Sharp SX80J9 User manual

1
SX80J9
In the interests of user-safety (Required by safety regulations in some countries ) the set should be restored to its
original condition and only parts identical to those specified should be used.
28 SYSTEM COLOURTELEVISION
Chassis No. SP-71
SHARP CORPORATION
SERVICE MANUAL
S69J4SX80J9//
The chassis in this receiver is partially hot. Use an isolation transformer between the line cord plug and power
receptacle,whenservicingthischassis. Topreventelectricshock,donotremovecover. Nouser–serviceable
parts inside. Refer servicing to qualified service personnel.
WARNING
SX80J9
MODEL
Page
CONTENTS
»ELECTRICAL SPECIFICATIONS......................................................................................................2
»IMPOTANT SERVICE NOTES...........................................................................................................2
»ADJUSTMENT PRECAUTIONS........................................................................................................3
»SERVICE ADJUSTMENT.................................................................................................................. 6
»TROUBLE SHOOTING TABLE ........................................................................................................14
»SOLID STATE DEVICE BASE DIAGRAM .......................................................................................19
»CHASSIS LAYOUT.......................................................................................................................... 20
»WAVEFORMS ................................................................................................................................. 22
»DESCRIPTION OF SCHEMATIC DIAGRAM...................................................................................23
»BLOCK DIAGRAM........................................................................................................................... 38
»PRINTED WIRING BOARD ASSEMBLIES .....................................................................................40
»REPLACEMENT PARTS LIST.........................................................................................................49

2
2-1 2-2
SX80J9
ELECTRICAL SPECIFICATIONS
Power Input............................................................................ AC 220-240V, 50Hz
Power Consumption ...................................................................................... 230W
Convergence................................................................. Self Convergence System
Focus .........................................................Bi-Potential, Uni-Potential Electroslatic
Sweep Deflection ..................................................................................... Magnetic
Intermediate Frequency
Picture IF Carrier.................................................................................. 38.9 MHz
Sound IF Carrier
6.5 MHz .......................................................................................... 32.4 MHz
6.0 MHz .......................................................................................... 32.9 MHz
5.5 MHz .......................................................................................... 33.4 MHz
4.5 MHz .......................................................................................... 34.4 MHz
Colour Sub-Carrier
PAL/NTSC..................................................................................... 34.47 MHz
SECAM ............................................................................. 34.494/34.65 MHz
NTSC .............................................................................................35.32 MHz
Audio Power Output Rating ................... 4W x 1 + 8W x 2 + 13W total 33W (Max)
Speaker
Size...................... 5 x 9 cm Elliptic x1,10 cm Round x 2-pcs., 10cm Woofer Box
Voice Coil Impedance ................................ 16 ohm at 400 Hz, 8 ohm at 400 Hz,
5 ohm at 400Hz (Woofer Box)
Aerial Input Inpedance ............................................................75 ohm Unbalanced
Receiving Channels
PAL-B/G, SECAM-B/G
VHF....................................................................................AU0 thru AU12
NZ1 thru NZ11
E2 thru E12
UHF ................................................................................... E21 thru E69
CATV...................................................................................... X thru Z + 2,
S1 thru S41
PAL-D/K, SECAM-D/K
VHF......................................................................................R1 thru R12,
C1 thru C12
UHF ..................................................................................... 21 thru 69,
C21 thru C57
PAL-I, SECAM-I
VHF............................................................... (IRELAND): A thru J
UHF ............................................................... (U.K.,H.K.): 21 thru 69
NTSC-M
VHF..........................................................................(US): 2 thru 13
(JAPAN): 1 thru 12
UHF .........................................................................(US): 14 thru 69
(JAPAN): 13 thru 62
CATV........................................................................(US): A-6 thru A-1
A thru W+29
(JAPAN): C13 thru C63
Receiving Frequency
VHF Low .................................................................44.25 MHz thru 140.25 MHz
VHF High ...............................................................147.25MHz thru 423.25 MHz
UHF ...................................................................... 431.25 MHz thru 863.25 MHz
Specifications are subject to change without notice.
IMPOTANT SERVICE NOTES
Maintenance and repair of this receiver should be done by
qualified service personnel only.
SERVICING OF HIGH VOLTAGE SYSTEM AND
PICTURETUBE
When servicing the high voltage system, remove static charge from it by
connecting a 10k ohm Resistor in series with an insulated wire (such as a
test probe) between picture tube dag and 2nd anode lead.(AC line cord ahould
be disconnected from AC outlet.)
1. Picture tube in this receiver employs integral implosion protection.
2. Replace with tube of the same type number for continued safety.
3. Do not lift picture tube by the neck.
4. Handle the picture tube only when wearing shatterproof goggles and after discharging
the high voltage completely.
X-RAY
This receiver is designed so that any X-Ray radiation is kept to an absolute
minimum.Since certain malfunctions or servicing many produce potentially
hazardous radiation with prolonged exposure at close range, the following
precautions should be observed:
1. When repairing the circuit,be sure not to increase the high voltage to more than 35.0 kV
(at beam 0µA) for the set.
2. To keep the set in a normal operation, be sure to make it function on 30.5 ± 1.5kV (at
beam 2.0 mA) in the case of the set. The set has been factory-Adjusted to the above
mentioned high voltage.
If there is a possibility that the high voltage fluctuates as a result of repairs, never
forget to check for such high voltage after the work.
3. Do not substitute a picture tube with unauthorized types and/or brands which may cause
excess X-Ray radiation.
BEFORE RETURNINGTHE RECEIVER
Before returning the receiver to the user,perform the following safety checks.
1. Inspect all lead dress to make certain that the leads are not pinched or that hardware is
not lodged between the chassis and other metal parts in the receiver.
2. Inspect all protective device such as non-metallic control knobs, insulating fishpapers,
cabinet backs, adjustment and compartment covers or shields, isolation resistor- ca-
pacity networks, mechanical insulators etc.

3
3-1 3-2
SX80J9
ADJUSTMENT PRECAUTIONS
This model’s settings are adjusted in two different ways: through the I2C bus control and in the conventional analog
manner.The adjustment via I2C bus control include present-only variable data.
1) Calling the service mode by the microprocessor
1Makeashort-circuit betweenTP1001 andTP1002, and the microprocessor is putintheservice mode (adjust-
ment through the I2C bus control).
2Perss the CH-DOWN key on the remote controller to get ready to select the modes one by one.
3Perss the CH-UP key on the remote controller to get ready to select the modes in order opposite to the avove
step 2.
4Using the VOL UP/DOWN keys on the remote controller, the data can be converted.
5Remove the short-circuit between TP1001 and TP1002, and the microprocessor is put out of the service
mode.
2) Setting the initial (preset) values
1Call up the service mode and turn on the main power switch. A new E2PROM (judged by the first 4 bytes) can
be automatically set to the initial data.
2The initial data are as shown on pages 7,8,9 and 10.
3Note that some items of the data must be modified and the others must stay as initial.
Note: After the chassis has been assembled, be sure to call up the service mode first and then turn on the
main power switch, as discussed in 2-1 above. If the main power switch is turned on without the
E2PROM initialized, an excess beam current may flow into the circuitry.
SERVICE MODE (I2C bus adjustment)
(1) Press the specific keys to change the modes as follows.
SECAM R-Y (SCM R-Y)
SECAM B-Y (SCM B-Y)
CHROMA GATE PULSE (SCM GP)
RASTER mode CUT-OFF mode 50Hz ADJUST
mode
50Hz ADJUST mode
60Hz ADJUST
mode
COLOUR ADJUST
mode
SUB-ADJUST
mode
SUB-ADJUST mode
SPECIAL PICTURE
mode
PIP ADJUST
mode
NICAM
mode
V-AMP 50Hz
(V-AMP5)
V-LINE 50Hz
(V-LIN5)
S-CORRECT 50Hz
(V-SCOR5)
V-PHASE 50Hz
(V-PHS5)
H-PHASE 50Hz
(H-PHS5)
H-SIZE 50Hz
(V-SIZE5)
H-COMPENSATION
(H-COM)
EW-PARABOLA
(E/W PAR)
V-BIAS
(V-BIAS)
∫ CORRECTION
(V-
∫ COR)
EW-CORNER
(E/W-COR)
TRAPEZIUM
(TRAPE)
V-COMPENSATION
(V-COM)
In the direction of allow : CH DOWN Key
In the opposite direction : CH UP Key
In the direction of allow : CH DOWN Key
In the opposite direction : CH UP Key
* The characters in parentheses appear on the
on-screen display.
In the direction of allow : CH DOWN Key
In the opposite direction : CH UP Key
In the direction of allow : CH DOWN Key
In the opposite direction : CH UP Key
COLOUR ADJUSTmode
BELL FILTER (SCM BELL)
SUB-CONTRAST (SUB CON)
SUB-BRIGHT (SUB BRI)
SUB-COLOUR (SUB COL)
SUB-TINT (SUB TIN)
SUB-SHARPNESS (SUB SHP)
SUB-VOLUME (SUB VOL)

4
4-1 4-2
SX80J9
60Hz ADJUST mode
V-AMP 60Hz (V-AMP6)
V-LINE 60Hz(V-LIN6)
S-CORRECT 60Hz(V-SCOR6)
V-PHASE 60Hz(V-PHS6)
H-PHASE 60Hz(H-PHS6)
H-SIZE 60Hz (V-SIZE6)
In the direction of allow : CH DOWN Key
In the opposite direction : CH UP Key
In the direction of allow : CH DOWN Key
In the opposite direction : CH UP Key
In the direction of allow : CH DOWN Key
In the opposite direction : CH UP Key
BS DET SRT POINT (LEVEL)
8 MHz f RESPONCE (RS)
SRT TRAC (RTC)
V/C/J BS (BS)
NICAM ERROR AUTO (N-AMIDIS)
V-ENHANCEMENT LEVEL (V-ENH)
COLOUR BANDPASS FILTR (CBPF)
1 LINE DOT IMPROVEMENT (LD)
CORING (CORING)
00:10 IRE ~ 11:40 IRE BS
00:28 IRE ~ 11:7 IRE SRT
MIN MAX
0 ~ 7
MIN MAX
0 ~ 7
MIN MAX
0 ~ 7
ON/OFF
0 / 1
ON/OFF
0 / 1
ON/OFF
0 / 1
ON/OFF
0 / 1
ON/OFF
0 / 1
PIP ADJUST mode
H-POSITION (H-POS)
V-POSITION (V-POS)
PIP SUB TINT (PIP-TINT)
SUB V-PULSE DELAY (VSIDLY)
SUB H-PULSE DELAY 50Hz (HSIDLY5)
SUB H-PULSE DELAY 60Hz (HSIDLY6)
MAIN V-PULSE DELAY (VSPDLY)
H/V FRAME WIDTH (FRM)
FRAME COLOUR (UFC)
FRAME LUMINANCE (YFC)
PLL TIME CONSTANT (PLLTC)
Y-DELAY NTSC (YDLYN)
Y-DELAY PAL (YDLYP)
SELECT PHASE (SELDLY)
SPECIAL PICTURE mode
NICAM mode
IGR LEVEL (IGR-LVL)
IGR STEREO (IGR ST)
NICAM ERR-MAX (N-ERR MAX)
NICAM ERR-MIN (N-ERR MIN)
NICAM AMDIS (N-AMDIS)
0 SERVICE MODE
1 CUT OFF ADJ. CUT OFF BKGD ∗∗
2 V-AMPLITUDE (50Hz) ADJ. V-AMP5 PDC V-AMPLITUDE 73
3 V-LINEARITY (50Hz) ADJ. V-LIN5 PDC V-LINEARITY 22
4 V-S CORRECTION (50Hz) ADJ. V-S COR5 PDC V-S CORRECTION 9
5 V-PHASE (50Hz) ADJ. V-PHS5 VCD1 V-PHASE 7
6 H-PHASE (50Hz) ADJ. H-PHS5 VCD1 H-PHASE 17
7 H-SIZE (50Hz) ADJ. H-SIZE5 PDC H-SIZE 42
8 EW-PARABOLA ADJ. E/W PAR PDC EW-PARABOLA 33
9 V-BIAS V-VIAS PDC V-BIAS 5
10 V-∫CORRECTION V-∫COR PDC V-∫CORRECTION 10
11 EW-CORNER ADJ. E/W COR PDC EW-CORNER 5
12 TRAPEZIUM TRAPE PDC TRAPEZIUM 30
13 V-COMPENSATION V-COM PDC V-COMPENSATION 6
14 H-COMPENSATION H-COM PDC H-COMPENSATION 4
15 BELL FILTER ADJ. SCM BELL SECAM BELL FILTER 120
16 SECAM R-Y ADJ. SCM R-Y SECAM R-Y 8
17 SECAM B-Y ADJ. SCM B-Y SECAM B-Y 8
18 SECAM GATE PULSE ADJ. SCM GP SECAM SGP 0
19 SECAM CHROMA ATT SCM ATT SECAM C-ATT 0
20 SECAM ID SETTING SCM ID SECAM ID-SENS 0
21 FLESH COLOUR SETTING FLESH VCD1 FLESH 1
22 SRT MODE SETTING SRT-MD VCD1 SRT-MD 0
23 WHITE PEEK DETECT LEVEL WPDL VCD1 WPDL 1
24 WHITE PEEK DETECT CURRENT WPDC VCD1 WP-DET 0
25 HI-BRIGHT COLOUR SETTING HIBRT VCD1 HI-BRT 1
26 Y-γADJ. Y-GMMA VCD1 Y-γ1
27 COLOUR-γADJ. C-GMMA VCD1 COLOUR-γ2
28 COLOUR DETAIL SETTING CDE VCD1 CDE 1
29 GP-PHASE ADJ. GP-PHS VCD1 GP-PHASE 0
30 R-Y PHASE ADJ. RY-PHS VCD1 R-Y PHASE 1
31 R-Y PHASE ADJ. (NTSC) RY-PHSNT VCD1 R-Y PHASE 1
32 R-Y GAIN ADJ. RY-GAIN VCD1 R-Y GAIN 0
33 G-Y GAIN ADJ. GY-GAIN VCD1 G-Y GAIN 2
34 P/N ID SENSITIVITY SETTING PN-ID VCD1 P/N-ID 1
35 Y DELAY ADJ. Y-DLY VCD1 Y-DLY 0
36 VM-PHASE ADJ. VM-PHS VCD1 VM-PHS 0
37 S-TRACKING ADJ. STRAC VCD1 S-TRAC 0
38 H-BLK PULSE ADJ. HBLK VCD1 H-BLK 0
39 DC-TRANS POINT ADJ. DCT-P VCD1 DC-TRANS POINT 2
40 DC-TRANS RATE ADJ. DCT-R VCD1 DC-TRANS RATE 6
41 DC-TRANS LIMIT ADJ. DCT-L VCD1 DC-TRANS LIMIT 0
42 B.S.P. LIMIT BSPL VCD1 B.S.P. LIMIT 0
43 B.S. POINT1 BSP1 VCD1 B.S. POINT1 5
(2) * In going to the service mode, read the data at addresses 00H thru 03H on the EEPROM.If the data is different
from the one below, initialize the EEPROM as follows.
00H:50H 01H:80H 02H:30H 03H:13H
[Adjusting items]
No. Setting item On-screen display IC Data setting Initial value

5
5-1 5-2
SX80J9
44 B.S. POINT2 BSP2 VCD1 B.S. POINT2 6
45 B.S.G. BSG VCD1 B.S.G. 0
46 BLACK LEVEL CORRECT1 BLC VCD1 B.L.C. 1
47 BLACK LEVEL CORRECT2 BLS VCD1 B.L.S. 0
48 BLACK DETECT LEVEL BDL VCD1 B.D.L. 1
49 DYN. ABL-POINT DABLP VCD1 DYN. ABL-POINT 6
50 DYN. ABL-GAIN DABLG VCD1 DYN. ABL-GAIN 4
51 ABL-POINT ABLP VCD1 ABL-POINT 5
52 ABL-GAIN ABLG VCD1 ABL-GAIN 6
53 TOF F0 CHARACTERISTIC TOF-F VCD1 TOF F0 0
54 TOF Q CHARACTERISTIC TOF-Q VCD1 TOF Q 0
55 SUB-CONTRAST ADJ. SUB CON VCD1 SUB-CONTRAST 15
56 BRIGHTNESS SUB ADJ. SUB BRI VCD1 BRIGHTNESS 140
57 SUB COLOUR ADJ. SUB COL VCD1 SUB-COLOUR 35
58 TINT SUB ADJ. SUB TIN VCD1 TINT 55
59 SHARPNESS SUB ADJ. SUB SHP VCD1 SHARPNESS 63
60 VOLUME SUB ADJ. SUB VOL S-CTRL VOLUME 80
61 TONE FILTER ADJ. S-FIL S-CTRL SOUND FILTER 0
62 TXT-CONTRAST ADJ. TXT-CONT VCD1 TXT-CONTRAST 50
63 TXT-BRIGHTNESS ADJ. TXT-BRI VCD1 TXT-BRIGHTNESS 90
64 V-AMPLITUDE (60Hz) ADJ. V-AMP6 PDC V-AMPLITUDE 73
65 V-LINEARITY (60Hz) ADJ. V-LIN6 PDC V-LINEARITY 22
66 V-S CORRECTION (60Hz) ADJ. V-S COR6 PDC V-S CORRECTION 9
67 V-PHASE (60Hz) ADJ. V-PHS6 VCD1 V-PHASE 3
68 H-PHASE (60Hz) ADJ. H-PHS6 VCD1 H-PHASE 21
69 H-SIZE (60Hz) ADJ. H-SIZE6 PDC H-SIZE 41
70 PLL MODE SETTING PLL PLL1/2 TEST 4
71 IGR LEVEL ADJ. IGR-LVL IGR LEVEL 4
72 IGR IGR-ST IGR STEREO 24
73 NICAM ERROR RATE (MAX) N-ERR MAX NICAM ERR-MAX 70
74 NICAM ERROR RATE (MIN) N-ERR MIN NICAM ERR-MIN 35
75 NICAM ERROR N-AMDIS NICAM AMDIS 0
76 V-ENHANCEMENT V-ENH DCF VENH 4
77 COLOUR BAND PASS FILTER CBPF DCF CBPF 0
78 1 LINE DOT IMPROVEMENT LD DCF LD 0
79 CORING CORING DCF COR 0
80 PIP H-DISPLAY POSITION H-POS PIP POS-H2,POS-H 16
81 PIP V-DISPLAY POSITION V-POS PIP POS-V 16
82 PIP SUB TINT PIP-TINT VCD2 TINT 35
83 PIP V-POSITION VSIDLY5 PIP VSIDEL 10
84 PIP H-POSITION (50Hz) HSIDLY5 PIP VSIDEL 3
85 PIP H-POSITION (60Hz) HSIDLY6 PIP VSIDEL 2
86 PIP DISPLAY ADJ. VSPDLY PIP VSPDEL 0
87 PIP SEL ADJ. SELDLY PIP SELDEL 2
88 PIPY-DELAY (PAL) YDLYP PIP YDEL 0
89 PIPY-DELAY (NTSC) YDLYN PIP YDEL 0
No. Setting item On-screen display IC Data setting Initial value 90 PIP PLL SETTING PLLTC PIP PLLTC 3
91 PIP FRAME LUMINANCE YFC PIP FRY 10
92 PIP FRAME COLOUR UFC PIP FRV.FRU 0
93 PIP FRAME WIDTH FRM PIP RWIDV,FRWIDH 12
94 OSD POSITION * MICON HR 9
95 STANDARD SOUND SYSTEM S-SYS MICON BG
96 LANGUAGE OPTION SETTING LANG MICON 255
97 PAL-TINT SETTING PAL-TINT VCD1 TINT 64
No. Setting item On-screen display IC Data setting Initial value
*For 60 Hz data, enter the following values in the data set for 50 Hz.
Setting Item Offset Value
V-AMPLITUDE ADJ. 0
V-LINEARITY ADJ. 0
V-S. CORRECTION 0
V-BIAS -4
H-PHASE ADJ. +4
H-SIZE ADJ. -1
Geomagnetism (H,V) nT Background Language S-sys
-50000 20000 12300K ENGLISH B/G
Factory settings and geomagnetic adjustment model by model
(reference)

6
6-1 6-2
SX80J9
FACTRY SETTINGS
ITEM DATA SETTING
SKIP OFF
AFT ON
C-SYSTEM AUTO
S-SYSTEM B/G
IGR FORCED FM ON
IGR MODE ST, MAIN
NICAM FORCED FM ON
NICAM MODE M1
LAST POWER ON
LAST TV/AV (MAIN/SUB) TV
DIGIT 2DIG
LANGUAGE ENGLISH
BULE BACK ON
AV MENU STANDARD
AUTO SELECT OFF
LAST POS (MAIN/SUB) 1
LAST FB POS 1
VOLUME 0
BALANCE 0
CONTRAST INITIAL VALUE OF EACH AV MENU MODE
COLOUR INITIALVALUE OF EACH AV MENU MODE
BRIGHTNESS INITIAL VALUE OF EACH AV MENU MODE
TINT INITIAL VALUE OF EACH AV MENU MODE
SHARPNESS INITIAL VALUE OF EACH AV MENU MODE
YNR INITIAL VALUE OF EACH AV MENU MODE
BKGD INITIAL VALUE OF EACH AV MENU MODE
TREBLE INITIAL VALUE OF EACH AV MENU MODE
BASS INITIAL VALUE OF EACH AV MENU MODE
U-BASS INITIAL VALUE OF EACH AV MENU MODE
SPATIALIZER AV MENU : STANDARD ON 1LEVEL 0
OTHER AV MENU : INITIAL VALUE
TIMER CLEAR
SAVE OFF
HEAD PHONE AUTO (LEVEL: CENTER)
INSET TINT 0
DEMO OFF
PIP DISPLAY POSITION LOWER RIGHT
SERVICE ADJUSTMENT
PIF/AFT/AGC ADJUSTMENT
1. TUNER IFT (preset) ADJUSTMENT: TU201(TU101)
1. Get the tuner ready to receive the E-9CH
signal,but with no signal input.Adjust PLL data.
2. Connect the sweep generator's output cable to
the tuner antenna. (RF sweep)
3. Adjust the sweep generator's output level to
80dBµV.
4. Connect the responce lead (use a low-imped-
ance probe with wave detector; see
Fig.1 .) to
the tuner's IF output terminal.
(This terminal must have the probe alone con-
nected.)
5. Set the RF AGC voltage to 0-6V with no contact
with waveform.
6. AdjustthetunerIFcoiltoobtainthewaveformas
shown in
Fig.2 .
Note: Be sure to keep the tuner cover in position
during this adjustment.
2. VCO ADJUSTMENT:T203 (T103)
1. Disconnect the antenna from the tuner antenna terminal.
2. Apply DC voltage at pin (4) (IF AGC) of IC201 (IC101).
6.0 ± 0.1 V TP202 (TP102)
3. Using a digital voltmeter, measure the DC voltage at pin (20) (PLL FIL) of IC201 (IC101).
* Prepare a digital voltmeter capable of reading down to the third decimal place.
4. Remove the DC voltage from pin (4) of IC201 (IV101).
5. Reconnect the antenna and receive the E-12CH signal. (With the AFT off, set the receiving frequency to
224.25 MHz.)
6. Connect the DC digital voltmeter to pin (20) of IC201 (IC101). Adjust T203 ( T103) to get the voltage
measured in the above step 3.
Allowable error: ± 0.015V (20 kHz)
Note: Operate PIP when you adjustT103.
1000p
1000p
10kΩ
75Ω100kΩOscilloscope
IF-OUT
E9CH
- 1.5dB 0.8dB
PC
Fig. 1
Fig. 2

7
7-1 7-2
SX80J9
1. PIPY LEVEL ADJUSTMENT:
R4938 (on P-in-P unit)
1. Receive E-12CH "PAL COLOUR BAR" signal for
the main and PIP.
2. Connect the oscilloscope to TP805(PI (16)) on
the main unit.
3. Adjust R4938 so that the 100% white portion in
the PIP and that in the main screen be at the
same level. (See Fig.5. )
• Adjustment error: 0 ± 0.02 V.
Note: The level difference between the pedestal and
that 100% white portion should be 0.7Vp-p or
so.
2. PIP SUB-COLOUR ADJUSTMENT:
R4952 (on P-in-P)
1. Receive E-12CH "PAL colour bar" signal for the
main and PIP.
2. Connect the oscilloscope to TP804 (PI(14)) on
the main unit.
3. Adjust R4952 so that the R-Y red portion in the
PIP and that in the main screen be at the same
level.(See Fig.6. )
PIF/AFT/AGC ADJUSTMENT
DC voltage at TP201 [ Pin (1) of IC201]
6V
3.3V
DOWN A B' B B'' C UP
TP101 [ Pin (1) of IC101]
DIGITAL COMB FILTERY LEVEL ADJUSTMENT
1. DIGITAL COMB FILTERY LEVEL ADJUSTMENT: R5467
1. Input the PAL colour bar (100% white colour bar) signal to AV-IN terminal with a 75 ohm termination (input
level 1.0 Vp-p ± 0.05Vp-p).
2. Connect the oscilloscope to TP5462 (connectorYA pin (7)).
3. Adjust R5467 so that the Y signal (100% white) at TP5462 be 2.0 ± 0.1Vp-p.
Note: Make sure that the signal is linearly amplified overall. (The 100% portion should be kept intact.)
<Reference> Note the voltage level for the adjustment with the E-12CH signal.
To be adjusted to 2.0Vp-p at TP5462
* Make sure the above value is available after the adjustment No.5.(See Page 12.)
Input (YB) (2): 2.0 V ± 0.1Vp-p
Output (YA) (7): 2.0 V ± 0.1 Vp-p
PIP (SUB-SCREEN) ADJUSTMENT
3. AFT ADJUSTMENT:T204(T104)
1. Receive the E-12CH (PAL colour bar) signal. If
this signal is not available, any signal above the
E-5CH band is acceptable.
•Field strength: 55~80 dBµV
Make sure the frequency is almost the same as
that of the received channel (± 30 kHz).
2. Using the channel setting control, make a fre-
quency of 224.25 MHz appear on the screen.
(AFT off)(If any other channel than E-12CH is
received, make its frequency on the screen.)
3. Turn T204 (T104) coil clockwise first to have 6V
reading and then counterclockwise to get 0.2 V
reading.
Withinthisrange,adjustthiscoil to reach thevolt-
age below.
4. Adjust T204 (T104) so that the DC voltage at the
pin (1) of IC201 (IC101) be 3.3 ± 0.2V.(See
Fig.
3
.)
Note: Operate PIP when you adjustT104.
4. RF AGC CUT-IN ADJUSTMENT: R226 (R116)
1. Receive the E-12CH "PAL COLOUR BAR" signal.
•Field strength: 57 ± 1 dBµV (75 ohms open)
2. Connect the oscilloscope to P201 (P101), as
shown in Fig. 4.
•Bias box: About 6.5V
3. Turn R226 (R116) to have the highest voltage.
4. Turn R226 (R116) slowly in the oppsite direction
untillthevoltagegoes down0.1Vbelowthe high-
est level.
5. Adjust the signal level to 63-67 dBµV and make
sure there are no noise.
6. Now adjust the signal level to 90-95 dBµV and
make sure there is no chrominance modulation
beat.
Note: Operate PIP when you adjust R116.
Note: If a 50 ohm field strength meter is used with-
out a 50/75 impedance converter, set the field
strength to 55 ± 1dBµV.Pay attention to a loss
that would be cause with the converter.
5. VIDEO DETECTION LEVEL ADJUSTMENT: R224
1. Receive the "B/G SYSTEM PAL COLOUR BAR" signal (100% white colour bar). Set the S system to B/G.
2. Adjust R224 so that the video output at the AV OUT terminal be 1.0 ± 0.05 Vp-p with a 75-ohm termination.
Oscilloscope TV Set
0.1V
Bias box
P201
(P101)
+
-
* Turn the core counterclockwise for the UP di-
rection, and clockwise for the DOWN direc-
tion.Adjust the T204 core to point B (between
B' and B''). Point A and C are rejectable.
Fig. 3
Fig. 4
H: Horizontal sync
V: 0.1 V/div. (reading)
Fig. 5
H: Horizontal sync
V: 0.1 V/div. (reading)
Fig. 6
To be at the
same level
Sub 100%
white
Main 100%
white
W
About
0.7Vp-p
P
Sub R - Y red
Main R - Y red
To be at the
same level

8
8-1 8-2
SX80J9
PIP (SUB-SCREEN) ADJUSTMENT (on the actualTV set)
3. PIP SUB-TINT ADJUSTMENT (I2C bus adjustment)
1. Receive J-8CH "NTSC colour bar" signal for the
PIP.
2. ConnecttheoscilloscopetoTP803(PI(2))onthe
main unit.
3. Vary the PIP sub-tint data to get the waveform
as shown in
Fig.7 .
4. Clear the adjustment mode.
Note: Note that this waveform is different from that
of the main-screen sub-tint.
SOUND ADJUSTMENT
1. SUB SOUND ADJUSTMENT (I2C bus adjustment)
1. Feed the following signal to the AV terminal.Signal: 1 kHz, 1.76Vp-p (terminated with a 10-kohm impedance),
0.04/-0.06 Vp-p
2. Set the volume control to MAX.
3. Connect the VTVM probe to the S1 connector.(Pin 1: L-ch, pin 2: GND, pin 3: R-ch)
4. Adjust the sub-sound data so that the VTVM should read the following voltage.For the left channel.
Adjustment error: 7.5 ± 0.1 Vrms
Notes:
• Spatializer off
• In the S-Normal mode
• S-VOL control at MAX position
* Use an 8-ohm dummy load.
2. NOISE MUTE CHECKING
1. Receive E-12CH "PAL colour bar" signal.
2. Turn up the volume control to maximum and make sure the sound is heard from the speakers.Then put the
unit in the no-signal state.
3. Be sure that the sound mute is effective.
4. Finally turn down the volume control minimum.
1. Receive the white pattern by pattern generator. Set
the contrast control to have a beam current of 1.9 mA.
2. Fully degauss the cathode ray tube with the degauss-
ing coil.
3. Set the purity magnet to the zero magnetic field, and
roughly adjust the convergence.Now adjust the purity
magnet to get the centering rank A.
4. Move the deflection yoke to and fro, and observe the
points “a”and “b”as shown in Fig. A with a micro-
scope.
Set the landings to 20 µm inside.Insert and drive the
wedge to keep the deflection yoke well balanced top
and bottom.
4. If the points “a”and “b”are poorly balanced, correct
the centering up to the rank AB.
5. Adjust the raster rotation to 0 eastward.
6. Tighten the deflection coil lock screws.Tightening
torque: 108 ± 20 N (11 ± 2 kgf)
7. Check the corners on the cathode ray tube screen.
Correct the landings, as required, to the rank A by ap-
plying the magnetic sheet.
Note: Makethisadjustmentafter warming up theunit
at the beam current of 1900 ± 50 µA for 30 min-
utes or longer.
If any other adjustment is made during the
warming-up,warm up the unit for 2 more min-
utes and start the purity adjustment.
Note: After adjusting the convergence, set the “a”
and“b” landings to 20 µm inside in advance.
PURITY ADJUSTMENT
A
B
B
A
ab
Fig. A
*1:The deflection yoke position (YPB.is adjusted by set-
ting the “a”and “b”landings.
[20-µm inside point]
Rank "A" (on the
right of the CRT) Rank "A" (on the left of the CRT)
SURROUNDING PURITY ADJUSTMENT
1. Make sure the deflection yoke (YPB) is positioned well. Receive the crosshatch signal and move the
deflection yoke to roughly adjust theYH and YV. (Fix the deflection yoke with the wedge within 30 seconds.)
2. Call up the green-only screen, and set the beam current to 1900 µA.
3. Make sure the landings at the corners are of rank A. If not, apply a purity correction magnet and readjust the
landings.
Sub-screen (B-Y)
WY
Cy GMg RB
Adj.
Fig. 7

9
9-1 9-2
SX80J9
1. CRT CUT-OFF ADJUSTMENTS
Adjusting Point
Sub-Brightness: R890
1. Receive E-5CH "MONOSCOPE PATTERN" sig-
nal.
2. Usingtheremotecontroller, call uptheVideoNor-
mal mode.
3. Go to the service mode (Make short-circuit be-
tweenTP1001 andTP1002.) and select the cut-
off/background mode.
4. Connect the oscilloscope to TP852 (RED cathode).
5. Set the screen control to 0/10 position.
6. Press the "•/••" key on the remote controller to reach the horizontal centering mode.
7. Adjust the sub-brightness control (R890) so that the blanking pulse on the oscilloscope screen be
10 ± 1Vp-p.
8. Disconnect the oscilloscope from TP852.
9. Turn the screen control counterclockwise until the horizontal raster glimmers.
10.Adjust the cut-off data of the other two colours until the horizontal raster becomes whitish.
Note: The data can be turned up and down with the above keys.
• R CUT OFF UP "1" key • G CUT OFF DOWN "5" key
• R CUT OFF DOWN "4" key • B CUT OFF UP "3" key
• G CUT OFF UP "2" key • B CUT OFF DOWN "6" key
11.Turn the screen control counterclockwise until the horizontal raster disappears.
Note: Before starting this adjustment, warm up the unit for 30 minutes or longer at a beam current of
1900 ± 50µA.
12.Press the "•/••" key on the remote controller to call the normal mode.
2. WHITE BALANCE and BACKGROUND (I2C bus adjustment)
1. Receive the E-5CH "MONOSCOPE PATTERN" signal.
2. Using the remote controller, call theVideo Normal mode.
3. Connect the ammeter between TP601 andTP602.
4. Roughly adjust R1631 (Max beam adjustment) to have a beam current of about 1.9 mA.
5. Receive the J-12CH (window pattern) signal. (Or receive the white balance pattern signal.)
6. Adjust the G-drive and B-drive data to have a colour temperature of 12,300°K.(white).
•12,300°K. X: 0.272
Y: 0.275
(with a Minolta colour temperture meter CA-100)
Note: The data can be turned up and down with the above keys.
• G-DRIVE UP "7" key • B-DRIVE UP "8" key
• G-DRIVE DOWN " " key •B-DRIVE DOWN "0" key
7. Using the R-CUT OFF, G-CUT OFF, and B-CUT OFF controls, adjust the white/dark portion to 12,300°K.
8. Readjust the color temperature at the white peak.
9. Check the white/dark portion to make sure the colour temperature is 12,300°K.
Note: Before starting this adjustment, warm up the unit for 30 minutes or longer at a beam current of
1900 ± 50µA.
10 ±1Vp-p
CRT CUT-OFF, BACKGROUND AND SUB-CONTRAST
ADJUSTMENT
CONVERGENCE ADJUSTMENT
(To be done after the purity adjustment)
1. Receive the E-2CH "CROSSHATCH PATTERN" sig-
nal.
2. Using the remote controller, call the Normal mode.
STATIC CONVERGENCE
1. Turn the 4-pole magnet to a proper opening angle in
order to superimpose the blue and red colours.
2. Turn the 6-pole magnet to a proper opening angle in
order to superimpose the green colour over the blue
and red ones.
DYNAMIC CONVERGENCE
1. Adjust the convergence on the fringes of the screen in
the folloeing steps.
a) Fig. a: Drive the wedge at point "a" and swing the
deflection coil upward.
b) Fig. b: Drive the wedge at points "b" and "c" and
swing the deflection coil downward.
c) Fig. c: Drive the "c"wedge deeper and swing the de-
flection coil rightward.
d) Fig. d: Drive the "b"wedge deeper and swing the de-
flection coil leftward.
2. Fix all the wedges on the CRT and apply glass tape
over them.
3. Apply lacquer to the deflection yoke lock screw, mag-
net unit (purity, 4-pole and 6-pole magnets) and mag-
net unit lock screw.
B G R
B G R
R G B
R G B
Fig. a Fig. b
Fig. c Fig. d
B
G
R
B
G
R
R
G
B
R
G
B
Wedge "a"
Wedge "b" Wedge "c"
About 100°
About 100°
Lacquer
4-pole magnet
6-pole magnet
Purity magnet
CRT neck
Lacquer

10
10-1 10-2
SX80J9
3. MAX BEAM ADJUSTMENT : R1631
1. Receive the E-5CH "MONOSCOPE PATTERN" signal.
2. Using the remote controller, call theVideo Normal mode.
3. Connect the ammeter between TP601 andTP602.
•Ammeter's full scale : 3mA range
•Ammeter's positive (+) read : TP601
•Ammeter's negative (-) read : TP602
4. Adjust R1631 so that the beam current be 2.0 mA.
Note: Before starting this adjustment, warm up the unit for 30 minutes or longer at a beam current of 1900
± 50µA.
4. SUBBRIGHTNESS (I2C bus adjustment)
1. Receive the JA12CH (window pattern) signal.
2. Using the remote controller, call up the normal video mode.
3. With a brightness meter ( with “Y”of CA - 100 ), adjust the sub-brightness control so that the right-hand dark/
white portion be 1.8 cd.
CRT CUT-OFF, BACKGROUND AND SUB-CONTRAST
ADJUSTMENT (Continued)
HORIZONTAL AND VERTICAL CIRCUIT ADJUSTMENT
1. MAIN PICTURE ADJUSTMENT
For this items 1 thru 6 below, use the remote controller in the service mode.
1. V-AMPLITUDE 50: Adjust the overscan 8.5% (E-5).
2. V-LINEARITY 50: Adjust to get the best linearity.
3. V-S-CORRECTION 50: Preset (readjust if the linearity is poor).(10)
4. V-PHASE 50 (V-CENTER): Align the screen center with CRT's geometrical center (E-5)
5. H-PHASE 50 (H-CENTER): Align the screen center with CRT's geometrical center (E-5)
6. H-SIZE: Adjust the overscan 8.5% (E-5).
7. EW-PALABOLA (SIDE-PIN): Adjust so that the second vertical lines from the left and right ends of the
crosshatch pattern be straight (E-2).
8. V-BIAS: Preset (7)
9. V-S-CORRECTION: Preset (15)
10.EW-CORNER (SUB-SIDEPIN): Adjust so that the end of the crosshatch pattern be straight.
11.TRAPEZIUM: Preset (Readjust ifnthe trapezium is poor). (25)
12.V-COMPENSATION: Preset (5)
13.H-COMPENSATION: Preset (5)
14.Others: For the V-AMPLITUDE 60, V-LINEARITY 60, V-S-CORRECTION 60, V-
PHASE 60, H-PHASE60, and H-SIZE 60 adjustment, their corrected data
are automatically entered when the corresponding 50 Hz mode adjust-
ments are made.
The signals of the receive channnels in paretheses are follows.
(E-2):Crosshatch pattern (50Hz) (E-5):Monoscope pattern (50Hz)
If an error is too much in checking any of the 60Hz items, readjust the item in 60Hz mode
HORIZONTAL AND VERTICAL CIRCUIT ADJUSTMENT
2. FOCUS ADJUSTMENT
1. Receive the E-5CH "MONOSCOPE PATTERN" signal.
2. Using the remote controller, call theVideo Normal mode.
3. Adjust the focus control so that the "SHARP" at the upside of the screen.
1. H-POSITION (H-POS),V-POSITION (V-POS)
(I2C bus adjustment)
1. H-Position
The data has been factory-set.
If the sub-screens in the four corners are hori-
zontally malpositioned, readjust data so that the
right and left margins be the same.
For the adjustable range, see the figure at right.
2. V-Position
The data has been factory-set.
If the sub-screens in the four corners are verti-
cally malpositioned, readjust data so that the top
and bottom margins be the same.
For the adjustable range, see the figure at right.
* Thehorizontaland verticalpositionsareadjusted
in order to offset the entire range.
<adjustment procedure>
Make sure the screen size (H/V), centering (H/V), linear-
ity (V), parabolism (H), and parabolic corner (H) are all
well adjusted.Receive the E-5CH master screen signal.
Adjust the left and top margins of the upper left sub-
screen to 85%. (See the figure at right.)
Note that raster rotation must be considered too.
2. SUB H-PHASE 50Hz (HSIDLY5)
1. The data has been factory-set.(E-5)
Ifthepicture is noticeablydegraded,readjustthe data so that the left and right overscansin the sub-screen be
the same.
3. SUB H-PHASE 60Hz (HSIDLY6)
1. The data has been factory-set.
When the SUB-H-SHIFT (50) data is adjusted, the corrective data is automatically programmed.
A
C
B
D
Top end of effective CRT screen
Bottom end of effective CRT screen
Right end of effective
CRT screen
Left end of effective
CRT screen
SUB-SCREEN POSITION ADJUSTMENT
85%
85%

11
11-1 11-2
SX80J9
1. SUB-COLOUR ADJUSTMENT
(I2C bus adjustment, main picture)
1. Receive E-12CH "PAL colour bar" signal.
2. Using the remote controller, call the Video Nor-
mal mode.
3. Connect the oscilloscope to TP852 (RED cath-
ode).
(Use a 10:1 probe.)
•Range : 2V/div.
•Sweep time : 20µsec/div.
4. Using the remote controller, call the sub-colour
adjustment mode. Adjust the sub-colour data so
that the 75% white and red portions of the PAL
colour bar be at the same level.See
Fig.9.
PAL CHROMA ADJUSTMENT
NTSC CHROMA ADJUSTMENT
1. SUB-TINT ADJUSTMENT
(I2C bus adjustment, main picture)
1. Call the sub-tint adjustment mode.Rceive the JA-
8CH "NTSC COLOUR BAR" signal.
2. Connect the oscilloscope to TP806 (B-Y)
•Range : 20mV/div.(AC)
•Sweep time : 20µsec/div.
(Use a 10:1 probe.)
3. Adjust the sub-tint data to obtain the waveform
as shown in
Fig.10 .
4. Clear the adjustment mode.
Note: TP806......IC801 55pin
Fig. 10
SIF (NICAM) ADJUSTMENT
1. VCO COIL ADJUSTMENT: T2302
1. Receive the E-69CH (PAL COLOUR BAR) signal.
2. Adjust T2302 so that the DC voltage of connecter (NI) pin (2) (TP204 located on the main unit or TP2303
located on NICAM unit) be 2.5 ± 0.1V.
SIF (IGR) ADJUSTMENT
1. AUDIO LEVEL : R2371
Adjusting conditions
191A video colour bar signal, 87.5% mod.
M1, M2, 400Hz, 30 KHz dev.
TWO SOUND mode (press the M1 or M2 switch)
RF output, 80 dBµ
1. Set the unit's bilingual mode switch to "MAIN" or "MAIN + SUB".
2. Terminate the AUDIO OUT (L) terminal with 10k-ohm impedance.Adjust the AUDIO LEVEL control (R2371)
so that the waveform on the synchroscope be as follows.
Adjustment range: 1.32 Vp-p ± 0.04 Vp-p
Notes: 1.Make sure that "MAIN" or "MAIN + SUB" appears on the OSD screen.
2.Make the setting of 1.76 Vp-p at 40 kHz deviation.
<Reference>
For the NICAM/IGR unit alone, the voltage at pin (17) (L-OUT(NI)) should be 1.36 ± 0.04Vp-p.
2. SEPARATION: R2339
Under the same signal conditions as above, set thesignal generator to the STEREO mode (press the L or R
switch).Turn off the MONO1(L) audio signal.
*Press the S switch and make sure the meter indicates 5 kHz deviation.
1. Set the unit to the STEREO mode.
2. Terminate the AUDIO OUT(L) terminal with a 10-kohm impedance.Adjust the SEPARATION control (R2339)
to make the 400-Hz waveform the smallest.
Note: Make sure the STEREO appears on the screen.
75% white and red to be at the same level.
Fig. 8
Fig. 9

12
12-1 12-2
SX80J9
SECAM CHROMA ADJUSTMENT
1. BELL FILTER fo ADJUSTMENT
(I2C bus adjustment)
1. Receivethe OI-5CH "SECAMCOLOURBAR"sig-
nal.
2. Call the bell filter fo adjustment mode.
3. Connect the oscilloscope to pin (21)(TP901) of
IC901.
•Range : 10mV/div. (AC)
•Sweep time : 20µsec/div.
4. Adjust the bell filter data to have a waveform, the
shape of whitch closest to the
Fig.11 .
2. SECAM BLACK LEVEL (R-Y/B-Y) ADJUSTMENT
(I2C bus adjustment)
1. Receivethe OI-5CH "SECAM COLOURBAR"sig-
nal.
2. Call the SECAM R-Y adjustment mode.
3. Connect the oscilloscope to pin (11)(R-Y
OUT,TP801) of IC901.
•Range : 10mV/div.
•Sweep time : 20µsec/div.
(Use a 10:1 probe.)
4. Adjust the R-Y data so that the offset between the
no-signal and the signal line be minimum.See
Fig.12 .
5. Call the SECAM B-Y adjustment mode.
6. Reconnect the oscilloscope to pin (10) (B-Y OUT,
TP802) of IC901.Take the same conditions as in
step 3 above.
7. Adjust the B-Y data so that the offset between the
no-signal and the signal line be minimum.See
Fig.12 .
To be at the same levbel
OFF
SET
OFF
SET
A/V INPUT AND OUTPUT CHECK
1. AUDIO/VIDEO OUTPUT CHECK
1. Receive the E-12CH "PAL COLOUR BAR" signal (100% white colour bar, sound 400Hz, 100% mod.).
2. Terminate the video output with a 75-ohm impedance.Make sure the output is as specified (1.0Vp-p ± 3dB).
3. Terminate the audio output with a 10k-ohm impedance. Make sure the output is as specified (1.76Vp-p ±
3dB).
2. AUDIO/VIDEO INPUT CHECK, S-TERMINAL INPUT CHECK
1. Using the TV/VIDEO key on the remote controller, make sure that the modes change in order ofTV, AV1, AV2,
AV3 and TV again and that the video and audio outputs are according to the input and output terminals for
each mode.
2. In the AV1 mode, connect the connector to the S-VIDEO input terminal.Make sure the AV mode changes to
the S-VIDEO mode, that the unit functions well, and that "AV1-S" appears on the screen.
3. AV3 AUTOMATIC SELECT CHECK
1. Using the remote controller, receive a TV broadcast signal.
2. Feed the signal to the AV3VIDEO input terminal. Make sure the AV3 mode shows up automatically.
* Setting:AUTO SELECT to be turn on.
PROTECTOR PERFORMANCE CHECK
1. BEAM PROTECTOR
1. Receive the E-5CH "MONOSCOPE PATTERN" signal.
2. Set the contrast control to maximmum.
3. Set the brightness control to maximum.
4. Make a short-circuit between the collector and emitter of Q853 and make sure that the protector is activated
and the stand-by mode is called.
2. HIGH-VOLTAGE PROTECTOR
1. Receive the E-5CH "MONOSCOPE PATTERN" signal.
2. Connect the bias box to the cathode (R1625 side) of D1607.
3. Adjust the bias box voltage to 16V and make sure that the protector is not activated.
•Reference : Usual activate voltage is 19.7V.
4. Boost the bias box voltage to 24V and make sure that the protector is activated.
3. OTHER PROTECTORS
1. Incheckingthe performance ofotherprotectors–forexample,the one againstshortingofsmoothingelectolytic
capacitor of + B line ( pay attention not to damage or deteriorate element ).
Fig. 11
Fig. 12

13
13-1 13-2
SX80J9
NO. CHECK POINT PROCEDUER AND CONDITIONS NOTE, ctc.
PERFORMANCE CHECK (VIDEO AND AUDIO)
For this item, check
the sub-screens too.
1 CONTRAST
2 COLOUR
3 BRIGHTNESS
4TINT
5 NORMAL
6 SHARPNESS
7 CHANNEL SIGN
8 TREBLE
9 BASS
10 BALANCE
1Receive the E-5CH signal.
2Select CONTRAST in the Menu.
3Using the UP/DOWN keys, make sure the contrast
changes accordingly.
1Receive the J-13CH signal.
2Select COLOUR in the Menu.
3Using the UP/DOWN keys, make sure the colour
changes accordingly. (At the MIN position, there
must be no colour.)
1Receive the E-5CH signal.
2Select BRIGHT in the Menu.
3UsingtheUP/DOWNkeys,makesuretheblacklevel
changes accordingly.
1Receive the J-13CH signal.
2Select TINT in the Menu.
3Using the UP key, make sure the tint changes to-
ward green. With the DOWN key, make sure it
changes toward red.
1In the Picture and Sound adjustment mode, press
the Normal key to make sure the displayed content
alone appears normal.
1Receive the E-5CH signal.
2Select SHARPNESS in the Menu.
3Using the UP/DOWN keys, make sure the sharp-
ness changes accordingly.
1Make sure all the channel (0 thru 99) signs appear
DISPLAY COLOUR green (with the AFT on).
1Receive the E-5CH signal.
2Select TREBLE in the Menu of sound adjustment.
3Using the UP/DOWN keys, make sure the treble
changes accordingly.
1Receive the E-5CH signal. Keep the U-BASS off.
2Select BASS in the Menu of sound adjustment.
3Using the UP/DOWN keys, make sure the bass
changes accordingly.
1Receive the E-5CH signal.
2SelectBALANCEintheMenuofsoundadjustment.
3Using the UP/DOWN keys, make sure the left-to-
right balance changes accordingly.
14 P IN P
P I P key
MOVE Key
SWAP Key
FREEZE Key
TV/VIDEO Key
CH UP/DOWNKey
1With the PIP, MOVE, SWAP,FREEZE, and TV/
VIDEO keys, make sure the following functions are
performed as specified: PIP on/off, size switching,
four-corner movement, master/sub-screen inver-
sion,stillpicture,TV/Videoswitching.Addition:Make
also sure that the sub-screen channel changeswith
the CH UP/DOWN key.
1Receive the E-5CH music broadcast signal.
2Using the Menu screen, make sure the sound
modes change as follows.
3In the mono mode, listen to the sound from the
speakers and make sure it feel wide.
13 SPATIALIZER
12 SOUND SYSTEM 1Receive the OI-9CH PAL (D/K) colour bar signal.
Select the M, B/G and I sound systems to make
sure the sound system does not work.
2Receive the E-23CH (I) monoscope pattern signal.
Select the M, B/G and D/K sound systems to make
sure the sound system does not work.
3Receive the E-12CH (B/G) colour bar signal. Se-
lect the M, I and D/K sound systems to make
sure the sound system does not work.
4Receive the JA-8CH (M) colour bar signal. Select
the B/G, I and D/K sound systems to make sure
the sound system does not work.
NO. CHECK POINT PROCEDUER AND CONDITIONS NOTE, ctc.
11 COLOUR SYSTEM 1Receive the E-12CH PAL colour bar signal.Select
a colour system other than PAL. Make sure the
colour system does not work.
2Receive the E-10CH SECAM colour bar signal.
Select a colour system other than SECAM. Make
sure the colour system does not work.
3Receive the E-37CH NTSC4.43 colour bar signal.
Selectacoloursystem other than N4.43.Makesure
the colour system does not work.
4Receive the JA-8CH NTSC3.58 colour bar signal.
Selectacoloursystem other than N3.58.Makesure
the colour system does not work.
SPATIALIZER OFF
SPATIALIZER 1
SPATIALIZER 2

14
SX80J9
14-2
14-1
Does D1201 (POWER LED) turn on?
D1201 (POWER LED) turns on and
off.
Clear the bus error by + 2.5V voltage
pin (16) of IC1001 first and then
turning on the power. (D1201 is then
supposed to stop flashing).
Does D1201 turn in red?
NO RASTER
Circuits to be checked:
• Power circuit.
• Video circuit.
• Protector cirucit.
• Peripheral circuit of
Bus Line.
Normal
Check CRT connector (KY), (H).
Does RY1701 turn on?
Turns on, but soon turns off.
Abnormal
Check Q850,
Q851, Q852,
Q853, Q854,
Q855.
Check
protector circuit
and its related
parts (62) of
IC1001 V
PULSE.
Check the
power circuit
consisting of
IC1701, IC1702,
IC1703, D1701
etc.
Yes
Yes (RED)
Yes
(Bus error) No
Check
protector.
Put pin (16) of
IC1001 in the
original state
and see many
often D1201
flashes in red.
This indicates
which IC to
check up.
Yes No
No
A
B
Check IC801.
Check the voltage at pin (6) of IC1501 and
pin (3) of IC1502.
NO VERTICAL SCAN
Circuits to be checked:
•IC1501, 1502 and its
peripheral circuit
Check IC1501, IC1502
and related circuits
Normal Abnormal
Normal
Check IC801 and its
peripheral parts.
Check vertical trigger pulse at pin (31) of IC801. Check L1501, D1605, D1506
and R1650.
Abnormal
Note1: Make sure that not for the horizontal centering mode.
Turn on the service mode. (Short TP1001 and TP1002.)
Then when you press "- / --" key on the remote you
can get in the horizontal centering mode.
Note2: The vertical sync signal must be fed to pin (62) of
IC1001 in oder not to activate the vertical no-scan
protector.
Take this measure with the protector circuit for the
troubleshooting on the following pages.
Trouble for Sub Pinture (PIP).
See related trouble shooting, and convert to equivalent parts as followings.
TU201 TU101
IC201 IC101
L200 L105
Q201 Q101 etc.
TROUBLE SHOOTINGTABLE TROUBLE SHOOTINGTABLE (Continued)

15
SX80J9
15-2
15-1
Circuits to be checked:
•Power circuit.
•Micon circuit.
•Protector circuit
•Peripheral circuit of
Bus Line.
Check the
peripheral circuit
of IC1751,
IC1703, IC1004.
Check the
power circuit
consisting of
T1701,IC1701
etc.
Normal
Check F1701.
Replace the Fuse.
Is the Fuse again blown out?
Does 5V appear at pin (64) of IC1001.
Blown out
A
No
No Yes
Yes
Check IC1001,
Q1012, Q1751
and IC1003.
B
E
2
PROM
(IC1002)
AV-SW
(IC451)
VCD1
(IC801)
SECAM
(IC901)
PDC
(IC1502)
S-CONTROL
(IC303)
IGR
(IC2302)
PLL1
(TU201)
VCD2
(IC4900)
PIP
(IC4901)
NICAM
(IC2303)
TEXT
(IC1802)
PLL2
(TU101)
DCF
(IC5461)
Lights up
turn off
2 sec 1 sec
Other pattern: Other I
2
C bus control ic or unit.
(It has SDA and SCL PORT.)
TROUBLE SHOOTINGTABLE (Continued) TROUBLE SHOOTINGTABLE (Continued)

16
SX80J9
16-2
16-1
Circuits to be checked:
•PIF circuit.
•A/V circuit.
•Video output.
•Peripheral circuit of Bus Line.
Normal
No snow noise.
Check pin (21) of IC201.
Abnormal
C
Noise or signal
appear.
Is AV1, AV2 or AV3
input normal? Check Q205, Q215, Q212,
Q213, Q214 and their
peripheral circuit.
Check PIF circuits
and its related parts.
Yes
No
Check (36) of IC451
NOISE or signal
appear?
Check IC451 its peripheral
circuit.
No
Yes
Check pin (2) of
IC802 noise or signal
appear?
Check IC802 its
peripheral circuit.
Check IC801 RGB
out Normal?
Check IC801, their
peripheral circuits.
Check the
peripheral circuits
of screen heater
(FBT) and the CRT.
Check Q850,
Q851, Q852 and
their peripheral
circuits.
Yes
Are collector waveforms of
Q850, Q851, Q852 normal?
Yes
No No Yes No
Check TU201, IC201 etc.
Does 5V appear at pin (7) of
TU201. Check L201,IC606 etc.
No
Yes
NO PICTURE
Circuits to be checked:
•A/V circuit.
•Tuner.
•PIF.
•Peripheral circuit of Bus Line.
Does the snow noise appear
on the picture tube at max
contrast and brishtness
control? C
Snow noise increase.
Does 9V appear at pin (6) of
TU201 (TUNER). Check IC601, TU201, IC201 etc and 9V-2 line.
Yes
No
Does 33V appear at pin (9) of
TU201. Check IC203, TU201, L200
Yes
No
Does 12V appear at collector of
Q201. Check 12V line IC602 etc.
Yes
No
No
Yes
TROUBLE SHOOTINGTABLE (Continued) TROUBLE SHOOTINGTABLE (Continued)

17
SX80J9
17-2
17-1
No Yes
YesNo
Is there audio
signal at pin
(29), (31) of
IC451?
Check IC451
and its
peripheral
circuit.
Check IC201,
NICAM unit,
tuner and its
peripheral
Set the sound
system in
position.
If problem,
check IC201
and its
peripheral
circuits.
NO NORMAL SOUND
Circuits to be checked:
•Sound control circuit.
•Sound out circuit.
•SIF circuit.
•S-convertor. Is audio output terminal J451
normal.
Yes
YesNo
No
Check TV sound. Is there audio signal at pins (6), (7) of
IC303?
Change the sound system.
Is sound normal? Check IC301,
IC302, IC303
peripheral
circuit.
Is there audio
signal at pins (1)
of IC1301?
Is there audio
signal at pins (2),
(4) of IC1301?
No Yes
Check IC303.
No Yes Yes
Check IC1305
and its
peripheral
circuit.
Check IC1304
and its
peripheral
circuit.
No
Check IC1301.
And check
speaker
connector (SA),
(SB) and (SS).
Set Sound-Volume
at maximum. Do
pins (19), (20),(22)
of IC303 work?
NoYes
Yes
Yes
Yes
Yes
No
No
Turn on Colour control. Does
colour appeart?
NO SPECIFIC COLOUR
D
Is only RF signal's colour abnormal?
Set Colour
control.
Turn on Colour system forced
switch. Does colour appear?
Fix cotrol to
coloured
system.
Check Q803,
IC451, IC5461
and their
peripherals.
No
Check D1606
and its
peripherals.
Check
IC801.
Check TU201,
IC201, IC451 and
their peripherals.
Yes
Yes
Yes
No
No
Is chroma input level of IC801
pin (13) proper?
Is FBP signal waveforms at pin
(25) of IC801 proper?
Are signal waveforms at TP801
and TP802 proper?
Are waveforms at pins (29) and
(30) of IC803 proper?
Is SCP signal waveform at pin (2) of
IC801 proper?
No
NO COLOUR
Check IC801
and IC4902.
Check IC803 and
its peripherals.
No
PAL, SECAM,
NTSC4.43:
Check X801, pin
(8) of IC801 and
their peripherals.
NTSC3.58:
Check X802, pin
(10) of IC801 and
their peripherals.
TROUBLE SHOOTINGTABLE (Continued) TROUBLE SHOOTINGTABLE (Continued)

18
SX80J9
18-2
18-1
SET SUB-
Colour Check IC801
and its
peripherals.
D
COLOUR PRODUCED
Colour in B/W mode. Colour control circuit detective. Colour saturation control does not
work. Improper colour.
Turn Colour control to minimum.
Does colour disappear?
Turn up and down Colour control.
Does colour gain go up and
down?
Can the sub-colour be readjusted
in service mode?
Turn on Colour system forced
switch. Does colour appear?
Killer circuit:
Check IC801
and its
peripherals.
Yes Yes
White
balance:
Check RGB
output circuit
of IC801.
Check IC801.
No
Yes No
Check IC801. Check D1606
and its
peripherals.
Yes No
NTSC3.58:
Check X802,
IC801 and
their
peripherals.
PAL,
SECAM,
NTSC4.43:
Check X801,
IC801 and
their
peripherals.
No
Check IC801
and PIP unit. Check IC803.
Yes No
No
Is chroma input level of IC801
proper?
Ref. Value: 100 ~ 500mVp-p.
Yes
Fix control to
coloured system.
No
Is SCP signal waveform at pin (2)
of IC801 proper?
Are signal waveforms at TP801 and TP802
proper? (Pins (10) and (11) of IC901)
Is FBP signal waveform at pin
(25) of IC801 proper?
Yes
Yes
Check Q803,
IC451,IC5461 and their
peripherals.
No
No
Are signal waveforms at pins (29)
and (30) of IC803 proper?
Yes
TROUBLE SHOOTINGTABLE (Continued)

19
SX80J9
19-2
19-1
SOLID STATE DEVICE BASE DIAGRAM
TOP VIEW
SIDEVIEW
28
1
15
14
20
1
11
10
16
1
9
8
30
1
16
15
16 9
18
1
6
2
5
3
4
116
32 17 8
1
5
4
42 22
21
1
EMITTER
COLLECTOR
BASE 123
ANODE
(RED)
CATHODE
(COMMON)
ANODE
(GREEN)
CATHODE
ANODE
BASE
COLLECTOR
EMITTER
SOURCE
GATE
DRAIN
STR
SK
132
64 33
16
18
9
128
56 29
1
24
12
13
1
22
11
12
1
32
16
17
1
17 9
1
28
14
15
1
20
10
11
48
1
25
24
VHiUPC358C/-1
VHiM24C08B/-1
VHiTOP209//-1
VHiBA7655A/-1
RH-iX0249CEZZRH-FX0024CEZZVHiTDA9141/-1VHiTDA4665/5E
RH-iX3081CEN3
VHiTA8776N/-1
VHiTA8772AN-1
VHiTA8859CP-1
VHiAN7108//-1
VHiLH64256C-1
VHiTA8814N/-1
VHiAN7397K/-1
VHiTC9090AN-1
RH-iX2451CEZZ VHiTDA9840T-1 VHiTDA9813T-1 VHiSAA7283G-1
VHiAN5285K/-1 VHiSTRM6821-1
RH-DX0486CEZZ
RH-DX0355CEZZ
RH-DX0452CEZZ
RH-DX0398CEZZ
RH-DX0336CEZZ
VHiM51497L/-1 VHiPST994C/-1 VHiAN5275//-1
VHiTA8256H/-1
VS2SK583///-1 VHiTA8427K/-1 VHiTA7348P/-1
VS2SD1887//1E
VS2SD2045//-1
RH-DX0449CEZZ
VS2SC4544LB1E
VS2SA1837//-1
VS2SA1015Y/1E
VS2SC1815GW-1
VS2SC1815YW-1
VS2SC2482//-1
VHiSi3121N/-1
VHiKA7805Pi-1
VHiKA7808Pi-1
VHiKA7809Pi-1
VHiSE120N//-1 PX0003PE PX0274CE
VHiTDA8443A-1
VHiTA1229N/-1
VHiTA1218AN-1 RH-iX2915CEZZ
VHiBA7357S/-1 VHiSDA9288X-1

20
87109654321
A
B
C
D
E
F
G
H
SX80J9
CHASSIS LAYOUT
PWB-F: P-IN-P UNIT
PWB-G: TEXT UNIT
PWB-D: DIG. COM UNIT
PWB-A: MAIN UNIT
PWB-E: NICAM/IGR UNIT
PWB-B: CRT UNIT
PWB-D
PWB-E
PWB-F
PWB-G