Pioneer RS-K1 User manual

®) PIONEER’
The Art of Entertainment
Service
Manual
OPTICAL DIGITAL REFERENCE SYSTEM
SYSTEM CONTROL TUNER/DECK
UC, ,.EW,ES
NOTE:
@See
the
separate
manual
CX-156(CRT-468)
for
the
cassette
mechanism
description.
@RS-K1/UC
| O
ORDER NO
ee]
CRT1533
@Dolby
noise
reduction
manufactured
under
license
from
Dolby
Laboratories
Licensing
Corporation.
“Dolby"
and
the
double-D
symbol
are
trademarks
of
Dolby
Laboratories
Licensing
Corporation.
@This
device
employs
an
inverter
as
the
power
supply
for
EL.
The
inverter
has
an
output
voltage
reach
approximately
200
volts(AC).
Utmost
care
should
be
used
not
to
suffer
from
a
possible
electric
shock,
accordingly.
@in
the
circuitry
of
this
model,
the
portions
to
which
approximately
200V(AC)
is
applied
are
denoted
by
pink
color.
@The cassette mechanism employed in this model is one of X-ORS series.
CONTENTS
1.
SPECIFICATIONS
..0.
eee
eeccneeeteeeeetseseeseseeeeeeee
2
8.
CASSETTE
MECHANISM
MODULE
2
DISASSEMBLY
ixcccc
ccessctiseass
coscevaseisesaiaiietevseteecaseecenst
3
EXPLODED
VIEW........ececccssssccesseseseeeeeeresesne
saeees
87
SHADIUSEMENT
pescicccicssrssecsxcsacebieadoitessVantiabaceeeseied
6
9.
EXPLODED
VIEW(2)
ooo...
ccsccsscstssessseeeseresesene
seeees
90
4.
ERROR
NUMBERS
AND
10.
FREE
SPACE
REMOTE
CONTROL
NEW
TEST
MODE
........ceeesesesccereeseeeseeeeseateeeees
11
EXPLODED
VIEW...
ceececesssesesesscsceeseseeene
ceeees
92
5. BLOCK DIAGRAM... sce cceseneeseectereeeeteesseeeteeees 31 11. PACKING METHOD 0. ec eeeseeeseseeesecesseceseren aenees 95
6. CIRCUIT DIAGRAM AND 12. ELECTRICAL PARTS LIST........ccsceccssssssssssssenn eoeses 99
P.C.BOARDS PATTERN |... eeceeeseseescsesseseseseseees 36 13. CIRCUIT DESCRIPTION ......ccccsssessescssssseesseene foes 106
7. EXPLODED VIEW(1) .... cece eesseteceeeesssesssseseeseenes 83 14, OPERATION AND CONNECTION .........cccces ones 108
PIONEER
ELECTRONIC
CORPORATION
4-1,Meguro
1-Chome,Meguro-ku,.-Tokyo
153,Japan
PIONEER ELECTRONICS SERVICE INC. P.0.Box 1760,Long Beach,California 90801 U.S.A.
PIONEER
ELECTRONICS
OF
CANADA,
INC.
300
Allstate
Parkway
Markham,Ontario
L3R OP2
Canada
PIONEER ELECTRONIC [EUROPE] N.V. Haven 1087 Keetberglaan 1,9120 Melsele,Belgium
PIONEER
ELECTRONICS
AUSTRALIA
PTY.LTD.
178-184
Boundary
Road,Braeside,
Victoria
3195,
Australia
TEL:[03]580-9911
© PIONEER ELECTRONIC CORPORATION 1993 ee eR Te

3S-K1
SAFETY INFORMATION(UC MODEL)
CAUTION
This service manual is intended for qualified service technicians; it is not meant for the casual do-it-yourselfer.
Qualified
technicians
have
the
necessary
test
equipment
and
tools,
and
have been
trained
to
properly
and
safely
repair
complex products such as those covered by this manual.
Improperly performed repairs can adversely affect the safety and reliability of the product and may void the warranty.
If
you
are
not
qualified
to
perform
the
repair
of
this
product
properly
and
safely;
you
should
not
risk
trying
to
do
so
and refer the repair to a qualified service technician.
WARNING
Lead
in
solder
used
in
this
product
is
listed
by
the
California
Health
and
Welfare
agency
as
a
known
reproductive
toxicant
which
may
cause
birth
defects
or
other
reproductive
harm
(California
Health
&
Safety
Code,
Section
25249.5).
When
servicing or handling
circuit
boards
and
other
components
which
contain
lead
in
solder,
avoid
unprotected
skin
contact
with
the
solder.
Also,
when
soldering do
not
inhale
any
smoke or
fumes
produced.
1. SPECIFICATIONS
General MW tuner
Power source ....... 14.4 V DC (10.8 — 15.6 V allowable) Frequency range (UC, ES) oe 530 — 1,710 kHz
Grounding
SyStOM
oo...
cccccceecceeeeeseesescens
Negative
type
Frequency
range
(EW,
ES)
......
531
—
1,602
kHz
Max.
CUrFENE
CONSUMPTION
.......cccccccecceececseesesesensesseees
1A
Usable
sensitivity
18
pV
(25
dB)
(S/N:
20
dB)
PUSC®
02.0i
seceunetieigttaraclege
ter
dectiistetara
Raagiilistnascest
4A
S@lECtIVILY:.
52:
scissscrnisieehvetosecdeestuencney
aes
50
dB
(+
9
kHz)
Dimensions
(chassis) 0.0.0.0... 178 (W) x 50 (H} x 150 (D) mm LW tuner (EW)
(front face) oo. 188 (W) x 58 (H) x 18 (D) mm
Weight (main UNit) occ cc ceeecccseesececssessesscecerees Frequency range bees ices a mea gare read 153 — 281 kHz
(power
source
unit)
;
Usable
Sensitivity
cite
tas
30
pV
(30
dB)
(S/N:
20
dB)
(SYSTEM
COMMUNICATOR)
o-oo
0.1kg
Selectivity
madccmcien
id
casiaton
eercdccees
50
dB
(+
9
kHz)
Signal format
(Sampling frequency) ......cc.cccccceseeeee 44.1 kHz AUX (External Input)
(Number
of
quantization
bits)
............
18
bit
linear
Frequency
response
............
10
—
20,000
Hz
(+0,
~1
dB)
Digital
Output
oo...
eeeeeeesteseeaeeeeene
Optical
output
Distortion
..............
0.005%
(at
1
kHz,
1
V,
20
kHz,
L.P.F.)
Signal-to-noise ratio
Tape player cc ccieecetttneevvsetene 90 dB (at 1 kHz, 1 V, 20 kHz, L.P.F.)
Separation .. 85 dB (at 1 kHz, 1 V, 20 kHz, L.P.F.)
Tape een Compact cassette tape (C-30 — C-90)
Tape speed .... 4.76cm/sec. (+0.14cm/sec., -0.05em/sec.)
Fast forward/rewind time
wabidasededend sian deiceseeodecaatoudaaas Approx. 100 sec. for C-60
Wow & flutter ooo. cececseeserteree 0.05% (WRMS)
StereO SEPALAtiON oo... ecccecceccseceececcesesvescneees 50 dB
Signal-to-noise ratio
vena Metal: Dolby C NR IN: 73 dB (IEC-A network)
Dolby B NR IN: 67 dB (IEC-A network)
Dolby NR OUT: 61 dB (IEC-A network)
FM tuner
Frequency range (UC, ES) wee 87.9 — 107.9 MHz
Frequency range (EW, ES) ................5. 87.5 — 108 MHz
Usable sensitivity ..0.0.00.... 8 dBf (0.7 1 V/75 82, mono)
50 dB quieting
Sensitivity ou. 13 dBf (1.2 pV/75 8, mono)
Signal-to-noise ratio 0... 70 dB (IEC-A network)
Distortion . 0.3% (at 65 dBf, 1 kHz, stereo)
Frequency response ................ 30 — 15,000 Hz (+ 3 dB)
Stereo separation... 40 dB (at 65 dBf, 1 kHz)

2. DISASSEMBLY
@Removing the Case
1.Remove the two screws A and, then remove the two
holders.
2.Remove the four screws B and, then remove the case.
Holder
Holder
Fig.1
@Removing the Cassette Mechanism Module
1.Remove the four screws.
2.Disconnect the connector of deck unit.
3.Remove the cassette mechanism module.
Cassette Mechanism
odute
Deck Unit
Fig.2
RS-K!1
@Removing the Grille Panel Assy
1.Disconnect the three connectors.
2.Remove the two screws.
3.Disconnect
the
two
stoppers
indicated
by
arrows.
4.Remove
the
grille
panel
assy.
Fig.3
@Removing the Chassis Unit
1.Remove the screw C and three screws D.
2.Remove the solder.
3.Unbend
the
tabs
at
three
locations
indicated
by
arrows.
4.Remove the chassis unit.
Fig.4

is-1 |
@Removing the Display Unit
1.While holding the tab of gear unit at locations
indicated by black arrow.(Fig.5)
2.Press the display unit at locations indicated by white
arrows. (Fig.5)
3.While holding down the lock button ,pull the display
unit toward you.(Fig.6)
Gear Unit
Fig.5
Display Unit
@Removing the Cover Unit
1.Remove the four screws.
2.Disconnect the four stoppers indicated by arrows.
3.Remove the cover unit.
Cover Unit
Fig.7
@Removing the Control P.C.Board
1.Disconnect the two connectors.
2.Remove the four screws.
3.Remove the solder,and then remove the control
P.C.board.
Solder
Fig.8
@Removing the Drive P.C.Board
1.Remove the three screws.
2.Remove the drive P.C.board.

@Removing the EL
1.Remove the solder.
2.Unbend
the
tabs
at
six
locations
indicated
by
arrows.
3.Remove the holder.
4.Remove the EL.
Solder [eA
Fig.10
@Removing the Holder Unit
1.Remove the three washers.
2.Remove
the
screw,and
then
remove
the
holder
unit.
Washer
Holder Unit
Washer
Fig.11
| RAS-K1
@Removing the Lower Case
1.Remove the battery cover, and then remove the
batterys.
2.Remove the door unit.
3.Remove the two screws E and four screws F .
4.Disconnect the four stoppers indicated by arrows.
5.Remove the lower case.
Battery Cover
Batterys
Lower Case
--Door Unit
Fig.12
@Removing the Switch P.C.Board(A) and Main
P.C.Board
1.Remove the four screws.
2.Disconnect the two connectors.
3.Remove the switch P.C.board(A) and main
P.C.board.
Switch P.C.Board (A)
Fig.13

3. ADJUSTMENT
3.1 TEST MODE
Test mode is mainly used adjustment of ODR system CD multi player RS-M1.
- Switching to test mode
While
pressing
the
OPEN/DETACH,
SOURCE
keys
together,
switch
the
back
up
ON
or
release
the
reset
button.
- Canceling test mode
Press the CD multi-player reset button, and then the RS-K1 reset button. Or, switch the CD multi-player and RS-K1
back up OFF.
a) CD multi-player,
Regulator ONIOFF
FWD kick
REV Kick
Tracking close
F-3
F-2
F-6 Focus close
F-4 Focus open
F:5
F-14
PFs —* Cr
PF 1/10/32 jump/carriage move switching
*
SINGLE/10TRK/32TRK
will
continue
to
operate
even
after
the
key
is
released.
Tracking
closed
the
moment
C-MOVE
is
released.
ett

| Re-K1
@Flow Chart
OPEN
DETACH SOURCE
<t— Back Up ON or release the reset button.
<Regulator ON>
CHANGE/ DISG TRACK To new test mode
Display’
.
}
7
TRACK
Tracking
circuit
closed
Carriage
shifted
Carriage
shifted
CD multi player <Regulator OFF>
ulti play
selected Oe HOEK
outwards while inwards while
Display
CHANGE/
ESCAPE
Cre. key is pressed this key is pressed
eee circuit
close
CHANGE/
Spindle
kick
while
<Focus closed, this key is pressed
EStArS
tracking
open,
DISC
TRACK
YES
Spindle
"rough"
servo>
Display
1
|
CHANGE/
ESCAPE
In focus state
<Tracking closed> Display eee TASS
example
TRACK
CHANGE/
ESCAPE
Single —> 10TRK
C ey Select
MOVE C.MOVE€— 32TRK
CHANGE/
ESCAPE

RS-K!1
3.2 AUDIO/TUNER SECTION NOTICE:
Select C1 so that total capacity of 80pF is attained from
the direction of the receiver jack.
Z: Output impedance of SSG.
BACK UP
| "| DC Regulated
Loh +
RS-A1 or RS-A2 Za E mV Meter (1) Oscilloscope
4Q °
Distortion
Meter
FREE SPACE Dummy Antenna
REMOTE CONTROL
OPTICAL CABLE
I
m4
I
f]
| Stereo
1
Modulator
+ Main Antenna
eo
FM FRONT END
DC V
Meter(1)
Frequency
Counter
in 43
Tc601
Pin 25
si
(VDD
in 21
IC602 (TEST)
FM/AM UNIT
DC V
Meter(4)
TO MOTHER
P.C.BOARD
CN752
EXTENSION CABLE
GGD1045
Sa eS
CONTROL P.C.BOARD d
mV
Meter(2)
Fig.14

| RS-K'
AM ADJUSTMENT(EW,ES)
AM SSG(400Hz,30%) Displayed Adjustment Adjustment Method
Frequency(kHz) | Level(dB 4 V) | Frequency(kHz) Point (Switch Position)
Y 1 | | [DC V Meter(1) : Less than 6.5V
ge wang ee Oe oS a
IF T204,T205, |mV Meter(1) : Maximum
T206
AM SSG(400Hz,30%) Displayed Adjustment Adjustment Method
Frequency(kHz) | Level(dB y V) | Frequency(kHz) Point (Switch Position)
POT CCV Meeter(1) : Less than 6.5V
otek Soh eel
T204,T205, |mV Meter(1) : Maximum
T206
FM ADJUSTMENT(EW)
Modulation M1:MONO MOD., 400Hz 30%(22.5kHz Dev.)
M2:MONO MOD., 400Hz 100%(75kHz Dev.)
$1:STEREO MOD., 1kHz, L or R=30%, Pilot=10%(20.25kHz+7.5kHz Dev.)
$2:STEREO MOD., 1kHz, L or R=90%, Pilot=10%(67.5kHz+7.5kHz Dev.)
Frequency(MHz) Point (Switch Position)
98.0975 M2
P98iM2 | 65 =| 981 ~=| 52 [Distortion Meter: Minimum _|
|
98.152.
|
SS
TT
:
Mi
mV Meter(1):A
(AUTO ON)
98.1
Mi
[|
oT
98
:
| 98.1
al
Dae
| 2 |
el
VR102 mV Meter(1) : A-19dB
VR101 mV Meter(1) : Separation 5dB
DC V Meter(2) : Approx. 5V
(SEEK:ON)
1_| 98.1 $1 | 39
ieaceiill
FM ADJUSTMENT(UC,ES)
Modulation M1:MONO MOD., 400Hz 30%(22.5kHz Dev.)
M2:MONO MOD., 400Hz 100%(75kHz Dev.)
§$1:STEREO MOD., 1kHz, L or R=30%, Pilot=10%(20.25kHz+7.5kHz Dev.)
FM SSG Displayed Adjustment Adjustment Method
Frequency(MHz)|} Level(dBf) | Frequency(MHz) Point (Switch Position)
Oscilloscope : OptimumSymmetry
re a
| 98.1
(AUTO ON)
| 98.1 :
= ae
98.1
VR102__ | mV Meter(1) : A-19dB
VR101 mV Meter(1) : Separation 5dB
VR51
DC V Meter(2) : Approx. 5V
(SEEK:ON)

RDS SL ADJUSTMENT(EW
Displayed Adjustmentt Adjustment Method
Frequency(MHz) Point (Switch Position)
Ti fore fee] 1061 | _VR507 | mV Meter(a): 2.3V20.05V
DOLBY NR ADJUSTMENT
Test Tape Adjustment Point Adjustment Method
a) Reece Mg
i NCT-150 mV Meter(2) : -8.24dBs—0.5dB
(400Hz,200nwb/m) +1.5dB
(DOLBY NR Switch : OFF)
SYSTEM CLOCK ADJUSTMENT
Be (Switch Position)
Frequency Counter : 1.048576MHz+2Hz TC601
ie (S1,S2 : ON)
LCD CONTRAST ADJUSTMENT
Adjustment Point Adjustment Method
(Switch Position)
me VR901
NOTE:
LCD contrast adjustment can be made by controlling the voltage with the DC V meter (3). However, as the voltage
varies with temperature, rough adjustment should be made with referring to typical voltages shown in the table
below, and finally the contrast should be adjusted to the optimum by visual sense.
Contrast Adjustment Voltage (Example)
Temperature(C)
10