Fisher pc 20s00m schematic

PC-20S00M

Model:

COLOR TELEVISION

FGH

FILE NO.

G8FHM, PRODUCT CODE 111350184

REFERENCE No. SM5110089-01

Notice

CORRECTION
SERVICE FLASH

PRODUCTION CHANGE
ADD INFORMATION

Please add this notice to the Service Manual listed below.

REVISION 1

Category:

U.S.A.

Destination:

JUNE / 7 / 2001

Date:

G8F-20S00M1

Effective from: Chassis No.

SM5110089

REF: No.

NOTE: Match the Chassis No. on the unit’s back cover with the Chassis No. in the Service Manual.

If the Service Manual Chassis No. does not match the unit’s, additional Service Literature is

required. This chassis is similar to Chassis No. G8F-20S00M0. Only the Difference Service
Information is given in this manual. For detailed Service Information, refer to the Original Service
Manual and Notices for Chassis No. G8F-20S00M0 used in Model PC-20S00M (SM5110089).



INITIAL BUS DATA SETUP

Note: When IC802 (EEPROM) is replaced, the Service Menu NO. 01 HP (H Phase), NO. 13 TDS (Trap & D SW), NO. 24 AG (AFC

Gain), NO. 26 SCO (Sub-Color), NO. 27 STI (Sub-Tint), NO. 28 SSH (Sub-Sharpness), NO. 29 OPT (Option 1), NO. 30 OP2
(Option 2),NO. 31 HR (OSD Display H-Position), NO. 60 R00 (ROM Data 0), NO. 61 R01 (ROM Data 1), NO. 64 R04 (ROM

Data 4), NO. 68 R08 (ROM Data 8), NO. 70 R10 (ROM Data 10), NO. 71 R11 (ROM Data 11), NO. 72 R12 (ROM Data 12),
NO. 73 R13 (ROM Data 13), NO. 74 R14 (ROM Data 14), NO. 75 R15 (ROM Data 15), NO. 76 R16 (ROM Data 16), NO. 77
R17 (ROM Data 17), NO. 78 R18 (ROM Data 18) and NO. 132 R72 (ROM Data 72) should be set up for proper TV opera-

tion before attempting the service adjustments.

1. Disconnect the AC power cord (AC 120V line).

2. While pressing the MENU key, reconnect the AC power cord. The Service Menu display will now appear.

3. Select NO. 01 HP (H Phase) with ▲ or ▼ key. Adjust the data with + or – key for 18.

4. Select NO. 13 TDS (Trap & D SW) with ▲ or ▼ key. Adjust the data with + or – key for 1.

5. Select NO. 24 AG (AFC Gain) with ▲ or ▼ key. Adjust the data with + or – key for 0.

6. Select NO. 26 SCO (Sub Color) with ▲ or ▼ key. Adjust the data with + or – key for 7.

7. Select NO. 27 STI (Sub Tint) with ▲ or ▼ key. Adjust the data with + or – key for 19.

8. Select NO. 28 SSH (Sub Sharpness) with ▲ or ▼ key. Adjust the data with + or – key for 10.

9. Select NO. 29 OPT (Option 1) with ▲ or ▼ key. Adjust the data with + or – key for 100.

10. Select NO. 30 OP2 (Option 2) with ▲ or ▼ key. Adjust the data with + or – key for 0.

11. Select NO. 31 HR (OSD Display H-Position) with ▲ or ▼ key. Adjust the data with + or – key for 30.
11a.Select NO. 60 R00 (ROM Data 0) to NO. 132 R72 (ROM Data 72) with ▲ or ▼ key and adjust each of the data with + or

– key as specified in Table 1 in the following pages.

12. Press the MENU key to turn off the Service Menu display.

1. IN THE SERVICE ADJUSTMENTS LIST
PAGE 4

Note: The change in Initial Bus Data Setup above is effective from Chassis No. G8F-20S00M0.

— 2 —

Table 1. ON-SCREEN SERVICE MENU

When IC802 (EEPROM) is replaced, check the bus data to confirm they are the same as below. The shaded menu should be
checked and be set up or readjusted according to the procedures described in the following pages. Initial Setup Data marked with
an * should be changed from Initial Reference Data. (See page 4 for Initial Bus Data Setup.)

NO. TITLE

INITIAL REFERENCE INITIAL SETUP

RANGE OF DATA FUNCTION

DATA DATA

01 HP 15 18* 0~31 Horizontal Phase (Horizontal Centering)
02 IAS 0 0 0, 1 IF AGC Switch 0: TV (Normal) 1: AV (IF Gain Minimum)
03 RAD 25 25 0~63 RF AGC Delay
04 PT 64 64 0~127 PLL Tuning
05 ADA 31 31 0~63 APC Detect Adjust
06 CD 0 0 0, 1 C-Diff
07 VS 32 32 0~63 Vertical Size
08 RB 0 0 0~255 Red Bias
09 GB 0 0 0~255 Green Bias
10 BB 0 0 0~255 Blue Bias
11 RD 60 60 0~127 Red Drive
12 BD 60 60 0~127 Blue Drive
13 TDS 0 1* 0, 1 Trap & D (B.P.F.) Switch 0: OFF 1: ON
14 AF 0 0 0, 1 Auto Flesh 0: OFF 1: ON
15 BS 0 0 0, 1 Black Stretch

1: OFF 0: ON

16 VL 4 4 0~7 Video Level
17 FL 15 15 0~31 FM Level
18 NIS 1 1 0, 1 N/I Switch (Black Noise Inverter)

1: OFF 0: ON

19 ABL 1 1 0,1 ABL Defeat 0: OFF 1: ON
20 WP 1 1 0,1 White Peak Limiter 1: OFF 0: ON
21 GD 7 7 0~15 Green Drive Reduction
22 VC 0 0 0~7 Vert. Comp
23 VD 32 32 0~63 Vert. DC
24 AG 3 0* 0~3 AFC Gain

00: Auto 01: High Gain 10: Low Gain 11: Non-Gate

25 SB 32 32 0~63 Sub-Brightness
26 SCO 10 7* 0~31 Sub-Color
27 STI 14 19* 0~31 Sub-Tint
28 SSH 8 10* 0~15 Sub-Sharpness
29 OPT 32 100* 0~255 Option 1 (See Note 1 page 6.)
30 OP2 64 0* 0~255 Option 2 (See Note 2 page 6.)
31 HR 43 30* 0~63 H-Position (OSD H-Position)
32 ATT 15 15 0~15 Attenuation
33 STE N/A N/A N/A N/A
34 FIL N/A N/A N/A N/A
35 WDB 32 32 0~32 Wide Band
36 SPC 32 32 0~32 Spectral
37 SPV N/A N/A N/A N/A
38 SBO 5 5 0~255 Sub Bright Offset
39 PCO N/A N/A N/A N/A
40 PTI N/A N/A N/A N/A
41 PUV N/A N/A N/A N/A
42 PDV N/A N/A N/A N/A
43 PLH N/A N/A N/A N/A
44 PRH N/A N/A N/A N/A
45 PCN N/A N/A N/A N/A
46 PBS N/A N/A N/A N/A

47 DRV

0~127 Red drive Adjustment (See Note 3 page 6.)
0~127 Blue Drive Adjustment (See Note 3 page 6.)

– 0 0 0~255 Red Bias Adjustment (See Note 4 page 6.)

48 – 0 0 0~255 Green Bias Adjustment (See Note 4 page 6.)

– 0 0 0~255 Blue Bias Adjustment (See Note 4 page 6.)
60 R00 0 231* 0~255 ROM Data 0
61 R01 0 151* 0~255 ROM Data 1
62 R02 0 0 0~255 ROM Data 2

1. IN THE SERVICE ADJUSTMENTS LIST (Continued)
PAGE 5