Service manual

HT-X1
8 – 2
IC101/102/103 VHiLM4732TA-1: Power amp. (LM4732TA)
In this unit, the terminal with asterisk mark (*) is (open) terminal which is not connected to the outside.
IC507 VHiCD4053M+-1: (CD4053M)
Pin No. Terminal Name Input/Output Function
1* N.C. — Not used.
2 V- Input Power supply. (negative)
3* N.C. — Not used.
4 V- Input Power supply. (negative)
5 V+ Input Power supply. (positive)
6* N.C. — Not used.
7 Out A Output Signal output.
8 V+ Input Power supply. (positive)
9 V+ Input Power supply. (positive)
10 V- Input Power supply. (negative)
11 V- Input Power supply. (negative)
12 GND — GND.
13* N.C. — Not used.
14 Mute A Input Mute.
15 -INA Input Signal input.
16 +INA Input Signal input.
17 V+ Input Power supply. (positive)
18 V- Input Power supply. (negative)
19 GND — GND.
20 Mute B Input Mute.
21 -INB Input Signal input.
22 +INB Input Signal input.
23* N.C. — Not used.
24* N.C. — Not used.
25 Out B Output Signal output.
26* N.C. — Not used.
27 V+ Input Power supply. (positive)
Pin No. Terminal Name Input/Output Function
1 BY Input/Output Input/Output.
2 BX Input/Output Input/Output.
3 CY Input/Output Input/Output.
4 CX or CY Input/Output Input/Output.
5 CX Input/Output Input/Output.
6 H Input Input.
7 VEE Input Power Supply.
8 VSS Input Power Supply.
9 C Input Control.
10 B Input Control.
11 A Input Control.
12 AX Input/Output Input/Output.
13 AY Input/Output Input/Output.
14 AX or AY Input/Output Input/Output.
15 BY or BY Input/Output Input/Output.
16 VDD Input