding to the key pressed.)
This key is used to select the band.
When Band A is “O” or “1” and Band B is “0” (LW: Not available) . . .
Each time this key is pressed, the band is changed in the order of FM — MW — FM...
Used for Loudness select key.
Each time this key is pressed, the loudness output pin and the “LOUD” display on the LCD panel are inverted. When the “LOUD”
is displayed on the LCD panel, low level signal is output from the Loudness pin and when it is not lit, high level is output.
By initialization when the power is first turned on {rising time of VDD), “LOUD” is displayed and low level is output.
LOUDNESS
15

KRE-2001 |
16
CIRCUIT DESCRIPTION
Function Description
Display select key. Available only when in the-radio mode.
When
this
key
is
pressed,
the
display
is
changed
from
the
clock
display
to
frequency
or
vice
versa.
However,
five
seconds
after
the
key
is
pressed,
the
display
is
restored
to
the
priority
mode
(depending
on
the
diode
matrix
PRIORITY).
When the clock is not provided (CLKSEL=0), this key has no effect.
However,
the
clock
display
is
resumed
by
the
PRIORITY
switch
when
the
display
priority
is
provided.
a) ON: Priority is provided
b) OFF: No priority
(1) NR key (RADIO/TAPE common key)
(2) WIDE-ADV key (Independent RADIO/TAPE key)
(1) NR key:
BAND A: “0”, 1”
NR SEL: 1" With the above status, this key is used as the NR select key.
Each
time
the
key
is
pressed,
the
BAND2/NR
output
pin
and
“‘NR”
display
on
the
LCD
panel
are
inverted.
When
“NR”
is
displayed
on
the
LCD
panel,
the
BAND2/NR
pin
outputs
the
high
level,
and
when
the
display
is
not
lit,
low
level
is
output.
(By initialization when the power is turned on, it outputs low level.)
(2) WIDE-ADV key:
BAND A: “0”, "1°"
NR SEL: “1”
With the above status, this key is used as the WIDE-ADV select key.
In the Radio mode:
Used
as
the
WIDE
select
key.
7
Each
time
the
key
is
pressed,
the
BAND2/ADV
output
pin
and
the
“WIDE”
display
on
the
LCD
panel
are
inverted.
When
the
“WIDE”
is
displayed
on
the
LCD
panel,
the
BAND2/ADV
pin
outputs
the
high
level,
and
when
the
display
is
not
lit,
low
level
is
Output.
On Tape mode:
Used as the ADV select key.
Each
time
the
key
is
pressed,
the
BAND2/NR
output
pin
and
the
“ADV”
display
on
the
LCD
panel
are
inverted.
When
the
“ADV”
is
displayed
on
the
LCD
panel,
the
BAND2/NR
pin
outputs
the
high
level.
When
the
display
is
not
lit,
the
low
level
is
output.
{By initialization when the power is turned on, low level is output.)
Note:
When
the
following
status
is
selected
in
the
diode
matrix,
the
NR
key
and
the
WIDE-ADV
key
are
not
effective.
NR SEL: “0”
BAND A: “0”
BAND B: “1”
This
key
is
used
for
setting
the
received
frequency
range
for
FM/MW/LW
band
and
the
channel
spacing.
1.
By
initialization
when
the
power
is
turned
on,
the
receiving
frequency
and
channel
spacing
are
registered
by
the
diode
of
BAND
A.
Then,
when
the
CE
pin
goes-*L"’—"‘H“or
vice
versa,
they
follow
the
diode
of
BAND
A.
2.
When
the
CE
pinis
inverted
to
high
from
low
while
pressing
the
M5
key
and
the
BAND
key
together,
the
band
setting
of
BAND
A
is
changed
from
“1”
to
“O”
or
from
“0”
to
“"1"".
Then,
when
the
CE
pin
is
inverted
toc*L"’—>“H’4or
vice
versa,
the
changed
area
setting
is
maintained.
3.
When
the
CE
pin
is
inverted
from
low
to
high
while
pressing
the
M5
key
and
BAND
key
together,
the
band
setting
follows
the
diode
of
BAND
A.
Then,
when
the
CE
pinis
inverted
fromL’’—“H“or
vice
versa,
it
follows
the
diode
of
BAND
A,
too.
4.
To
change
the
setting
by
the
M5
key
and
the
BAND
key,
repeat
procedure
2
and
3.
Note:
On
initialization
when
the
power
is
turned
on,
the
M5
key
and
the
BAND
key
are
ignored
even
when
they
are
pressed,
and
the
setting is followed to the diode.
M5 BAND

Set the controls and switches as follows.
BALANCE :center position
FADER :center position
BASS scenter position
TREBLE :center position
ITEM
LOUD
T+ ADY
METAL
DOLBY NR :
INPUT
SETTINGS
OFF
: OFF
OFF
OFF
ADJUSTMENT
LOCAL
AUTO
OUTPUT
SETTINGS
OFF
: OFF
TUNER (RECEIVER)
SETTINGS
ALIGNMENT
POINTS ALIGN FOR
SECTION
(A) Connect the
98. 1MHz DC voltmeter FM
0 dev between pins 98. 1MHz
60dBCANT input) of TP1
(A) Connect the
98. 1MHz frequency FM
0 dev counter pins 98. 1MHz
60dBCANT input) of TP2
(C)
98, 1MHz
lkHz,#67.5kHz dev (B)
Selector:L or R
60dB(ANT input)
CA)
98. 1MHz FH
0 dev 98, 1MHz
20dBCANT input)
(A)
98. 1MHz FH
1kHz,275kHz dev 98. 1kHz
BOdBCANT input)
ANT OPEN FM
(No_signal) 98. 1kHz
DISCRIMINATOR
19, 00kHz
Adjust it so that the
FH crosstalk from L to R and
98. 1MHz R to L become minimum,
SEPARATION
STOP LEVEL
{__
SOFT MUTE
Set the volume to 0 dBs,
SOFT MUTE
| VRi
990kHz AM vR1
~ 25dBs
-_—_i__
@)
STOP LEVEL 400Hz,30% mod 990kHz (X14) STOP
38dBCANT input)
SSETTE DECK SECTION
zo
Adjust the azimuth for each |
L-CH/R-CH or FOW/REV
becomes maximum,
Head
Azimuth
Screw
TAPE PLAY
AZIMUTH MTT- 114 (10kHz)
17

REGLAGE
Regler les controles et les boutons comme suit.
BALANCE :position centre LOUD :OFF LOCAL : OFF
FADER :position centre T- ADV :0FF AUTO :OFF
BASS :position centre METAL :OFF
TREBLE :position centre DOLBY NR :OFF
REGLAGE DE REGLAGE DE REGLAGE DU TUNER POINTS DE
ITEM L’ ENTREE LA SORTIE CAMPLI-TUNER) | L’ ALIGNEMENT ALIGNER POUR
CTION MF
Raccorder le
CA) volimetre CC
DISCRIMINATEUR 98, 1MHz entre les deux Fi
0 dev broches de 98, 1MHz
60dBCEntree ANT) TPL
(AD Raccorder le
98, MHz compteur de
0 dev frequence aux 19, 00kHz
60dBCEntree ANT) | broches de TP2
(C)
98, MHz Le regler de maniere
SEPARATION 1kHz.267,5kHz dev (B) FH a ce que la diaphonie
Selecteur:L ou R 98, 1MHz deLaR et de Ra L
60dBCEntree ANT) devienne minimum.
CA)
NIVEAU 98, \MHz FM
D’ ARRET 0 dev 98, LMHz ARRET
20dB(Entree ANT)
(A)
98, 1MHz FH
SILENCIEUX DOUX LkHz.275kHz dev 98, MHz Regler le volume a 0 dBs.
(1) 60dBCEntree ANT)
SILENCIEUX DOUX Quvrir 1’ antenne FM
(pas de signal) 98, 1MHz — 25dBs.
(D)
NIVEAU 990kHz AX
D’ ARRET 400Hz. 30% mod 990kHz
38dBCEntree ANT)
CTION DU MAGNETPHON
—T
Ajuster 1’ azimut pour que
AZIMUTH MTT- 114 Lecture bande Vis d’ azimut de chaque L-CH/R-CH ou
(10kHz) tete FOW/REY devienne maximum.
18
/

KRG-2001 KRG-2001
ABGLECH ADJUSTMENT/REGLAGE/ABGLECH
Die Regler und Knopfe wire folgt einstellen.
BALANCE :Mittelage LOUD : OFF LOCAL : OFF
FADER —-:Mittelage T+ ADV :OFF AUTO SOFE
BASS :Mittelage METAL :OFF
TREBLE :Mittelage DOLBY NR :OFF
EINGANGS- AUSGANGS- TUNER CRECEIVER)- ABGLEICH
GEGENSTAND EI NSTELLUNG EINSTELLUNG EINSTELLUNG PUNKTE ABGLEICHEN FuR
WOABTEILUNG
w
;
Den Gieichstron-
(A) Voltmeter
98, 1MHz zwischen den ) (c)
DISKRIMINATOR
0
Hub
beiden
Stif-
.
60dBCANT- Eingang) ten von TPL
anschliegen. (D)
(A) Den Frequenzzahler
98, 1MHz an die Stifte FM
0 Hub von TP2 98, IMHz 19, O0kHz
60dBCANT- Eingang) anschliegen,
(Cc)
98, 1MHz So einstellen, dag das
STEREO KANAL 1kHz.#67,5kHz Hub (B) : FM wbersprechen von
TRENNUNG Wahler:L oder R 98, 1MHz L auf R und
60dBCANT- Bingang) von R auf L minimal wird.
aii
(8)
a
|
98,
1MHz
FM
a
:
HALT PEGEL 0 Hub 98, LMHz HALT vanes Oscilloscope E
20dBCANT- Eingang) Wechselspan- Oscilloscope ° r
(C) nungsmesser 2 ae z
Weiche
Dampfung
98,
1MHz
FM
Die
Lautstarek
i
qd)
1kHz.275kHz
Hub
98,
1MHz
auf
0
dBs
einstellen.
|
60dBCANT- Bi ngang)
Weiche
Dampfung
|
Die
Antenne
offnen
FH
Speaker
|
(2) (Kein Signal). 98, IMHz ;
to ANT
-ABTEILUNG
(D)
990kHz MY
HALT PEGEL 400Hz. 80% mod 990kHz
38dBCANT- Bingang)
SSETTEN-DECK-—-ABTEIL
So einstellen, dag das
Azimuth fur jeweils
AZIMUTH MTT- 114 (1 0kHz) Bandwiedergabe Kopfazimutschraube | ~ L-CH/R-CH oder
FOW/REV maximal wird.
(f) VR1 SOFT MUTE
AM STOP LEVEL
DISCRIMINATOR
(c) VR4 SEPARATION
e
a
(b) VR5 vco
(h) Head Azimuth Screw
19

20
&
0. bE oF
z a.
77) & 6 wee a
« ve 9° zs Ga uw
rr cc a of 4
el
a)
ao} of =| [fx] 3] «= e] )&
2} §| SLUS a) 2 3| 3
~)
WHT
5
CONTROL (X11-2230-10 B/5)
KRC-2001 KRG-2001
PC BOARD
DIN
cE
GND
LR SP
Component side view
SYNTHESIZER (X14-1870-10)
3! 3
JT
BRN
RED 1
oO ORG
76
_
Zz
oO
ac
Le
XII C/5
CONTROL (X11-2230-10 C/5)
in C23
°
Ql
B38-0066-05
LCD ASSY
CONTROL (X11-2230-10 A/5)
Component side view
ANT
PLAY/BACK HEAD
CONTROL (X11-2230-10 D/5)
Refer to the schematic diagram for the values of resistors and capacitors.
The PC board drawing is viewing from the side easy to check.