Atari 2600 Field Service Manual

Audio Troubleshooting Procedure,
Motherboard, (Continued)
I
Is there +5v
W
Repair trace
at one end of
from VMOD (+5v)
L20 1 ?
to 1201. I
Check that L201
is good (has con-
tinuity and isn't
shoned or cracked). 1
I
If audio is still
dead, check the trace
lines around C2 1 1
for opens and strons:
J
Is there now
an alternating Yes
audio tone from
the TV?
Pg. 4-2
Pg. 4-28
2600/2600A Domestic VCS

Atari 2600 Specifications

General

Manufacturer	Atari, Inc.
Release Date	September 11, 1977
CPU	MOS Technology 6507
CPU Speed	1.19 MHz
RAM	128 bytes
Graphics	Television Interface Adaptor (TIA)
Media	ROM cartridge
Successor	Atari 5200
Colors	128
Sound	2 channels
ROM	4 KB
Controller Input	Joystick