Harmony Integrated Circuits - JBL HARMONY Service Manual

CD Player/Tuner Stereo System
IC202 - LC75824 LCD Driver
VDD1
VDD2
INH
OSC
VDD
VSS
IC401 - TDA7313 Digital Audio Processor
2.2uF
C1 L1 15
LEFT
C2 L2 14
INPUTS
C3 L3 13
C4 R3
RIGHT
C5 R2 10
INPUTS
C6 R1 11
2.2uF
VCC

HARMONY INTEGRATED CIRCUITS

COMMON
DRIVER
CLOCK
GENERATOR
C11
C5 2.2uF
100nF
OUT(L) IN(L)
17 16
L1
L2
L3
INPUT
SELECTOR
OR IN
9 R3
R2
R1
SUPPLY
2 3 1 7 6
AGND CREF OUT(R) IN(R)
C7 22uF C10
C8 2.2uF
------------
SEGMENT DRIVER & LATCH
SHIFT REGISTER
5.6K R2
C14 C15
100nF 100nF
LOUD(L) BOUT(L) BIN(L)
12 19 18
VOL
BASS TREBLE
LOUD
SERIAL BUS DECODER , LATCHES
VOL
BASS TREBLE
LOUD
8 21 20
LOUD(R) BOUT(R) BIN(R)
100nF 100nF 100nF
C12 C13
5.6K R1
----
ADDRESS
DETECTOR
C17
2.2nF
TREBLE(L)
4
SPKR
ATT
25
MUTE
SPKR
ATT
23
MUTE
28
27
26
SPKR
ATT
24
MUTE
SPKR
ATT
22
MUTE
5
TREBLE(R)
2.2nF
C16
HARMONY
OUT
LEFT FRONT
OUT
LEFT REAR
SCL
SDA BUS
DIG GND
OUT
RIGHT FRONT
OUT
RIGHT REAR
3 1