Circuit Board Location - Sony HCD-DX70 Service Manual

6-1. CIRCUIT BOARD LOCATION

MAIN TRANS board
CD SW board
PANEL board
PAD SWITCH board
MOTOR board
CD SENSOR board
HEAD (A) board
HEAD (B) board
SUB TRANS board
SENSOR board
MAIN board
POWER board
DRIVER board
VIDEO board
BD board
SW board
• WAVEFORMS
– BD BOARD –
1 3
IC101 yj (XTAO) IC101 ra (TE)
CD PLAY MODE CD PLAY MODE
6.4Vp-p
16.9344MHz
2 4
IC101 ta (RFAC) IC101 el (FE)
CD PLAY MODE CD PLAY MODE
400nsec/div 1.2Vp-p
– PANEL BOARD –
1
IC601 is (XOUT)
STOP MODE
4.8Vp-p
4MHz
21 21
– MAIN BOARD –
1 3
IC501 qa (XC-OUT) T301 4
STOP MODE TAPE B REC MODE
approx 200mVp-p
3.0Vp-p
32.768kHz
2
IC501 qd (X-OUT)
STOP MODE
approx 170mVp-p
3.4Vp-p
16MHz
HCD-DX70
120Vp-p
80.7kHz