DOWNLOAD Sony KP-HR53KR1 / KP-HR61KR1 Service Manual ↓ Size: 19.48 MB | Pages: 127 in PDF or view online for FREE

Model
KP-HR53KR1 KP-HR61KR1
Pages
127
Size
19.48 MB
Type
PDF
Document
Service Manual
Brand
Device
TV
File
kp-hr53kr1-kp-hr61kr1.pdf
Date
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Sony KP-HR53KR1 / KP-HR61KR1 Service Manual ▷ View online

– 49 –
KP-HR53KR1/HR61KR1
RM-Y902K
RM-Y902K
4-4. +B OVP CONFIRMATION
1. Connect a voltmeter to TP. OVP and ground.
2. Supply 220VAC to variable autotransformer.
3. Power on the Set.
4. Supply 150VDC to TP. OVP.
5. Check the OVP is activated.
4-1. HV REGULATION CIRCUIT CHECK AND
ADJUSTMENT
When replacing the following components marked with 
 on
the schematic diagram always check HV regulation, and if nec-
essary re-adjust.
: R8196, R8201
: C8018,C8064, C8066, C8070, C8074,
C8076,C8082
D8042
IC8002, IC8007, IC8008
Q8022
R8093, R8095, R8096, R8105, R8108
R8112, R8113, R8114, R8115, R8126
R8128, R8136, R8138, R8139, R8154
R8157, R8168, R8173, R8174, R8177
R8178, R8195, R8196, R8201
T8002 (LOT), T8003 (FBT)
HV BLOCK, D BOARD
[ D BOARD]
4-2. HV HOLD DOWN CIRCUIT OPERATION
CHECK AND ADJUSTMENT
When replacing the following components marked with 
 on
the schematic diagram always check hold-down voltage and if
necessary re-adjust.
: R8194, R8202
: C8018, D8026, D8032, D8035, D8050
IC8006, IC8009, IC8010
Q8021, Q8031
R8092, R8094, R8097, R8109, R8110,R8117,
R8118, R8121, R8123, R8125, R8129, R8135,
R8140, R8155, R8190, R8191, R8192, R8193,
R8194, R8198, R8202
T8002 (LOT), T8003(FBT)
HV BLOCK, D BOARD
Fig. 4-1
Remove the cap off from
the unused terminal and
connect a static voltmeter
there.
OPERATION CHECK
1. Connect a HV static voltmeter to the unconnected plug of
the high-voltage block.
2. Power on the set.
3. Receive dot signal patterm.
4. Check that the HV static voltmeter is readind 34.0 
± 0.5V dc.
HV Regulation ADJUSTMENT
1. Repart step 
1 as above.
2. Connect 33k
Ω variable resistor, set to maximum value, to
CN8008.
3. Power on the set.
4. Receive dot signal pattern.
5. Gradually lower the value of the variable resistor until the
static voltmeter is reading 34.0 
± 0.5 kVdc.
6. Switch off the swt.
7. Remove the VR connected across CN8008, and measure its
value.
8. Solder a resistor value, nearest to the measured value, across
CN8008.
9. Reconfirm operation check.
SECTION 4
SAFETY RELATED ADJUSTMENTS
OPERATION CHECK
1. Connect a HV static voltmeter to the unconnected plug of
the high-voltage block.
2. Connect a 33k
Ω variable resistor, set to maximum value,
across CN8008.
3. Power on the set.
4. Receive dot signal pattern.
5. Gradually lower the value of the variable resistor and check
that the hold-down circuit operates at a static voltmeter read-
ing of 31.0 
± 0.5kV dc when the raster disappears.
HV HOLD-DOWN ADJUSTMENT
1. REPART STEPS 
1 ~ 5 as above.
2. Just at the point hold-down circuit begins to operate switch
off the set.
3. Remove the VR connected across CN8008, and measure it’s
resistance.
4. Solder a resistor value, nearest to the measured value, across
CN8008.
5. Reconfirm operation check.
4-3. +B MAX VOLTAGE CONFIRMATION
The following adjustments should always be performed
when replacing IC6101.
1. Supply 220 
± 2.0VAC  to variable autotransformer.
2. Receive dot signal pattern and set the PICTURE and
BRIGHTNESS settings to their minimum.
3. Confirm the voltage of TP  +B 135V is less than 137.0Vdc.
4. If step 4 not satisfied , replace IC6101 and repeat above steps.
[ G BOARD]
– 50 –
KP-HR53KR1/HR61KR1
RM-Y902K
RM-Y902K
[ MCD MODE]
5-1. TV INPUT SUB CONTRAST ADJUSTMENT
(MCD1-SCON)
1. Receive the color-bar signal.
2. Set to service mode.
3. Connect an oscilloscope between pin 
2 of CN511 (A board)
and ground.
4. Select “ MCD1-SCON ”, and adjust so that the waveform
level is 0.525 
± 0.015Vp-p.
5. Write the data into memory.
MUTING   n   ENTER
5-3. P & P SUB CONTRAST ADJUSTMENT
(MCD2-SCON)
1. Receive the signal.
TV terminal (main)
: color-bar signal
VIDEO terminal (sub) : no signal
2. Set to P & P mode, set to service mode.
3. Connect an oscilloscope between pin 
@º of CN513 (A board)
and ground.
4. Select “ MCD2-SCON ”, and adjust so that the waveform
level is 0.525 
± 0.015Vp-p.
5. Write the data into memory.
MUTING   n   ENTER
Fig. 5-3
Fig. 5-1
5-2. VIDEO INPUT SUB CONTRAST ADJUSTMENT
(MCD3-SCON)
1. VIDEO 1 input the color-bar signal.
2. Set to service mode.
3. Connect an oscilloscope between pin 
2 of CN511 (A board)
and ground.
4. Select “ MCD3-SCON ”, and adjust so that the waveform
level is 0.525 
± 0.015Vp-p.
5. Write the data into memory.
MUTING   n   ENTER
5-4. P & P SUB CONTRAST ADJUSTMENT
(MCD4-SCON)
1. Receive the signal.
TV terminal (sub)
: no signal
VIDEO terminal (main) : color-bar signal
2. Set to P & P mode, and set to service mode.
3. Connect an oscilloscope between pin 
@º of CN513 (A board)
and ground.
4. Select “ MCD4-SCON ”, and adjust so that the waveform
level is 0.525 
± 0.015Vp-p.
5. Write the data into memory.
MUTING   n   ENTER
Fig. 5-4
Fig. 5-2
SECTION 5
CIRCUIT ADJUSTMENTS
White
0.525 
±
 0.015Vp-p
Pedestal
White
0.525 
±
 0.015Vp-p
Pedestal
White
0.525 
±
 0.015Vp-p
Pedestal
White
0.525 
±
 0.015Vp-p
Pedestal
– 51 –
KP-HR53KR1/HR61KR1
RM-Y902K
RM-Y902K
5-5. SUB-CONTRAST ADJUSTMENT
(MCP2-SCON)
1. Receive the color-bar signal.
2. VIDEO MODE
: PRO
PICTURE
: maximum
COLOR
: minimum
BRIGHTNESS
: center
TRINITONE
: medium
SERVICE DATA MCP2-SBRT
: 25
3. Set to service mode.
4. Connect an oscilloscope between pin  
3  of CN503 (A board)
connecter and ground.
5. Select “ MCP 2-SCON ”, and adjust so that the waveform
level is 1.750 
± 0.030Vp-p.
6. Write the data into memory.
MUTING   n   ENTER
5-6. VIDEO 5 INPUT SUB-CONTRAST
ADJUSTMENT (MCP3-SCON)
1. VIDEO 5 input the color-bar signal.
2. PICTURE
: maximum
COLOR
: minimum
BRIGHTNESS
: center
TRINITONE
: medium
SERVICE DATA MCP3-SBRT
: 25
3. Set to service mode.
4. Connect an oscilloscope between pin  
3  of CN503 (A board)
connecter and ground.
5. Select “ MCP 3-SCON ”, and adjust so that the waveform
level is 1.750 
± 0.030Vp-p.
6. Write the data into memory.
MUTING   n   ENTER
Fig. 5-5
Fig. 5-6
Fig. 5-7
Fig. 5-8
White
1.750 
±
 0.030Vp-p
Black
5-7. SUB-HUE AND SUB-COLOR ADJUSTMENT
(MCD1-SHUE, SCOL)
1. Receive the color-bar signal.
2. VIDEO MODE
: PRO
PICTURE
: maximum
COLOR
: center
HUE
: HUE
BRIGHTNESS
: center
TRINITONE
: medium
SERVICE DATA MCP1-SBRT
: 25
  MCP1-SHUE
: 7
  MCP1-SCOL
: 12
3. Set to service mode.
4. Connect an oscilloscope between pin  
5  of CN503 (A board)
connecter and ground.
5. Select “ MCD 1-SHUE, SCOL ”, and adjust them to have
VB1 = VB4 and VB2 = VB3 in the waveform levels.
6. Write the data into memory.
MUTING   n   ENTER
5-8. VIDEO INPUT SUB-HUE AND SUB-COLOR
ADJUSTMENT (MCD3-SHUE, SCOL)
1. VIDEO input the color-bar signal.
2. VIDEO MODE
: PRO
PICTURE
: maximum
COLOR
: center
HUE
: HUE
BRIGHTNESS
: center
TRINITONE
: medium
SERVICE DATA MCP1-SBRT
: 25
  MCP1-SHUE
: 7
  MCP1-SCOL
: 12
3. Set to service mode.
4. Connect an oscilloscope between pin  
5  of CN503 (A board)
connecter and ground.
5. Select “ MCD 3-SHUE, SCOL ”, and adjust them to have
VB1 = VB4 and VB2 = VB3 in the waveform levels.
6. Write the data into memory.
MUTING   n   ENTER
VB1      VB2     VB3     VB4
VB1      VB2     VB3     VB4
White
1.750 
±
 0.030Vp-p
Black
– 52 –
KP-HR53KR1/HR61KR1
RM-Y902K
RM-Y902K
5-11. P & P SUB CONTRAST ADJUSTMENT
 (SCD1-SCON)
1. Receive the signal.
TV terminal (sub)
: color-bar signal
VIDEO terminal (main) : no signal
2. Set to P & P mode, and set to service mode.
3. Connect an oscilloscope between pin 
@º of CN513 (A board)
and ground.
4. Select “ SCD1-SCON ”, and adjust so that the wave from
level is 0.525 
± 0.015Vp-p.
5. Write the data into memory.
MUTING   n   ENTER
[ SCD MODE]
5-12. P & P SUB CONTRAST ADJUSTMENT
(SCD2-SCON)
1. Receive the signal.
TV terminal (main)
: no signal
VIDEO terminal (sub) : color-bar signal
2. Set to P & P mode, and set to service mode.
3. Connect an oscilloscope between pin 
@º of CN513 (A board)
and ground.
4. Select “ SCD2-SCON ”, and adjust so that the wave from
level is 0.525 
± 0.015Vp-p.
5. Write the data into memory.
MUTING   n   ENTER
Fig. 5-11
Fig. 5-12
5-10. P & P SUB-HUE AND SUB-COLOR  ADJUSTMENT
(MCD4-SHUE, SCOL)
1. Receive the signal.
VIDEO terminal (main) : color-bar signal
VIDEO terminal (sub) : no signal
2. VIDEO MODE
: PRO
PICTURE
: maximum
COLOR
: center
HUE
: HUE
BRIGHTNESS
: center
TRINITONE
: medium
SERVICE DATA MCP1-SBRT
: 25
SERVICE DATA 
MCP1-SHUE
: 7
SERVICE DATA 
MCP1-SCOL
:12
3. Set to P & P mode, set to service mode.
4. Connect an oscilloscope between pin  
5  of CN503 (A board)
connecter and ground.
5. Select “ MCD 4-SHUE, SCOL ”, and adjust them to have VB1
= VB4 and VB2 = VB3 in the waveform levels.
6. Write the data into memory.
MUTING   n   ENTER
5-9. P & P SUB-HUE AND SUB-COLOR ADJUSTMENT
(MCD2-SHUE, SCOL)
1. Receive the signal.
TV terminal (main)
: color-bar signal
VIDEO terminal (sub) : no signal
2. VIDEO MODE
: PRO
PICTURE
: maximum
COLOR
: center
HUE
: HUE
BRIGHTNESS
: center
TRINITONE
: medium
SERVICE DATA MCP1-SBRT
: 25
SERVICE DATA 
MCP1-SHUE
: 7
SERVICE DATA 
MCP1-SCOL
: 12
3. Set to P & P mode, set to service mode.
4. Connect an oscilloscope between pin  
5  of CN503 (A board)
connecter and ground.
5. Select “ MCD 2-SHUE, SCOL ”, and adjust them to have
VB1 = VB4 and VB2 = VB3 in the waveform levels.
6. Write the data into memory.
MUTING   n   ENTER
Fig. 5-9
Fig. 5-10
VB1      VB2     VB3     VB4
VB1      VB2     VB3     VB4
White
0.525 
±
 0.015Vp-p
Pedestal
White
0.525 
±
 0.015Vp-p
Pedestal
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