DOWNLOAD Sony XTL-6100MK2 Service Manual ↓ Size: 5.39 MB | Pages: 40 in PDF or view online for FREE

Model
XTL-6100MK2
Pages
40
Size
5.39 MB
Type
PDF
Document
Service Manual
Brand
Device
Car Audio
File
xtl-6100mk2.pdf
Date

Sony XTL-6100MK2 Service Manual ▷ View online

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
V COM Adjustment
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
TRAP Adjustment
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.)
VCO Adjustment
Procedure:
1. No connection to ANT IN. (no signal state)
2. Connect a resistor (10 k
) 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.)
AGC Adjustment
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.
AFT Adjustment
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.
Equipment
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
Equipment Connections
Connect the test equipment as shown in the figure below (unless
otherwise instructed) and perform the adjustment.
Setup during 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.
  TUNER UNIT SECTION
Color bar signal from TV signal generator
Note:
Small peaks (dips) coming out from the top of the
waveform are unacceptable.
11
white
blue
SYNC
TP111
1
2
4
3
white
blue
SYNC
TP111
1
2
4
3
RGB Decoder FO Adjustment
Procedure:
1. Without INPUT1, INPUT2 inputs (no signal input mode), short
the jumper wire between TP100 and GND.
2. Connect a frequency counter to TP61.
3. Adjust VR6 so that reading on frequency counter is
4.433619 MHz ± 10 Hz.
4. Short the jumper wire between TP106 and GND.
5. Connect a frequency counter to TP61.
6. Confirm that reading on frequency counter is 3.579545 MHz ±
100 Hz.
7. After this adjustment, remove the jumper wires.
RGB Decoder Input Level Adjustment
Procedure:
1. Input signal : PAL EBU color bar (INPUT 1 VIDEO)
2. Adjust VR4 so that the white peak 
1 (100% white) of
TP111 (B OUT) is at 1.0 Vp-p.
DL AMP & DAT Adjustment
Procedure:
1. Adjust DAT so as to minimize the variation between the level
2 and the level 3 of TP111.
2. Adjust VR5 so that the blue level 
4 is at 1.0 Vp-p.
3. Set the input to NTSC, and confirm that the blue level 
4 is at
1.0 ± 0.1 Vp-p.
12
Connection points and Adjustment points: Tuner main board
T3: VCO Adjustment
    : AFT Adjustment
VR1: AGC Adjustment
T2: TRAP Adjustment
T1: TRAP Adjustment
VR5: DL AMP & DAT Adjustment
VR6: RGB Decoder FO Adjustment
VR4: RGB Decoder
        input Level Adjustment
TP100
TP106
TP111
TP61
TP102
TP42
TP30
TP34
TP33
TP31
Page of 40
Display

Click on the first or last page to see other XTL-6100MK2 service manuals if exist.