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7

2

 screws (M2x5), 

     tapping, P3

1

 screw (M2x5), 

     tapping, P3

3

 screws (M2x5), tapping, P3

5

 MAIN board

4

 CN3

switch

ground terminal

1

 screws (2.6x6)

4

 stand bracket

2

 screws (2.6x6)

3

 screws (2.6x6)

8

 CN601

9

 CN8

0

 rear panel assy (6100)

5

 screws (M2x5), 

     tapping, P3

6

 screws (M2x5), tapping, P3

7

 screws, precision (P2x3), type3

Note : Follow the disassembly procedure in the numerical order given.

8

1

2

3

4

5

6

7

8

white level (1st step)

black level (8th step)

0 V

INPUT 1
VIDEO

color bar
generator

XT-993V

XVM-6100MK2

VIDEO output

(75 

Ω

)

MONITOR OUT

Use the following test equipment for alignment.
• Oscilloscope dual trace, 10 MHz band or above with delay mode

(use a 10 to 1 probe unless otherwise instructed.)

• PAL color bar generator
• DC power supply
• Digital voltmeter
• XT-993V (Hideaway unit)
• Frequency counter

Make the test equipment connections as shown below (unless
instructed otherwise) and perform the alignment.

Setting :
DIMMER selector (S701) : HIGH
BRIGHT dial (RV702)

: Max. (light)

VOL dial (RV301)

: Max.

Procedure :
1. Input the color bar (chroma off) signal from PAL color bar gen-

erator and display on the monitor screen.

2. Connect the digital voltmeter to CL66 on the monitor main

board.

3. Adjust RV401 (+5V) so that the digital voltmeter reads 5 ± 0.1 V

DC.

4. Connect the digital voltmeter to CL86 on the monitor main

board.

5. Adjust RV601 (+9V) so that the digital voltmeter reads 8.5 ± 0.1 V

DC.

Connection points : Monitor main board
Alignment points : Monitor main board

Procedure :
1. Input the color bar (chroma off) signal from PAL color bar gen-

erator and display on the monitor screen.

2. Connect the digital voltmeter to CL151 on the monitor main

board.

3. Adjust RV213 (OFFSET) so that the digital voltmeter reads 2.3

± 0.1 V DC.

4. Connect the oscilloscope to CL42 on the monitor main board.
5. Adjust RV212 (COM CUT) so that the lower black level is 6.2

± 0.05 V DC.

6. Adjust RV208 (COM DRIVE) so that the upper 100% white

level is 9.2 ± 0.05 V DC.

7. Repeat steps 5 & 6 until the items in the standards are satisfied.
8. Connect the oscilloscope to CL41 of the monitor main board.
9. Adjust RV207 (R DRIVE) so that the lower black level is 6.2 ±

0.05 V DC.

10. Adjust RV202 (R CUT) so that the upper 100% white level is

9.2 ± 0.05 V DC.

11. Repeat steps 9 & 10 until the items in the standards are satisfied.
12. Connect the oscilloscope to CL43 of the monitor main board.
13. Adjust RV209 (B DRIVE) so that the upper 100% white level

is 6.1 ± 0.05 V DC.

14. Adjust RV204 (B CUT) so that the upper 100% white level is

9.1 ± 0.05 V DC.

15. Repeat steps 13 & 14 until the items in the standards are satisfied.

Connection points : Monitor main board
Alignment points : Monitor main board

9

– MONITOR MAIN BOARD (SIDE B) –

CL44

CL43

CL41

CL66

CL42

CL151

RV207

R DRIVE

ADJ

RV208 

COM DRIVE

ADJ

RV213

OFFSET

ADJ

RV212

COM CUT

ADJ

RV202
R CUT

ADJ

RV209
B DRIVE ADJ

RV204
B CUT ADJ

RV210
V COM AMP ADJ

RV211
V COM BIAS ADJ

RV401
+5V ADJ

RV601
+9V ADJ

– MONITOR MAIN BOARD (SIDE A) –

A

B

0 V

Procedure :
1. Connect the oscilloscope to CL44 on the monitor main board.
2. Adjust RV210 (V COM AMP) & RV211 (V COM BIAS) so

that the output waveform is within the standards.

3. Repeat step 2 until the standards are satisfied.
Standard values :
A : Adjust RV210 so the value is 4.9 ± 0.1 Vp-p.
B : Adjust RV211 so the value is 5.1 ± 0.1 V.

Connection points : Monitor main board

Alignment points : Monitor main board

10

2.5 Vp-p

0 V

38.9 MHz

T1= 40.9 MHz
T2= 31.9 MHz

0.7 V

0.3 V

0.3 V

red

white (approx. 100%)

horizontal sync. signal

burst signal (flat)

TV SG

set

POWER (CN4)

RF out

ANT IN

DC
power supply

Procedure:
1. With the Power off, input the output of TG to TP30 (with DC

cut by a capacitor (0.01 µF)).

2. Connect a spectrum analyzer to TP31 (with DC cut by a

capacitor (0.01 µF)).

3. Adjust T1 so that the waveform peak is 40.9 MHz ± 50 Hz.
4. Adjust T2 so that the waveform peak is 31.9 MHz ± 50 Hz.
5. After this adjustment, open TP30 and TP31. (Disconnect the

spectrum analyzer.)

Procedure:
1. No connection to ANT IN. (no signal state)
2. Connect a resistor (10 k

Ω

) between TP33 and +9 V (TP35).

3. Connect a spectrum analyzer to TP34 (with DC cut by a

capacitor (0.01 µF)).

4. Adjust T3 so that the waveform peak is 38.9 MHz ± 1 kHz.
5. After this adjustment, open TP34. (Disconnect the spectrum

analyzer.)

Procedure:
1. Set the TV SYSTEM switch to 1.
2. Input a color bar signal of E8ch (196.25 MHz) and 66 dBµV

(75 

Ω 

OPEN).

3. Connect the digital voltmeter to TP42.
4. Adjust VR1 so that reading on the digital voltmeter is

6.0 ± 0.1 V.

Procedure:
1. Input a color bar signal of E8ch (196.25 MHz) and 74 dBµV

(75 

Ω 

OPEN).

2. Connect the oscilloscope to TP102.
3. Adjust T3 untill the waveform on the oscilloscope is 2.5 Vp-p.

• Use the following equipment for the electrical adjustment.

1 Monitor TV (XVM-6100MK2, etc.)
2 Spectrum analyzer
3 TV signal generator
4 Digital voltmeter
5 Oscilloscope
6 Audio analyzer
7 DC power supply
8 Frequency counter

Connect the test equipment as shown in the figure below (unless
otherwise instructed) and perform the adjustment.

Use the video signal obtained from the TV signal generator as the
alignment signal, and check that this signal is within video output
signal standards.

Connection points: Refer to page 12.
Adjustment points: Refer to page 12.

Small peaks (dips) coming out from the top of the
waveform are unacceptable.