SONY RA-3B Service Manual

Self Diagnosis

Supported model

SERVICE MANUAL

MODEL NAME REMOTE COMMANDER DESTINATION CHASSIS NO.

KP-48V90

RM-Y906 US/Canada/Mexico SCC-P62D-A

RA-3B

CHASSIS

9-965-907-01

KV-53V90 RM-Y906

COLOR REAR VIDEO PROJECTOR

KP- 43T90 / 48V90 / 53V90 / 61V90

(

)

2-9. ELECTRICAL ADJUSTMENTS BY
REMOTE COMMANDER.

By using Remote Commander (RM-Y906), all circuit adjustments can
be made.

NOTE : The following test equipment is required:

1. Pattern Generator (with RF, composite, and component outputs)

2. Digital multimeter

2-9-1. METHOD OF ENTERING THE SERVICE
ADJUSTMENT MODE

SERVICE MODE PROCEDURE

1. TV must be in Standby mode. (Power off)

2. Press “DISPLAY”, 5, “Volume +”, then “TV Power” on the Remote
Commander.

(Press each button within 1 second of pressing the previous button.)

SERVICE MODE ADJUSTMENT

Category Adjustment item

DATA

SERVICE VPNT VPOS 031
000000 00

2-9-2. MEMORY WRITE CONFIRMATION
METHOD

1. After adjustment, remove the plug from the AC outlet, and then
replace the plug in the AC outlet again.

2. Turn the power switch ON and enter the Service Mode.

3. Cycle through the adjusted items again and confi rm that the
adjustments were saved.

2-9-3. ADJUSTING BUTTONS AND
INDICATOR

Note: When the PJE mode (which displays an internally generated

signal) is activated, several buttons on the remote commander will have
different functions than the ones listed above. Therefore, when in the PJE
mode, refer to section 2-10 for button functions.

MUTING

Category up

Adjustment
item up

Adjustment
item down

TV Power ON

Display

Data up

Data down

SCREEN DISPLAY

3. The screen displays the adjustment category and the item being
adjusted within that category.

4. Press 1 or 4 to select the adjustment item

5. Press 3 or 6 to change the data

6. Press 2 or 5 to select the adjustment category

7. If you want to go back to the most recently saved value, press “0” then
“ENTER” to read the memory.

8. Press “MUTING” then “ENTER” to write the new adjustment data into
memory.

9. Turn power off when you want to exit the service mode.

Note: Press “8” then “ENTER” to restore the factory settings for user

controls and channel memories (this will also turn set off and then on
to exit the service mode).

Category down

ENTER

RM-Y906

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