Sony KV-PG21M70 Service Manual ▷ View online
– 17 –
KV-PG21P40/PG21M70/PG21P70
RM-952
SECTION 4
CIRCUIT ADJUSTMENTS
4-1. ADJUSTMENT WITH COMMANDER
Service adjustments to this model can be performed using the
supplied Remote Commander RM-952
supplied Remote Commander RM-952
a. ENTERING SERVICE MODE
With the unit on standby
With the unit on standby
This operation sequence puts the unit into service mode.
The screen display is :
b. METHOD OF CANCELLATION FROM SERVICE
MODE
Set the standby condition (Press [POWER] button on the com-
mander), then press [POWER] button again, hereupon it becomes
TV mode.
c. METHOD OF WRITE INTO MEMORY
1) Set to Service Mode.
2) Press [1] (UP) and [4] (DOWN), to select the adjustment.
4) Press [MUTING] button to indicate WRITE on the screen.
5) Press [0] button to write into memory.
d. MEMORY WRITE CONFIRMATION METHOD
1) After adjustment, pull out the plug from AC outlet, and then
plug into AC outlet again.
2) Turn the power switch ON and set to Service Mode.
3) Call the adjusted items again to confirm adjustments were
made.
n
[DISPLAY]
n
5
n
VOL (+)
n
[POWER]
4-2. ADJUSTMENT METHOD
Item Number 00 HPS
This explanation uses H Shift as an example.
1. Select “00 HPS” with the 1 and 4 buttons.
2. Raise/lower the data with the 3 and 6 buttons.
3. Select the optimum state. (The standard is 1F for PAL
reception.)
4. Write with the
[MUTING]
button. (The display changes to
WRITE.)
5. Execute the writing with the - button. (The WRITE
display will be changed to red color while excuting, and
back to SERVICE.)
Example on screen display :-
1, 4
Select the adjustment item.
↓
3, 6
Raise/lower the data value.
↓
[MUTING]
Writes.
↓
-
Executes the writing.
e. OTHER FUNCTION VIA REMOTE COMMANDER
7, -
All the data becomes the values in memory.
8, -
All user control goes to the standard state.
5, -
Service data initialization (Be sure not to use
usually.)
2, -
Copy and write all data.
[MUTE]
, -
Write 50Hz adjustment data to 60Hz or vice
versa.
Use the same method for all Items. Use 1 and 4 to select the
adjustment item, use 3 and 6 to adjust, write with [MUTING],
then execute the write with -.
Note : 1. In [WRITE], the data for all items are written into
memory together.
2. For adjustment items that have different standard
data between 50Hz or 60Hz, be sure to use the
respective input signal after adjustment.
respective input signal after adjustment.
PAL,SECAM:50
NTSC :60
NTSC :60
HPS
33
SERVICE
Data
Mode
Item
Adjustment
Software version
Suffix No
(OEM Code)
(OEM Code)
Total Power-On time (hours)
00
Item No
Depends on signal
1.6C
00
000A
50
079S
080S
080S
33
SERVICE 50
HPS
Adjusted with [3] and [6] buttons.
GREEN
Write with [MUTING]
Write executed with [0]
00
33
WRITE
50
HPS
GREEN
00
33
WRITE
50
HPS
00
RED
The WRITE display
then the display
returns to green
SERVICE
The WRITE display
then the display
returns to green
SERVICE
– 18 –
KV-PG21P40/PG21M70/PG21P70
RM-952
Adjustment Item Table
Device
Data
Range
Range
Initial
Data
Data
Note for Different Data
Function
Item
Adj.
No.
Item
00
HPS
00–3F
24
50/60Hz
H Position
TDA8843/44(8A)
01
HSZ
00–3F
23
50/60Hz
H Size
02
PAP
00–3F
21
50/60Hz
Pin Amplitude
03
CPN
00–3F
29
50/60Hz
Corner Pin
04
TLT
00–3F
20
50/60Hz
Tilt
05
VSL
00–3F
20
50/60Hz
V Slope
06
VAP
00–3F
1D
50/60Hz
V Amplitude
07
SCO
00–3F
20
50/60Hz
S Correction
08
VPS
00–3F
20
50/60Hz
V Shift
09
VZM
00–3F
19
Vertical Zoom
0A
VSC
00–3F
20
50/60Hz
Vertical Scroll
0B
RDR
00–3F
25
Dynamic/Others
R Drive
0C
GDR
00–3F
25
Dynamic/Others
G Drive
0D
BDR
00–3F
25
Dynamic/Others
B Drive
0E
SBR
00–7F
4B
Sub Brightness
0F
PMX
00–3F
27
TV/Video/Teletext
Picture Maximum Data
10
PMI
00–3F
05
Picture Minimum Data
11
SHU
00–0F
07
TV/Video
Sub Hue
12
SSH
00–03
01
TV/Video
Sub Sharpness
13
SC1
00–3F
1F
50/60Hz
Sub Color Lower
14
SC2
00–3F
0B
50/60Hz
Sub Color Higher
15
FO
00–03
00
TV/Video/Teletext
01 Time Constant
16
AGT
00–3F
30
TV/Video/Teletext
AGC Take Over
17
VSW
00–01
0
TV/Video/Teletext
Video Mute Switch
18
FOR
00–03
00
Forced Field Frequency
19
DL
00–01
0
De-interlace
1A
POC
00–01
0
Fixed 01 Synchro. Mode
1B
COR
00–01
0
TV/Video/Teletext
Noise Coring
1C
RBL
00–01
0
TV/Video/Teletext
RGB Blanking
1D
YDL
00–0F
08
PAL/NTSC/SECAM
Y-Delay
1E
VP1
00–FF
00
Extra Bits (see page 20)
1F
VP2
00–FF
01
Extra Bits (see page 20)
20
VP3
00–FF
08
Extra Bits (see page 20)
21
WST
00–FF
15
W/G Stereo Threshold
MSP3417G(80)
22
WBT
00–FF
EA
W/G Bilingual Threshold
23
WLL
00–FF
05
W/G Monaural Threshold
24
WAC
00–0F
00
W/G Agreement count
25
WDL
00–FF
30
W/G Search Delay
26
NDL
00–FF
20
NICAM Search Delay
27
SDL
00–FF
10
Stereo Status Read Delay
28
AGC
00–01
01
AGC Switch auto/constant
29
REL
00–3F
28
AGC Gain at Constant Mode
2A
CRM
00–01
0
Carrier Muting on/off
2B
ACO
00–01
1
Audio Clock-out on/off
2C
FP
00–7F
1B
FM Prescale for B/G, I, D/K
2D
FPM
00–7F
32
FM Prescale for M
2E
FH
00–7F
36
FM Prescale for HDEV (non-M)
2F
FHM
00–7F
65
FM Prescale for HDEV (M)
30
WGP
00–7F
2A
W/G Prescale
31
NIP
00–7F
6D
NICAM Prescale
32
ERR
00–FF
50
Auto FM Switch Threshold
33
VOL
00–7F
73
DFP Volume Maximum
34
ING
00–0F
00
M System/non-M/Video
Input Gain
TDA7438(88)
35
VOM
00–3F
01
M System only
Volume Output Gain
36
BCS
00–03
01
Bass Center Shift
37
TCS
00–03
01
Treble Center Shift
38
TXH
00–FF
2D
Horizontal Display Position
SAA5264(58)
39
TXV
00–3F
2A
Vertical Display Position
(line offset from V-sync)
(line offset from V-sync)
3A
THD
00–7F
00
H-sync Active Edge Shift
3B
TVD
00–7F
0F
V-sync Active Edge Shift
3C
HPL
00–01
00
00:Positive, 01:Negative
H-sync Polarity Configuration
3D
VPL
00–01
00
00:Positive, 01:Negative
V-sync Polarity Configuration
3E
FPL
00–01
00
00:V-sync second half line, Field Polarity Configuration
01:V-sync first half line
01:V-sync first half line
3F
FMD
00–03
02
00:Auto, 01:Default,
Force Mode
02:Fastext, 03:Top mode
– 19 –
KV-PG21P40/PG21M70/PG21P70
RM-952
Adjustment Item Table
Device
Data
Range
Range
Initial
Data
Data
Note for Different Data
Function
Item
Adj.
No.
Item
40
TBR
00-0F
08
Set Teletext RGB Brightness
SAA5264(58)
42
TCH
00-03
01
Twisted Character Set Configuration
43
BKP
00-3F
00
00 : Positive, 01 : Negative
Picture Data at Blanking OFF
44
ODL
00-FF
10
Power ON Delay
Other Control
45
OSH
00-3F
0A
OSD H Position
46
TSH
00–03
00
00:B/G, 01:I, 02:D/K, 03:M
TV System at Auto Preset
47
DKS
00–01
01
D/K Stereo enable/disable
48
MUT
00–01
00
Muting on/off at No Sync
49
ABL
00–01
00
Bright ABL Switch
4A
SCM
00–01
00
SECAM Trap active/inactive
4B
SLS
00–01
01
Active SL.OR.IFI Sync
4C
SSV
00–07
02
Space Sound Volume Step Up
4D
VPW
00–7F
28
Timer of Video Processor start up wait
4E
OP1
00–FF
2F
Optional Flags 0 (see page 20)
4F
OP2
00–FF
0F
Optional Flags 1 (see page 20)
50
OP3
00–FF
00
Optional Flags 2 (see page 20)
NOTE
• Standard data listed on the Adjustment Item Table are reference values, therefore it may be different for each model
and for each mode.
• Note for Different Data Those are the standard data values written on the microprocessor. Therefore, the data values
of the modes and stored respectively in the memory.
In case of a device replacement, adjustment by rewriting the data value is necessary for some items.
– 20 –
KV-PG21P40/PG21M70/PG21P70
RM-952
ITEM INFORMATION
No. 1E VP1
HCO
EHT Tracking Mode 1 = on V and E-W, 0 = only on V
0A(7)
EVG
Enable Vertical Guard 1 = enable, 0 = disable
0A(6)
SBL
Service Blanking 1 = active, 0 = inactive
OB(7)
PRD
Over-voltage Protection Detection 1 = enable, 0 = disable
OB(6)
HBL
RGB Blanking Mode 1 = wide blanking, 0 = normal blanking
02(7)
AKB
Black Current Stabilisation 1 = not active, 0 = active
02(6)
MAT
PAL-SECAM-/NTSC Matrix 1 = PAL matrix. 0 = adapted to standard
0E(7)
VID
Video IdentMode 1 = not for 01-loop, 0 = for 01-loop
09(7)
AV Input
00 = no AV Input model
01 = 1 AV Input model
10 = 2 AV Input model
11 = 2AV Input and RGB input model
AVMUT
1 = AV multi is always muted if no signal input, 0 = not muted always
Other optional bits are effective if set ti 1.
No. 20 VP3
Item
KV-PG21P40
(Singapura)
(Singapura)
KV-PG21M70
KV-PG21P70
KV-PG21P40
(Malaysia)
(Malaysia)
KV-PG21P40
(Malaysia)
(Malaysia)
VID
0
0
0
0
0
MAT
1
1
1
1
1
1 V-Curve
0
0
0
0
0
No NICAM
0
0
0
0
0
-
0
0
0
0
0
HDEV
0
0
0
0
0
XTAL SEL
00 = only 4.43 XTAL
01 = only 3.58 XTAL
10 = not used
11 = both 4.43 and 3.58 XTAL
1 V-Curve (for monaural model)
1 = using common volume curve for every mode and every TV system
0 = another volume curve available for video mode and M system
0 = another volume curve available for video mode and M system
HDEV
1 = High Deviation Mode switch available, 0 = not available
No NICAM
1 = NICAM search is disable in any TV system, 0 = NICAM search operates
Other optional bits are effective if set to 1.
XTAL SEL
1
1
1
1
1
1
1
1
1
1
No. 1E VP1
Item
KV-PG21P40
(Singapura)
(Singapura)
KV-PG21M70
KV-PG21P70
KV-PG21P40
(Malaysia)
(Malaysia)
KV-PG21P40
(Malaysia)
(Malaysia)
M
1
1
1
1
1
D/K
1
1
1
1
1
I
1
1
1
1
1
B/G
1
1
1
1
1
AVMUT
0
0
0
0
0
AV Input
0
1
0
1
0
1
0
1
0
1
-
0
0
0
0
0
Item
KV-PG21P40
(Singapura)
(Singapura)
KV-PG21M70
KV-PG21P70
KV-PG21P40
(Malaysia)
(Malaysia)
KV-PG21P40
(Malaysia)
(Malaysia)
VID
0
0
0
0
0
MAT
AKB
HBL
PRD
0
0
0
0
0
SBL
0
0
0
0
0
EVG
0
0
0
0
0
HCO
0
0
0
0
0
Click on the first or last page to see other KV-PG21M70 service manuals if exist.