Tuner
R008
P990
P801
Power
Supply
ZX01
5
1
P506
Fig. 2-1-1
Address
Data
14
56
15
19
16
20
17
16
18
12
19
1d
Main Board
2-1. PIF Circuit
2-1-1. In Case of IC01 is Replaced
When IC01 (
µ
PC1852) is replaced, the EEPROM data in the VCR is required to memorize a new set of default values as
initial alignment. So perform the following procedures:
1. Press the channel up/down buttons on the VCR simultaneously for more than five seconds while the unit is in the
power on mode.
2. And then within two seconds, press the number 9 button on the remote control unit.
3. The following data will be set in the corresponding address as tabulated:
4. Press power button to set the unit to power off mode.
5. Pull out the power cord plug from the AC outlet once and insert the power cord plug into the AC outlet again.
6. The initialization of default data for MTS IC is now completed.
The above-mentioned procedure will only change the software settings of the MTS.
If the channel separation test still fails, proceed to do step 7.
7. • Delete Jumper JP001.
• Add R008 (variable resistor 20 k
Ω
).
• Add R009 (resistor 10 k
Ω
).
• Change RD02 to resistor 11 k
Ω.
• Change RD03 to 0 ohm maxi.
• Tune R008 to achieve the best possible channel separation.
RD03
CD07
RD02
R008
R009
16
7
H001
IC01
JP001
