Section 4. Diagrams - Sony TC-K333ESA Service Manual

| TC-K333ESA/K990ES
SECTION 4
DIAGRAMS
4-1-1. 1€502, 505 (CX20188) PIN FUNCTIONS
An electronic switch circuit for the operation mode control is included. Controls are performed by adding direct current
voltages VH, VM, and VL to Dolby OFF/B/C and calibration //REC/ Playback terminals.
CX20188
Pin name Description
l. Vec Positive power supply terminal.
2, 41. REC IN Recording input terminal.
3. I] REF Reference current input terminal.
4, 39, PB IN Playback input terminal.
5. CAL/REC/PB | Calibration/recording/playback select terminal
6, 37, PB FB Playback feedback terminal.
T, 36, REC FB Recording feedback terminal,
8, 35. GND GND terminal.
' LINE OUT | Line output (decode output) terminal.
SSK Spectral skewing switch terminal.
VF IN Encode circuit input terminal.
HPF H HLS high-pass filter terminal.
TCH 2 HLS detector time constant terminal 2,
HLS detector time constant terminal 1.
HLS encoder error reduction terminal.
LLS detector time constant terminal 2,
LLS detector time constant terminal 1,
LLS encoder error reduction terminal.
LLS high-pass filter terminal.
Anti-saturation terminal. —
Recording output (encode output) terminal.
Dolby NR off/B type/C type select terminal.
Calibration input terminal.
Negative power supply terminal.