SONY BKPF-131B
Service Manual

1-4. Location and Function of Switches/LEDs

!\ S601-1: AUTO FREEZE switch Selected the auto freeze function that is automatically selected into the FREEZE mode if the input signal is not received. S601-3: Line operation setting switch Selected the optional line of the vertical blanking into the Y/C separation mode or B&W mode. ON : Y/C separation mode OFF : B&W mode S601-5, S601-6, and S601-7 : Line setting switch for SETUP REMOVE Selected the line that is removed the SETUP within the vertical blanking period. S601-7: ON Removed the SETUP of the lines 10 and later of the odd field. Removed the SETUP of the lines 273 and later of the even field. S601-7: OFF Removed the SETUP of the lines with selected at the switches S601-5 and S601-6.
S601-5 ON ON OFF S601-6 ON OFF � Setup Remove Range Odd field: Lines 22 and later Even field: Lines 285 and later Odd field: Lines 22 and later Even field: Lines 284 and later Odd field: Lines 21 and later Even field: The latter half of lines 283 and later

!; S401-1: Free-running adjustment switch for the parallel-serial conversion Selected to the �ON� when free-running adjusting for the parallel-serial conversion. (When selecting to the �ON�, the SERIAL OUT is not provided. ERROR indicator lights red.) Factory setting : OFF S401-2: (Factory use only) Factory setting : Fixed to OFF.

S601-8 : NON STANDARD switch ON : Received the signal with the unstable SCH. (But when the input signal is changed from the signal with the stable SCH to the unstable one, the image may be unstable about three seconds. When the input signal is changed from the signal with the unstable SCH to the stable one, the image may be shifted.) OFF : Received the signal with the stable SCH. S601-2 and S601-4,: (Factory use only) The factory settings are shown below. (The marks indicate the positions of the switch knobs.)
ON

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1-6 (E)

BKPF-131B