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FILE NO.
SERVICE MANUAL Colour Television Model No. PD2015
(Argentina)
Service Ref. No. PD2015-00
JXMRR
Specifications
Power Source . . . . . . . . .AC220V, 50Hz / 60Hz Product Code: 111339914
Receiving System . . . . . .PAL (M/M, N/N), NTSC (M/M)
Channel Coverage
Antenna mode VHF: CH02-CH13, UHF: CH14-CH69 Original Version
CATV mode VHF band: CH01-CH13, Mid band: CH14-CH22
Super band: CH23-CH36, Hyper band: CH37-CH64 Chassis Series: LA5-A
Ultra band: CH65-CH94 and CH100-CH125
Low mid band: CH95-CH99
Video IF . . . . . . . . . . . . . 45.75MHz
Aerial Input Impedance . . 75
Ext. Terminals Give complete "SERVICE REF. NO." for parts
Video inputs: Phono jack 2 (1Vp - p, 75) order or servicing. It is shown on the rating
Audio inputs: Phono jack 2 (436mVrms, more than 40K) plate at the cabinet back of the unit.
Headphone Jack (Mono): Mini jack 1
Sound Output (RMS) . . . . 2W
Speakers . . . . . . . . . . . 5 cm x 9 cm x 2 pc.
This T.V. receiver will not work properly in
Dimensions . . . . . . . . . 606 (W) 479 (H) 483 (D)mm
foreign countries where the television trans-
Weight . . . . . . . . . . . . . approx. 18.6 Kg
mission system and power source differ from
the design specifications. Refer to the specifi-
Specifications subject to change without notice. cation table.
F5ZS
Contents
Safety Notice . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2
Chassis Block Diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-4
IC Block Diagrams . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-7
Service Adjustments . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8-14
Purity and Convergence Adjustment . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15
Cabinet Parts List . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16
Chassis Electrical Parts List . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17-23
Safety Notice
SAFETY PRECAUTIONS
1: An isolation transformer should be connected in the 3: When replacing a chassis in the cabinet, always be
power line between the receiver and the AC line certain that all the protective devices are installed
when a service is performed on the primary of the properly, such as, control knobs, adjustment covers
converter transformer of the set. or shields, barriers, isolation resistor-capacitor net-
works etc.. Before returning any television to the
2: Comply with all caution and safety-related notes pro- customer, the service technician must be sure that
vided on the cabinet back, inside the cabinet, on the it is completely safe to operate without danger of
chassis or the picture tube. electrical shock.
X-RADIATION PRECAUTION
The primary source of X-RADIATION in television receiver is the picture tube. The picture tube is specially con-
structed to limit X-RADIATION emissions. For continued X-RADIATION protection, the replacement tube must be
the same type as the original including suffix letter. Excessive high voltage may produce potentially hazardous X
- RADIATION. To avoid such hazards, the high voltage must be maintained within specified limit. Refer to this ser-
vice manual, high voltage adjustment for specific high voltage limit. If high voltage exceeds specified limits, take
necessary corrective action. Carefully follow the instructions for + B1 volt power supply adjustment, and high volt-
age check to maintain the high voltage within the specified limits.
PRODUCT SAFETY NOTICE
Product safety should be considered when a component replacement is made in any area of a receiver.
Components indicated by mark in the parts list and the schematic diagram designate components in which
safety can be of special significance. It is particularly recommended that only parts designated on the parts list
in this manual be used for component replacement designated by mark . No deviations from resistance
wattage or voltage ratings may be made for replacement items designated by mark .
-2-
K1001 K1002A
REAR AV IN FRONT AV IN
VIDEO AUDIO VIDEO AUDIO
IC802
MEMORY
5 6
SDA SCL
3 4 32 ON-TIME
31 STANDBY
SP901
C-CAPTION IN IC001
15
IC801 AUDIO AMP. 7
Chassis Block Diagrams
MAIN SIGNAL PROCESSING CIRCUIT
CPU R LA4266_2W
19
QXXAVC479P 20
G 5
OSD SP902
21
B
EXT AUDIO IN
EXT VIDEO IN
22 BLK
-3-
1
SDA IIC BUS CONTROL
2 SCL K1921
ANT
HEADPHONE JACK
SELECTED VIDEO OUT
R
G
B
BLK
SCL
SDA
AUDIO OUTPUT
A101 X161 12 11 14 15 16 17 40 51 42 1
19
R
TUNER SAW IF IN Q901
5/6 IC201 20
G
(WITH PLL) FILTER B
CRT
LA76818A 21
T611B IF/VIDEO/CHROMA/DEFLECTION 23 27
CONVERTER T471
TRANS. FBT HV
REG.IC Q432
HORIZ-OUT
HORIZ.OUT
VERT.OUT
12V (MAIN LOW)
9V IC202 5V-2
20V (AUDIO) DEFLECTION YOKE
AC
POWER
130V (MAIN HIGH) REG.IC
CIRCUIT
24V (VERT) IC681 5VRC
IC501
LA78040
VERT-OUT
POWER ON/OFF OUT
CPU OSC IN 31
6 (STANDBY=LOW)
LED
OSC CPU OSC OUT
7 (RED)
SYSTEM CONTROL
POWER CIRCUIT
IC001 SOUND MUTE OUT
29
AUDIO AMP. (ACTIVE=HIGH) SDA
IC801 1 A101
2 SCL
RESET IN (RESET=LOW) TUNER
13 CPU
QXXAVC479P
KEY KEY SWITCH IN
12 AFT S-CURVE IN
Chassis Block Diagrams
SWITCH 10 IC201
C-CAPTION IN
15 IF/VIDEO/CHROMA
RC SIGNAL IN 22
OSD BLK OUT
28
RC PRE-AMP 19 OSD RED OUT
20
OSD GREEN OUT
-4-
21
OSD BLUE OUT
RELAY ON/OFF OUT FOR DEGAUSSING
23 HORIZ. SYNC. IN
(ON=HIGH) 18
DEFLECTION
VERT. SYNC. IN
17 CIRCUIT
27
3 4
POWER PROTECT IN
SCL
SDA
POWER CIRCUIT
(POWER ERROR=LOW) etc.
5 6
IC802
MEMORY
IC Block Diagrams
IC201 < IF/Video/Chroma/Def. > LA76818A
VOL
BPF
SW
DC
54
Audio Output SIF Input
DET
AMP
BPF
1
LIM
FM
SPLL
FM Output/Selected
53
SIF APC Filter
2
Audio Output
52
SIF Output
AGC
PIF AGC
3
IF
AGC
RF
51
RF AGC Output Ext. Audio Input
4
VIDEO
VIDEO
50
TRAP
PIF Input1 APC Filter
AMP
5
DET
VIF
49
PIF Input 2 VCO Coil 1
6
A2C
PLL
48
IF Ground VCO Coil 2
7
VCC 5V
47
IF Vcc VCO Filter
IF
8
IDENT
AFT
46
IF
FM Filter Video Output
9
45
10
AFT Output Black Level Detector
PEAKING
DELAY
VIDEO
CORING
TRAP
LINE
CLMP
SW
44
Internal Video Input (S-C IN)
11
Bus Data
BUS
V/C VCC
43
12
Video/Vertical Vcc
5V
Bus Clock
STRETCH
SYNC
BLACK
SEP
SW
CLMP
ABL
42
13
ABL External Video Input(Y-IN)
ON/OFF
REST
ACC
BPF
DC
41
Video/Vertical/BUS Ground
14
Red Input
CONTRAST
APC1
BRIGHT
CLAMP
OSD
40
15
Green Input Selected Video Output
VXO
DEMO
39
16
Blue Input Chroma APC1 Filter
TINT
PAL
SW
DDS
38
17
Fast Blanking Input 4.43 MHz Crystal
CONTRAST
BRIGHT
CLAMP
APC2
VCO
18
37
RGB Vcc Clamp Filter
VCC
36
Chroma APC2 Filter
19
Red Output
DRIVE/OUT-OFF
MATRIX
OSD
RGB
SECAM R-Y Input
SW
35
20
Green Output
CLAMP
DC ADS.
(Cr Input)
SW
SECAM B-Y Input
34
21
Blue Output
(Cb Input)
SYNC SW
fsc output or C
FSC/
33
CCD/Horizontal Ground
22
Sync output
1H DELAY
COLOR
CLAMP
32
23
Vertical Output CCD Filter
+
RAMP
VER
VER
SEP
VER
C/D
31
Ramp ALC Filter
24
CCD Vcc
ALC
LPF
VCC
1H
HOR
VCC
30
25
Horizontal/BUS Vcc Clock (4MHz) Outupt
VCC
H
1/256
AFC1
HOR
HOR
VCO
C/D
29
26
Horizontal AFC Filter VCO IREF
SHIFTER
PHASE
AFC2
HOR
OUT
FBP
28
27
Horizontal Output Flyback Pulse Input
-5-
1K
SIF
Data Clock APC 1000p
10p Filter 0.01u
SIF.Out SIF.In
11 12 52 54 53
500K LIM FM Gain Deem-TC
BUS Det AMP 1bit 1bit
to BUS Line Snd Sound 500K FM
Interface Det Amp
BPF BPF Det FM
Amp + De- Out
Amp emph 2
SIF -
IC Block Diagrams
VCO FM.Level
5bit
0.01u
SIF. Sys pre-
PIF VIF AMP 2bit scaller + 9
In1 APC - +
5 2.5V FM Mute FM
IF In
1u
OSC Det Chroma Filter
SAW VIF 1 VIF 2 VIF 3 1 bit
C/D C/D
6 Video
PIF Det Video
In2 Sound Out
Amp 46
Trap
IF To Audio in
IF AGC B/N +
9V Video.Level Ident BUS 51
Drive INV
IC201 LA76818A
10u
3bit
Input VOLUME
30K
Select (ATT) 1 Audio.out
RF 2ndIF IF
RF AGC 4
-6-
Out + AGC AGC AGC
A.SW VOLUME A.Fil.Def
Chroma 1bit
120K
1bit Filter
RF AGC VCO
Delay
6bit A.MUTE VOLUME VOLUME
Buzz D/A 7bit
Canceller 1bit
IF AGC
Def Lock 47
IF VCC 1bit -/4 Det + VCO
8 VIF VCO VCO Filter
+
Counter Ident
0.47u
Alignment
+/4
+ To To Phase
BUS Reset VIF.Sys
- BUS Pulse Detector
2bit
IF (6 Vcc)/7 Vcc
GND VIF Chroma
7 APC VCO Counter
100K
Det AFT
PLL Pull-in SW AFT 10
0.1u
3 50 48 49
100K
APC VCO VCO
0.022u PIF 330 COIL1 COIL2
AGC Filter
0.47u +
VCO.Coil
IC Block Diagrams
IC001 < Audio AMP. > LA4266-E
AMP
30K
300 POWER
PRE
NC NC FILTER GND GND VCC NC
1 2 3 4 5 6 7 8 9 10
INPUT NFL OUT
PUT
IC501 < Vertical Output > LA78040N, TDA9302H
Thermal
Protection
-
AMP
+
Pump
Up
1 2 3 4 5 6 7
Ver. OUTPUT
GND
PUMP UP
Vcc
INVERTING
NON INV.
STAGE Vcc
OUTPUT
INPUT
INPUT
OUT
-7-
Service Adjustments
General
This set has an On-screen Service Menu system included in the CPU that allows remote operation for most of the
service adjustments.
IC802 (EEPROM) Replacement
When IC802 (EEPROM) is replaced, IC801 (CPU) will automatically write the initial reference data into IC802 for basic TV operation.
However, the bus data should be checked and some bus data should be set up before attempting the service adjustments. (See
pages 9 ~ 10 for detailed information.)
Initial Bus Data Setup
Note: When IC802 (EEPROM) is replaced, following Service Menu should be set up for proper TV operation before attempting the
service adjustments.
NO.01 RFAGC (Adjust the data 06 to10) NO.82 CHMT (Adjust the data 12 to 05) NO.308 R08 (Adjust the
data FF to 21)
NO.05 V-SCO (Adjust the data 17 to 11) NO.84 RELAY (Adjust the data 80 to 20) NO.309 R09 (Adjust the
data FF to 95)
NO.06 V-LIN (Adjust the data 15 to 16) NO.85 CCD (Adjust the data 26 to 31) NO.310 R10 (Adjust the
data FF to 50)
NO.11 VLI60 (Adjust the data +1 to 0) NO.300 R00 (Adjust the data FF to 93) NO.311 R11 (Adjust the
data FF to 00)
NO.19 RDRIV (Adjust the data 63 to 64) NO.301 R01 (Adjust the data FF to 0E)
NO.20 GDRIV (Adjust the data 07 to 08) NO.302 R02 (Adjust the data FF to 00) NO.371 R71 (Adjust the data FF to 00)
NO.21 BDRIV (Adjust the data 63 to 64) NO.303 R03 (Adjust the data FF to 00) NO.372 R72 (Adjust the data FF to A2)
NO.24 B-YD (Adjust the data 10 to 08) NO.304 R04 (Adjust the data FF to 01)
NO.25 R-YD (Adjust the data 10 to 08) NO.305 R05 (Adjust the data FF to 00)
NO.68 AFCAV (Adjust the data 00 to 01) NO.306 R06 (Adjust the data FF to 00)
NO.81 POMT (Adjust the data 12 to 08) NO.307 R07 (Adjust the data FF to 00)
Service Adjustment-1
1. Enter the Service Menu
While pressing the MENU button on the television, press the Number Key 2 on the remote control unit.
The Service Menu now appear.
CH
MENU
S1.00110000 S2.01111000
ADDRESS DATA
02 H-PHA 08
MENU
Item No. Item Data value
[ Service Mode Display ]
CHANNEL UP
2. Service Adjustments:
Press the CHANNEL UP or CHANNEL DOWN
button on the remote control handset to select the
desired service menu item you want to adjust.
VOLUME +
Use the VOLUME + or - to adjust the data. The + or VOLUME -
- button will