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Model
KV-PG14N70
Pages
41
Size
3.33 MB
Type
PDF
Document
Service Manual
Brand
Device
TV
File
kv-pg14n70.pdf
Date

Sony KV-PG14N70 Service Manual ▷ View online

– 20 –
KV-PG14N70
RM-915
Item
KV-PG14N70
HA ME  Vol
Tone controller Volume curve setting.
1 = for HA(ME),  0 = for HA(GE)
AV Input
00 = no AV Input model
01 = 1 AV Input model
10 = 2 AV Input model
11 = Not available
COMB (for NTSC model)
1 = Enable external comb filter,
0 = Disable external comb filter
Other optional function will be enabled if the corresponding bit is set to 1.
No. 32 OP1
M
1
D/K
0
I
0
B/G
0
HA ME VOL
0
AV INPUT
COMB
0
Item
KV-PG14N70
No NICAM
1 = NICAM search is disable in any TV system,
0 = NICAM search operates
(Multi Model Only)
US ST
(Reserved for NTSC model)
HDEV (Multi Model Only)
1 V-Curve
1 = using common volume curve for every mode and every TV system
(Multi Model Only)
0 = another volume curve available for video mode and M system
XTAL SEL
00 = only 4.43 XTAL
01 = only 3.58 XTAL
10 = not used
11 = both 4.43 and 3.58 XTAL
Other optional function will be enabled if the corresponding bit is set to 1.
No. 33 OP2
2nd LANG.
1
SECAM
0
XTAL SEL
IV-CURVE
0
NO NICAM
1
US ST
0
HDEV
0
CL2
CL1
CL0
Cathode Drive amplitude
0
0
0
57V
0
0
1
63V
0
1
0
70V
0
1
1
77V
1
0
0
84V
1
0
1
91V
1
1
0
99V
1
1
1
107V
Item
KV-PG14N70
Item
KV-PG14N70
ITEM INFORMATION
No. 1E VP1
BCO
Switch-on behaviour 1 = Switch-on of picture via unternal delay 0 = Without delay
00(4)
OSO
1 = Switch-off in vertical overscan  0 = Switch-off undefind
18(7)
SBL
Service blanking  1 = on  0 = off
0B(7)
HBL
RGB Blanking Mode 1 = wide blanking,  0 = normal blanking
02(7)
FCO
Forced Color-on  1 = no colour killer  0 = normal colour killer function
1B(0)
FFI
Fast filler IF-PLL  1 = increased time constant  0 = normal time constant
1A(1)
No. 1F VP2
BKS
1
BLS
0
EBS
0
DSA
0
DS
0
MAT
0
Item
KV-PG14N70
FFI
0
FCO
0
HBL
0
SBL
0
OSO
0
BCO
0
No. 20 VP3
CLO
1
CL1
1
CB
0
BB
0
AKB
0
BPS
0
ACL
1
CL2
0
MAT
PAL-SECAM-/NTSC Matrix  1 = PAL matrix,  0 = adapted to standard
0E(7)
DS
Dynamic skin control on/off  1 = on  0 = off
1A(3)
DSA
Dynamic skin control angle  1 = correction angle 117 degrees  0 = correction angle 123 degrees
1A(2)
EBS
Extended Blue Stretch  1 = on  0 = off
1A(0)
BLS
Blue stretch  1 = on  0 = off
18(4)
BKS
Black stretch  1 = on  0 = off
18(3)
BB
Blue back when no video signal is identified  1 = on  0 = off
18(0)
AKB
Black current stabilisation  1 = not active  0 = active
02(6)
BPS
Bypass of chroma base-band delay line  1 = bypassed  0 = active
19(6)
CB
Chroma bandpass centre frequency  1 = 1.1xFsc  0 = Fsc
18(5)
ACL
Automatic colour limiting  1 = active  0 = not active
19(5)
0
1
1
1
– 21 –
KV-PG14N70
RM-915
Item
KV-PG14N70
No Bal.
1 = no balance in analog select items, 0 = balance included
(for AV stereo model)
SPC SOUND
1 = Space Sound available, 0 = not available
Korean ST
(Reserved for NTSC model)
H.K. Bil
1 = NICAM bilingual available (No NICAM stereo), 0 = not available
(Multi Model Only)
Thai Bil. (Multi Model Only)
Other optional function will be enabled if the corresponding bit is set to 1.
H. K. BIL
0
VM
0
KOREAN ST
0
SPC SOUND
0
PIC. ROT
0
AUTO TV SYS.
0
NO BAL.
0
THAI BIL
0
OPERATION GUIDE
SERVICE MODE
How to set up new NVM (or initialize already written one)
(1) AC ON
(2) Enter Service Mode - describing below how to enter
(3) Push the commander button “5” and “0” sequentially (only set initial data into RAM, but not write them into
NVM yet)
(4) Push the commander button “2” and “0” sequentially (copy the data into all NVM area - all wide modes and
50/60Hz respectively)
(5) Push the commander button “8” and “0” sequentially (initialize user data, select program 1 and exit Service Mode)
(6) Select TV system and execute Auto Preset
How to enter Service Mode
At power ON, push the commander button “test” and “TV ON” sequentially
At stand-by, push the commander button “display”, “5”, “vol +” and “power” sequentially
How to exit Service Mode
Push the commander button “other ON” or power (AC) OFF
How to increment/decrement items and data
Items : push the commander button “1” / “4”
Data : push the commander button “3” / “6” (not write into NVM)
Other operations
Write data into NVM - push the commander button “mute” and “0” sequentially
Read data from NVM - push the commander button “7” and “0” sequentially
Copy 50Hz data into 60Hz area - push the commander button “display” and “0” sequentially
SELF DIAGNOSIS MODE
How to enter Self Diagnosis Mode
At stand-by, push the commander button “display”, “5”, “vol-” and “power” sequentially
How to exit Self Diagnosis Mode
Push the commander button “other ON” or power (AC) OFF
Other operations
Clear data and Write into NVM - push the commander button “8” and “0” sequentially
HOTEL TV MODE
How to enter Hotel TV Mode ON stage
At stand-by, push the commander button “display”, “MUTE”, “vol +” and “power” sequentially
The Hotel TV setup display, where the maximum level of the volume can be applied (=35 or above)
Write data into NVM - push the commander button “mute” and “0” sequentially
How to enter Hotel TV Mode OFF stage
At stand-by, push the commander button “display”, “MUTE”, “vol -” and “power” sequentially
Write data into NVM - push the commander button “mute” and “0” sequentially
Modification Note
The item including the new addition is yellow.
No. 34 OPB3
– 22 –
KV-PG14N70
RM-915
4-3. PICTURE QUALITY ADJUSTMENT
SUB COLOR ADJUSTMENT
1. Select Video.
2. Input a PAL color-bar.
3. Set to the following condition:
PICTURE 100%, BRIGHTNESS 50%, COLOR 50%
4. Connect an oscilloscope to pin 1 (B OUT) of CN300, A board.
5. Set to Service Mode and select 13 ‘SC1’ with 1 and 4 of
the commander then adjust to VB2=VB3=VB4 with 3  and
6.
6. Press 
[MUTING]
 
→ - of the commander to write the data.
7. Adjust 13 ‘SC1’ as step 2 to 5 when receiving NTSC
color-bar.
SUB HUE ADJUSTMENT
1. Select Video.
2. Input a NTSC 3.58, color-bar into Video/TV mode.
3. Set the following condition:
PICTURE 100%, BRIGHTNESS 50%, COLOR 50%
4. Connect an oscilloscope to pin 1 (B OUT) of CN300, A
board.
5. Select 11"SHU" with 1 and 4 of the commander by setting
to Service Mode and adjust to VB1=VB2=VB3=VB4 with 3
and 6 .
The highest level of VB1,VB2,VB3,VB4 must be aligned at
the same line. Ideal difference level between VB2 and VB3
should be within ± 110mV.
6. Press 
[MUTING]
 
→ - of the commander to write the data.
7. Select TV channel with NTSC 3.58 and repeat 3 to 5.
8. Press 
[MUTING]
 
→ - of the commander to write the data.
9. Single system model with NTSC 4.43, select TV channel with
NTSC 4.43 and repeat 3 to 5.
VB1
VB2
VB3
VB4
VB2 = VB3 = VB4
VB2  =  VB3  =  VB4  (Difference is within 70mV)
VB1
VB2
VB3
VB4
VB1 = VB2 = VB3 = VB4
4-4. DEFLECTION ADJUSTMENT
NORMAL MODE (50Hz)
1.
Set to Service mode.
2.
Input PAL color bar.
3.
Using the 1 and 4 button, select category GEO
(Service Mode).
4.
Raise/lower the data using the 3 and 6 buttons.
Select and adjust the following items to obtain optimum
image.
Service Item
GEO : 00
HPS
H POSITION
01
HSZ
H SIZE
02
PAP
PIN AMPLITUDE
03
CPN
CORNER PIN
04
TLT
TILT
05
VSL
V SLOPE
06
VAP
VERTICAL AMPLITUDE
07
SCO
S CORRECTION
08
VPS
V SHIFT
 NORMAL MODE (60Hz)
5. Input 525/60Hz signal.
6. Using the 1 and 4 buttons select category GEO (Service
Mode).
7. Select and adjust the following items to obtain obtimum
image.
Raise/lower the data with the 3 and 6 buttons.
Service Item
GEO : 00
HPS
H POSITION
01
HSZ
H SIZE
02
PAP
PIN AMPLITUDE
03
CPN
CORNER PIN
04
TLT
TILT
05
VSL
V SLOPE
06
VAP
VERTICAL AMPLITUDE
07
SCO
S CORRECTION
08
VPS
V SHIFT
4-5. A BOARD ADJUSTMENT AFTER IC003
(MEMORY) REPLACEMENT
1.
Enter to Service Mode.
2.
Press commander buttons 5 and - (Data Initialize), and
2 and - (Data Copy) to initialize the data.
3.
Call each item number and check if the respective screen
shows the normal picture.
In cases where items are not well adjusted, rectify the fine
adjustment.
Write the data per each item number (
[MUTING]
 +-).
4.
Select item numbers 4E ‘OP0’, 4F ‘OP1’, 50 ‘OP2’ and
respectively set the bit per model with command buttons
3 and 6 .
5.
Press commander buttons 8 and - (Test Normal) to return
to the data that was set on the shipment from the factory.
(This will also cancel Service Mode.)
– 23 –
KV-PG14N70
RM-915
4-6. PICTURE DISTORTION ADJUSTMENT
Item Number 00 – 08
01
HSZ (H SIZE)
04
TLT (TILT)
06
VAP (VERTICAL AMPLITUDE)        
00
HPS (H POSITION)
02
PAP (PIN AMPLITUDE)
03
CPN (CORNER PIN)
05
VSL (V SLOPE)
08
VPS (V SHIFT)  
07
SCO (S CORRECTION)
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