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KY-27EXR95 RM-Ylll
,SERVlCEMANUAL * US Model
Chassis No. SCC-DSOK-A
Canadian Model
Chassis No. SCC-Q61 E-A
ANU-2 CHASSIS
MODELS OF THE SAME SERIES
KV-27EXR95
KV-27EXR90
SPECIFICATIONS
Television system American TV standards Speaker output 5Wx2
Channel coverage VHF: 2 - 13 Power requirements 120 V AC, 60 Hz
UHF: 14 - 69 Power consumption Maximum: 165 W
Cable TV: 1 - 125 Standby: 1.5 W
Picture tube MicroblackL' Trinitronr tube Dimensions (h/w/d) 595 x 683 x 573.5 mm
27.inch picture measured (23% x 27 x 22% inch)
diagonally Supplied accessories
28-inch picture tube measured Remote Commander RM-Ylll (1) with
diagonally 2 size AA (R6) EVEREADY batteries
Antenna 75.ohm external anlenna terminal Terminal cover (1)
for VHF/UHF Recommended accessories
Input VIDEO 1 and 2 IN U/V mixer EAC-66
S VIDEO IN (4-pin mini DIN) Connecting cable
Y: 1 Vp-p, 75-ohms VMC-8101820.S YCi5V13OV
unbalanced, sync negative SPEAKER SIZE TWEETER 50mm X2
C: 0.286 Vp-p (Burst signal), (2")
75ohms WOOFER 85mm X2
Video (phono jacks): 1 Vp-p, (3 318")
75-ohms unbalanced, TOTAL 2 SPEAKER BOXES
sync negative INTERNAL AUDIO POWER
Audio (phono jacks): 500 mVrms FRONT 5 WATTS X 2
(100% modulation) CONDITION 8 ohms, 10% T.H.D
Impedance: 47 kilohms AUDIO FREQUENCY RESPONSE
output VIDEO 2 OUT TWEETER 2kHz -2OkHz
Video (phono jack): WOOFER 50Hz -2kHz
75-ohms unbalanced, CONDITION BASS/TREBLE ARE IN NORMAL CONDITION
sync negative
Audio (phono jacks): Design and specifications are subject to change without
Impedance: 10 kilohms notice.
AUDIO OUT (VARIABLE)
(phono jacks)
More than 408 mVrms at the
TRINITRONdOLOR TV
s;ONYn
maximum volume setting
(variable)
Impedance: 5 kilohms
SECTION 5
CIRCUIT ADJUSTMENTS
5-l. ELECTRICAL ADJUSTMENT BY
*
REMOTE COMMANDER
Use of Remote Commander (RM-Y 111) can NOTE : Test Equipment Required.
be performed circuit adjustments about this model. 1. Pattern Generator
1. METHOD OF SETTING THE SERVICE MODE 2. Frequency counter
1) Press -1 button on the Remote Commander 3. Digital multimeter
while pressing switch on the rear of the set. 4. Audio OSC
Service mode switch -
2. ADJUST BUTTONS AND INDICATOR
i t e m dqta
MUTING
i
SERVICE HFRE 0 0
M A I N - - M T S
1
SAP
1
MONO
I I
VIDEO
RESEl
3. AN ITEM OF ADJUSTMENT 4. METHOD OF CANCELLATION FROM SERVICE
MODE *
TEM EFERENCE q-- N A M E REGIST 1 Set the standby condition (PressIPOWERjbutton on
ATA
HFRE 44 dP i-FREQUENCE 1 the commander) in the next place, press -1
dFRE 09 JP J-FREQUENCE 1
vpos 10 dP J-SHIFT button again, hereupon it becomes TV mode.
VSIZ 1D dP J-SIZE
VLIN 07 rlP J-LINEARITY 5. METHOD OF WRITE FOR MEMORY
vsco 08 dP ;-CORRECTION
1) Set to Service Mode.
HPOS 07 VP i-PHASE
HSIZ 11 VP i-SIZE 2) Press !$l (UP) and m (DOWN), select an item of
PAMP OF dP `IN AMP. adjustments.
CPIN 04 VP tORNER PIN
PPHA 07 VP `IN PHASE D
3) Pressmlbutton indicate WRITE
( R E )
VCOM 02 VP d-COMP on screen.
GAMP 17 VP SREEN AMP.
BAMP 18 VP BLUE AMP. 4) Pressmlbutton to write for memory.
(At
GCUT OD VP GREEN CUT OFF this time WRITE (YELLOW) is indicated on
BCUT 09 VP BLUE CUT OFF
CROM 1B VP CHROMA TRAP screen.)
SPIX 33 VP PICTURE
SHUE 23 VP HUE 6. MEMORY WRITE CONFIRMATION METHOD
SCOL 1c VP COLOR
SBRT 3F VP BRIGHT
RGBP 1E VP RGB PICTURE WRITE
MPX 08 AP ' ATT 1000 0000
FILO 1B AP I1
DEEM 07 AP I2
STEV 21 AP OSCl l-----l
SAPV 1F AP osc2
PILO 08 AP PILOT 1) After adjustment, pull out the plug from AC
SEP 1B AP WIDE BAND
VD 6A AP SPECTRAL outlet, and next place, plug in AC outlet again.
LVOL 00 AP VOLUME-L 2) Turn the power switch ON and set to Service
RVOL 00 AP VOLUME-R
SHAR 07 VP SHARPNESS Mode.
DISP 37 VP PWM OUTPUT 3) Call the adjusted items again, confirm they were
adjusted.
7. ADJUSTMENT WHEN REPLACING IC
SET TO SERVICE MODE
1)
IC 102(PCD 8582) IC lOl(M 37100 M 8) IC SOl(CXA 1313 S)
EXCHANGE EXCHANGE EXCHANGE EXCHANGE
ADJUSTMENT ADJUSTMENT ADJUSTMENT ADJUSTMENT VP
ALL SERVICE LIST (PWM OUT) (HFRE-RGBP,
VSHO-ABLM)
WRITE THE MEMORY
TURN THE POWER SWITCH OFF.
CANCEL THE SERVICE MODE
NOTE : If service mode is canceled before writing into memory,
the adjustment data is not recorded.
Please write into memory, after adjustment.
-32-
2) The following initial setting should always be per- IV.FREQUENCY ADJUSTMENT (VFRE)~
formed when replacing the IC 102 (PCD 8582). 1) Set the Service Mode.
2) Input an off-air signal (VID'EO IN -+ no signal).
ITEM r; NAME REGISTER
T-
I 4DJUSTMENT 3) Connect the frequency counter across connector
VDY - @ of A-52 connector and ground.
VSOM VP VSMO 0
AFC VP AFC 1.0 0 4) Select VFRE withmandm.
REF VP REF 1.0 2 5) AdjustHandmto the 56 k0.5 Hz.
ROFF VP OFF NR 1 6) Write the memory by pressing m] + then
GOFF VP OFF NG 1 pmzq .
BOFF VP OFF NB 1
ABLM VP ABLM 1 ICHROMA TRAP AD J U S T M E N T (CROM)]
TEST AP T 0 1) Set to Service Mode.
DRGB VP DRGB 1 2) Input a color-bar signal.
i 3) Select NOTCH (VIDEO condition), turn ON by
*Please with the memory each items by pressing press-ing q . And then set the COLOR VR to
-I+ and then pressI=]. maximum set-ting position and SHARPNESS
control to center.
5-2. A BOARD ADJUSTMENTS 4) Connect an oscilloscope to pin 0 of A-32
connector and ground.
5) Select C ROM withiandm, and then adjust 3.58
A-52 Q501 o
MHz (CHROMA) ingredient is minimum with B
pi?zz? andd.
A-55
6) Write into the memory by pressing-]-+
pTGiiq
A-31 then F-1.
7) Set NOTCH to OFF, and make normal condition
with-1 --+ then I*
RESET
A-32
A BOARD
-component side-
IF 201
IRF AGC ADJUSTMENT(IF BLOCK VR)I
1) Input a color-bar signal.
2) Adjust AGC VR of IF 201 so that snow noise and
cross-modulation disappear from the picture.
3) Confirm them at every channel.
IH.FREQUENCY ADJUSTMENT (HFRE)~
1) Set to Service Mode.
2) Input a color-bar signal.
3) Connect a frequency counter to base of Q 501.
4) Call the item of AFC, set to 3 level (free run).
5) Select HFRE withland1.
6) Adjutiandato the 15735+ 60 Hz level.
7) Call the item of AFC again, adjust the level" 00 ".
8) Write into the memory by pressing -1
-+
then -1.
-33-
/SUB CONTRAST ADJUSTMENT (SPIX)] ISUB HUE, SUB COLOR ADJUSTMENT (SHUE, SCOL)]
1) Set to Service Mode. 1) Input a color-bar signah
2) Input a color-bar signal. (75 IRE) 2) Press-\ -+ then RESET to normal.
3) Set the conditions as follows. 3) Set to Service Mode.
4) Connect an oscilloscope to pin @of connector A-32
PICTURE ......... MAX
and ground.
COLOR ......... MIN
5) AdjustMandmto the Vl=V4 and V2=V3 by select
R OFF ......... ON
to SHUE and SCOL withmandM.
G OFF ......... OFF
B OFF ......... OFF Vl v4
T v2 v3
press-1
+ (L) (It becomes minimum) .
Selecta (ON) and@ (OFF) withMandw.
-ALLL
6) Write into the memory by pressing (MUTING] -+then
.
p7mEiq
IV.SIZE ADJUSTMENT (VSlZ)\
white
1) Set to Service Mode.
2) Pressml + then-/to normal.
3) Input a cross-hatch signal.
4) Adjust i and i to the best vertical size by selecting
VSIZ withmandm .
5) Write intoThe mymory by pressing -1 -+then
$NTER] .
4) Connect an oscilloscope to pin 0 of connector
A-32 and ground. IH.SIZE ADJUSTMENT (HSIZ)]
5) Adjust 1 and H to the 1.7 + O.lVp-p level by 1) Input a cross-hatch signal.
select-ing SPIX withmandB. 2) Press-1 -+ then-It0 normal.
6) Write the memory bypressing 1-1 -+ then 3) Set to Service Mode.
IENTER~
. 4)AdjustIandmto best horizontal size by selecting HSIZ
7) Return the following back to normal after withIand1.
adjustment. 5) Write into the memory by pressing IR/IUTING\ --*then
G OFF ......... ON
B OFF ......... ON
COLOR ......... CENTER
PICTURE ......... 80%
-34-
-___ --------
KV-Z/ tAKY9
RM-Ylll
IH.CENTER ADJUSTMENT (H POS)] IFILTER ADJUSTMENT (MPX, FILO)]
Note: Perform this adjustment after H.FREQUENCY 1) Set to Service Mode.
ADJUSTMENT (HFRE) . 2) Select tolTEST[withmandi, set the data to "1".
1) Input a color bar signal. Then select MPX and change data to "08" .
2) Set the Service mode. 3) Connect an audio oscillator to R116 using a
3) Select HSIZ with1 andi . capacitor (10~ F/16V), set frequency to 62.936
4) Pressa so that the Horizontal size set to min. kHz+O.l kHz.
5) Adjust A-55 conector position so that both-size And then, through the lOkS2 resistor, feed 9.3V
branking width of the Raster should be same on the into the pin @ of VIF pack.
Scrnne.
6) Unplug Set then plug in Set.
7) Set to Service mode.
audio oscillator
8) Select HPOS withmandw .
9) Adjust H and 8 so that the color bars center should
be set to the CRT Screen center position.
10) White into the memory by the pressing-1
-+ then I*
ENTER
V 4fh : SINE-WAVE 62.936 KHzkO.1 KHz
LEVEL 3.0 Vp-p
4) Make the data "00" by selecting FILO with a
and m And then, send up the data gradually by
PIN AMP (PAMP) , CORNER PIN (CPIN) AND PIN PHASE pressing w . Set the data to Dl before SAT3
(PPHA) ADJUSTMENT changing to 1 from 0.
1) Input a cross-hatch signal. 5) Send up the data gradually. Set data D2 when
2) Press-1 -+ thenmltom a l .
n o r SAT3 changes 0 from 1.
3) Set to Service Mode. 6) Adjust the data of FILO to D ' : D 2 .
4) Select PAMP, CPIN and PPHA withmanda. 7) Write into the memory by pressing-1
-+
5) Adjustaandmto the best picture. thenmTER1 .
6) Write the memory by-1 T E R ] .
( E N +
item
PIN AMP I / I
SERVICE !iILO 21
1000 0110 MONO data
\
CORNER PIN SAT3
-35-
IST VCO ADJUSTMENT (MPX, STEV)] [MPX IN LEVEL ADJUSTMENT (MPX)]
1) Set to Service Mode. 1) Set to Service Mode. *
2) Select TEST with @ and 1, set the data to "1". 2) Select TEST with1 and @, set the data to "0"
And then press m] to MONO. withw. And then press[MTSlto MONO.
3) Select MPX, set the data "8" . 3) Select MPX with m and w, set the data to "08"
4) Connect an audio oscillator to R 116 using withHandw.
electrolytic capacitor (10~ F/16V) and appply the 4) Write into the memory by pressing m -+
frequency VST. Then, apply DC voltage to pin @ then-1 .
of VIF pack using lOk0 connect to 9.3V line.
[PILOT CANCEL ADJUSTMENT (PILO)]
1) Set to the Service Mode.
from
2) Select TEST with fl and H, set the data to "0"
9.3V line ,
audio oscillator with H. And then press[MTSlto MAIN.
ll
Q%-
I
3) Select PILO withmandH, set the data to "08"
10 K
withmandm.
TP21(MPJ(I
4) Write into the memory by pressing IR/IUTINGI
+ then-1 .
V 4 fh : SINE-WAVE 62.936 KHz zk 0.1 KHz
ISAP VCO f (ADJUSTMENT (SAPV1]
LEVEL 3.0 Vp-p 1) Set to Service Mode.
2) Input a stereo broadcast signal with SAP.
5) Select STEV withiand@, set the data to "00" 3) Select TEST with m and B, set the data to "0" .
withI. And then, send up the data gradually. Set And then, press (MTSlto MAIN.
the data to Dl before SAT2 changes from 0 to 1. 4) Connect a digital multimeter to TP-l(DBX).
6) Send up data gradually, set the data to D2 when This voltage reading will equal V 1.
SAT2 changes 1 from 0. 5) Press MTS to SAP and this voltage will equal V 2.
7) Adjust the data of STEV to . 6) Select SAPV withmandm, adjust@andwso that
8) Write into the memory by pressing -1 -+ V 2=V 120.03 VDC.
then-1 . 7) Write the memory by-1 -+
-1 .
ISEPARATION ADJUSTMENT (SEP)\
1) Set to Service Mode.
10000010 MONO data 2) Pressmlto MAIN and receive a monoral broad
-cast signal.
In the next step, receive a stereo broadcast signal.
3) Select SEP and VD with 1 and H, adjust 1 and @
so that a clear stereo sound is effected.
-36-
5-3. P BOARD ADJUSTMENTS ISUB HUE ADJUSTMENT(RV 2106)j
1) Input a color-bar signal.
2) Set to PICTURE IN PICTURE mode.( l/4 SIZE)
RV 2200
@ 3) PICTURE ............ 80%
RV 2107 RV 2103 (B-y(
pzzlcoLJ lposll@ @
RV 2201
BRIGHT . . . . . . . . . . . . RESET
(R-YI
COLOR ............ RESET
0 TP46B TP047 B
RV 2105 TP4:R B-Y B OUT HUE ............ RESET
-1 R-Y
?V 2106
4) Connect an oscilloscope to TP-47 B.
Q
;usHUE] FL 2205
FL22o6
p5iriE$ 5) Adjust RV2106 so that the 0 coincides with @as
Q 0 p+7iGm@
RV 2108
shown in figure.
CoNTl 0
8 P BOARD 0 TP 1 3 a
Y-IN
-component side-
[RF AGC ADJUSTMENT(IF BLOCK VR)]
1) Input a color-bar signal.
2) Set to PICTURE IN PICTURE mode.
3) Adjust AGC VR of IF 1201 so that snow noise and
cross-modulation disappear from the picture.
4) Confirm them at every channel.
1CONTRAST ADJUSTMENT(RV 2108)l
1) Input a color-bar signal. [BRT LEVEL ADJUSTMENT(RV 2105)j
2) Set to PICTURE IN PICTURE mode. 1) Input a color-bar signal.
3) Observe signal at TP-13 a an oscilloscope. 2) Observe PICTURE IN PICTURE mode.
4) Adjust RV 2108 (SUB CONT) so that the signal 3) Adjust RV 2105(B.LEVEL)so that the signal level
level between white and pedestal becomes 550 + 10 between C.B.black level and Sync level becomes
mVp-p as shown. same level as shown.
TP-13 a output
[SUB COLOR ADJUSTMENT(RV 21071
1) Input a color-bar signal.
2) Set to PICTURE IN PICTURE mode.
3) COLOR . . . . . . . . . . . . RESET
HUE ............ RESET
4) Connect an oscilloscope to TP-47 B. LEVEL
5) Adjust RV 2107 so that voltage is 0.9 +0.05 Vp-p.
0-Y
.OSVP-P
-37-
KV-27 E&FN~ (
IA/D OFF SET ADJUSTMENT(RV 2200,2201)] ISUB PICTURE ADJUSTMENT(FL2205,2206)1
B-Y ADJUSTMENT 1) Input a monoscope signal.
1) Input a color-bar signal. 2) Set to PICTURE IN PICTURE mode.
2) Set to PICTURE IN PICTURE mode. 3) Adjust FL2205,FL2206 so that A and B are same
3) Connect an oscilloscope to TP-46 B. size.
4) Adjust RV 2200 so that the wavefront as shown in
figure.
B - YQ 4-b picture blue t A B
FL-2205=B side
FL-2206=A side
Q -Iv-picture white
[SUB PICTURE POSITION ADJUSTMENT(RV 2103)]
1) Input a cross-hatch signal.
picture green 2) Set to PICTURE IN PICTURE mode.
@-I
3) Adjust RV 2103 so that the SUB PICTURE is a
suitable position.
R-Y ADJUSTMENT
1) Input a color-bar signal.
2) Set to PICTURE IN PICTURE mode.
3) Connect an oscilloscope to TP-46 R.
4) Adjust RV 2201 so that the wavefront as shown in
figure.
B -YQ 4-Lpicture red
@--Iv- picture white
8 7r p i c t u r e g r e e n
-38-
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