Circuit Adjustments - Sony TRINITRON KV-27TW77 Service Manual

RV-S2TW4 FAST 78
SECTION 5
CIRCUIT ADJUSTMENTS
Use of Remote Commander can be performed circuit
adjustments about this model.
NOTE: Test Equipment Required.
1. Pattern Generator
2. Frequency counter
3. Digital multimeter
4. Audio OSC
1. METHOD OF SETTING THE SERVICE
ADJUSTMENT MODE
SERVICE MODE PROCEDURE
1. Standby mode.(Power off)
2 [DISPLAY] —-B] —-[VOL. CH] POWER) on tne
Remote Commander. (Press each button within a
second.)
SERVICE ADJUSTMENT MODE IN
Item
data
Disp.
(Item)
SERVICE AFC °
1000
3. The CRT displays the item Being adjusted.
4. Press |1| or [al 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.
SERVICE ADJUSTMENT MODE MEMORY
Green
i
Red
SERVICE
1000
WRITE
7. Press |8] then |ENTER] on the Remote
Commander to initialize.
Carry out step 7) when
adjusting IDs 0 to 4 and when
replacing and adjusting C102.
SERVICE
1000
RESET
Factory original setting
8. Turn set off and on to exit.
2. MEMORY WRITE CONFIRMATION METHOD
1. After adjustment, pull out the plug from AC
outlet, and next place, plug in AC outlet again.
nw
. Turn the power switch ON and set to Service
Mode.
. Call the adjusted items again, confirm they were
i)
adjusted.
3. ADJUST BUTTONS AND INDICATOR
Write the memory
Service mode
Item up Data up
Item down Data down
DISPLAY| [5] Service mode
Service mode Initialize
ENTER
IVOL(+ Write into memory
Service mode
MUTING
Write the memory
POWER
Service mode
Item up Data up
item down Data down
DISPLAY!
Service mode
[5] Service mode
[a] Initialize
ENTER
Write into memory
Service mode
RM-Y117/RM-Y118