Philips 14PV385, 14PV135 Service Manual

TV-VCR Combination

Service

Service

Service

14PV135/01/07/58 14PV235/01/07/58 14PV385/01/07/39

Service Manual

Contents	Survey of versions:
Chapter	/01	PAL-BG, EURO
	/07	PAL I, UK/IRELAND
Sec. 1: Adjustment Procedure	/39	PAL/SECAM-BG+PAL/SECAM-L/L',FRANCE
Schematic Diagrams and CBA's	/58	PAL-BG/DK+SECAM-BG/DK,EAST-EURO

Exploded Views

Mechanical and Electrical Parts Lists

Sec. 2: Standard Maintenance

Mechanism Alignment Procedures

Disassembly / Assembly of Mechanism

Deck Exploded Views

For technical data reference is made to the Service Manual of 21PV385/01/07/39/58 3103 785 22330 (VN: 1B). The present manual states only the differences.

Safety regulations require that the set be restored to its original condition and that parts which are identical with those specified be used.

Published by BK 2004 Video Service Department Printed in the Netherlands c Copyright reserved Subject to modification GB 3103 785 22310

PREPARATION FOR SERVICING

[ 14PV135/ (01, 07, 58), 14PV235/ (01, 07, 58), 14PV385/ (01, 07, 39) ]

How to Enter the Service Mode

Caution: 1

1.Optical sensors system are used for Tape Start and End Sensor on this equipment. Read this page carefully and prepare as described on this page before starting to service; otherwise, the unit may operate unexpectedly.

Preparing: 1

1.Cover Q202 (START SENSOR) and Q201 (END SENSOR) with Insulation Tape or enter the service mode to activate Sensor Inhibition automatically.

Note: Avoid playing, rewinding or fast forwarding the tape to its beginning or end, because both Tape End Sensors are not active.

How to Enter the Service Mode

1.Turn the power on. (Use main power on the TV unit.)

2.Press [STANDBY/ON], [2], [7], [1], and [MUTE] buttons on the remote control unit in that order within 5 seconds. When entering the service mode, “4” will display at corners of the screen.

3.During the service mode, electrical adjustment mode can be selected by remote control key.

Details are as follows.

Key	Adjustment Mode

Picture adjustment mode: Press the MENU button to change from BRT (Bright), *CNT (Contrast), *COL

MENU (Color), *TNT(Tint) and SHP(SHARP). Press P+/P- key to adjust Initial Value. *Marked items are not necessary to adjust normally.

SECAM Black Level adjustment mode: See adjustment instructions page 1-6-13.

- Cut-Off adjustment mode: See adjustment instructions page 1-6-14.

White Balance adjustment mode: See adjustment instructions page 1-6-15.

0

C-Trap adjustment mode: See adjustment instructions page 1-6-12.

1

DSPC adjustment mode: See adjustment instructions page 1-6-12.

2

H adjustment mode: See adjustment instructions page 1-6-11.

Head switching point adjustment mode

3(Auto adjustment): See adjustment instructions page 1-6-17.

Auto record mode: Perform recording

4(15 Sec.)-->Stop-->Rewind (Zero return) automatically.

	Key	Adjustment Mode
	5	Head switching point adjustment mode
		(Manual adjustment): See adjustment
		instructions page 1-6-17.
	6	No need to use.
	7	No need to use.
	8	H. Shift adjustment mode: See adjust-
		ment instructions page 1-6-14.
	9	V.size/V. shift adjustment: See adjust-
		ment instructions page 1-6-13.
	Caution: 2

1.The deck mechanism assembly is mounted on the Main CBA directly, and SW211 (REC-SAFETY SW) is mounted on the Main CBA. When deck mechanism assembly is removed from the Main CBA due to servicing, this switch can not be operated automatically.

Preparing: 2

1.To eject the tape, press the STOP/EJECT button on the unit (or Remote Control).

2.When you want to record during the Service mode, press the Rec button while depressing SW211 (REC-SAFETY SW) on the Main CBA.

Q201	Q202
(END SENSOR)	(START SENSOR)

SW211

(REC-SAFETY SW)	MAIN CBA

1-3-2

T6450PFS

OPERATING CONTROLS AND FUNCTIONS

[ 14PV135/ (01, 07, 58), 14PV235/ (01, 07, 58) ]

The remote control

REC STANDBY/ON

1	2	3
4	5	6
7	8	9
SLEEP		SYSTEM
	0
STATUS/EXIT	PLAY	CLEAR
REW		FWD
	MENU
	STOP
		P
VOL	STILL	PROG
		P
MUTE

REC To record the TV channel selected at this moment or press repeatedly to start a One-Touch Recording.

STANDBY/ON To switch off or on, interrupt menu function.

0..9 Press to select channels at TVCR.

SLEEP To select the switch-off time in 30 minutes intervals.

SYSTEM Doesn’t work on this models. (14PV135/01, 07 / 14PV235/01, 07)

To change Video (colour) system. (14PV135/58 / 14PV235/58)

STATUS/EXIT To access or remove the TVCR’s on-screen status display. To exit on-screen

menus.

CLEAR To delete last entry. To clear a programmed recording (TIMER). To reset the elapsed time counter in the playback, recording or stop mode.

STILL To stop the tape and play back a picture step by step. (except for during fast forwarding and fast rewinding)

MENU To call up main menu of TVCR.

FWD - When tape playback is stopped, press to fast forward the tape at high speed. During playback, press to fast forward the tape while the picture stays on the screen. To store or confirm entry in the menu. Press to adjust the controls of TVCR menu.

REW- When tape playback is stopped, press to rewind the tape at high speed. During playback, press to rewind the tape while the picture stays on the screen.To return the cursor in the menu. Press to adjust the controls of TVCR menu.

PLAY - To play back a tape, select an item in the menu of TVCR.

STOP - To stop the tape, select an item in the menu of TVCR.

VOL+ VOL– To adjust the volume.

PROG P+ PROG P– To select the programme number. During playback, press to adjust the tracking.

MUTE To eliminate the TV’s sound. Press again to restore the volume.

Red button/ Green button/ Yellow button/ Blue button/ Doesn’t work on these models.

<14PV235>

: To switch Teletext on or off, or transparent mode.

: Enlarge font

: Select Teletext sub-page

: Recall hidden information

: Stop page changes

: Go back to start page.

1-4-3

T6450IB

Front of your TVCR

VIDEO AUDIO

P

STANDBY/ ON

	STANDBY/ON: To switch off or on, interrupt menu function.
	Volume: In connection with the button + – to adjust the volume.
P+	P- Programme number: To select the programme number. During playback, press to adjust the

tracking. To remove vertical jitter in a Still picture.

Record: To record the programme currently selected.

Playback: To play a recorded cassette.

Pause/ Stop, eject cassette: To stop the tape; If this key is depressed while in STOP, the cassette is then ejected from the machine.

When tape playback is stopped, press to fast forward the tape at hight speed.

When tape playback is stoped, press to rewind the tape at hight speed.

Sockets on the front:

White socket / AUDIO input socket: To connect a camcorder or a video game machine (audio).

Yellow socket / VIDEO input socket: To connect a camcorder or a video game machine (video).

Small socket / socket for headphones: To connect headphones.

Back of your TVCR

Aerial input socket: To connect the aerial cable.

EXT1/AV Scart socket :To connect a satellite receiver, decoder, video recorder, etc

Power switch: To switch the TV-Video Combi off.

Caution: If you switch off using the power switch, TIMER-recordings are impossible!

The control lights on the front of machine

STANDBY Standby light: lights up when the TV-Video Combi has been switched on by means of the main switch.

RECORD Recording light: lights up during recording.

FAST blink: RECORDING PAUSE; TIMER RECORDING NOT STAND-BY.

SLOW blink: TIMER RECORDING is stored in a timer block.

1-4-4

T6450IB

[ 14PV385/ (01, 07, 39) ]

The remote control

REC STANDBY/ON

1	2	3
4	5	6
7	8	9
SLEEP		SYSTEM
	0
STATUS/EXIT	PLAY	CLEAR
REW		FWD
	MENU
	STOP
		P
VOL	STILL	PROG
		P
SV/V+ SMART PICTURE		INDEX
MUTE

REC To record the TV channel selected at this moment or press repeatedly to start a One-Touch Recording.

STANDBY/ON To switch off or on, interrupt menu function.

0..9 Press to select channels at TVCR.

SLEEP To select the switch-off time in 30 minutes intervals.

SYSTEM Doesn’t work on this model. (14PV385/01, 07)

To change the Video (colour) system. (14PV385/39)

STATUS/EXIT To access or remove the TVCR’s on-screen status display. To exit on-screen

menus.

CLEAR To delete last entry. To clear a programmed recording (TIMER). To reset the elapsed time counter in the playback, recording or stop mode.

STILL To stop the tape and play back a picture step by step. (except for during fast forwarding and fast rewinding)

MENU To call up main menu of TVCR.

FWD - When tape playback is stopped, press to fast forward the tape at high speed. During playback, press to fast forward the tape while the picture stays on the screen. To store or confirm entry in the menu. Press to adjust the controls of TVCR menu.

REW- When tape playback is stopped, press to rewind the tape at high speed. During playback, press to rewind the tape while the picture stays on the screen.To return the cursor in the menu. Press to adjust the controls of TVCR menu.

PLAY - To play back a tape, select an item in the menu of TVCR.

STOP - To stop the tape, select an item in the menu of TVCR.

VOL+ VOL– To adjust the volume.

PROG P+ PROG P– To select the programme number. During playback, press to adjust the tracking.

SV/V+ Red button / To programme recordings with SHOW VIEW / VIDEO Plus+® or to alter / clear programmed TIMER recordings. Select Teletext function when you are in Teletext mode.

SMART PICTURE Green button / To call up preset picture settings.Select Teletext function when you are in Teletext mode.

Yellow button/ Select Teletext function when you are in Teletext mode.

INDEX Blue button / Search for the previous/next recording code on the tape in

combination with REW- / FWD - . Select Teletext function when you are in Teletext mode.

MUTE To eliminate the TV’s sound. Press again to restore the volume.

: Switch Teletext on or off, or transparent mode

: Enlarge font

: Select Teletext sub-page

: Recall hidden information

: Stop page changes

: Go back to start page

1-4-5

T6450IB

Front of your TVCR

VIDEO AUDIO

P

STANDBY/ON

STANDBY/ON: To switch off or on, interrupt menu function.

Volume: In connection with the button + – to adjust the volume.

P- Programme number minus: previous programme number

P+ Programme number plus: next programme number

Record: To record the programme currently selected.

Playback: To play a recorded cassette.

/ Pause/Stop, eject cassette: To stop the tape; If this key is depressed while in STOP, the cassette is then ejected from the machine.

When tape playback is stopped, press to fast forward the tape at hight speed.

When tape playback is stoped, press to rewind the tape at hight speed.

Sockets on the front:

White socket / AUDIO input socket: To connect a camcorder or a video game machine (audio).

Yellow socket / VIDEO input socket: To connect a camcorder or a video game machine (video).

Small socket / socket for headphones: To connect headphones.

Back of your TVCR

Aerial input socket: To connect the aerial cable.

EXT1/AV Scart socket : To connect a satellite receiver, decoder, video recorder, etc

Power switch: To switch the TVCR off.

Caution: If you switch off using the power switch, TIMER-recordings are impossible!

The control lights on the front of machine

STANDBY Standby light: lights up when the TVCR has been switched on by means of the main switch.

RECORD Recording light: lights up during recording.

FAST blink: RECORDING PAUSE; TIMER RECORDING NOT STAND-BY.

SLOW blink: TIMER RECORDING is stored in a timer block.

1-4-6

T6450IB

CABINET DISASSEMBLY INSTRUCTIONS

[ 14PV135/ (01, 07, 58), 14PV235/ (01, 07, 58), 14PV385/ (01, 07, 39) ]

Comparison Chart of Models and Marks

Model	Mark
14PV135/07	E
14PV235/07	F
14PV385/07	G
14PV135/01	H
14PV235/01	I
14PV385/01	J
14PV135/58	K
14PV235/58	L
14PV385/39	M

1. Disassembly Flowchart

This flowchart indicates the disassembly steps for the cabinet parts, and the CBA in order to gain access to item(s) to be serviced. When reassembling, follow the steps in reverse order. Bend, route and dress the cables as they were.

Caution !!

When removing the CRT, be sure to discharge the Anode Lead of the CRT with the CRT Ground Wire before removing the Anode Cap.

					[1] Rear Cabinet
		[2] Power Unit and Tray Chassis Unit
[5] H.V./Power					[3] Power Unit
Supply CBA
					[4] Tray Chassis Unit
					[6] Top Cover
					[7] Bottom Plate
					[8] Deck Unit
				[9] Text CBA [ F,G,I,J,L,M ]
					[10] Main CBA
					[11] CRT

2. Disassembly Method

				REMOVAL
	ID/			REMOVE/
				*UNHOOK/
	LOC.	PART	Fig.
				UNLOCK/RELEASE/		Note
	No.
			No.	UNPLUG/DESOL-
				DER
	[1]	Rear	1,2,5	4(S-1), 2(S-2),		1
		Cabinet		*CN804
		Power Unit		Anode Cap, *CN501,
		and Tray
	[2]		3,4,5	*CN551, *CN601,		2
		Chassis
				CRT CBA
		Unit
	[3]	Power Unit	3,5	*CN502,	*CN552,	3
				*CN602
		Tray
	[4]	Chassis	3	----------		-
		Unit
		H.V./Power
	[5]	Supply	3	6(S-3)		4
		CBA
	[6]	Top Cover	3	5(S-4), CL604		5
	[7]	Bottom	3	(S-5)		6
		Plate
				7(S-6), (S-7), (S-8),
	[8]	Deck Unit	3, 5	Desolder *(CN201,		7
				CL401, CL402,
				CL403)
		Text CBA --		(S-9), *CN751,
	[9]	[ F,G,I,J,L,	3, 5			8
				*CN752
		M ]
	[10]	Main CBA	3	4(S-10)		9
	[11]	CRT	4	4(S-11)		10
	↓	↓	↓		↓	↓
	(1)	(2)	(3)		(4)	(5)

(1): Order of steps in Procedure. When reassembling, follow the steps in reverse order.These numbers are also used as the identification (location) No. of parts in Figures.

(2): Parts to be removed or installed.

(3): Fig. No. showing Procedure of Part Location.

(4): Identification of part to be removed, unhooked, unlocked, released, unplugged, unclamped, or desoldered.

S=Screw, P=Spring, L=Locking Tab, CN=Connector, *=Unhook, Unlock, Release, Unplug, or Desolder

2(S-2) = two Screw (S-2)

(5): Refer to the following "Reference Notes in the Table."

1-5-6

T6450DC

Reference Notes in the Table

1.Removal of the Rear Cabinet.

Remove four screws (S-1) and two screws (S-2). Disconnect connector CN804 and remove the Rear Cabinet.

Caution !!

Discharge the Anode Lead of the CRT with the CRT Ground Wire before removing the Anode Cap.

2.Removal of the Power Unit and Tray Chassis Unit. Discharge the Anode Lead of the CRT with the CRT Ground before removing the Anode Cap. Disconnect the following: Anode Cap, CN501, CN551, CN601, and CRT CBA. Then pull the Power Unit and Tray Chassis Unit out backward.

3.Removal of the Power Unit.

Disconnect connectors CN502, CN552, and CN602. Then slide the Power Unit out.

4.Removal of the H.V./Power Supply CBA.

Remove six screws (S-3) and pull up the H.V./ Power Supply CBA.

5.Removal of the Top Cover.

Remove five screws (S-4) and CL604, and remove the Top Cover.

6.Removal of the Bottom Plate.

Remove a screw (S-5). Then slide the Bottom Plate out front.

7.Removal of the Deck Unit.

Remove seven screws (S-6), screw (S-7) and screw (S-8). Then, desolder connectors (CN201, CL401, CL402, CL403) and lift up the Deck Unit.

8.Removal of the Text CBA. [ F,G,I,J,L,M ]

Remove screw (S-9), and disconnect connectors CN751 and CN752. Then, lift the Text CBA up.

9.Removal of the Main CBA.

Remove four screws (S-10) and pull up the Main CBA.

10.Removal of the CRT.

Remove four screws (S-11) and pull the CRT backward.

S-1

[1] REAR CABINET

S-2

S-2

									Fig. 1
	S			-1

1-5-7

T6450DC

	S-1	S-2 S-1
			S-2
S-1			S-1
	[1] REAR CABINET		Fig. 2

1-5-8

T6450DC

				S-4
[2] Power Unit and Tray Chassis Unit
		S-4
				S-4
			S-4	CL604
		S-6	S-6
				[6] Top Cover
	S-3			S-6
				[ F,G,I,J,L,M ]
	S-3
S-3	S-3	S-6		[9] Text CBA
				S-9
		[8] Deck		S-10
		Unit	S-10	Text
		S-10
				Holder
[5] H.V./Power				S-10
Supply CBA
				[10] Main CBA
[3] Power Unit			S-7	S-8
	[4] Tray Chassis Unit			[7] Bottom Plate
			S-5
				Fig. 3
		1-5-9		T6450DC

S-11 Anode Cap

CRT CBA

S-11

S-11

S-11

[11] CRT

Fig. 4

1-5-10

T6450DC

ANODE	CRT CBA
		CN501B
CRT
		SCREEN	FOCUS
GND		CN502 CN501
H.V./POWER SUPPLY CBA
	CN552
		CL501A
			CN551
	CN601		CN602
	TO DEGAUSS
TO SPEAKER	COIL
MAIN CBA		CL403
CN804				[ F,G,I,J,L,M ]
				TEXT CBA
			CL302A
		CL401		CN901	CN902
		CL402	CL301A
			CN751
				CN752
		CN201	CL603A
	CYLINDER	CAPSTAN
	ASSEMBLY	MOTOR		CL604
			TO TOP COVER
FE HEAD		ACE HEAD	DECK UNIT
		ASSEMBLY
					Fig. 5
		1-5-11			T6450DC

ELECTRICAL ADJUSTMENT INSTRUCTIONS

[ 14PV135/ (01, 07, 58), 14PV235/ (01, 07, 58), 14PV385/ (01, 07, 39) ]

General Note:

"CBA" is abbreviation for "Circuit Board Assembly."

NOTE:

Electrical adjustments are required after replacing circuit components and certain mechanical parts. It is important to perform these adjustments only after all repairs and replacements have been completed.

Also, do not attempt these adjustments unless the proper equipment is available.

Test Equipment Required

1.PAL Pattern Generator (Color Bar, Monoscope, Black Raster, White Raster, Sympte)

2.SECAM Pattern Generator (Gray Scale)

3.AC Milli Voltmeter (RMS)

4.Alignment Tape (9965 000 14514), Blank Tape (E180)

5.DC Voltmeter

6.Oscilloscope: Dual-trace with 10:1 probe,

V-Range: 0.001~50V/Div,

F-Range: DC~AC-60MHz

7.Frequency Counter

8.Plastic Tip Driver

9.RF input (at each broadcasting system)

Receiving Channel : VHF Low Input level : 80dB V

10.Ext.input

FRONT VIDEO-IN JACK or REAR SCART JACK

How to Set up the Service mode:

NOTE:

How to set up the option code

1.Enter the Service mode.

2.Press the [STATUS/EXIT] button on the remote control unit. The option code appears on the display.

3.If needed, input the option code as shown below using number buttons on the remote control unit.

Model	Option Code
14PV135/01	0130
14PV135/07	0128
14PV135/58	0131
14PV235/01	0178
14PV235/07	0176
14PV235/58	0179
14PV385/01	2994
14PV385/07	2992
14PV385/39	2961

4.To reset the software, press [PAUSE] and [5] buttons on the remote control unit.

The option code is changed.

After replacing the IC202 (Memory) or Main CBA, the set value in IC202 (Memory) will be lost. So it is necessary to set up or adjust in the Service mode after its replacement.

Service Mode:

1.Turn the power on. (Use main power on the TV unit.)

2.Press [STANDBY/ON], [2], [7], [1], and [MUTE] buttons on the remote control unit in that order within 5 seconds.

-To cancel the service mode, press [STANDBY/ON] button on the remote control.

1-6-10

T6450EA

1. DC 105V (+B) Adjustment

Purpose: To obtain correct operation.

Symptom of Misadjustment: The picture is dark and unit does not operate correctly.

	Test point	Adj. Point	Mode	Input
	TP503			Color
	(+B),	VR601	RF
	TP504		(or Ext.)	Bar
	(GND)
	Tape	M. EQ.	Spec.
	---	DC Voltmeter,	+105±0.5V DC
		Plastic Tip Driver
	Note: TP503(+B), TP504(GND), VR601 --- H.V./Power
	Supply CBA

1.Connect the unit to AC Power Outlet. (exact AC230V)

2.Input a color bar signal from RF (or Ext.) input and leave it for at least 20 minutes.

3.Connect DC Volt Meter to TP503(+B) and TP504(GND).

4.Adjust VR601 so that the voltage of TP503(+B) becomes +105±0.5V DC.

2. H Adjustment

Purpose: To get correct horizontal position and size of screen image.

Symptom of Misadjustment: Horizontal position and size of screen image may not be properly displayed.

Test point	Adj. Point	Mode		Input
R590	P+/P-	Ext.		---
	buttons
Tape	M. EQ.		Spec.
---	Frequency Counter	15.625kHz±75Hz

Note: R590 --- H.V./Power Supply CBA

1.Connect Frequency Counter to R590.

2.Set the unit to the Ext. mode and no input is necessary. Enter the Service mode.

(See page 1-6-10.)

3.Operate the unit for at least 20 minutes.

4.Press [2] button on the remote control unit and select H-Adj Mode.

5.Press [P+/P-] buttons on the remote control unit so that the display will change [0] to [7.]

At this moment, choose display [0] to [7] when the

Frequency counter display is closest to 15.625kHz±75Hz.

6.Turn the power off and on again.

1-6-11

T6450EA

3. C-Trap Adjustment

Purpose: To get minimum leakage of the color signal carrier.

Symptom of Misadjustment: If C-Trap Adjustment is incorrect, stripes will appear on the screen.

Test point

Adj. Point

Mode

Input

J349F3

P+/P-

RF

Color Bar

(B-OUT)

buttons

(or Ext.)

Tape

M. EQ.

Spec.

---

Oscilloscope,

200mVp-p Max.

Pattern Generator

Figure

minimum

Fig. 1

Note: J349F3 (B-Out)--- Main CBA

1.Connect Oscilloscope to J349F3.

2.Input a color bar signal from RF (or Ext.) input. Enter the Service mode. (See page 1-6-10.)

3.Press [0] button on the remote control unit and select C-TRAP Mode.

4.Press [P+/P-] buttons on the remote control unit so that the carrier leakage B-Out (4.43MHz) value becomes minimum on the oscilloscope.

5.Turn the power off and on again.

4. How to measure the standard V-ENV value of Digital Studio Picture Control

Purpose: To set the recording condition appropriate for the recording tape.

Symptom of Misadjustment: Recording or playing back picture quality may fall. The picture will be tinted.

1.Insert a new tape (type: E180) for the DSPC alignment into the TV/VCR.

2.Input the black raster signal from the video input jack (VIDEO-IN).

3.Enter the Service Mode. (See page 1-6-10.)

4.To enter the DSPC mode, press [1] button on the remote control unit. Recording starts automatically and “DSPC” appears on the display.

TVCR

DSPC

				Fig. 2
VIDEO INPUT JACK (Ext. input)

5.Recording continues for 10 seconds in SP mode. Note: Since the reference value of LP V-ENV is computed from the reference value of SP V-ENV, there is no need to survey it.

6.The tape is rewinded to the recording start point.

7.The unit enters the play mode automatically and the V-ENV levels of each the reference value of SP mode and the computing value of LP mode are memorized into the EEPROM.

8."OK" or "NG" appears on upper left corner of the screen with blueback.

In case of "OK": "OK" (green) is indicated without ejecting tape.

In case of "NG": "NG" (red) is indicated with eject-

ing tape.

l

		TVCR						TVCR
	OK						NG

Normal

Abnormal

Fig. 3

1-6-12

T6450EA

5. SECAM Black Level Adjustment

Purpose: To set Black Level of the SECAM signal R- Y/B-Y to Ref. level.

Symptom of Misadjustment: If Black Level of the SECAM signal R-Y/B-Y is incorrect, the picture is bluish or reddish in grayscale compared with PAL signal.

	Test	Adj. Point	Mode	Input
	point
		P+/P-		SECAM
	J361G4		Ext.	Gray
		buttons
				Scale
	Tape	M. EQ.	Spec.
		Pattern Generator,
	---	Analog Oscilloscope (unus-		---
		able Digital Oscilloscope)

1.Degauss the CRT and allow CRT to operate for 20 minutes before starting the alignment.

2.Input the SECAM Gray Scale signal from Ext. input.

3.Enter the Service Mode. (See page 1-6-10.)

4.To enter the C/D/S mode, press [ -] on the remote control unit.

5.To select SBR (SECAM Black Level R-Y), press [6] button on the remote control unit.

6.Press [P+/P-] buttons to adjust Y signal to the black ref. level.

7.To select SBB (SECAM Black Level B-Y), press [7] button on the remote control unit.

8.Press [P+/P-] buttons to adjust Y signal to the black ref. level.

Y Signal
1H
Black REF. Level	1H
	5mV/Div (10:1 Prove)
1H	Fig. 4

6. V. Size Adjustment

Purpose: To obtain correct vertical height of screen image.

Symptom of Misadjustment: If V. Size is incorrect, vertical height of image on the screen may not be properly displayed.

Test point	Adj. Point	Mode	Input
Screen	P+/P-	RF	Monoscope
	buttons	(or Ext.)
Tape	M. EQ.	Spec.
---	Pattern Generator	90±5%

1.Enter the Service mode. (See page 1-6-10.)

Press [9] button on the remote control unit and select V-S Mode. (Press [9] button then display will change to V-P and V-S).

2.Input monoscope pattern and leave it for at least 20 minutes.

3.Press [P+/P-] buttons on the remote control unit so that the monoscope pattern is 90±5% of display size and the circle is round.

7. V. Shift Adjustment

Purpose: To obtain correct vertical position of screen image.

Symptom of Misadjustment: If V. position is incorrect, vertical position of image on the screen may not be properly displayed.

Test point	Adj. Point	Mode	Input
Screen	P+/P-	RF	Monoscope
	buttons	(or Ext.)
Tape	M. EQ.	Spec.
---	Pattern Generator	90±5%

1.Enter the Service mode. (See page 1-6-10.)

Press [9] button on the remote control unit and select V-P Mode. (Press [9] button then display will change to V-P and V-S).

2.Input monoscope pattern and leave it for at least 20 minutes.

3.Press [P+/P-] buttons on the remote control unit so that the top and bottom of the monoscope pattern are equal to each other.

1-6-13

T6450EA

8. H. Shift Adjustment

Purpose: To obtain correct horizontal position and size of screen image.

Symptom of Misadjustment: Horizontal position and size of screen image may not be properly displayed.

Test point	Adj. Point	Mode	Input
Screen	P+/P-	RF	Monoscope
	buttons	(or Ext.)
Tape	M. EQ.	Spec.
---	Pattern Generator	90±5%

1.Enter the Service mode. (See page 1-6-10.)

Press [8] button on the remote control unit and select H-P Mode.

2.Input monoscope pattern and leave it for at least 20 minutes.

3.Press [P+/P-] buttons on the remote control unit so that the left and right side of the monoscope pattern are equal to each other.

4.Turn the power off and on again.

9. Cut-off Adjustment

Purpose: To adjust the beam current of R, G, B, and screen voltage.

Symptom of Misadjustment: White color may be reddish, greenish or bluish.

	Test point	Adj. Point	Mode	Input
	Screen	Screen-Control,	RF	Black
		P+/P-buttons	(or Ext.)	Raster
	Tape	M. EQ.	Spec.
	---	Pattern Generator	See Reference
			Notes below

Notes:

Screen Control (FBT) --- H.V./Power Supply CBA

FBT= Fly Back Transformer

Use the Remote Control Unit

1.Degauss the CRT and allow CRT to operate for 20 minutes before starting the alignment.

2.Set the screen control to minimum position. Input the Black raster signal from RF (or Ext.) input.

3.Enter the Service Mode. (See page 1-6-10.) Dimmed horizontal line appears on the CRT.

4.To enter the C/D/S mode, press the [ -] button on the remote control unit.

5.To enter the CUT OFF (R) mode, press [1] button on the remote control unit.

6.Turn the screen control up until dimmed horizontal line appears.

7.Press the [P+/P-] buttons until the horizontal line becomes white.

8.To enter the CUT OFF (G) mode, press [2] button on the remote control unit.

9.Press the [P+/P-] buttons until the horizontal line becomes white.

10.To enter the CUT OFF (B) mode, press [3] button on the remote control unit.

11.Press the [P+/P-] buttons until the horizontal line becomes white.

12.Turn the screen control so that the horizontal line adjusted white looks lightly.

13.Turn the power off and on again.

1-6-14

T6450EA

10. White Balance Adjustment

Purpose: To mix red, green and blue beams correctly for pure white.

Symptom of Misadjustment: White becomes bluish or reddish.

	Test point	Adj. Point	Mode	Input
		Screen-Control,	RF	White
	Screen			Raster
		P+/P-buttons	(or Ext.)
				(APL 100%)
	Tape	M. EQ.	Spec.
	---	Pattern Generator,	See below
		Color analyzer
		Figure

Color Ajalyzer

Fig. 5

Note: Use remote control unit

1.Operate the unit more than 20 minutes.

2.Face the unit to east. Degauss the CRT using Degaussing Coil.

3.Input the White Raster (APL 100%).

4.Set the color analyzer to the CHROMA mode and after zero point calibration, bring the optical receptor to the center on the tube surface (CRT).

5.Enter the Service mode. Press [ -] button on the remote control.

6.Press [4] button on the remote control unit for Red adjustment. Press [5] button on the remote control unit for Blue adjustment.

7.In each color mode, Press [P+/P-] buttons to adjust the values of color.

8.Adjusting Red and Blue color so that the temperature becomes 8500K (x : 290 / y : 300) ±3%.

9.At this time, Re-check that Horizontal line is white. If not, Re-adjust Cut-off Adjustment until the Horizontal Line becomes pure white.

10.Turn off and on again to return to normal mode. Receive APL 100% white signal and Check Chroma temperatures become 8500K (x : 290 / y : 300) ±3%.

Note: Confirm that Cut Off Adj. is correct after this adjustment, and attempt Cut Off Adj. if needed.

11. Sub-Brightness Adjustment

Purpose: To get proper brightness.

Symptom of Misadjustment: If Sub-Brightness is incorrect, proper brightness cannot be obtained by adjusting the Brightness Control.

		Test point	Adj. Point	Mode	Input
		Screen	P+/P-	RF	SYMPTE
			buttons	(or Ext.)
		Tape	M. EQ.	Spec.
	---		Pattern	See below
			Generator
			Figure

White		Black
		This bar
	A B C	(A) just
		visible
		Fig. 6

Note: Bar (A) in Fig. 7 --- 0 IRE

1.Enter the Service Mode. (See page 1-6-10.)

Then input SYMPTE signal from RF (or Ext.) input and leave it for at least 20 minutes.

2.Press MENU button. (Each time MENU button is pressed, display will change BRT, CNT, COL, TNT, and SHP in that order.) Select BRT and press [P+/ P-] buttons so that the bar (A) in Fig. 6 is just visible.

3.Turn the power off and on again.

1-6-15

T6450EA

12. Setting for CONTRAST, COLOR, TINT and SHARP Data Values

General

1.Enter the Service mode. (See page 1-6-10)

2.Press MENU button. (Each time MENU button is pressed, display will change BRT, CNT, COL, TNT, and SHP in that order.)

CONTRAST (CNT)

1.Press "MENU" button on the remote control unit. Then select CNT display.

2.Press [P+/P-] buttons on the remote control unit so that the value of "CONTRAST" (CNT) becomes 83.

COLOR (COL)

1.Press "MENU" button on the remote control unit. Then select "COLOR" (COL) display.

2.Press [P+/P-] buttons on the remote control unit so that the value of "COLOR" (COL) becomes 65.

TINT (TNT)

1.Press "MENU" button on the remote control unit. Then select "TINT" (TNT) display.

2.Press [P+/P-] buttons on the remote control unit so that the value of "TINT" (TNT) becomes 68.

SHARP (SHP)

1.Press "MENU" button on the remote control unit. Then select "SHARP" (SHP) display.

2.Press [P+/P-] buttons on the remote control unit and select "1."

13. Focus Adjustment

Purpose: Set the optimum Focus.

Symptom of Misadjustment: If Focus Adjustment is incorrect, blurred images are shown on the display.

Test point	Adj. Point	Mode	Input
Screen	Focus Control	RF	Monoscope
		(or Ext.)
Tape	M. EQ.	Spec.
---	Pattern Generator	See below.

Note: Focus VR (FBT) --- H.V./Power Supply CBA

FBT= Fly Back Transformer

1.Operate the unit more than 30 minutes.

2.Face the unit to the East and degauss the CRT using a Degaussing Coil.

3.Input the monoscope pattern.

4.Adjust the Focus Control on the FBT to obtain clear picture.

1-6-16

T6450EA

14. Head Switching Position Adjustment

Purpose: Determine the Head Switching Position during Playback.

Symptom of Misadjustment: May cause Head Switching Noise or Vertical Jitter in the picture.

Note: Unit reads Head Switching Position automatically and displays it on the screen (Upper Left Corner).

Manual Adjustment

1.Enter the Service Mode. (See page 1-6-10.)

2.Playback the test tape (9965 000 14514).

3.Press the number [5] button on the remote control unit.

4.The Head Switching position will display on the

screen; if adjustment is necessary follow step 4. 7.0H (448 s) is preferable.

5.Press [P+/P-] buttons on the remote control unit if necessary. The value will be changed in 0.5H steps up or down. Adjustable range is up to 9.5H. If the value is beyond adjustable range, the display will change as:

Lower out of range: 0.0H Upper out of range: -.-H

6.Turn the power off and on again.

Auto Adjustment

1.Load the test tape (9965 000 14514) that have been recorded the Head Switching Position Value.

2.Enter the service mode.

3.Press [3] button on the remote control unit in the tape stop mode. The unit playback and adjust the Head Switching Position automatically.

4.The adjusting report appears on upper left corner of the screen with blueback.

In case of adjusting correctly: the Head Switching Position Value recorded in the test tape (9965 000 14514) is indicated with green.

In case of adjusting incorrectly: "NG" (red) is indi-

cated with ejecting tape.

l

		TVCR						TVCR
	7.0H						NG

Correct

Incorrect

Fig. 7

1-6-17

T6450EA

Adjustment Points and Test Points

H.V./Power Supply CBA Top View

Focus-control (Upper side)

Screen-control (Lower side)

R590

(H Adjustment)

TP503

+B

	VR601	TP504
	+B ADJ
		GND

Main CBA Top View

		TP007
	TP002	N-A-PB	J361G4
	RF-SW		(SECAM
	TP001		Black Level
			Adjustment)
	CTL
	TP008
	C-PB	TP003	J349F3
			B-OUT
	IC202	V-OUT

TEST POINT INFORMATION

: Indicates a test point with a jumper wire across a hole in the PCB.

TEST POINTS NOT USED IN ELECTRICAL ADJUSTMENTS

Test Point	Used in:	Page No.
TP001	Mechanical Alignment Procedures	2-3-3
TP002	Mechanical Alignment Procedures	2-3-3, 2-3-4
TP008	Mechanical Alignment Procedures	2-3-3, 2-3-4
TP503	Electrical Adjustment Instructions	1-6-10
TP504	Electrical Adjustment Instructions	1-6-10

1-6-18

T6450EA

(DECK ASSEMBLY)

AC HEAD ASSEMBLY

CONTROL

HEAD

7-7-1

CYLINDER ASSEMBLY

PG

SENSOR

DRUM M

MOTOR

LOADING

MOTOR

T6450BLS

Comparison Chart of Models & Marks

	NOTE FO R WI RE CONNECTORS:	TEST POINT INFORMATION	Model	Mark	Model	Mark
	1. PREFIX SYMBOL "CN" MEANS CONNECTOR.
		:INDICATES A TEST POINT WITH A JUMPER WIRE ACROSS A HOLE IN THE PCB.	14PV135/07	E	14PV385/01	J
" " = SMD	(CAN DISCONNECT AND RECONNECT.)
	2. PREFIX SYMBOL "CL" MEANS WIRE-SOLDER	:USED TO INDICATE A TEST POINT WITH A COMPONENT LEAD ON FOIL SIDE.	14PV235/07	F	14PV135/58	K
		:USED TO INDICATE A TEST POINT WITH NO TEST PIN.
	HOLES OF THE PCB.
	(WIRE IS SOLDERED DIRECTLY.)	:USED TO INDICATE A TEST POINT WITH A TEST PIN.	14PV385/07	G	14PV235/58	L

14PV135/01

H

14PV385/39

M

MAIN CBA

IC201

14PV235/01

I

AL+5V

(SERVO/SYSTEM CONTROL)

SW201

SW205

KEY-1

7

KEY SWITCH

D201

RS201

SW206

SW210

S-LED

REMOTE

14 REMOTEG,J,M

KEY-2

8

KEY SWITCH

SENSOR

WF3

C-POWER-SW 66

C-POWER-SW

TP001

TO POWER

CL402

CTL

97 CTL AMP-OUT

P-ON-H

SUPPLY BLOCK

CTL(+)

2

95 CTL(+)

P-ON-H

67

P-DOWN-L

CTL(-)

1

94 CTL(-)

P-DOWN-L

85

SW212

D202

REC

AL+5V

LD-SW

REC-LED 23

AL+5V

9 LD-SW

REC-LED

24

D204

STANDBY

IC202 (MEMORY)

10 ST-SENS.

SCL 71

6

SCL

4 END-SENS.

SDA 72

5

SDA

G,J,M

80 T-REEL

I2C-OPEN 45

7

CS

Q202

Q201

PI201

79 S-REEL

SCL

ST-SENS.

END-SENS.

Q205

SDA

TO

S-REEL

SENSOR CBA

SENSOR CBA

T-REEL

I2C-OPEN

TV BLOCK

(ST-SENSOR)

(END-SENSOR)

G,J,M

1ST-SND-H 21

1ST-SND-H

Q204

SP-MUTE

TIMER+5V

RESET

34 RESET

SP-MUTE 44

A-MUTE-H

A-MUTE-H 20

EXT-L

TO

CAPSTAN MOTOR

EXT-L 42

SCART-H 48

SCART-H

AUDIO BLOCK

SCART-MUTE

CN201

SCART-MUTE 29

SCL

CM+12V/+20.5V

1

CM+12V/+20.5V

P-ON+5V(3)

2

P-ON+5V(3)

SDA

CAPSTAN

M

C-FG

3

87 C-FG

C-F/R

4

78 C-F/R

REC-SAFETY

31

SW211

SCL

MOTOR

76 C-CONT

REC

C-CONT

5

SDA

FG-GND

6

G,J

SAFETY

81 LD-CONT

LD-CONT

7

DAV-L

D-CONT

8

77 D-CONT

DAV-L 83

D-PFG

9

90 D-PFG

D-REC-H

D-REC-H

M-GND

10

47

C-SYNC

AL+12V(1)

11

AL+12V(1)

C-SYNC

74

+33V

DV-SYNC

TO

VG

12

DV-SYNC

13

M

V-ENV

VIDEO BLOCK

V-ENV

6

C-ROTA

C-ROTA

15

RF-SW

M

RF-SW 18

TRICK-H

TRICK-H

33

SECAM-H

SECAM-H

32

01,( 14PV235/ ), 58 07, 01, ( 14PV135/ [ DiagramBlock Control Servo/System	BLOCK
14PV385/ ), 58 07,	DIAGRAMS
] ) 39 07, 01, (

NOTE FOR WIRE CONNECTORS:

1.PREFIX SYMBOL "CN" MEANS CONNECTOR. (CAN DISCONNECT AND RECONNECT.)

" " = SMD	2. PREFIX SYMBOL "CL" MEANS WIRE-SOLDER
	HOLES OF THE PCB.
	(WIRE IS SOLDERED DIRECTLY.)

Comparison Chart of Models & Marks

TEST POINT INFORMATION			Model	Mark	Model	Mark
:INDICATES A TEST POINT WITH A JUMPER WIRE ACROSS A HOLE IN THE PCB.
:USED TO INDICATE A TEST POINT WITH A COMPONENT LEAD ON FOIL SIDE.			14PV135/07	E	14PV385/01	J
:USED TO INDICATE A TEST POINT WITH NO TEST PIN.			14PV235/07	F	14PV135/58	K
:USED TO INDICATE A TEST POINT WITH A TEST PIN.
			14PV385/07	G	14PV235/58	L
REC-VIDEO SIGNAL	PB-VIDEO SIGNAL	MODE: SP/REC	14PV135/01	H	14PV385/39	M
			14PV235/01	I

MAIN CBA

TO

DAV-L

IC101 (VPS)

14 DAV-L

SERVO/SYSTEM

SDA

CONTROL BLOCK

6

SDA

SCL

7

SCL

TO

C-VIDEO

16 VPS-V

TV BLOCK

TU001

VIDEO OUT

17

G,J

TU002

G,J,M

IC401

VIDEO OUT

17

(VIDEO/AUDIO SIGNAL PROCESS)

65

43

46

68 69

78

79

SERIAL

(DECK ASSEMBLY)

Y. DELAY

JK701

DECORDER

CYLINDER ASSEMBLY

V-IN

CL401

LUMINANCE

R

P

SP

96

V(R)

1

VIDEO (R)

95

V-COM

2

HEAD

SIGNAL

HEAD

93

V(L)

3

WF4

PROCESS

AMP

VIDEO (L)

94

HEAD

48

TUNER1

AGC

JK703

BYPASS

8-7-1

50

TUNER2

V-OUT

19

SCART

54

V-IN

20

52

LINE

56

SCART

CHARA.

LINE

INS.

CCD 1H DELAY

Y

WF1

PB/EE

+

REC FM

Q703

BUFFER

AGC

TP002

MUTE

1/2

C

RF-SW

TUNER1

CHROMINANCE

TUNER2

SIGNAL

D-REC-H

PB/EE

D-REC-H

80

PROCESS

RF-SW

MUTE

R

P R

P

C-ROTA

RF-SW/C-ROTA

70

DV-SYNC

FBC

Y/C

D-V-SYNC

62

WF5

MIX

TO SERVO/SYSTEM

TP003

TU1-VIDEO

CONTROL BLOCK

TO		V-OUT	R	P			V-ENV	84	V-ENV
									C-SYNC
TV BLOCK	VIDEO	Q401					C-SYNC	67		M
		BUFFER 61
			AGC	VXO					TRICK-H
									SECAM-H
		63
							PB-H OUT
									IC471 (PAL/SECAM DECTECOTR)
		58	59	28	29	21	44
						WF2		28
		TP010						1
				X401		TP008
		GND						29
				4.43MHz		C-PB			PAL/SECAM
								17
						WF6		12	DETECTOR
								2
T6450BLV
								16
								14

Diagram Block Video

	NOTE FOR WIRE CONNECTORS:	TEST POINT INFORMATION
	1. PREFIX SYMBOL "CN" MEANS CONNECTOR.	:INDICATES A TEST POINT WITH A JUMPER WIRE ACROSS A HOLE IN THE PCB.
" " = SMD	(CAN DISCONNECT AND RECONNECT.)	:USED TO INDICATE A TEST POINT WITH A COMPONENT LEAD ON FOIL SIDE.
	2. PREFIX SYMBOL "CL" MEANS WIRE-SOLDER	:USED TO INDICATE A TEST POINT WITH NO TEST PIN.
	HOLES OF THE PCB.	:USED TO INDICATE A TEST POINT WITH A TEST PIN.	PB-AUDIO SIGNAL	REC-AUDIO SIGNAL	Mode : SP/REC
	(WIRE IS SOLDERED DIRECTLY.)

IC301 (VIDEO/AUDIO/CHROMA/DEFLECTION/IF)

MAIN CBA

IC151 (AMP)

TU001

WF7

TUNER1

AUDIO OUT 6

52

ATT

OUTPUT

LINE

50

7

1

G,J,M

53

AMP

MUTE

AUDIO OUT 21

AUDIO

5

54

TU002

IC702 (SW)

MUTE

TU1

CN804

14

13

TU2

SP

1

TO SERVO

12

SP-GND

2

/SYSTEM 1ST-SND-H

SW CTL

CONTROL

BLOCK

JK702

11

A-IN

IC701 (SW)

SP-MUTE

TO

SERVO/SYSTEM

SCART

CONTROL BLOCK

1

15

JK703

2

LINE

A-IN

2

5

SCART

4

IC401

3

LINE

A-OUT

1

(AUDIO SIGNAL PROCESS)

9-7-1

13

14

13

TUNER1

12

15 TUNER2

SW CTL

17

LINE

ALC

INV

DET

11 10

9

PB-ON

WF9

R

5

EQ

ALC

8

9

ATT

6

AMP

P

Q701

SP/LP-ON

SCART-H

TO SERVO

+5V

EXT-L

/SYSTEM

7

CONTROL

SCART-MUTE

BLOCK

Q854

(DECK ASSEMBLY)

CL402

AUDIO

3

A-PB/REC

Q855

1

AUTO

3

100

REC

HEAD

4

A-COM

2

BIAS

AMP

BIAS

AUDIO

6

AE-H/FE-H

OSC

ERASE

5

FE-H

Q856

HEAD

ACE HEAD ASSEMBLY

Q853(PB=ON)

SERIAL

AUDIO HD-SW

DECODER

SWITCHING

CONTROL

16

68 69

CL403

Q851

D-REC-OFF

FULL

+5V

1

FE-H

ERASE

Q852(PB=ON)

T6450BLA

2 FE-H-GND

HEAD

FE HEAD

Comparison Chart of Models & Marks

Model	Mark	Model	Mark
14PV135/07	E	14PV385/01	J
14PV235/07	F	14PV135/58	K
14PV385/07	G	14PV235/58	L
14PV135/01	H	14PV385/39	M
14PV235/01	I

JK151

HEADPHONE JACK

CL801

SP151

SPEAKER

12

LINE

AMP MUTE 11

TP007

N-A-PB

WF8

REC-ON

71

	A-MUTE-H	TO
	SDA
		SERVO/SYSTEM
	SCL
		CONTROL BLOCK

Diagram Block Audio

10-7-1

T6450BLT

TEST POINT INFORMATION

NOTE FOR WIRE CONNECTORS:

Comparison Chart of Models & Marks

F,G,I,J,L,M

:INDICATES A TEST POINT WITH A JUMPER WIRE ACROSS A HOLE IN THE PCB.

1. PREFIX SYMBOL "CN" MEANS CONNECTOR.

"

" = SMD

:USED TO INDICATE A TEST POINT WITH A COMPONENT LEAD ON FOIL SIDE.

(CAN DISCONNECT AND RECONNECT.)

Model

Mark

Model

Mark

:USED TO INDICATE A TEST POINT WITH NO TEST PIN.

2. PREFIX SYMBOL "CL" MEANS WIRE-SOLDER

14PV135/07

E

14PV385/01

J

:USED TO INDICATE A TEST POINT WITH A TEST PIN.

HOLES OF THE PCB.

IC901 (TELETEXT DECODER)

(WIRE IS SOLDERED DIRECTLY.)

14PV235/07

F

14PV135/58

K

14PV385/07

G

14PV235/58

L

MAIN CBA

14PV135/01

H

14PV385/39

M

ADC/

REC VIDEO SIGNAL

PB VIDEO SIGNAL

Mode : SP/REC

DATA SLICER

23

CN901

CN751

14PV235/01

I

37

5

Y-SW-OUT

5

DISPLAY

TIMING

36

1

V-SYNC

1

2

H-SYNC

2

IC301 (VIDEO/AUDIO/CHROMA/DEFLECTION/IF)

50

4

SDA

4

I2C I/F

49

3

SCL

3

40

CN902

CN752

TELETEXT

35

2

OSD-BLK

2

32

4

OSD-B

4

DECODER

33

6

OSD-G

6

34

3

OSD-R

3

X901

OSC/CLOCK	41	12MHz
GENERATOR
	42	OSC
					10	SERIAL
TEXT CBA					11	I/F
					43	INTELLIGENT
		(NO CONNECTION)		CN303		MONITORING
						LINE/PB
			INT.MONITOR	1			VIDEO	TO
					Q711	34
			I2C-OPEN	2	+5V	36	TU1-VIDEO	VIDEO BLOCK
	CN303 is used for		SDA	4		TUNER
						LINE/PB
	adjustment at factory		SCL	5

Q706

SYNC

TUNER

SEPARATION

X301

TO

2

C-OPEN

CLOCK

4.43MHz

I

CHROMA

CHROMA

CONTROL 32

SERVO/SYSTEM

SCL

TRAP

BPF

CONTROL BLOCK

CIRCUIT

SDA

Q704

Q702

JK703

IC703 (SW)

+5V

LUMA

PAL

SECAM

SLOW-SW

8

5

SIGNAL

DECODER

DECODER

4

PROCESS

3

RAPID-SW

16

V-SYNC

H-SYNC

CIRCUIT

2

PROCESS

PROCESS

OSD-B

7

15

CIRCUIT

CIRCUIT

BASE BAND

1

1H DELAY LINE

OSD-G

11

12

14

OSD-R

15

13

17

SW CTL

21

IC201

Q710

9

10 11

27

16

CL301A

BLUE

(SYSTEM CONTROL/OSD)

2

TO

TO

C-VIDEO

20

OSD MIX/RBG MATRIX/

15

1

GREEN

CRT/H.V. BLOCK

CL301B

C-VIDEO

TEXT-L 82

28

BLANKING

14

3

RED

VIDEO

56

BLOCK

OSD-R 64

30

OSD-G 63

WF11

CL302A

OSD-B 62

6

2

FBP

OSD-BLK 60

7

1

H-DRIVE

TO

WF10

SLOW-SW-IN 68

31

5

ACL

CRT/H.V. BLOCK

RGB CONT 61

13

CL302B

4

V-RAMP-FB

12

INV

RAPID-SW-IN 65

3

V-DRIVE

WF18 V-SYNC 59

WF17 H-SYNC 58

Diagram Block TV

11-7-1

T6450BLCRT

NOTE FOR WIRE CONNECTORS:

	1. PREFIX SYMBOL "CN" MEANS CONNECTOR.	TEST POINT INFORMATION
		:INDICATES A TEST POINT WITH A JUMPER WIRE ACROSS A HOLE IN THE PCB.
	(CAN DISCONNECT AND RECONNECT.)
	2. PREFIX SYMBOL "CL" MEANS WIRE-SOLDER	:USED TO INDICATE A TEST POINT WITH A COMPONENT LEAD ON FOIL SIDE.
	HOLES OF THE PCB.	:USED TO INDICATE A TEST POINT WITH NO TEST PIN.
	(WIRE IS SOLDERED DIRECTLY.)	:USED TO INDICATE A TEST POINT WITH A TEST PIN.
		REC VIDEO SIGNAL

H.V./POWER SUPPLY CBA	IC551 (V-DEFLECTION CONTROL)

			THERMAL
			PROTECTION
		7		5
Q533		AMP
H.DRIVE		1
			PUMP
WF12			UP
	Q551	T552
	H.OUTPUT
				VCC
		6	3	2

PB VIDEO SIGNAL Mode : SP/REC

WF13		DEFLECTION-YOKE
	5	V-
	4	DRIVE
	3	H-
	1	DRIVE
CN551

TO	+B
POWER SUPPLY
BLOCK	DEF+B			T551 F.B.T.	FOCUS VR
				HV	ANODE
				F
				S
JUNCTION-B			1	11
CBA			5	8	FOCUS
					SCREEN
CL302B	CN302	CN552	3	10

	2	2	FBP 2	7	ANODE
TO TV	1	1	H-DRIVE 1	SCREEN VR
				9
BLOCK	5	5	4
CL302A			ACL 5
	4	4	V-RAMP-FB 4	6
	3	3	V-DRIVE 3

CL501A		CL501B
1	HEATER	1
3	P-ON+160V	3

	CL301B	CN301
TO TV	3	3
BLOCK	1	1
CL301A	2	2

JUNCTION-C

CBA

				JK501
				FOCUS
				SCREEN
	CN502	WF14	WF15	GND
		Q501	Q502
RED	2	RED AMP
				R	V501
GREEN	4		GREEN AMP		CRT
				G
BLUE	3		BLUE AMP
				B
			Q503
			WF16	HEATER
				CN501
				GND

CRT CBA

Diagram Block .V.CRT/H

CAUTION

TEST POINT INFORMATION

CAUTION !

:INDICATES A TEST POINT WITH A JUMPER WIRE ACROSS A HOLE IN THE PCB.

FOR CONTINUED PROTECTION AGAINST FIRE HAZARD,

:USED TO INDICATE A TEST POINT WITH A COMPONENT LEAD ON FOIL SIDE.

Fixed voltage power supply circuit is used in this unit.

REPLACE ONLY WITH THE SAME TYPE T4A/250V FUSE.

:USED TO INDICATE A TEST POINT WITH NO TEST PIN.

If Main Fuse (F601) is blown, check to see that all components in the power supply

:USED TO INDICATE A TEST POINT WITH A TEST PIN.

NOTE :

Comparison Chart

of Models

& Marks

circuit are not defective before you connect the AC plug to the AC power supply.

NOTE FO R WI RE CONNECTORS:

Otherwise it may cause some components in the power supply circuit to fail.

The voltage for parts in hot circuit is measured using

"

" = SMD

1. PREFIX SYMBOL "CN" MEANS CONNECTOR.

Model

Mark

Model

Mark

hot GND as a common terminal.

(CAN DISCONNECT AND RECONNECT.)

2. PREFIX SYMBOL "CL" MEANS WIRE-SOLDER

14PV135/07

E

14PV385/01

J

HOT

COLD

HOLES OF THE PCB.

14PV235/07

F

14PV135/58

K

(WIRE IS SOLDERED DIRECTLY.)

14PV385/07

14PV235/58

L

TP503

TP504

G

SW601

+B

GND

14PV135/01

H

14PV385/39

M

POWER

F601

L601

D601 - D604

T601

14PV235/01

I

TO

T4A/250V

BRIDGE

LINE

6

14

+B

AC-CORD

RECTIFIER

FILTER

TO

Q206

CRT/H.V.

P-DOWN-L

CN601

BLOCK

(TO PIN85 OF IC201)

PS602

DEF+B

TO

13

DEGAUSSING

G,J,M

COIL

CM+12V/+20.5V

4

12

Q681

Q683

11

C-POWER-SW

(TO PIN66 OF IC201)

10

12-7-1

Q602

SWITCHING

2

CN602

CN603

CL603B

CL603A

9

2

AL+20.5V

2

2

2

TIMER+5V

G,J,M

11 AL+33V

11

11

11

AL+33V

8

AL+9V

8

8

8

AL+9V

1

8

7

AL+12V(2)

7

7

7

AL+12V(2)

3

AL+12V(1)

3

3

3

Q603

Q605

Q606

AL+12V(1)

LIMITER

+5V REG.

5

AL+5V

5

5

5

AL+5V

+8V REG.

12 P-ON+8V

12

12

12

P-ON+8V

Q682

6

6

Q607

6

P-ON-L

6

P-ON-H

4

P-DOWN-L

4

4

4

IC681

(TO PIN67 OF IC201)

JUNCTION-A

+5V

P-ON+5V(2)

REG.

4

1

CBA

Q684

Q608

+5V

P-ON+5V(3)

REG.

3

2

Q686

IC601

+5V

P-ON+5V(1)

REG.

ERROR

VOLTAGE DET

VR601

Q604

IC301

+B ADJ.

FEED

BACK

+5.7V P-ON-ON

55

REG.

39

T6450BLP

TOP

CL604

H.V./POWER S UPPLY

CBA

COVER

MAIN CBA

Diagram Block Supply Power