TEAC CR-L600 Repair Manual

Pin No. Symbol I/O Functional Description Remarks
TMAX detection result output terminal. Selected by 3-state output.
29 TMAXS O
command bit (TMPS). (P2VREF, PVREF, VSS)
TMAX detection result output terminal. Selected by
command bit (TMPS).
TMAX Detection TMAX Output
3-state output.
30 TMAX O Longer than fixed freq. P2VREF (P2VREF, HiZ, VSS)
Shorter than fixed freq. VSS
Within the fixed freq. HiZ


31 LPFN I LPF amplifier inverting input terminal for PLL. Analog input.
32 LPFO O LPF amplifier output terminal for PLL. Analog output.
33 PVREF PLL reference voltage supply terminal.
VCO center frequency reference level terminal.
34 VCOREF I
Normally, keep at PVREF level.
35 VCOF O VCO filter terminal. Analog output.
36 AVSS Analog GND terminal.
37 SLCO O Data slice level output terminal. Analog output.
Analog input.
38 RFI I RF signal input terminal.
(Zin: selected by command)
39 AVDD Analog power supply voltage terminal.
Analog input.
40 RFCT I RFRP signal center level input terminal.
(Zin: 50 k )
41 RFZI I RFRP zero cross input terminal. Analog input.

42 RFRP I RF ripple signal input terminal. Analog input.
43 FEI I Focus error signal input terminal. Analog input.
44 SBAD I Sub-beam adder signal input terminal. Analog input.
45 TSIN I Test input terminal. Normally, keep at VREF level. Analog input.
Tracking error signal input terminal.
46 TEI I Analog input.
Take in at tracking servo on.
Analog input.
47 TEZI I Tracking error zero cross input terminal.
(Zin: 10 k )
48 FOO O Focus servo equalizer output terminal.
Analog output.
49 TRO O Tracking servo equalizer output terminal. (2VREF~AVSS)
50 VREF Analog reference voltage supply terminal.
RF amplitude adjustment control signal output terminal.
51 RFGC O
3-state PWM signal output. (PWM carrier 88.2 kHz)
Tracking balance control signal output terminal.
52 TEBC O
3-state PWM signal output. (PWM carrier 88.2 kHz)
Feed equalizer output terminal. 3-state output.
53 FMO O
3-state PWM signal output. (PWM carrier 88.2 kHz) (2VREF, VREF, VSS)
Speed error signal or feed search equalizer output terminal.
54 FVO O
3-state PWM signal output. (PWM carrier 88.2 kHz)
Disc equalizer output terminal.
55 DMO O
(PWM carrier 88.2 kHz for DSP, Synchronize to PXO)
56 2VREF Analog double reference voltage supply terminal.
APC circuit ON/OFF indication signal output terminal.
57 SEL O At the laser on time, HiZŽ level at UHS L and H level at
UHS H.
? 13?