Self Diagnosis
Supported model
SERVICE MANUAL MODEL NAME
KV-34FS100 KV-34FS100
REMOTE COMMANDER
BA-5D DESTINATION
CHASSIS
CHASSIS NO.
RM-Y180
LATIN NORTH
SCC-S62K-A
RM-Y180
LATIN SOUTH
SCC-S62L-A
RM-Y181 KV-32FS200
TRINITRON® COLOR TELEVISION 9-965-929-01
KV-27FS100/27FS200/29FS100/ 32FS100/32FS200/34FS100
SECTION 4: CIRCUIT ADJUSTMENTS ELECTRICAL ADJUSTMENTS BY REMOTE COMMANDER Use the Remote Commander (RM-Y180, RM-Y181) 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 Sound Volume + Power DISPLAY
4-2. MEMORY WRITE CONFIRMATION METHOD 1. After adjustment, pull out the plug from the AC outlet, then replace the plug in the AC outlet again. 2. Turn the power switch ON and set to Service Mode. 3. Call the adjusted items again to confirm they were adjusted.
SERVICE ADJUSTMENT MODE IN Item order
Disp. (Item)
VP HSIZ
7 TV
0
4-3. REMOTE ADJUSTMENT BUTTONS AND INDICATORS
Item data
SERVICE
Mode
MUTING
POWER (Service Mode)
(Enter into memory)
DISPLAY 1. 2. 3. 4.
The CRT displays the item being adjusted. Press 1 or 2 on the Remote Commander to select the item. Press 3 or 6 on the Remote Commander to change the data. Press MUTING then ENTER to write into memory.
SERVICE ADJUSTMENT MODE MEMORY Disp. (Item)
VP HSIZ
Item order
0
(Service Mode) 3 Item (Data up)
1 Disp. (Item up)
6 Item (Data down) 5 (Device item down)
2 (Device Item Up)
Item data
7 TV
SERVICE
MUTING Green
4 Disp. (Item down)
ENTER (Enter into memory)
8 (Initialize) ENTER Red
0 (Remove from memory)
VOLUME (+) (Service Mode)
1. Press then on the Remote Commander to initialize. Disp. (Item)
VP HSIZ
Item order
0
Item data
7 TV
WRITE
RM-Y181 Carry out Step 1 when adjusting ID’s 0-7 and when replacing and adjusting IC003. 2. DO NOT turn off set until SERVICE appears.
— 17 —
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7. Adjust the value of SCON with 3 and 6 for 1.90 ± 0.05Vpp.
4-6. A BOARD ADJUSTMENTS H. FREQUENCY (FREE RUN) CHECK 1. Input a TV mode (RF) with no signal. 2. Connect a frequency counter to base of Q501 (TP-25 H. DRIVE) on the A Board. 3. Check H. Frequency for 15734 ± 400/-200 Hz.
8. Reset GON and BON values to “1”. R ON: ON (1) G ON: ON (1) B ON: ON (1) 9. Press MUTING then ENTER to save into the memory. 10. After adjusting SCON, if still out of spec, use RDRV register as a fine adjustment.
V. FREQUENCY (FREE RUN) CHECK 1. Select video 1 with no signal input. 2. Set the conditions for a standard setting. 3. Connect the frequency counter to TP-27 (V OUT) or CN501 pin 6 (V DY+) and ground on the A Board . 4. Check that V. Frequency shows 60 ± 5 Hz.
SUBCONTRAST ADJUSTMENT (RDRV) 1. 2. 3. 4.
Input a color-bar signal and set the level to 75%. Set in Standard mode. Activate the Service Adjustment Mode. Set color min pic max. Set GON and BON items. Using 3 and 6 set each to the following values. Leave RON set to “1”.
Category
Mode
Signal Type
service
rdrv
Item Data
26
ntsc vchp
R ON: ON G ON: OFF B ON: OFF
video
Display Item
00000000 00000000
(1) (0) (0)
5. Connect an oscilloscope probe to C Board, CN705 pin 3 (Red Out) (TP35). 6. Select SCON with 1 and 4 .
DISPLAY POSITION ADJUSTMENT (DISP) 1. 2. 3. 4.
Input a color-bar signal. Set to Service Adjustment Mode. Select DISP with 1 and 4 . Adjust values of DISP with 3 and 6 to adjust characters to the center. 5. Write to memory by pressing MUTING then ENTER . 6. Check to see if the text is displayed on the screen. Mode Category service micro Signal Type
Display Item disp
Item Data
48
ntsc vchp
00000000 00000000
SUB BRIGHT ADJUSTMENT (SBRT) 1. 2. 3. 4. 5.
Input a monoscope signal. Activate the Service Adjustment Mode. Set the PICTURE and BRIGHTNESS to minimum. Select the SBRT item with 1 and 4 . Adjust the values of SBRT with 3 and 6 to obtain a faintly visible crosshatch. 6. Press MUTING then ENTER to save into the memory.
SUB HUE, SUB COLOR ADJUSTMENT (SHUE, SCOL) 1. 2. 3. 4. 5.
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Input color-bar signal at 75%. Activate the Service Adjustment Mode. Set (PIC) to Max and (COL) to 50%. Connect an oscilloscope probe to C Board, CN705Pin 4 Blue Out. Select the SHUE and SCOL item with 1 and 4 .
KV-27FS100/27FS200/29FS100/ 32FS100/32FS200/34FS100
H. SIZE ADJUSTMENT (HSIZ)
6. While showing the SHUE item, adjust the waveform with 1 and 4 until the second and third bars show the same level (V2 = V3 < 0.15Vp-p). 7. While showing the SCOL item, adjust the waveform with 3 and 6 until the first and fourth bars show the same level (V1 = V4 < 0.15Vp-p).
1. 2. 3. 4. 5.
V1 V2 V3 V4
8. Press MUTING then ENTER to save into the memory.
V. LINEARITY (VLIN), V. CORRECTION (SCOR), PIN AMP (PAMP), AND HORIZONTAL TRAPEZOID (HTRP) ADJUSTMENTS
V. SIZE ADJUSTMENT (VSIZ) 1. 2. 3. 4. 5.
Input a monoscope signal. Activate the Service Adjustment Mode. Select HSIZ with 1 and 4 . Adjust with 3 and 6 for the best horizontal size. Press MUTING then ENTER to save into the memory.
Input a crosshatch signal. Activate the Service Adjustment Mode. Select the VSIZ item with 1 and 4 . Adjust value of VPOS with 1 and 4 for the best vertical center. Press MUTING then ENTER to save into the memory.
1. 2. 3. 4. 5.
Input a crosshatch signal. Activate the Service Adjustment Mode. Select VLIN, SCOR, PAMP, and HTRP with with 1 and 4 . Adjust with 3 and 6 for the best horizontal size. Press MUTING then ENTER to save into the memory. V LINEARITY (VLIN)
V. CENTER ADJUSTMENT (VPOS) V CORRECTION (SCOR)
Perform this adjustment after performing H. Frequency (Free Run) Check. 1. Input a crosshatch signal. 2. Activate the Service Adjustment Mode. 3. Select the VPOS item with 1 and 4 . 4. Adjust value of VPOS with 3 and 6 for the best vertical center. 5. Press MUTING then ENTER to save into the memory.
PIN AMP (PAMP)
HORIZONTAL TRAPEZOID (HTRP)
H. CENTER ADJUSTMENT (HPOS) Perform this adjustment after performing H. Frequency (Free Run) Check. 1. Input a crosshatch signal. 2. Activate the Service Adjustment Mode. 3. Select the HPOS item with 1 and 4 . 4. Adjust the value of HPOS with 3 and 6 for the best horizontal center. 5. Press MUTING then ENTER to save into the memory.
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KV-27FS100/27FS200/29FS100/ 32FS100/32FS200/34FS100
V. ANGLE (VANG), V. BOW (VBOW), UPPER PIN (UPIN) AND LOW PIN (LPIN) ADJUSTMENTS 1. 2. 3. 4. 5.
Input a crosshatch signal. Activate the Service Adjustment Mode. Select VANG, VBOW, UPIN, and LPIN with 1 and 4 . Adjust with 3 and 6 for the best picture. Press MUTING then ENTER to save into the memory.
V ANGLE (VANG)
V BOW (VBOW)
UPPER PIN (UPIN)
LOW PIN (LPIN)
SERVICE ADJUSTMENT MODE MEMORY 1. After completing all adjustments, press 0 then ENTER . Read From Memory Mode Category service Signal Type
defl
Item Data
Display Item vbow
7
Green 0
ntsc Red vchp
00000000 00000000
ENTER
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