Philco PF2907 User manual

SERVICE MANUAL Colour Television
Product Code: 13007508
Original Version
Chassis Series: LB5-A
BB7J
FILE NO.
Model No. PF2907
Service Ref. No. PF2907-00
(Argentina)
Give complete “SERVICE REF. NO.” for
parts order or servicing. It is shown on the
rating plate at the cabinet back of the unit.
This T.V. receiver will not work properly in
foreign countries where the television trans-
mission system and power source differ from
the design specifications. Refer to the speci-
fication table.
Specifications
Power Source . . . . . . . . AC220V, 50Hz / 60Hz
Receiving System . . . . . PAL (M/M, N/N), NTSC (M/M)
Channel Coverage
Antenna mode VHF: CH02-CH13, UHF: CH14-CH69
CATV mode VHF band: CH01-CH13, Mid band: CH14-CH22
Super band: CH23-CH36, Hyper band: CH37-CH64
Ultra band: CH65-CH94 and CH100-CH125
Low mid band: CH95-CH99
Video IF . . . . . . . . . . . . . 45.75MHz
Aerial Input Impedance 75Ω
Input Terminals
AV1 (Video): Composite Video Input (Phone Jack) x 1
S-Video Input (Separated Y/C) DIN 4-pin Jack x 1
AV1 (Audio):L/R Stereo Input (Phone Jack) x 1 set
AV2 (Video):Composite Video Input (Phone Jack) x 1
AV2 (Audio):L/R Stereo Input (Phone Jack) x 1 set
AV3 (Video): Component Y, CB, CRInput (Phone Jack) x 1 set
AV3 (Audio): L/R Stereo Input (Phone Jack) x 1 set
Output Terminals
Video Monitor Output: Phono jack x 1
Audio Monitor Output: L/R Stereo Output (Phone Jack) x 1 set
Headphone Jack: Mini stereo jack x 1
Sound Output (RMS) . . . 5W + 5W
Speaker . . . . . . . . . . . . . . 6cm x 12cm x 2 pcs.
Dimensions . . . . . . . . . . . 758.5(W) x 594(H) x 486.5(D)mm
Weight . . . . . . . . . . . . . . . approx. 40 Kg
Specifications subject to change without notice.
TV/AVCH
VOL
MENU
VIDEO
LAUDIOR
AV2
IN
POWER

Contents
-2-
SafetyNotice ........................................................................... 2
ChassisBlockDiagram ................................................................... 3
ICBlockDiagrams..................................................................... 4-7
ServiceAdjustments................................................................... 8-17
CabinetPartsList....................................................................... 18
ChassisElectricalPartsList............................................................ 19-27
Safety Notice
SAFETY PRECAUTIONS
1: An isolation transformer should be connected in the
power line between the receiver and the AC line
when a service is performed on the primary of the
converter transformer of the set.
2: Comply with all caution and safety-related notes
provided on the cabinet back, inside the cabinet, on
the chassis or the picture tube.
3: When replacing a chassis in the cabinet, always
be certain that all the protective devices are
installed properly, such as, control knobs, adjust-
ment covers or shields, barriers, isolation resistor-
capacitor networks etc.. Before returning any
television to the customer, the service techni-
cian must be sure that it is completely safe
to operate without danger of 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 hazard-
ous X - RADIATION. To avoid such hazards, the high voltage must be maintained within specified limit. Refer
to this service 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 voltage 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 .

Chassis Block Diagrams
-3-
SIGNAL PROCESSING CIRCUIT

IC Block Diagrams
-4-
IC601 POWER SUPPLY IC (QTN6Q04-E)

IC Block Diagrams
-5-
IC201 < IF/Video/Chroma/Def./CPU > LA76933

-6-
IC Block Diagrams
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-7-
IC Block Diagrams
IC3401 <MTS> CXA2234QP

VOLUME +
VOLUME -
CHANNEL UP
CHANNEL DOWN
S1.00110111 S2.01111000
ADDRESS DATA
02 H-PHA 16
Item No. Item Data value
General
This set has an On-screen Service Menu system included in the CPU that allows remote operation for most of the
service adjustments.
2. Service Adjustments:
Press the CHANNEL UP/DOWN button on the remote
control handset to select the desired service menu
item you want to adjust.
Use the VOLUME + / - button to adjust the data. The
+ or - button will increase or decrease the data
sequentially.
3. Exit from the Service Menu
Press the MENU button to turn off the Service Menu
display.
The data which is set in the service mode is stored
into the memory IC automatically.
[ Service Mode Display ]
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.
IC802 (EEPROM) Replacement
When IC802 (EEPROM) is replaced, IC201 (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 ~ 11 for detailed information.)
Service Adjustments
-8-
MENU
TV/AVCH
VOL
MENU
VIDEO
LAUDIOR
AV2
IN
POWER
MENU

-9-
Service Adjustments
On-screen Service Menu
Following table shows the initial values which have been stored in the CPU ROM, and items for the service adjustments.
When IC802 (EEPROM) is replaced, check the bus data to confirm they are the same as below. The shaded menu should be
checked and be set up or readjusted according to the procedures described in the following pages.
Initial Setup Data marked with an ∗should be changed from Initial Value Data.
No. Item Initial value Range Description
01 RFAGC 17 00~63 RF AGC adjustment
02 H-PHA 09 00~31 H-PHASE adjustment (50Hz)
03 V-DC 22 00~63 Vertical position adjustment (50Hz)
04 V-SIZ 83 00~127 Vertical size adjustment (50Hz)
05 V-SCO 18 00~31 Vertical-S compensation (50Hz)
06 V-LIN 16 00~31 Vertical linearity adjustment (50Hz)
07 H-P60 +4 -16 ~ +15 Difference value of H-PHASE adjustment (60Hz)
08 V-P60 0 -32~ +31 Difference value of V-POSITION adjustment (60Hz)
09 V-S60 0 -64~ +63 Difference value of V-SIZE adjustment (60Hz)
10 VSC60 0 -16~ +15 Difference value of Vertical-"S" compensation (60Hz)
11 VLI60 0 -16~ +15 Difference value of Vertical linear adjustment (60Hz)
12 H-PHAZ -1 -16~ +15 Difference value of H-PHAZ adjustment (ZOOM)
13 V-SZZ5 +33 -64~ +63 Difference value of V-SIZE adjustment (ZOOM 50Hz)
14 V-SCOZ +7 -16~ +15 Difference value of Vertical-"S" compensation (ZOOM)
15 V-LINZ +4 -16~ +15 Difference value of Vertical linear adjustment (ZOOM)
16 V-SIZZ6 +31 -64~ +63 Difference value of V-SIZE adjustment (ZOOM 60Hz)
17 OSDHP 38 01~255 OSD horizontal remark position
18 OSDC 05 00~07 OSD contrast
19 EWDC 44 00~ 63 EW DC(50Hz)
20 EWAMP 06 00~ 63 EW Amp(50Hz)
21 EWTL 11 00~ 63 EW Tilt(50Hz)
22 EWCTP 05 00~ 15 EW Corner Top(50Hz)
23 EWCBM 03 00~ 15 EW Corner Bottom(50Hz)
24 EWAMZ +6 -32~ +31 Difference value of EW Amp (ZOOM 50Hz)
25 EWDCN 0 -32~ +31 Difference value of EW DC (60Hz)
26 EWAMN 0 -32~ +31 Difference value of EW Amp (60Hz)
27 EWTLN -1 -32~ +31 Difference value of EW Tilt (60Hz)
28 EWCTPN +1 -8~ +7 Difference value of Corner Top (60Hz)
29 EWCBN -2 -8~ +7 Difference value of Corner Bottom (60Hz)
30 EWAMZN +5 -32~ +31 Difference value of EW Amp (ZOOM 60Hz)
31 EWCOR 00 0,1 EW COR SW
32 V-SCP 03 0~7 V-SIZE COMP
33 H-SCP 07 0~7 H-SIZE COMP
34 SBIAS 31 00~127 Sub Bias adjustment
35 RBIAS 02 00~255 Red Bias adjustment
36 GBIAS 06 00~255 Green Bias adjustment
37 BBIAS 04 00~255 Blue Bias adjustment
38 RDRIV 84 00~127 Red Drive adjustment
39 GDRIV 08 00~15 Green Drive adjustment
40 BDRIV 78 00~127 Blue Drive adjustment
41 -- -- -- White balance (a lateral line)
42 DRV -- -- Bright and Dark of White balance adjustment
43 B-YD 11 00~15 B-Y DC Level
44 R-YD 11 00~15 R-Y DC Level
45 B-YDN 0 -16~ +15 Difference value of NTSC B-Y DC Level
46 R-YDN 0 -16~ +15 Difference value of NTSC R-Y DC Level
47 B-YDD -4 -16~ +15 Difference value of DVD B-Y DC Level( 50Hz)
48 R-YDD -3 -16~ +15 Difference value of DVD R-Y DC Level( 50Hz)
49 B-YDD6 -4 -16~ +15 Difference value of DVD B-Y DC Level( 60Hz)
50 R-YDD6 -4 -16~ +15 Difference value of DVD R-Y DC Level( 60Hz)

-10-
Service Adjustments
No. Item Initial value Range Description
51 G-YA 00 00,01 G-Y Angle
52 RBGB 10 00~15 R-Y/B-Y Gain Balance
53 RBAG 08 00~15 R-Y/B-Y Angle
54 G-YAN 00 00~01 Difference value of NTSC G-Y Angle
55 RBGBN +7 -8~+7 Difference value of NTSC R-Y/B-Y Gain Balance
56 RBAGN +4 -8~+7 Difference value of NTSC R-Y/B-Y Angle
57 RBADP 0 -8~+7 Difference value of DVD PAL R/B Angle
58 RBDN -2 -8~+7 Difference value of DVD NTSC R/B Angle
59 RBBDP 0 -8~+7 Difference value of DVD NTSC R/B Balance
60 RBBDN 0 -8~+7 Difference value of DVD PAL R/B Balance
61 COGV 03 00~03 Coring Gain
62 BLKS 01 00~03 BLk. str. start(W/Defeat)
63 BLKG 00 00~03 BLk. STR. gain
64 BRTA 00 00~01 Brt.Abl.Deft
65 BRST 00 00~01 Mid. Stp.Def
66 BRTH 00 00~07 Bright. Abl. Threshold
67 WPL 00 00~03 WPL Ope.Point(W/Defeat)
68 YGAM 00 00~03 Y Gamma Start
69 PRES 02 00~03 AV Mode Pre shoot adj
70 OVERS 03 00~03 AV Mode Over shoot adj.
71 RFCO +1 -2~+1 Difference value of RF Coring Gain
72 PRESN 00 00~03 RF Mode Pre shoot adj
73 OVERSN 03 00~03 RF Mode Over shoot adj
74 TINT -8 -16~+15 Tint
75 SHRF +5 -16~+15 Difference value of RF sharpness
76 SHRFD 0 -16~+15 Difference value of DVD PAL sharpness
77 CODP -10 -16~+15 Difference value of DVD PAL Colour
78 CODN 0 -16~+15 Difference value of DVD NTSC Colour
79 RFCOL +5 -16~+15 Difference value of TV Color
80 TIDN -8 -16~+15 Difference value of DVD NTSC Tint
81 SHRFS 0 -16~+15 Difference value of S-video Sharpness
82 TISN 0 -16~+15 Difference value of S-video NTSC Tint
83 COSPN 0 -16~+15 Difference value of S-video COLOR PALN
84 COSPM 0 -16~+15 Difference value of S-video COLOR PALM
85 COSN -1 -16~+15 Difference value of S-video COLOR NTSC
86 ZOMCOL -6 -16~+15 Difference value of Colour(ZOOM)
87 ZOMCON -8 -16~+15 Difference value of Contrast(ZOOM)
88 ZOMBRI -6 -16~+15 Difference value of Brightness(ZOOM)
89 TEXC +3 -4~+3 OSD TEXT Contrast
90 AUFL 00 00~01 Auto. Flesh
91 COOP 07 00~07 Color Killer opt.
92 VCOFRQ 00 0~255 VCO Fre
93 DEEM 00 00~01 De-emphasis TC
94 V-LVL 06 00~07 Video Level
95 VER -- -- VERSION and DATA
96 STRAP 04 00~07 Trap Test
97 IFOM-S 00 00~01 OVER MOD. SW
98 IFMN-S 00 00~01 AUDIO MONITOR SW,MONITOR/FM
99 IFTRPS 00 00~01 IC built-in SIF TRAP ON/OFF
100 OVMLVL 08 00~15 Video level coarse adjustment & MOD.operating dot setting
101 VBSW 00 00~01 VBLK SW
102 FBTS 00 00~01 FBPBLK. SW
103 HBLKL 05 00~07 H-Blanking Control Left
104 HBLKR 03 00~07 H-Blanking Control Right
105 AFCRF 00 00~01 Adj. of AFC Gain & gate (RF)

-11-
Service Adjustments
No. Item Initial value Range Description
106 VSURF 00 00~ 01 Adjustment of Vertical Sync. Separation Sensitivity (RF)
107 CDMRF 00 00~07 Vertical Count Down Loop Adjustment (RF)
108 AFCAV 01 00~01 Adjustment of AFC Gain & Gate (AV)
109 VSUAV 00 00~01 Adjustment of Vertical Sync. Separation Sensitivity (AV)
110 CDMAV 00 00~07 Vertical Count Down Loop Adjustment (AV)
111 HLK-T 00 0, 1 H-lock, V-det. (under RF mode)
112 HLK-V 00 0, 1 H-lock, V-Det. (under AV mode)
113 VCOADJ 04 00~ 07 C. Vco Adjust (according to NTSC and PAL-N)
114 GRAY 00 0, 1 GRAY MODE
115 CROSS 00 0~3 CROSS B/W
116 HL-TON 00 0~3 HALF TONE LEVEL
117 AVNCON 64 00~127 CONTRAST (no signal in AV)
118 AVNBRI 64 00~127 BRIGHT (no signal in AV)
119 POMT 12 00~127 POWER MUTE TIME
120 CHMT 05 00~31 CH MUTE TIME
121 SYST 03 00~255 System N
122 RELAY 125 00~255 RELAT ON TIME(8msecXN)
123 CCD 35 1~63 Horizontal Position of Closed Captioning
124 V-POSZ -1 -32~+31 V-POSITION(ZOOM)
125 EWDCZ +1 -32~+31 E/W DC ZOO
126 EWTLZ +4 -32~+31 E/W TILT ZOOM
127 EWCTPZ +7 -8~+7 E/W CORNER TOP ZOOM
128 EWCBZ +5 -8~+7 E/W CORNER BOTTOM ZOOM
129 VSCPZ 0 -4~+3 V.SIZE COMP(ZOOM)
130 HSCPZ 0 -4~+3 H.SIZE COMP(ZOOM)
131 AVTVTM 01 0~255 FEATHER MENU AV/TV CHAGNE
132 FM-G 01 00~01 FM gain
133 VSHIFT 00 0~15 V. SHIFT
134 CTRAP 04 0~7 C.TRAP adjust
135 CBPF 00 0~3 C.BPF adjust
136 C-KILL 00 0~1 C-KILL ON
137 G-YAMP 08 0~15 G-YAMP
138 B-YDPM 0 -16~+15 Different value of PALM B-Y DC level
139 R-YDPM 0 -16~+15 Different value of PALM R-Y DC leve
140 APCOFF 00 0~7 APC Offset
141 SYNCSP 02 0~7 Sync Sep Sence
142 YTH 00 0~3 Y TH
143 YGAIN 00 0~3 Y Gain
144 RWIDTH 00 0~3 R WIDTH
145 ROFSET 00 0~3 R OFSET
146 BWIDTH 00 0~3 B WIDTH
147 BOFSET 00 0~3 B OFSET
148 RGBTMP 00 0~1 RGB TEMP SW
149 VCOPLM 02 00~07 C.VCO Adjust (according to PAL-N)
150 OPTPOW 00 0~1 Last Power Status Option
151 OPTAVN 00 0~1 2AV or 3AV System Option

-12-
Service Adjustments
Item 01 [RFAGC] AGC
NOTE: Do not attempt this adjustment with weak signal.
1. Tune the receiver to most clearest (or strongest) VHF
station in your area. Set the brightness and contrast
controls to maximum. Set the colour control to mini-
mum.
2. Select Item No. 01 [RFAGC] in the service mode.
3. Change value until the snow noise just disappears.
4. Exit from the service mode.
Item 02 [H-PHA] HORIZONTAL CENTRE
1. Receive a monochrome circular pattern.
2. Set the brightness and contrast to normal.
3. Select Item No. 02 [H-PHA] in the service mode.
4. Change value to be optimum horizontal centre posi-
tion.
5. Exit from the service mode.
1. Receive a monochrome circular pattern.
2. Set the brightness and contrast to maximum.
3. Select Item No. 03 [V-DC] in the service mode.
4. Change value to be optimum vertical centre position.
5. Exit from the service mode.
Item 04 [V-SIZ] VERTICAL SIZE
1. Receive a monochrome circular pattern.
2. Set the brightness to normal and contrast to maximum.
3. Select Item No. 04 [V-SIZ] in the service mode.
4. Change value to be optimum vertical size.
5. Exit from the service mode.
Item 17 [OSDHP] OSD H-POSITION
1. Receive a monochrome circular pattern.
2. Set the brightness and contrast to normal.
3. Select Item No. 17 [OSDHP] in the service mode.
4. Change value to be proper OSD horizontal position.
5. Exit from the service mode.
Item 19 [EWDC] HORIZONTAL WIDTH
1. Receive a monochrome circular pattern.
2. Set the brightness and contrast to maximum.
3. Select Item No.19 [EWDC] in the service mode.
4. Change value to be proper horizontal width.
5. Exit from the service mode.
Item 123 [CCD] CAPTION H-POSITION
1. Tune receiver to a caption channel.
2. Check that CAPTION position is in the horizontal
center of the screen. If CAPTION center is too right or
left, perform steps 3-6. (See figure below.)
3. Select Item No. 123 [CCD] in the service mode.
4. Adjust data with + or - key for proper horizontal center.
5. Exit from the service mode.
Horizontal centre
Vertical centre
Vertical size
XXX XXXX XXXX XXX
AB
Caption H-position Adj.
A=B
Important Notice:
Do not attempt to adjust service adjustments not listed on below otherwise it may cause loss of performance and for
correct operation.
Item 03 [V-DC] VERTICAL CENTRE

-13-
Service Adjustments
Items 35-42 GREY SCALE
1. Receive a monochrome circular pattern.
2. Set the brightness and colour to normal, contrast to maximum.
3. Enter to the service mode.
4. Set each value of Item-35 RBIAS, 36 GBIAS, 37 BBIAS mode to 00. Set each value of Item-38 RDRIV, 40 BDRIV
mode to 64, 39 GDRIV to 08.
5. Select Item-41 mode to be one horizontal scanning line and turn the screen volume on the FBT to obtain just vis-
ible one coloured line.
6. Press the 1 (Red Bias +), 4 (Red Bias - ), 2 (Green Bias +), 5 (Green Bias - ), 3 (Blue Bias +) or 6 (Blue Bias - )
button to adjust the brightness of each colour until a dim white line produced. Please see the control button alloca-
tions in this mode.
7. Select Item-42 DRV mode to enter the white balance adjusting mode.
8. Press the 7 (Red Drive +), RECALL (Red Drive - ), 8 (Green Drive +), 0 (Green Drive - ), 9 (Blue Drive +) or
SLEEP (Blue Drive - ) button alternately to produce normal black and white picture.
9. Exit from the service mode.
10. Check for proper grey scale tracking at all brightness levels.
NOTE: If the grey scale adjustment is made after picture tube replacement, check the high voltage.
Red Bias -
Red Bias +
Green Bias -
Blue Bias +
Green Drive -
Green Drive +
Green Bias +
Blue Bias -
Press the MENU but-
ton to exit from service
mode
Red Drive -
Blue Drive +
Blue Drive -
Red Drive +
MAIN BOARD
SCREEN VR
(Under side)

-14-
Service Adjustments
No. Item Initial value Range
01 INPUT LEVEL 08 00~15
02 HIGH SEPARATION 21 00~63
03 LOW SEPARATION 34 00~63
Service Adjustment-2 (MTS Adjustment)
Following table shows the initial values of MTS Adjustment which have been stored in the CPU ROM.
1. Enter the Service Menu
While pressing the MENU button on the televi-
sion, press the Number Key 3 on the remote control
unit. The Service Menu now appear.
[ MTS Adjustment Mode ]
3. Exit from the Service Menu
Press the MENU button to turn off the Service Menu
display.
The data which is set in the service mode is stored
into the memory IC automatically.
[ Entering the Service Menu ]
[ Service Adjustment ]
[ Exit from the Service Menu ]
2. Service Adjustments:
Press the CHANNEL UP/DOWN button on the remote
control handset to select the desired service menu
item you want to adjust.
Use the VOLUME + / - button to adjust the data. The
+ or - button will increase or decrease the data
sequentially.
VOLUME +
VOLUME -
CHANNEL UP
CHANNEL DOWN
TV/AVCH
VOL
MENU
VIDEO
LAUDIOR
AV2
IN
POWER
MENU

-15-
SOUND LEVEL ADJUSTMENT
1. Receive the channel with audio 1KHz 100% modulation
signal.
2. Connect a DC Volt-Meter to TP-317(JD64) and the ground.
3. Set the Surround OFF. Press and hold the MENU button
on the TV set, and press “3” button on the remote control
transmitter to enter the service mode.
5. Adjust voltage to become DC 400mVrms±20mVrms at
TP-317(JD64) by pressing the VOLUME (+/ - ) button on
the remote control or TV set.
6. To exit from the service mode, press the MENU button.
STEREO SEPARATION ADJUSTMENT
1. Connect an oscilloscope:
Probe-A to TP-317(JD64).
Probe-B to TP-318(JE53).
2. Turn on the TV set, and receive the multi sound programme.
Set the Surround OFF.
3. Press and hold the MENU button on the TV set, and press
“3” button on the remote control transmitter to enter the
service mode.
4. Select “LOW SEPARATION” by pressing the CHANNEL
UP/DOWN button on the remote control or TV set.
5. Adjust the level of 300Hz at TP-317 (JD64) to become
minimum level by pressing the VOLUME (+/ - ) button
on the remote control or TV set.
Minimum leakage
300Hz
Service Adjustments
TP317
MAIN BOARD
MAIN BOARD
JD64 JE53
TP-317(R)

TV/AVCH
VOL
MENU
VIDEO
LAUDIOR
AV2
IN
POWER
-16-
Service Adjustments
To return to normal TV mode, press the MENU button on
the TV set or remote control handset. (Or will automati-
cally return to normal TV mode after 5 seconds.)
FINE TUNING - +
Fine tuning service mode
Fine tuning data value will be automatically stored in
memory.
Service Adjustment-3
FINE TUNING
This adjustment is used to do a fine tuning of the channels with poor reception after they have been stored by the
automatic tuning.
This function is available for one channel only and the fine-tuned channel is memorized into IC802 (EEPROM).
1. Enter the Service Menu
While pressing the MENU button on the television,
press the “4” or MENU button on the remote control
unit. The Service Menu now appear.
2. Service Adjustments:
Press and hold the VOLUME (+/ - )button on the
remote control handset or TV set to make fine tuning
adjustment. Press and hold the + button for higher
frequency tuning, and press and hold the
- for lower
frequency tuning.
[ Entering the Service Menu ]
[ Service Adjustment ]
6. Select “HI SEPARATION” by pressing the CHANNEL
UP/DOWN button on the remote control or TV set.
7. Adjust the level of 4KHz at TP-318 (JE53) to become
minimum level by pressing the VOLUME (+/ - ) button
on the remote control or TV set.
8. Repeat steps 4 to 7 for best separation.
9. To exit from the service mode, press the MENU button.
[ Exit from the Service Menu ]
VOLUME +
VOLUME -
Minimum leakage
4KHz
TP-318 (L)
MENU

-17-
Service Adjustments
Service Adjustment-4
FOCUS ADJUSTMENT
1. Receive the monochrome circular pattern.
2. Set the brightness to normal and contrast
to maximum.
3. Adjust the focus control on the F.B.T. for
the best focus on the screen centre.
FOCUS VR (Upper side)
This TV set has a built-in power supply protection circuit.
It is provided to protect the TV set in case of a power supply circuit malfunctions. When something abnormality occurs
during TV reception, the TV set goes to the stand-by mode.
When an abnormality occurs during TV reception, it causes pin 23 of the CPU to go continually Low voltage for
about one second. The CPU detects that this has occurred and outputs the signal from pin 36 to switch off the
power supply lines.
Releasing the protective circuit and restoring power supply
To release the protective circuit and restore power supply, turn the power to the TV set OFF and then ON again via
either the main power switch or the ON-OFF button on the remote control. This will work only if the power supply trou-
ble was temporary. If there is permanent trouble such as a damaged circuit, power cannot be restored and the circuit
will have to be repaired.
Protection Circuit
HIGH VOLTAGE CHECK
Note: +B (+140V) Voltage and Grayscale Adjustment must be completed before attempting High Voltage Check.
1. Connect high voltage voltmeter negative lead to ground, and connect + lead to anode of picture tube.
2. Tune receiver to an active channel and confirm TV is operating properly.
3. The high voltage must be 31KV ± 1.5KV and less than 33.5KV at 0 beam current (Brightness and contrast minimum
setting).
Note: If the picture tube is replaced, check the high voltage.
+B POWER SUPPLY CHECK
1. Connect a DC voltmeter to TP-B and the
ground.
2. Set the brightness to normal and contrast
to maximum.
3. Tune the receiver to an active channel
and synchronized picture.
4. The +B voltage must be 140± 2.0 volt DC.
TP-B

TV/AVCH
VOL
MENU
VIDEO
LAUDIOR
AV2
IN
POWER
-18-
Note: Parts order must contain Service Ref. No., Part No., and descriptions.
8
9
10
Cabinet Parts List
29-bb7e
6
7
1
2
4
5
3
1 1AA2BUM0557-- BUTTON POWER-BC2E
1S00620 COIL SPRING-D8HA
2 1AA2DEM0446-- DEC IND-BC2E
3 1AA2BUM0556-- BUTTON UNITED-BB7J
4 1AA2CAM0594A- CABINET FRONT-BB7J
5 1AA2BAA0035-- BADGE PHILCO-C4BS
6 1AA2CBM0433-- CABINET BACK-BB7E
7 1AA6P4S3230-- LABEL RATING-BB7J
8 1AV0U10B30304 ASSY,REMOCON JXMTH
9 1AA2RCM0226-- RC-BATTERY LID-JXMTA
10 1AV4U19B00700 ANTENNA CONVERTER
or 1AV4U19B00701 ANTENNA CONVERTER
1LG6P1P0179-A INSTRUCTION MANUAL-BA7J
Key No. Description Key No. Description
Part NO. Part NO.

Chassis Electrical Parts List
Product safety should be considered when a component replacement is made in any area of a receiver.
Components indicated by a
!
mark in this parts list and the circuit diagram show components whose value have
special significance to product safety. It is particularly recommended that only parts specified on the following parts
list be used for components replacement pointed out by the mark.
Note: Parts order must contain Service Ref. No., Part No., and descriptions. The main PCB unit will be supplied without tuner and
flyback transformer. They should be ordered separately.
Read description in the Capacitor and Resistor as follows:
CAPACITOR
CERAMIC 100P K 50V
Rated Voltage
Tolerance Symbols:
Less than 10pF
A : Not specified B : ±0.1pFC : ±0.25pF
D : ±0.5pFF : ±1PFG : ±2pF
R : ±0.25-0pFS : ±0-0.25pFE : +0-1pF
More than 10pF
A : Not specified B : ±0.1%C : ±0.25%
D : ±0.5%F : ±1%G : ±2%
H : ±3%J : ±5%K : ±10%
L : ±15%M : ±20%N : ±30%
P : +100-0%Q : +30-10%T : +50-10%
U : +75-10%V : +20-10%W : +100-10%
X : +40-20%Y : +150-10%Z : +80-20%
Rated value: P=pico farad, U=micro farad
Material:
CERAMIC...........Ceramic
MT-PAPER.........Metallized Paper
POLYESTER......Polyester
MT-POLYEST.....Metallized Polyester
POLYPRO..........Polypropylene
MT-POLYPRO....Metallized Polypropylene
COMPO FILM.....Composite film
MT-COMPO........Metallized Composite
STYRENE...........Styrene
TA-SOLID...........Tantalum Solid
AL-SOLID...........Aluminium Solid
ELECT................Electrolytic
NP-ELECT..........Non-polarised Electrolytic
OS-SOLID..........Aluminium Solid with Organic Semiconductive Electrolytic
DL-ELECT..........Double Layered Electrolytic
RESISTOR
CARBON 4.7K J A 1/4W
Rated Wattage
Performance Symbols:
A: General B: Non flammable Z: Low noise
Other: Temperature coefficient
Tolerance Symbols:
A: ±0.05% B: ±0.1% C: ±0.25% D: ±0.5%
F: ±1% G: ±2% J: ±5% K: ±10%
M: ±20% P: +5-15%
Rated value, ohms:
K: 1,000, M: 1,000,000
Material:
CARBON...........Carbon
MT-FILM............Metal Film
OXIDE-MT.........Oxide Metal Film
SOLID................Composition
MT-GLAZE.........Metal Glaze
WIRE WOUND...Wire Wound
CERAMIC RES..Ceramic
FUSIBLE RES....Fusible
NOTES:
Read description in the Capacitor and Resistor as follows:
CAPACITOR
CERAMIC 100P K 50V
Rated Voltage
Tolerance Symbols:
Less than 10pF
A : Not specified B : ±0.1pFC : ±0.25pF
D : ±0.5pFF : ±1PFG : ±2pF
R : ±0.25-0pFS : ±0-0.25pFE : +0-1pF
More than 10pF
A : Not specified B : ±0.1%C : ±0.25%
D : ±0.5%F : ±1%G : ±2%
H : ±3%J : ±5%K : ±10%
L : ±15%M : ±20%N : ±30%
P : +100-0%Q : +30-10%T : +50-10%
U : +75-10%V : +20-10%W : +100-10%
X : +40-20%Y : +150-10%Z : +80-20%
Rated value: P=pico farad, U=micro farad
Material:
CERAMIC...........Ceramic
MT-PAPER.........Metallized Paper
POLYESTER......Polyester
MT-POLYEST.....Metallized Polyester
POLYPRO..........Polypropylene
MT-POLYPRO....Metallized Polypropylene
COMPO FILM.....Composite film
MT-COMPO........Metallized Composite
STYRENE...........Styrene
TA-SOLID...........Tantalum Solid
AL-SOLID...........Aluminium Solid
ELECT................Electrolytic
NP-ELECT..........Non-polarised Electrolytic
OS-SOLID..........Aluminium Solid with Organic Semiconductive Electrolytic
DL-ELECT..........Double Layered Electrolytic
RESISTOR
CARBON 4.7K J A 1/4W
Rated Wattage
Performance Symbols:
A: General B: Non flammable Z: Low noise
Other: Temperature coefficient
Tolerance Symbols:
A: ±0.05% B: ±0.1% C: ±0.25% D: ±0.5%
F: ±1% G: ±2% J: ±5% K: ±10%
M: ±20% P: +5-15%
Rated value, ohms:
K: 1,000, M: 1,000,000
Material:
CARBON...........Carbon
MT-FILM............Metal Film
OXIDE-MT.........Oxide Metal Film
SOLID................Composition
MT-GLAZE.........Metal Glaze
WIRE WOUND...Wire Wound
CERAMIC RES..Ceramic
FUSIBLE RES....Fusible
NOTES:
-19-

-20-
Chassis Electrical Parts List
Location Part No. Description
Safety
Location Part No. Description
Safety
A013 013BA7E ELECTRICAL PARTS DIRECTORY
L901 1LB4L81B00700 COIL,DEGAUSSING
Q901 BXXAVB429TFU- CRT A68ELM021X003
SP901 1LB4A10B08800 SPEAKER,8
SP902 1LB4A10B08800 SPEAKER,8
W903 1LB4W30B10200 ASSY,WIRE GND CONNECTOR BA7E
W903 1LB4W30B10201 ASSY,WIRE GND CONNECTOR BA7E
A1000 1LG0B10Y0030A ASSY,PWB,MAIN BA7E
A101 1AV4F1BAM0340 TUNER,U/V
A1901 1AV4U20B32400 UNIT,REMOCON RECEIVER
A1901 1AV4U20B35900 UNIT,REMOCON RECEIVER
A1901 1AV4U20B63800 UNIT,REMOCON RECEIVER
C001 CEXLB1H470VEN ELECT 47U M 50V
C002 CEXLB1H4R7VDN ELECT 4.7 U M 50V
C003 CEXLB1H4R7VDN ELECT 4.7 U M 50V
C004 CEXLB1H2R2VDN ELECT 2.2 U M 50V
C005 CEXLB1E332VDN ELECT 3300U M 25V
C006 CF1H104KADANN POLYESTER 0.1U K 50V
C006 CF1H104KBEANN POLYESTER 0.1U K 50V
C007 CF1H104KADANN POLYESTER 0.1U K 50V
C007 CF1H104KBEANN POLYESTER 0.1U K 50V
C008 CF1H104KADANN POLYESTER 0.1U K 50V
C008 CF1H104KBEANN POLYESTER 0.1U K 50V
C009 CF1H104KADANN POLYESTER 0.1U K 50V
C009 CF1H104KBEANN POLYESTER 0.1U K 50V
C010 CEXLB1H100VEN ELECT 10U M 50V
C011 CEXLB1C101VDN ELECT 100U M 16V
C012 CEXLB1E4R7VDN ELECT 4.7U M 25V
C013 CK1H103KGQBNZ CERAMIC 0.01U K 50V
C1001 CEXLB1H1R0VDN ELECT 1U M 50V
C1002 CEXLB1H100VDN ELECT 10U M 50V
C1003 CEXLB1HR10VDN ELECT 0.1U M 50V
C1004 CEXLB1H100VDN ELECT 10U M 50V
C1005 CK1H103KGQBNZ CERAMIC 0.01U K 50V
C1006 CEXLB1H1R0VDN ELECT 1U M 50V
C1007 CEXLB1H100VDN ELECT 10U M 50V
C1009 CEXLB1H100VDN ELECT 10U M 50V
C101 CEXLB1C471VDN ELECT 470U M 16V
C1010 CKXAV1H104EAG CERAMIC0.1U K 50V
C1010 CK1H104KGQBNG CERAMIC 0.1U K 50V
C1011 CKXAV1H104EAG CERAMIC0.1U K 50V
C1011 CK1H104KGQBNG CERAMIC 0.1U K 50V
C1021 CEXLB1H100VDN ELECT 10U M 50V
C1022 CEXLB1H100VDN ELECT 10U M 50V
C1023 CEXLB1A471VDN ELECT 470U M 10V
C1031 CEXLB1C101VDN ELECT 100U M 16V
C1032 CK1H103KGQBNZ CERAMIC 0.01U K 50V
C1033 CEXLB1C101VDN ELECT 100U M 16V
C1034 CK1H103KGQBNZ CERAMIC 0.01U K 50V
C104 CEXLB1H330VDN ELECT 33U M 50V
C106 CEXLB1H220VDN ELECT 22 U M 50V
C1101 CEXLB1H1R0VDN ELECT 1U M 50V
C1102 CEXLB1H100VDN ELECT 10U M 50V
C1103 CEXLB1H100VDN ELECT 10U M 50V
C111 CK1H103KGQBNZ CERAMIC 0.01U K 50V
C1111 CPXLB1C100ZAN NP-ELECT 10U M 16V
C1112 CPXLB1C100ZAN NP-ELECT 10U M 16V
C112 CK1H103KGQBNZ CERAMIC 0.01U K 50V
C114 CK1H103KGQBNZ CERAMIC 0.01U K 50V
C121 CK1H103KGQBNZ CERAMIC 0.01U K 50V
C122 CEXLB1C101VDN ELECT 100U M 16V
C138 CK1H223KGQBNZ CERAMIC 0.022U K 50V
C171 CK1H152KGQBNZ CERAMIC 1500P K 50V
C172 CK1H103KGQBNZ CERAMIC 0.01U K 50V
C174 CC1H100DGQCNZ CERAMIC 10P D 50V
C1902 CEXLB1H220VDN ELECT 22 U M 50V
C201 CK1H103KGQBNZ CERAMIC 0.01U K 50V
C202 CF1H153JBEANN POLYESTER 0.015U J 50V
C203 CK1H103KGQBNZ CERAMIC 0.01U K 50V
C204 CEXLB1E100VDN ELECT 10U M 25V
C210 CEXLB1C101VDN ELECT 100U M 16V
C212 CC1H150JGQCNZ CERAMIC 15P J 50V
C213 RGFR000ZTCANZ MT-GLAZE 0.000 ZA 1/10W
C215 CPXLB1H1R0ZAN NP-ELECT 1U M 50V
C224 CK1E473KGQBNZ CERAMIC 0.047U K 25V
C225 CEXLB1HR47VDN ELECT 0.47 U M 50V
C226 CEXLB1HR47VDN ELECT 0.47 U M 50V
C227 CK1H103KGQBNZ CERAMIC 0.01U K 50V
C231 CH1H474JAGANN MT-COMPO 0.47U J 50V
C232 CK1H103KGQBNZ CERAMIC 0.01U K 50V
C233 CEXLB1C470VDN ELECT 47U M 16V
C234 CK1H103KGQBNZ CERAMIC 0.01U K 50V
C243 CK1H103KGQBNZ CERAMIC 0.01U K 50V
C244 CEXLB1A331VDN ELECT 330U M 10V
C245 CEXLB1H1R0VDN ELECT 1U M 50V
C246 CEXLB1HR47VDN ELECT 0.47 U M 50V
C247 CEXLB1H2R2VDN ELECT 2.2 U M 50V
C248 CEXLB1H1R0VDN ELECT 1U M 50V
C249 CEXLB1H1R0VDN ELECT 1U M 50V
C250 CEXLB1H1R0VDN ELECT 1U M 50V
C273 CK1E104KGQBNZ CERAMIC 0.1U K 25V
C291 CEXLB1C470VDN ELECT 47U M 16V
C3401 CEXLB1HR10VDN ELECT 0.1U M 50V
C3404 CPXLB1H4R7ZAN NP-ELECT 4.7U M 50V
C3406 CK1H123KGQBNZ CERAMIC 0.012U K 50V
C3407 CK1H562KGQBNZ CERAMIC 5600P K 50V
C3408 CEXLB1HR47VDN ELECT 0.47 U M 50V
C3411 CEXLB1HR47VDN ELECT 0.47 U M 50V
C3412 CEXLB1C470VDN ELECT 47U M 16V
C3413 CEXLB1H4R7VDN ELECT 4.7 U M 50V
C3414 CEXLB1C101VDN ELECT 100U M 16V
C3416 CPXLB1H4R7ZAN NP-ELECT 4.7U M 50V
C3417 CEXLB1H4R7VDN ELECT 4.7 U M 50V
C3418 CPXLB1H4R7ZAN NP-ELECT 4.7U M 50V
C3420 CK1H103KGQBNZ CERAMIC 0.01U K 50V
C3421 CK1H272KGQBNZ CERAMIC 2700P K 50V
C3422 CK1E473KGQBNZ CERAMIC 0.047U K 25V
C3423 CT1A3R3KDRANG TA-SOLID 3.3U K 10V
C3424 CPXLB1H4R7ZAN NP-ELECT 4.7U M 50V
C3426 CT1A100KDRANG TA-SOLID 10U K 10V