Sony KV-HF21M80 service manual Adjustments with Commander, Entering Service Mode

KV-HF21M80

RM-952

SECTION 4

CIRCUIT ADJUSTMENTS

4-1. ADJUSTMENTS WITH COMMANDER

Service adjustments are made with the RM-952 that comes with this unit.

a.ENTERING SERVICE MODE

With the unit on standby

↓

[DISPLAY]

↓

5

↓

VOL (+)

↓

[POWER]

This operation sequence puts the unit into service mode.

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.

1, 4 Select the adjustment item.

↓

3, 6 Raise/lower the data value.

↓

[MUTING]	Writes.
↓

-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.)

2, - Write 50Hz adjustment data to 60Hz, or vice versa.

1 2 3

4 5 6

7 8 9

÷0 JUMP

SOUND Á PROGR

MODE

The screen display is :

FAVORITE

Device Name Item Name Marking of virgin NVM

Item No

Data

Mode

TV

GEO		00		HPS	1C	p	SERVICE 50	PAL, SECAM : 50
616S		1.0C		59	7F	0	000A	NTSC	: 60
or									RM-952
623S
Suffix No
(OEM Code)					Total Power-On time (hours)
	Software		version

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