Section 4: Circuit Adjustments; Electrical Adjustments By Remote Commander; Setting Service Adjustment Mode; 4-1.1. Service Adjustment Mode In - Sony Trinitron KV-29DRC420 Service Manual

ELECTRICAL ADJUSTMENTS BY REMOTE COMMANDER

Use the Remote Commander (RM-Y197) to perform the circuit adjustments in this section.
Test Equipment Required: 1. Pattern generator 2. Frequency counter 3. Digital multimeter 4. Audio oscillator

4-1.SETTING SERVICE ADJUSTMENT MODE

1. Standby mode (Power off).
2. Press the following buttons on the remote commander within a second
of each other:
Channel 5
DISPLAY

4-1.1. SERVICE ADJUSTMENT MODE IN

Item
Disp. Item
(Item) order data
SERVICE
VP 7
0
HSIZ TV
Mode
3. The CRT displays the item being adjusted.
4. Press 1 or 2 on the Remote Commander to select the item.
5. Press 3 or 6 on the Remote Commander to change the data.
6. Press MUTING then ENTER to write into memory.

4-1.2.SERVICE ADJUSTMENT MODE MEMORY

Disp. Item Item
order data
(Item)
VP 7
0 SERVICE
HSIZ TV
7. Press 8 on the Remote Commander to initialize.
Disp. Item Item
order data
(Item)
VP 7
0 WRITE
HSIZ TV
8. DO NOT turn off set until SERVICE appears.
KV-27HS420/29DRC420/30HS420/32HS420/34HS420/36HS420

SECTION 4: CIRCUIT ADJUSTMENTS

Sound Volume +
Power
MUTING Green
ENTER Red
KV-27HS420/29DRC420/30HS420/32HS420/34HS420/36HS420

4-1.3. READING THE MEMORY

1. Enter into Service Mode.
2. Press 0 on the Remote Commander.
3. Press ENTER to read memory.

4-1.4. ADJUSTING THE PICTURE

1. Enter into Service Mode
2. Press 2 or 5 on the remote to select the device item.
3. Press 1 or 4 on the remote to select an item.
4. Press 3 or 6 on the remote to change the data.
5. Press MUTING then ENTER to write into memory.

4-1.5. RESETTING THE DATA

CAUTION: Be careful when using the remote! It will clear and re-
initialize ALL NVM data including defl ection adjustment data if not
reset properly as follows:

4-1.6. RESETTING THE MID NVM DATA

1. Enter into Service Mode.
2. Press 7 , then JUMP , and then press ENTER on the remote.

4-1.7. RESETTING THE SYSTEM NVM DATA

1. Enter into Service Mode. This resets DEFL adjust and video white
balance.
2. Press 7 , then 9 , and then press ENTER on the remote.

4-1.8. COPY FUNCTION

How to use copy function for DA4 Chassis:
• After writing your adjusted data into NVM, press MUTING
then ENTER , copy can be made by changing copy data from 0 to
1 then MUTING , and ENTER again.
WARNING: DO NOT copy data before writing your corrected data in
NVM. If data is copied before writing corrected data, old
data will be copied.
• CPY1: DF/DQP DATA (CXA2170D-4 Item 6)
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