SONY AG-3 Service Manual

SERVICE MANUAL

AG3 CHASSIS

MODEL

COMMANDER DEST.

CHASSIS NO.

MODEL

COMMANDER DEST. CHASSIS NO.

KV-ES38M61 RM-916 GE

SCC-P35B-A

		DRC-MF
			VIDEO
			TITLE
		PROGR +
		PROGR –
	PIC	SOUND
	MODE	MODE	SURROUND
			PROGR
FAVORITE			INDEX
.		MENU	PROGR
	ENTER
PRESET	VTR 1 2 3 DVD

TV

TRINITRON ® COLOR TV

KV-ES38M31/ES38M61/ES38M90/ES38M91

RM-916

SECTION 6

CIRCUIT ADJUSTMENTS

6-1. ADJUSTMENTS WITH COMMANDER

Service adjustments are made with the RM-916 that comes with this unit.

a. ENTERING SERVICE MODE

This operation sequence puts the unit into service mode.

n [DISPLAY] n 5 n

n [POWER]

VOL (+)

The screen display is :

Device Name

Item Name

Marking of virgin NVM

Item No

Data

Mode

GEO

00

VSZ

29

p

SERVICE 50

035Q

0

5.8M

59

FF

000A

PAL,SECAM :50

Suffix No

(OEM Code) NTSC :60

Software version Total Power-On time (hours)

b. METHOD OF CANCELLATION FROM SERVICE MODE

Set the standby condition (Press [POWER] button on the commander), then press [POWER] button again, hereupon it becomes TV mode.

c. METHOD OF WRITE INTO MEMORY

1)Set to Service Mode.

2)Press [1] (UP) and [4] (DOWN), select an item of adjustment.

3)Press [MUTING] button and it will indicate WRITE on the screen.

4)Press [0] button to write into memory.

d. MEMORY WRITE CONFIRMATION METHOD

1)After adjustment, pull out the plug from AC outlet, and then plug into AC outlet again.

2)Turn the power switch ON and set to Service Mode.

3)Call the adjusted items again to confirm adjustments were made.

The screen display is :

1, 4	Select the adjustment item.
↓
3, 6	Raise/lower the data value.
↓	Writes.
[MUTING]
↓
-	Executes the writing.
7, -	All the data becomes the values in memory.
8, -	All user control goes to the standard state.
5, -	Service data initialization (Be sure not to use
	usually.)

[DISPLAY], - Write 50Hz adjustment data to 60Hz, or vice

	versa.
2, -	Write 50Hz adjustment data to 60Hz, or vice
	versa.
	Copy and write all data.
Cursor +/-
	example:
	GEO	00	VSZ
	↕
	DAC	00	HCT

6-2. ADJUSTMENT METHOD

Item Number 00 of device GEO

This explanation uses V-size as an example.

1.Select “GEO 00 VSZ” with the 1and 4buttons.

2.Raise/lower the data with the 3and 6buttons.

3.Select the optimum state. (The standard is 1F for PAL reception.)

4.Write with the [MUTING] button. (The display changes to WRITE.)

5.Execute the writing with the -button. (The WRITE display will be changed to red color while excuting, and back to SERVICE.)

GEO	00	HPS	29	SERVICE		50			GREEN
0	035Q	5.8M	59	FF	0	000A			Adjusted with [3]
									and [6] buttons.
									GREEN
GEO	00	HPS	1F	WRITE		50
0	035Q	5.8M	59	FF	0	000A
	Write with [MUTING]
GEO	00	HPS	1F	SERVICE		50			RED
0	035Q	5.8M	59	FF	0	000A			The WRITE display
									then the display
	Write executed with [0]								returns to green
									SERVICE

Use the same method for all Items. Use 1 and 4 to select the adjustment item, use 3and 6to adjust, write with [MUTING], then execute the write with -.

Note : 1. In [WRITE], the data for all items are written into memory together.

2.For adjustment items that have different standard data between 50Hz or 60Hz, be sure to use the respective input signal after adjustment.

3.Additional function to skip category (device) to category (device).

example:
GEO	00	VSZ
↕
DAC	00	XXX

The buttons for the function above should be > and ..

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